MIC-5050 Insulation Resistance Meter

Product Information

Specifications

• Product Name: User Manual Insulation Resistance Meter
• Model Numbers: MIC-10k1, MIC-5050
• Manufacturer: SONEL S.A.
• Address: Wokulskiego 11, 58-100 widnica, Poland
• Version: 2.07
• Date: 13.09.2023

Product Usage Instructions

1. Safety

Before using the insulation resistance meter, it is important to
familiarize yourself with the safety instructions provided in the
user manual to ensure safe operation and prevent any potential
hazards.

2. Menu

2.1 Wireless Transmission

The meter supports wireless transmission. Refer to the user
manual for detailed instructions on how to set up and use the
wireless transmission feature.

2.2 Measurement Settings

The user manual provides information on how to configure various
measurement settings on the meter. Follow the instructions
carefully to ensure accurate measurements.

3. Measurements

This section of the user manual explains the process of taking
measurements using the insulation resistance meter. It provides
step-by-step instructions on how to perform measurements
accurately.

4. Memory of Measurement Results

4.1 Structure of the Memory

The user manual describes the structure of the memory in the
meter and how measurement results are stored. It includes
information on the appearance of main windows in the measurement
recording mode.

4.2 Storing the Measurement Results in the Memory

Follow the instructions provided in the user manual to store
measurement results in the memory. It includes details on entering
results without extending the memory structure and extending the
memory structure if needed.

4.3 Viewing Memory Data

The user manual explains how to view data stored in the memory
of the insulation resistance meter. It provides instructions on
accessing and reviewing measurement data.

4.4 Deleting Memory Data

If you need to delete certain measurement data from the memory,
refer to the user manual for instructions on how to delete memory
data safely.

5. Data Transmission

5.1 Set of Accessories to Connect the Meter to a PC

To connect the insulation resistance meter to a PC for data
transmission, a set of accessories is required. The user manual
provides information on the necessary accessories and how to set
them up.

5.2 Data Transmission through USB Port

Learn how to transfer measurement data from the insulation
resistance meter to a PC using the USB port by following the
instructions provided in the user manual.

5.3 Data Transmission Using Bluetooth Module

If your meter supports Bluetooth connectivity, the user manual
explains how to transmit data wirelessly using the Bluetooth
module. It also includes instructions on how to read-out and change
the PIN code for Bluetooth connections.

6. Power Supply of the Meter

This section of the user manual provides information on how to
power the insulation resistance meter. It includes details on
battery requirements and instructions on connecting external power
sources if applicable.

7. Cleaning and Maintenance

To ensure optimal performance and longevity of the insulation
resistance meter, regular cleaning and maintenance are necessary.
The user manual provides guidelines on how to clean and maintain
the meter properly.

8. Storage

When the insulation resistance meter is not in use, proper
storage is essential to protect it from damage. Refer to the user
manual for recommendations on how to store the meter correctly.

9. Dismantling and Utilisation

If the insulation resistance meter requires dismantling or if it
is no longer usable, the user manual provides instructions on how
to dismantle the meter safely and dispose of it appropriately.

10. Technical Specifications

10.1 Basic Data

This section of the user manual presents the basic technical
data of the insulation resistance meter, including its model
numbers, manufacturer information, and version details.

10.2 Other Technical Data

The user manual provides additional technical data about the
insulation resistance meter, such as its capabilities, features,
and performance specifications.

10.3 Additional Data

In this section, you can find any additional technical
information about the insulation resistance meter that may be
relevant for its usage or maintenance.

Frequently Asked Questions (FAQ)

Q: How do I connect the insulation resistance meter to my

PC?

A: To connect the insulation resistance meter to your PC, you
will need a set of accessories provided with the meter. Follow the
instructions in the user manual to properly set up the connection
using either the USB port or Bluetooth module.

Q: Can I delete specific measurement data from the memory?

A: Yes, you can delete specific measurement data from the memory
of the insulation resistance meter. Refer to the user manual for
instructions on how to delete memory data safely.

Q: How often should I clean and maintain the insulation

resistance meter?

A: It is recommended to clean and maintain the insulation
resistance meter regularly to ensure optimal performance. Follow
the guidelines provided in the user manual for the appropriate
cleaning and maintenance intervals.

USER MANUAL INSULATION RESISTANCE METER
MIC-10k1 MIC-5050
SONEL S.A. Wokulskiego 11 58-100 widnica
Poland
Version 2.07 13.09.2023

MIC-10k1 and MIC-5050 meters are modern, high-quality meters, easy and safe in operation. Please acquaint yourself with this manual in order to avoid measuring errors and prevent possible problems in operation of the meter.

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CONTENTS

1 Safety …………………………………………………………………………………………………. 5

2 Menu…………………………………………………………………………………………………… 6

2.1 Wireless transmission …………………………………………………………………………………..6 2.2 Measurement settings …………………………………………………………………………………..7
2.2.1 Mains frequency…………………………………………………………………………………………………. 7 2.2.2 Times t1, t2, t3 for calculating absorption coefficients……………………………………………….. 8 2.2.3 Type of absorption coefficients ……………………………………………………………………………… 8 2.2.4 IISO short-circuit current………………………………………………………………………………………… 9 2.2.5 Setting limit values ……………………………………………………………………………………………… 9 2.2.6 Temperature unit………………………………………………………………………………………………. 10 2.2.7 Auto-incrementing of the memory cell number ………………………………………………………. 10 2.2.8 Filter……………………………………………………………………………………………………………….. 11 2.2.9 Chart type selection ………………………………………………………………………………………….. 11 2.3 Meter settings…………………………………………………………………………………………….12 2.3.1 LCD contrast ……………………………………………………………………………………………………. 12 2.3.2 Automatic shut-off (Auto-OFF) ……………………………………………………………………………. 13 2.3.3 Date and time…………………………………………………………………………………………………… 13 2.3.4 Factory (default) settings……………………………………………………………………………………. 14 2.3.5 Software update ……………………………………………………………………………………………….. 14 2.3.6 Key sounds ……………………………………………………………………………………………………… 15 2.3.7 Wireless communication ……………………………………………………………………………………. 16 2.4 Language selection …………………………………………………………………………………….16 2.5 Information about manufacturer ……………………………………………………………………16

3 Measurements…………………………………………………………………………………… 17
3.1 Diagnostics performed by the meter ­ limits …………………………………………………..17 3.2 Measurement of insulation resistance ……………………………………………………………17
3.2.1 Double-lead measurement …………………………………………………………………………………. 18 3.2.2 Three- lead measurement …………………………………………………………………………………… 24 3.2.3 Measurements with AutoISO-5000………………………………………………………………………. 26 3.2.4 Measurements with increasing voltage ­ SV …………………………………………………………. 30 3.2.5 Dielectric Discharge Indicator ­ DD ……………………………………………………………………… 31 3.2.6 Damage location (after-burning) ………………………………………………………………………….. 34 3.3 Low-voltage measurement of resistance………………………………………………………..35 3.3.1 Measurement of resistance of protective conductors and equipotential bonding with
±200 mA current……………………………………………………………………………………………….. 36 3.3.2 Calibration of test leads……………………………………………………………………………………… 37 3.4 Correcting the RISO value to the reference temperature ……………………………………38 3.5 Determining the length of the tested cable ……………………………………………………..39 3.6 Tightness test of MV cable jacket………………………………………………………………….40

