Sefram MW9325 Multifunction Installation Pocket Tester User Manual

Sefram MW9325 Multifunction Installation Pocket Tester

Product Information and Usage Instructions

The product is a measuring device that can be used to measure voltage, current, and other electrical parameters. It has several testing modes such as DDR, Boucle, Harmoniques, and AUTO mode.

Product Usage Instructions

To test the outlet and measure the voltage, follow these steps:

1. Connect the device to the outlet.
2. Select the voltage measurement mode.
3. Read the voltage measurement on the device display.

DDR

The DDR mode has two testing modes: DDR x1 and DDR x5. To use DDR mode, follow these steps:

1. Select the DDR mode.
2. Select the testing mode (DDR x1 or DDR x5).
3. Follow the instructions on the device