4 Memory of measurement results ……………………………………………………….. 41

4.1 Structure of the Memory………………………………………………………………………………41 4.1.1 The appearance of main windows in the measurement recording mode…………………….. 41
4.2 Storing the measurement results in the memory……………………………………………..43 4.2.1 Entering the results without extending the memory structure ……………………………………. 43 4.2.2 Extending the memory structure………………………………………………………………………….. 44
4.3 Viewing memory data………………………………………………………………………………….49 4.4 Deleting memory data …………………………………………………………………………………51

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5 Data transmission……………………………………………………………………………… 52
5.1 Set of accessories to connect the meter to a PC …………………………………………….52 5.2 Data transmission through USB port……………………………………………………………..52 5.3 Data transmission using Bluetooth module …………………………………………………….53 5.4 Read-out and change of PIN code for Bluetooth connections……………………………53
6 Power supply of the meter …………………………………………………………………. 55
6.1 Monitoring the power supply voltage ……………………………………………………………..55 6.2 Battery power …………………………………………………………………………………………….55 6.3 Charging rechargeable battery……………………………………………………………………..56 6.4 Power supply from mains …………………………………………………………………………….56 6.5 General principles for using Li-Ion rechargeable batteries ………………………………..57 6.6 General principles for using gel (lead) rechargeable batteries …………………………..57
7 Cleaning and maintenance ………………………………………………………………… 58
8 Storage……………………………………………………………………………………………… 58
9 Dismantling and utilisation ………………………………………………………………… 58
10 Technical specifications ……………………………………………………………………. 59
10.1 Basic data …………………………………………………………………………………………………59 10.2 Other technical data ……………………………………………………………………………………62 10.3 Additional data …………………………………………………………………………………………..63
10.3.1 Additional uncertainties according to EN 61557-2 (RISO)………………………………………….. 63 10.3.2 Additional uncertainties according to EN 61557-4 (RCONT) ……………………………………….. 63
11 Manufacturer …………………………………………………………………………………….. 63

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1 Safety
MIC-10k1 and MIC-5050 meters are designed for performing check tests of protection against electric shock in mains systems. The meters are used for making measurements and providing results to determine safety of electrical installations. Therefore, in order to provide conditions for correct operation and accuracy of obtained results, the following recommendations must be observed: Before you proceed to operate the meter, acquaint yourself thoroughly with the present manual
and observe the safety regulations and specifications provided by the producer. Any application that differs from those specified in the present manual may result in a damage to
the device and constitute a source of danger for the user. MIC-10k1 and MIC-5050 meters must be operated only by appropriately qualified personnel with
relevant certificates authorising the personnel to perform works on electric systems. Operating the meter by unauthorised personnel may result in damage to the device and constitute a source of danger for the user. During measurements of insulation resistance, dangerous voltage up to 10 kV (MIC-10k1) or 5 kV (MIC-5050) occurs at the ends of test leads of the meter. Before the measurement of insulation resistance you must be sure that tested object is disconnected from the power supply. During the measurement of insulation resistance do not disconnect test leads from the tested object before the measurement is completed (see par. 3.2.1); otherwise the capacitance of the object will not be discharged, creating the risk of electric shock. Using this manual does not exclude the need to comply with occupational health and safety regulations and with other relevant fire regulations required during the performance of a particular type of work. Before starting the work with the device in special environments, e.g. potentially firerisk/explosive environment, it is necessary to consult it with the person responsible for health and safety. It is unacceptable to operate: a damaged meter which is completely or partially out of order, a meter with damaged insulation, a meter stored for an excessive period of time in disadvantageous conditions (e.g. excessive
humidity). If the meter has been transferred from a cool to a warm environment with a high level of relative humidity, do not start measurements until the meter is warmed up to the ambient temperature (approximately 30 minutes). Remember that BAT! message appearing on the display indicates insufficient voltage of power supply and the need to recharge the batteries. Before measurement, choose a correct measurement function and make sure that test leads are connected to respective measuring terminals. Do not power the meter from sources other than those listed in this manual. RISO meter inputs are electronically protected against overloads (caused by e.g. connecting the meter to a live circuit) up to 825 V for 60 seconds. Repairs may be performed only by an authorised service point.
ATTENTION! 11 kV DC crocodile clips and probes are designed to work only on objects without voltage.
Note: Due to continuous development of the meter’s software, the actual appearance of the display, in case of some of the functions, may slightly differ from the display presented in this operating manual.

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ATTENTION! To display the correct battery discharge status, it is necessary to completely discharge and then fully charge the battery, before starting the regular use of the meter.
Note: An attempt to install drivers in 64-bit Windows 8 and Windows 10 may result in displaying “Installation failed” message. Cause: Windows by default blocks drivers without a digital signature. Solution: Disable the driver signature enforcement in Windows.
2 Menu
Press MENU button.

The main menu contains the following items: Wireless transmission Measurement Settings Meter Settings Language selection Information about manufacturer
Use , and , buttons to select desired position. Enter a selected option by pressing ENTER.
2.1 Wireless transmission
See sections 5.3 to 5.5.

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2.2 Measurement settings
The option of Measurement settings consists of: Mains frequency Times t1, t2, t3 for calculating absorption coefficients Absorption coefficients Ab1, Ab2 or DAR PI Short-circuit current IISO Setting limit values Temperature unit Cell autoincrementing Filter ­ restricting RISO display Chart type selection
Use , and , buttons to select desired position. Enter a selected option by pressing ENTER.
2.2.1 Mains frequency
Only the measurement with a properly selected mains frequency will ensure optimum filtration of interferences. The meter is designed for filtration of interferences generated by 50 Hz and 60 Hz networks.

Use , to select the mains frequency. Confirm your choice by pressing ENTER button.

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2.2.2 Times t1, t2, t3 for calculating absorption coefficients
Use , buttons to scroll between times and press , buttons to set time values. Confirm your choice by pressing ENTER button. Selection range: (1 s…600 s), t2 (1 s … 600 s, but >t1), t3 (1 s…600 s, but >t2).
2.2.3 Type of absorption coefficients

Use , buttons to select the type of coefficients: Ab or DAR PI. Confirm your choice by pressing ENTER button.

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2.2.4 IISO short-circuit current

2.2.5 Setting limit values

Use , buttons to select the current value. Confirm your choice by pressing ENTER button.

Use , buttons to switch on/off limit values. Confirm your choice by pressing ENTER button.

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2.2.6 Temperature unit
Use , to select the temperature unit. Confirm your choice by pressing ENTER button.
2.2.7 Auto-incrementing of the memory cell number
Use , to switch on/off the function of Auto-incrementing of the memory cell number. Confirm your choice by pressing ENTER button.

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2.2.8 Filter
The meter is equipped with advanced digital filters for result stabilisation in difficult and unstable measurement conditions. The meter displays a filtered value of measurements for a specified time period, which may be 10 s, 30 s, 60 s, 100 s, 200 s or, after selecting the SMART option, enables the filter which effectively eliminates interference and at the same time quickly determines the result.

Use , to select a time period or to switch off the filter. Confirm your choice by pressing ENTER button.

Note:
100 s, 200 s and SMART filters are supported only in meters with specific serial number prefixes. Details in the table below.

Meter name
MIC-5050 MIC-10k1

100 s / 200 s / SMART filter 100 s / 200 s / SMART filter

supported

not supported

Serial number prefix

KI

EO

JN, KH

EN

2.2.9 Chart type selection
To illustrate the measurement results on the chart, you may select current and resistance (R, I) or voltage and resistance (R, U).

Use , buttons to select the values to be displayed on the chart. Confirm your choice by pressing ENTER button.

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2.3 Meter settings
The option of Meter Settings consists of: LCD contrast Automatic shut-off Date and time Factory (default) settings Program update Button tones Wireless communication

2.3.1 LCD contrast

Use , and , buttons to select desired position. Enter a selected option by pressing ENTER.

Select contrast value using , and ,
buttons; confirm your choice by pressing ENTER.

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2.3.2 Automatic shut-off (Auto-OFF)
The setting defines the shut-off time of idle meter.

2.3.3 Date and time

Use , buttons to set Auto-OFF time; confirm your choice by pressing ENTER.

Use , buttons to select the value to be changed (day, month, year, hour, minute). Set
a required value using , buttons. When required settings are made, press ENTER .

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2.3.4 Factory (default) settings
In order to introduce factory (default) settings, highlight YES using , buttons and press ENTER .
Note: Alternatively, press and hold the ON/OFF button for more than 5 seconds.
2.3.5 Software update
ATTENTION! Before programming, charge the battery. During programming the meter must not be switched off as well as the transmission cable must not be disconnected.
1. Before updating the program, download necessary data to a preferred data carrier, because during the updating process all data will be lost.
2. From the manufacturer’s website download the meter programming software, unzip the file and install the program on your computer.
3. Run the program and follow the displayed instructions: – select Software update in MENU of the meter – connect the meter to your PC.
4. After displaying the following screen, click Search button,

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wait until the program finds the meter and click Start. 5. After completing the update, disconnect the meter from the computer and click Close button.

2.3.6 Key sounds

Use , buttons to switch on/off key sounds. Confirm your choice by pressing ENTER button.

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2.3.7 Wireless communication

2.4 Language selection

Use , buttons to switch on/off wireless communication. Confirm your choice by pressing ENTER button.

Use , buttons to select desired language and press ENTER.
2.5 Information about manufacturer

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Notes:

3 Measurements

The result of the latest measurement is remembered by the meter until the next measurement is started or the measuring function is changed by means of the rotary switch. The result of the latest measurement is displayed on the screen for 20 seconds. Then it may be recalled by pressing ENTER, also after the meter is turned off and turned back on again.

Note: If a message shown below appears:
Meter temperature is too high! Measurement impossible!
turn the meter off and put it in a place that guarantees cooling.

WARNING: During a measurement, switching of the range switch is forbidden because it may damage the meter and pose a threat to the user.
3.1 Diagnostics performed by the meter ­ limits
The meter is able to assess whether the measurement result is within acceptable limits. The user may set a limit, i.e. maximum or minimum value, which should not be exceeded by the result. For measurements of insulation resistance, the set limit is the minimum value, whereas for measurements of continuity of protective conductors and equipotential bonding- it is the maximum value.
The limits are activated globally in the main menu (Section 2.1.5). When the function of setting limits is activated, the display, in its lower left corner, shows the symbols with the following meaning: – : the result is correct, it is within the set limits, – : the result is incorrect, it is outside the set limits,
The method for setting limits is described in the chapters describing the measurement data. In DD, SV functions and in after-burning ­ it is not possible to set limits.
3.2 Measurement of insulation resistance
WARNING: The tested object must not be live.

Note: During measurement, especially of high resistances, make sure that test leads do not touch each other and probes (crocodile clips), because such a contact may cause the flow of surface currents resulting in additional error in measurement results.
Inverter output current is limited at 1,2 mA, 3 mA or 6 mA level. Activation of the current limit is indicated by a continuous beep. The measurement result is correct, but on the test terminals the test voltage is lower than voltage selected before the measurement. The current limitation occurs in the first phase of the measurement due to charging the capacity of the tested object.

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The actual test voltage as a function of the measured insulation resistance RX (for maximum rated voltage)

3.2.1 Double-lead measurement

Set the rotary switch of function selection at

one of RISO positions, selecting simultaneously measuring voltage:

– for

at 50…10000V voltage is ad-

justed as follows: 50 V…1 kV in 10V steps,

1 kV…10 kV in 25V steps,

– for

at 50…5000V voltage is adjust-

ed as follows: 50 V…1 kV in 10V steps,

1 kV…5 kV in 25V steps.

The meter is in the mode of measuring inter-

ference voltage of the tested object UN.

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To change the measuring voltage, press F1

.

Use , buttons to set voltage value; confirm your choice by pressing ENTER.

To set the measurement time, press F3

.

To set the capacity of the tested object [nF/km] press F2 .

Use , buttons to set capacity value; confirm your choice by pressing ENTER. The range of changes: from 10 nF to 990 nF. When setting — (below 10 nF or above 990 nF) the function to calculate the length is switched off.

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In order to set the limit (minimum resistance), press F4 .
Use , and ENTER buttons to enter the resistance value.

Use , , , and ENTER buttons to select

the unit. Confirm by pressing F5

.

For RISO the limit is the minimum value. The range of setting the limit value is as follows:

–

from 1 k to 40 T,

–

from 1 k to 20 T.

The meter is ready for measurement. Value of interference voltage can be read on the display.

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Connect test leads according to the figure.

5 s

Press and hold the START button for 5 seconds. After 5 seconds, the measurement will be started and

continued until the programmed time is reached or

ESC button pressed.

Quick start, without 5 seconds delay, can be done by pressing the ENTER button and holding down the START button. The measurement will be stopped when the programmed time is reached or the ESC button pressed.

View of the screen during measurement.

Press F4

to display a chart of the measured

resistance and current as a function of time.

When the graph is displayed, press F4 turn to the tabular view of the results.
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After the measurement is completed, read the result.

Result presented as a graph. Dashed horizontal line shows the value of set lim-
it. Use , to move the cursor line (vertical dashed line) ­ the display will show data for the point the set RISO, IL and time.

Note:
During measurements of insulation resistance, dangerous voltage up to 10 kV (MIC-10k1) or 5 kV (MIC-5050) occurs at the ends of test leads of the meter.

It is forbidden to disconnect test leads before the measurement is completed. Failure to obey the above instruction will lead to high voltage electric shock and make it impossible to discharge the tested object.

– Disabling t2 will also disable t3.

– Measuring time tn is independent of the t1, t2, t3 times set in MENU and overwrites them i.e. when tn

< t3 then the measurement time will be equal to tn.

– Timer measuring the measurement time is started when UISO voltage is stabilized. – LIMIT I message means operation with limited inverter power. If this condition persists for 20 sec-

onds, the measurement is interrupted.

– If any of the measured values of partial resistance is out of range, the value of the absorption coeffi-

cient is not displayed ­ the display shows dashes.

– During the measurement yellow HV LED is lit.

– After completion of measurement, the capacitance of the object tested is discharged by shorting

RISO+ and RISO- terminals with resistance of

100 k or

200 kSimultaneously

the voltage of the tested object is displayed.

– Capacitance measurement is carried out only while the capacitance of the tested object is being di-

scharged. If the RISO measurement is interrupted before the RISO value stabilizes, the discharge will start too early, so the capacitance measurement result may not be correct.

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– In case of power cables measure the insulation resistance between each conductor and other conductors shorted and grounded (figure below).

– The length of the cable is calculated on the basis of its capacity on [km] written in before the measurement.

Additional information displayed by the meter

NOISE!
U>50V (U>1500V for AC) + two-tone
beep LIMIT I
HILE !

Test voltage is present on terminals of the meter.
Interference voltage lower than 50 V DC or 1500 V AC is present on the tested object. Measurement is possible but may be burdened with additional uncertainty.
The tested object is live. The measurement is blocked.
Activation of current limit. The symbol displayed is accompanied by a continuous beep. Leakage current too high (breakdown of insulation during the measurement.)

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3.2.2 Three-lead measurement
In order to eliminate the influence of surface resistance in transformers, cables, etc. the threelead measurement is used, but do not connect the current measuring test lead RISO- to large ground conductors. For example: at the measurement of inter-winding resistance of a transformer, G socket of the meter should
be connected to the transformer tank;
when measuring the insulation resistance between one of the windings and the transformer’s tank, connect G socket of the meter to the second winding:

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when measuring insulation resistance between one of the cable conductors and the cable jacket, the effect of surface resistances (important in difficult weather conditions) is eliminated by connecting a piece of metal foil insulating the tested conductor with G socket of the meter;
The same shall apply when measuring the resistance between two conductors of the cable, attaching to G terminal other conductors that do not take part in the measurement. at the measurement of insulation resistance of a high voltage circuit breaker, G socket of the
meter should be connected to the terminals’ insulators of the breaker;

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3.2.3 Measurements with AutoISO-5000

Connect AutoISO-5000 adapter. The meter detects this fact automatically and changes the appearance of the screen.

Use F1

, F2

and

F3

buttons to adjust de-

sired test voltage, capacity of the

object and measurement time, simi-

larly as in section 3.2.2

Press F4

button to

enter the selection of lead/

cable type (3-, 4- or 5-wire

lead).

Use , buttons to select an appropriate item and confirm it by ENTER.
Use , buttons, to enter the second group of parameters.

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Press F4

to set the

minimal resistance. It is the

same for all conductor pairs of a

cable.

Use , and ENTER buttons to enter the resistance value.

Use , , , and ENTER buttons to select the

unit. Confirm by pressing F5

.

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The meter is ready for measurement. Value of interference voltage can be read on the display.
Measurement Connect AutoISO-5000 adapter to the tested cable.

Press START to start measurement. First, checking of voltages on particular pairs of wires is performed. If any of the voltages exceeds allowable voltage, symbol of this voltage is displayed with “!” (e.g. UN-PE!), and the measurement is interrupted.
View of the screen during measurement.

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After the measurement is completed, read the results.

Use F1

and F2

displayed results.

buttons to change the group of

Note:
– Remarks and messages are the same as in 3.2.3.

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3.2.4 Measurements with increasing voltage ­ SV

In this mode the meter performs a series of 5 measurements with increasing voltage; the voltage

change depends on the set maximum voltage:

1 kV: 200 V, 400 V, 600 V, 800 V, 1000 V,

2.5 kV: 500 V, 1 kV, 1.5 kV, 2 kV, 2.5 kV,

5 kV: 1 kV, 2 kV, 3 kV, 4 kV, 5 kV,

10 kV: 2 kV, 4 kV, 6 kV, 8 kV, 10 kV.

The end result for each of the 5 measurements is saved which is signalled by a beep and an

appropriate icon.

Set the rotary switch of function selection in the SV position. The meter is in the voltage measurement mode.

Use F1

, F2

and

F3

buttons to adjust de-

sired test voltage, capacity of the object and measurement time, similarly as in section 3.2.2

5 s

Press and hold the START button for 5 seconds.

After 5 seconds, the measurement will be started and

continued until the programmed time is reached or

ESC button pressed.

Quick start, without 5 seconds delay, can be done by pressing the ENTER button and holding down the START button. The measurement will be stopped when the programmed time is reached or the ESC button pressed.

After the measurement is completed, read the result.

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Use F4

, F5

buttons to switch between con-

secutive measurements for a given sequence from 1 to 5.

Press F1

to display a chart of the measured resistance

and current as a function of time.

Note:
– Other comments and displayed symbols are the same as for standard RISO measurement. – In this function, it is also possible to perform the measurement with AutoISO-5000 adapter. The display of results is similar to the measurement of RISO with AutoISO-5000. The screen will show the following:

– For the measurement with the AutoISO-5000 adapter, it is not possible to plot the graph during the measurement.
3.2.5 Dielectric Discharge Indicator ­ DD
In the dielectric discharge test the discharge current is measured after 60 seconds from the end of measurement (charging) of the insulation. The DD is a value characterising the insulation quality independent from the test voltage.
The measurement operates in the following way: first the insulation is charged with a current for a set period. If this voltage is not equal to the set voltage the object is not charged and the meter abandons the measurement procedure after 20 seconds. After the charging and polarisation is complete, the only current flowing through the insulation is the leakage current. Then the insulation is discharged and the total dielectric discharge current starts to flow through the insulation. Initially this current is the sum of the capacity discharge current, which fades quickly and the absorption current. The leakage current is negligible, because there is no test voltage.
After 1 minute from closing the circuit the current is measured. The DD value is calculated using the formula:
DD I1min U pr C
where: I1min ­ current measured 1 minute after closing the circuit [nA], Upr ­ test voltage [V], C ­ capacitance [F].

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Set the rotary switch of function selection at DD. The meter is in the voltage measurement mode.

Use F1

, F2

and

F3

buttons to adjust de-

sired test voltage, capacity of the

object and measurement time (1

min …60 min), similarly as in sec-

tion 3.2.2

or

Start the measurement, similarly as in section 3.2.4.

Both during and after the measure-

ment, the user may switch between

the display of the results and the

graph by pressing F4

.

After the measurement is completed, read the result.

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MIC-10k1 MIC-5050 ­ USER MANUAL

Press F4

to display a chart of the measured resistance

and current as a function of time.

The cursor (i.e. dashed vertical line) may be
moved by using , buttons. Measured values are displayed for the point where the cursor is currently positioned. The measurement result indicates the status of the insulation, it may be compared with the following table:

DD value >7 4-7 2-4 <2

Insulation condition Bad Weak
Not the best OK

Note:

– in an environment with strong interferences the measurement may be affected by additional uncertainty. – In this function, it is also possible to perform the measurement with AutoISO-5000 adapter. The display of results is similar to the measurement of RISO with AutoISO-5000. The screen will show the following:

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3.2.6 Damage location (after-burning)
The meter carries out the measurement as for RISO, except that it is not interrupted at the breakdown. In case of a breakdown, the measurement is continued, and the damage may be located as indicated by breakdown sound.
Set the rotary switch of function selection at . The meter is in the voltage measure-
ment mode.

Use F1

, F2

and

F3

buttons to adjust de-

sired test voltage, capacity of the object and measurement time, similarly as in section 3.2.2

or

Start the measurement, similarly as in section 3.2.2.

View of the screen during meas-

urement. Both during and after

the measurement, the user may

switch between the display of the

results and the graph by pressing

F4

.

When the insulation breakdown occurs, the meter does not interrupt the measurement (as in other functions) and the display shows (at the top) the corresponding mnemonic.

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MIC-10k1 MIC-5050 ­ USER MANUAL

After the measurement is completed, read the result. The display shown after the measurement with insulation breakdown.

Press F4

to display a chart of the measured resistance

and current as a function of time.

3.3 Low-voltage measurement of resistance
Note:
Low-voltage measurement of resistance (RCONT) is supported only in meters with specific serial number prefixes. Details in the table below.

Meter name
MIC-5050 MIC-10k1

RCONT supported

RCONT not supported

Serial number prefix

B3

EO

B4

EN

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3.3.1 Measurement of resistance of protective conductors and equipotential bonding with ±200 mA current
Set the rotary switch at the RCONT position.
The meter is ready for measurement. Press F4 to set the maximum resistance.

The setting limit reflects the function: from 0.01 to 999 . The value of the limit set in the same way as for RISO.
Connect the meter to the tested object. Trigger the measurement by pressing the START button.

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MIC-10k1 MIC-5050 ­ USER MANUAL

Read out the result.

Additional information displayed by the meter

NOISE!
Voltage on object Un>10 V + two-tone, continuous beep + and LED lit in red

Interference voltage occurs on the tested object. The measurement is possible however it will be burdened with additional uncertainty that is specified in the technical data.
Interference voltage exceeds the allowable value, the measurement is blocked.

3.3.2 Calibration of test leads

In order to eliminate the impact of the resistance of test leads on measurement result, the compensation (autozeroing) of resistance may be performed.

Press F1

.

Follow the instructions displayed on the screen.

Press START.

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AUTOZERO message appears, confirming that the test leads’ calibration has been performed, and the meter enters the measurement mode. AUTOZERO message remains visible during measurements. The compensation is active even after the meter is switched off and on again.
In order to remove the calibration made (return to default calibration), perform the above-mentioned activities with test leads open.
3.4 Correcting the RISO value to the reference temperature
The meter has the ability to convert the RISO measurement value to resistance values at reference temperatures acc. to ANSI/NETA ATS-2009 standard. To obtain such results, the user has to:
– enter the temperature value manually or – connect the ST-1 temperature probe to the instrument. Then additional measurement readings will appear.
RK20-O ­ RISO converted to a value at 20ºC for oil insulation (applies i.e. to insulation in cables).
RK20-S ­ RISO converted to a value at 20ºC for solid insulation (applies i.e. to insulation in cables).
RK40-O ­ RISO converted to a value at 40ºC for oil insulation (applies i.e. to insulation in rotating machinery).
RK40-S ­ RISO converted to a value at 40ºC for solid insulation (applies i.e. to insulation in rotating machinery).

In order to set the temperature manually, press F1

F5

and then enter the

value as in sec. 3.2.1 step . On the other hand, after connecting the ST-1 probe the measured

value will be displayed in the temperature field.

Temperature measurement commences after connecting the ST-1 temperature probe and it is

performed for each function. Values are refreshed every second. After disconnecting the probe, the

manually set temperature is displayed again.

To ensure user safety, it is not allowed to mount ST-1 temperature probe on objects with voltage higher than 50 V to earth. It is advisable to ground the examined object before mounting the probe.

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3.5 Determining the length of the tested cable
Based on the electrical capacity of the tested object, the device enables the user to determine the length of the tested cable. For this purpose ­ before starting the measurement ­ it is necessary to obtain data on the object’s parameters (e.g. from the manufacturer’s catalogue sheet).
Each cable is marked at 1-metre intervals with the following data: name of the manufacturer, cable type, rated voltage, number of conductors and cross-
section of each of them.
For example, the photograph shows a cable of YHAKXS 1×240 RMC/50 12/20 kV type.
Find this cable in the catalogue sheet of its manufacturer. The parameter you search for is unit capacity.
Its value should be converted to nanofarads per kilometre (nF/km) ­ the value is entered into the meter in field CX.
In this case the obtained value is 0.3 µF/km = 300 nF/km.
Now you can configure the meter. Use F2 button to select CX.

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Use buttons

to set the capacity val-

ue. Range of changes: 10…990 nF. When

setting — (below 10 nF or above 990 nF)

the function to calculate the length is

switched off.

Press ENTER to confirm the selection.

Start the measurement.

/5 s

The device measures the total capacity of the cable C [nF]. Using this value and when the unit capacity CX [nF/km] is entered, it may calculate the length L.

C CX L

L C CX

In this case, for: C = 68.1 nF CX = 300 nF/km the cable length is:

L C CX

68.1nF 300 nF

0.227 km 227 m

km

3.6 Tightness test of MV cable jacket
Tightness test of MV cable jacket consists of applying a test voltage between its metal sheath or its return conductor and the ground. During the measurement, pay attention to the value of IL current.
The test voltage and the measurement time depend on the type of the tested object and test guidelines. For example, for a cable with polyethylene insulation:
test voltage according to standard HD 620 S1:
5 kV,
measurement time after voltage stabilization:
1-10 min,
positive result according to HD 620 S1: when
no ground fault has occurred.

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4 Memory of measurement results

4.1 Structure of the Memory
The memory for test results has a tree-like structure (see figure below). The user has the ability to record data for ten clients. Each client may create max. 999 objects, which may store up to three levels of sub-objects, 999 sub- objects for each level. Each subject, and sub-object may store up to 999 measurements.
The whole structure is limited by the size of memory. The memory allows for simultaneous recording of 10 full descriptions of customers, and a minimum of: measurement sets for 10000 measuring points and 10000 names of these points, 999 names for objects, 999 descriptions of sub-objects and remember the layout created for these objects. Additionally the memory has a space for the list of names (selection lists) extended up to 99 entries.
4.1.1 The appearance of main windows in the measurement recording mode
The main folder window

Bar with a client name / bar for menu location

Free memory available:
all internal lines visible ­ 100%, no internal line visible ­ 0%

Object icon

Bold borders indicate location of the cursor
Hint bar

Sub-object icon
Bar for the name of object and sub-object and (when the cursor is on the client) client address (if entered)

Connectors indicating the ability to move between the icons

Marking of function buttons

Successive number / total number of objects

Object without any sub-object Object symbol

Symbol of the measuring point and the number of such points (for this object)
An object containing at least one sub-object Object symbol on a grey background

Connector

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41

Sub-object without further sub-objects

Successive number / total number of sub-objects in one level

Sub-object symbol

Symbol of the measuring point and the number of such points (for this sub- object)

Sub-object containing more sub-objects
Sub-object symbol on a grey background

Connector (appears when the cursor is over the icon.)
Client edit window

Active field

Data fields

Information on the name entering mode

Window for entering a name

Entry field On-screen keyboard

To obtain larger fonts set the cursor on Shift and press ENTER. To obtain special (Polish) fonts set the cursor on ALT and press ENTER.
Window for entering the measurement result

Successive number / total number of saved cells

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Note:
– Results of measurements performed for all measuring functions can be stored in one memory cell. – Only the results of the measurements started by pressing START key button can be stored in the memory (except autozeroing in low- voltage measurement of resistance). – Complete set of results (main result and supplementary results) for a given measuring function, preset measurement settings, date and time of the measurement are stored in the memory. – Cells unsaved are not available. – It is recommended to delete the memory after reading the data or before performing a new series of measurements that may be stored into the same memory cells as the previous ones. – A single cell may contain either a RISO 2(3)p measurement result, a RISO SV, or DD. – After entering the measurement result, the ID number of the cell is automatically increased.
4.2 Storing the measurement results in the memory
Press ENTER after finishing the measurement.
4.2.1 Entering the results without extending the memory structure
Press ENTER again.
The cell is free for a given type of measurement.

The cell is occupied for a given type of measurement.

Use F4

, F5

of the result.

buttons to scroll the components

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In order to select a measurement point (cell), use , .

or

press ENTER, to save the result in the memory or ESC, to return to displaying the memory structure.

If you try to store data in an occupied memory cell, the following warning message will appear:

or

After selecting YES press ENTER to overwrite the result or ESC, to cancel.

Note:
– Complete set of results (main result and supplementary results) for a given measuring function and preset measurement settings are stored in the memory.
4.2.2 Extending the memory structure

Press ESC to start creating the objects.

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MIC-10k1 MIC-5050 ­ USER MANUAL

Press button to set the cursor on Client 1.

Use , buttons to select other clients (1 ­ 10).

Press F1

to edit client data.

Use , editing.

buttons to set the cursor on each item and press ENTER to start the

Use , and , ENTER to enter it.

buttons to select a character to be typed, and press

Press F4

to delete typed letters.

Press F5

to confirm data and return to the screen of step .

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In this way, you may enter all client data.

Press F5

to confirm data and return to the screen of step .

Use button to set the cursor on the object icon. Press F1 ing the object name.

to start edit-

Enter the name of the object in the same way as for the customer data. You may

use the list of proposed names that is available after pressing F1

. First the

list should be created.

After pressing F1 and pressing F2

you may add further names to the list (up to 99 items), deletes the items.

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MIC-10k1 MIC-5050 ­ USER MANUAL

Press F5

to approve the name that appears on the screen.

Press ENTER, go to the measurement point.

Press F1

to enter the editing of the measuring point name.

Enter the name of the measuring point in the same way as the object name. press ENTER, to save the measurement result.

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After entering the memory, the user may extend its structure by adding new objects and subobjects as needed.

To add a new object, press F5

.

To add a new sub-object, set the cursor on the chosen object and press F4 .

Using F4 and F5 you may add new objects and sub-objects (up to 5 levels).

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MIC-10k1 MIC-5050 ­ USER MANUAL

Note:
– New objects (sub-objects in a level) are added on the right side of the object marked with the cursor (sub-object). – The screen displays only sub- objects belonging to the object (sub-object) indicated by the cursor. – Deleting objects and sub-objects is possible only in memory browse mode. – The name of an object, sub-object or measurement is possible in memory browse mode or after entering entry into the memory after a measurement.
4.3 Viewing memory data
Set the rotary switch of function selection at MEM position.

Use , buttons to select “MEMORY BROWSE AND EDIT”.
Press ENTER button.
Last saved measurement in sub-object 3, Level 1

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Use , and , buttons to move between objects and sub-objects us-

ing the existing connectors.

Press F1

to enter the option for editing the name of object (sub-

object) and change it. Press F2

to delete a chosen object (sub-object)

with all its results.

When the cursor is set on “Client”, use , buttons to move to next clients.

After selecting desired object (sub-object) press ENTER.
The number of measuring point / number of all measuring points.
The number of measurement type / number of all measurements types at that point.

Use , buttons to change the measurement point.

Press F1

to enter the editing of the measuring point name and to

change it.

Press F4

or F5

to display all individual types of results for a

given point.

Press F2

to delete a chosen measurement or measuring point with all

its results:

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4.4 Deleting memory data
Set the rotary switch of function selection at MEM position.

Use , buttons to select “MEMORY ERASING”. Press ENTER button.

Use , buttons to select YES or NO. Press ENTER button.

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5 Data transmission Note:
– Data transmission is not possible while charging the battery.
5.1 Set of accessories to connect the meter to a PC
In order to ensure the communication of the meter with a PC, a USB cable is required or Bluetooth module and appropriate software supplied with the meter.
The software may be used for many devices manufactured by SONEL S.A. which are equipped with the USB interface.
Detailed information is available from the manufacturer and distributors.
5.2 Data transmission through USB port
Set the rotary switch of function selection at MEM position.

Use , buttons to select “TRANSFERING DATA TO EXTERNAL MEMORY”.
Press ENTER button.
Connect the meter with PC or a USB flash drive using USB cable. Start the programme.

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5.3 Data transmission using Bluetooth module
1. Activate Bluetooth on your PC (if it is an external module, it must be connected to the computer before). Follow the instructions of the module. 2. Turn on the meter and set the function switch in MEM. 3. On a PC enter Bluetooth connectivity mode, select the device (MIC-10k1 / MIC-5050) and establish the connection. 4. If the connection was successful, then the meter will display the following screen:
5. Start the software to read /save data (e.g., Sonel Reader, Sonel PE) and proceed in accordance with its instructions.
5.4 Read-out and change of PIN code for Bluetooth connections
Select Wireless transmission in the main MENU of the meter,
press ENTER. Select CHANGE PIN CODE position,

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press ENTER. Read the current PIN, and change it if necessary, confirming introduced change by pressing ENTER.

Note:

Standard PIN code for Bluetooth transmission is “123”.

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6 Power supply of the meter 6.1 Monitoring the power supply voltage
ATTENTION! To display the correct battery discharge status, it is necessary to completely discharge and then fully charge the battery, before starting the regular use of the meter.
The charge level of the rechargeable battery is indicated by the symbol in the right upper corner of the display on a current basis:
Battery charged. Battery discharged. Battery completely discharged.
Battery extremely discharged, all measurements are blocked.
6.2 Battery power
MIC-10k1 and MIC-5050 meters are powered with a Li-Ion battery which may be replaced only in a servicing point.
NOTE: In MIC-10k1 up to SN: B40364 and MIC-5050 up to SN: B30117 gel batteries are used.
The charger is installed inside the meter and works only with the manufacturer’s rechargeable battery pack. The charger is powered from the 230 V grid. It is also possible to power the unit from a car lighter using an optional 12 V / 230 VAC converter.
ATTENTION! Do not power the meter from sources other than those listed in this manual.

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6.3 Charging rechargeable battery
Charging commences once the power supply has been connected to the meter regardless of the fact whether the meter is on or off. Charging is indicated by battery symbol being filled and flashing green LED. The rechargeable battery is charged in accordance with the “quick charge” algorithm ­ this process reduces the charging time to approx. 7 hours. The completion of the charging cycle is indicated by a full battery symbol and the lighting of green LED. In order to turn the device off, unplug the power charger.

Note:

– Due to interferences in the mains, the process of battery charging may finish prematurely. When charging time is too short, turn off the meter and start charging again.

Additional information displayed by the meter

Signalling Green LED is flashing (once per second), display shows the battery symbol being filled. Green LED is lit continuously, display shows the full battery symbol. Green LED is flashing (twice per second) Green LED is flashing along with the battery
symbol (twice per second), simultaneously is displayed.

Condition
Charging in progress.
Charging finished.
Charging error. Battery temperature is too high, the measurements are blocked.

6.4 Power supply from mains

It is possible to carry out measurements during the charging process. To activate it, press ESC ­ the meter enters the measurement mode, while remaining in charging mode. Similarly, the process
takes place when AC power supply is connected to the meter.

When the meter is turned off by rupted.

button or by Auto-OFF, the charging process is not inter-

Additional information displayed by the meter

Signalling All segments of the battery are flashing once per second. Green LED is flashing along with the battery

symbol (twice per second), simultaneously

and

are displayed.

Condition Charging finished.
Battery temperature is too high.

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6.5 General principles for using Li-Ion rechargeable batteries
– Store the half-charged battery pack in a plastic container placed in a dry, cool and well ventilated place and protect them from direct sunlight. The battery pack may be damaged if stored when fully discharged. The ambient temperature for prolonged storage should be maintained within the range of 5°C…25°C. – Charge the batteries in a cool, well-ventilated place at a temperature of 10°C … 28°C. Modern fast chargers detect both too low and too high temperature of rechargeable batteries and react to the situation adequately. Too low temperature should prevent starting the process of charging, which might irreparably damage rechargeable batteries. The increase in temperature of the battery pack may cause electrolyte leakage and even its ignition or explosion. – Do not exceed the charging current, as it may result in ignition or “swelling” of the battery pack. “Swollen” battery pack must not be used. – Do not charge or use the batteries in extreme temperatures. Extreme temperatures reduce the lifetime of rechargeable batteries. Always observe the rated operating temperature. Do not dispose the battery pack into fire. – Li- Ion cells are sensitive to mechanical damage. This kind of damage may cause its permanent damage and thus ­ ignition or explosion. Any interference in the structure of Li-ion battery pack may cause its damage. This may result in the ignition or explosion. A short-circuit of the battery poles “+” and “-” may permanently damage the battery pack or even cause its fire or explosion. – Do not immerse Li-Ion battery in liquids and do not store in humid conditions. – If the electrolyte contained in the Lithium-Ion battery pack, contacts eyes or skin, immediately rinse the affected place with plenty of water and consult a doctor. Protect the battery against unauthorised persons and children. – When you notice any changes in the Lithium-Ion battery pack (e.g. changes in colour, swelling, excessive temperature), stop using the battery pack. Li-Ion batteries that are mechanically damaged, overcharged or excessively discharged are not suitable for use. – Any misuse of the battery may cause its permanent damage. This may result in the ignition. The seller and the manufacturer shall not be liable for any damages resulting from improper handling Li-Ion battery pack.
6.6 General principles for using gel (lead) rechargeable batteries
– Store the rechargeable batteries in a dry, cool and well ventilated place and protect them from direct sunlight. Do not install them in a tightly closed container. While charging the batteries may produce flammable gases, which may be the cause of explosion if proper ventilation is not available. The best temperature for battery storage and operation is between 15°C and 25°C. – Do not place batteries near equipment generating sparks, or store them in dusty areas. – Do not connect the battery to any plastic elements or housing elements containing solvents. This may cause the battery body to unseal or crack. – During storage of lead batteries they are self-discharged. The storage time without charging is dependent on ambient temperature: from 6 months at 20 °C to 2 months at 40 °C. In order to prevent excessive battery discharge, resulting in a significant reduction of their capacity and durability it is required to recharge them in specified intervals. – Do not discharge the battery to a voltage below that, specified by its manufacturer. An attempt to recharge an over-discharged battery may cause a thermal hazard, which results in battery deformation or in change of the structure and distribution of the electrolyte in the battery as some of the water evaporates. This worsens the battery parameters similar to prolonged overcharging. Always recharge the battery immediately after discharging, even if it was not discharged to the recommended cut off voltage. Leaving a discharged battery for a couple of hours (sometimes even less than that if the discharge was very deep) will cause sulphating. – Charging may only be performed using a charger with specific parameters and under the conditions set by their manufacturers. Failure to meet these conditions can lead to leakage, overheating or even an explosion.

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7 Cleaning and maintenance
ATTENTION! Use only the maintenance methods specified by the manufacturer in this manual.
The casing of the meter may be cleaned with a soft, damp cloth using all- purpose detergents. Do not use any solvents or cleaning agents which might scratch the casing (powders, pastes, etc.).
Clean the probe with water and dry it. Before the probe is stored for a prolonged period of time it is recommended to grease it with any machine lubricant.
The reels and test leads should be cleaned with water and detergents, and then dried. The electronic system of the meter does not require maintenance.
8 Storage
In the case of storage of the device, the following recommendations must be observed: Disconnect all the test leads from the meter. Clean the meter and all its accessories thoroughly. Wind the long test leads onto the reels. If meter is to be stored for a prolonged period of time, the batteries must be removed from the de-
vice. In order to prevent a total discharge of the accumulators in the case of a prolonged storage,
charge them from time to time.
9 Dismantling and utilisation
Worn-out electric and electronic equipment should be gathered selectively, i.e. it must not be placed with waste of another kind.
Worn-out electronic equipment should be sent to a collection point in accordance with the law of waste electrical and electronic equipment.
Before the equipment is sent to a collection point, do not dismantle any elements. Observe local regulations concerning disposal of packages, waste batteries and accumulators.

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10 Technical specifications

10.1 Basic data
The abbreviation “m.v.” used in the specification of accuracy denotes a standard measured value

AC/DC voltage measurement
Display range 0.0 V…29.9 V 30.0 V…299.9 V 300 V…1500 V Frequency range: 45…65 Hz

Resolution 0.1 V 0.1 V 1 V

Accuracy (2 % m.v. + 20 digits) (2 % m.v. + 6 digits) (2 % m.v. + 2 digits)

Measurement of insulation resistance
Test voltage accuracy (Robc [] 1000*UN [V]): +10% of the set value Measurement range acc. to IEC 61557-2:
UN = 5000 V: 5.00 M…20.0 T, UN = 10000 V: 10.0 M…40.0T

Measurement with DC and increasing voltage (SV) for UISO = 5 kV

Display range

Resolution

000 k…999 k

1 k

1.00 M…9.99 M

0.01 M

10.0 M…99.9 M

0.1 M

100 M..999 M

1 M

1.00 G..9.99 G

0.01 G

10.0 G…99.9 G

0.1 G

100 G…999 G

1 G

1.00 T…9.99 T 10.0 T…20.0 T 10.0 T…40.0 T for at UN = 10 kV

0.01 T 0.1 T

Accuracy
(3 % m.v. + 10 digits)
(3.5 % m.v. + 10 digits) (7.5 % m.v. + 10 digits) (12.5 % m.v. + 10 digits)

The accuracies shown above are the “worst” values calculated for the top range values. The lower the reading, the higher the accuracy.
Accuracy for any measuring voltage and each result can be calculated from the following formula:
R= ±(3 %+(UISO/( UISO-Rzm·21·10-12)-1) ·100 %) ± 10 digits where:
UISO ­ voltage at which the measurement is conducted [V] Rzm ­ measured resistance []

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Approximate maximum values of the measured resistance, depending on the test voltage, are presented in the table below.

Voltage
50 V 100 V 250 V 500 V 1000 V 2500 V 5000 V 10000 V

Test range
200 G 400 G 1.00 T 2.00 T 4.00 T 10.0 T 20.0 T 40.0 T

Measuring range for AutoISO-5000
20.0 G 40.0 G 100 G 200 G 400 G 400 G 400 G

Note: For insulation resistance below RISOmin there is no accuracy specified because the meter works with the adjustable current limit in accordance with the following formula:

R U ISO min

ISOnom

IISOnom

where:

RISOmin UISOnom IISOnom

– minimum insulation resistance measured without limiting the converter current – nominal test voltage ­ nominal converter current (1.2 mA, 3 mA or 6 mA)

Additional error in the three-lead measurement (impact of G terminal): 0.05% with reduced current leakage incurred by 250 k resistance during 100 M measurement with 50 V measurement voltage.
Max. short-circuit current IISO: 6 mA ±15 % The IISO current in the remaining load range shall be selected from the following values: 1.2 mA,
3 mA, 6 mA.

Measurement with AutoISO-5000 Display range
000 k…999 k 1.00 M…9.99 M 10.0 M…99.9 M 100 M…999 M 1.00 G…9.99 G 10.0 G…99.9 G 100 G…up to the value at which the additional error of AutoISO-5000
is 5%

Resolution 1 k
0.01 M 0.1 M 1 M 0.01 G 0.1 G
1 G

Accuracy
±(3 % m.v. + 10 digits ) of the meter ± 1 % additional
error of AutoISO-5000
±(3 % m.v. + 10 digits ) of the meter ± 5 % additional
error of AutoISO-5000

Measurement of leakage current

Display range
0.01 nA … 9.99 nA 10.0 nA … 99.9 nA 100 nA … 999 nA 1.00 uA … 9.99 uA 10.0 uA … 99.9 uA 100 uA … 999 uA 1.00 mA … 9.99 mA

Resolution
0.01 nA 0.1 nA 1 nA 0.01 uA 0.1 uA 1 uA 0.01 mA

Accuracy (1.5% m.v. + 2 digits)

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Measurement of capacitance

Display range

Resolution

Accuracy

0 nF…999 nF 1.00 µF…49.99 µF

1 nF 0.01 µF

(5% m.v. + 5 digits)

Measurement of capacitance is available only during RISO measurement (when discharging the object).

Accuracy of measurement is met for the tested capacitance connected in parallel with a resistance greater than 10 M.

For measurement voltages below 100 V the measurement error is not specified.

The cable lenght L is calculated as C/Cx, measurement accuracy depends on measurement range.

Time Constant TC is calculated as Riso x C, measurement accuracy depends on measure-

ment range.

Measurement of continuity of protective conductors and equipotential bonding with 200 mA current

Measuring range according to IEC 61557-4: 0.12 …999

Display range

Resolution

Accuracy

0.00 …19.99 20.0 …199.9

0.01 0.1

±(2 % m.v. + 3 digits)

200 …999

1

±(4 % m.v. + 3 digits)

Voltage at open terminals: 4 V…24 V

Output current at R<15 : min. 200 mA (I = 200 mA…250 mA)

Current flowing bidirectionally, average resistance is displayed on the screen,

Compensation of test leads resistance, autozeroing.

Temperature Measurement
Display range -40.0…99.9 °C -40.0…211.8 °F

Resolution
0.1 °C 0.1 °F

Accuracy
±(3% m.v. + 8 digits) ±(3% m.v. + 16 digits)

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10.2 Other technical data
a) type of insulation acc. to EN 61010-1 and IEC 61557 ……………………………………………………double b) measurement category acc. to EN 61010-1 …………………………………………….. IV 600 V (III 1000 V) c) ingress protection acc. to EN 60529
open enclosure………………………………………………………………………………………………………..IP40 closed enclosure ……………………………………………………………………………………………………. IP67 d) power supply of the meter mains …………………………………………………………………………. 90 V ÷ 260 V 50 Hz/60 Hz, 200 VA MIC-5050 up to serial number B30117 …………………………………………. gel rechargeable battery 12 V MIC-5050 serial number prefix B3 (from B30118)…………..Li-Ion rechargeable battery 14.8 V 5.3 Ah MIC-5050 up to serial number prefix LZ …………………… LiFePO4 rechargeable battery 13.2 V 5.0 Ah MIC-10k1 up to serial number B40364………………………………………….. gel rechargeable battery 12 V MIC-10k1 serial number prefix EN ……………………………….Li-Ion rechargeable battery 14.8 V 5.3 Ah MIC-10k1 serial number prefix M1 …………………………. LiFePO4 rechargeable battery 13.2 V 5.0 Ah e) dimensions ………………………………………………………………………………………… 390 x 308 x 172 mm f) meter weight with gel battery ……………………………………………………………………………………………. approx. 7 kg with Li-Ion battery ………………………………………………………………………………………. approx. 5.6 kg with LiFePO4 battery ………………………………………………………………………………….. approx. 6.1 kg g) storage temperature …………………………………………………………………………………….. -25C…+70C h) operating temperature ………………………………………………………………………………….. -20C…+50C i) humidity………………………………………………………………………………………………………….. 20%…90% j) altitude (above sea level) ……………………………………………………………………………………… 3000 m k) reference temperature ……………………………………………………………………………………. +23C ± 2C l) reference humidity ……………………………………………………………………………………………. 40%…60% m) display ………………………………………………………………………………………………………. LCD, graphical n) number of RISO measurements, acc. to EN 61557-2 with battery power supply ……………..min. 1000 o) time of operation on a single battery charge MIC-5050 for RISO=5 M, UISO=5 kV, T=(23±5)°C ……………………………………………………….ca. 5 h MIC-10k1 for RISO=5 M, UISO=5 kV, T=(23±5)°C …………………………………………………….ca. 4.5 h p) memory of measurement results………………………………………….. 990 cells (10 000 records / 8 MB) q) quality standard ………………………………………………………………………………………………………………. …………….design, construction and manufacturing are ISO 9001, ISO 14001, ISO 45001 compliant r) the device meets the requirements of …………………………….EN 61010-1 and IEC 61557 standards s) the product meets EMC requirements (immunity for industrial environment) according to the following standards……………………………………………………………………EN 61326-1 and EN 61326-2-2
ATTENTION! MIC-10k1 and MIC-5050 meters are classified in terms of Electromagnetic Compatibility (EMC) as instruments of Class A (for use in industrial environments ­ according to EN 50011). Interferences, impacting the operation of other devices must be taken into account when the meters are used in other environments (e.g. domestic).
Note: SONEL S.A. hereby declares that the radio device type MIC-10k1/5050 complies with Directive 2014/53/EU. The full text of the EU Declaration of Conformity is available at the following website address: https://sonel.pl/en/download/declaration-of-conformity/

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10.3 Additional data

Data on additional uncertainties are useful mainly when the meter is used in non-standard conditions and for metrological laboratories for the purpose of calibration.

10.3.1 Additional uncertainties according to EN 61557-2 (RISO)

Significant parameter Position Supply voltage Temperature 0C…35°C

Designation
E1 E2 E3

Additional uncertainty 0 %
1 % ( BAT is not lit) 6 %

10.3.2 Additional uncertainties according to EN 61557-4 (RCONT)

Significant parameter
Position Supply voltage Temperature 0…35°C

Designation
E1 E2 E3

Additional uncertainty
0 % 0.2% (BAT is not lit)
1 %

11 Manufacturer
The manufacturer of the device and provider of guarantee and post-guarantee service:
SONEL S.A. Wokulskiego 11 58-100 widnica
Poland tel. +48 74 884 10 53 (Customer Service)
e-mail: customerservice@sonel.com web page: www.sonel.com
NOTE Service repairs must be performed solely by the manufacturer.

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NOTES

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MIC-10k1 MIC-5050 ­ USER MANUAL

References

• Sonel S.A.
• Sonel S.A.
• Sonel S.A.

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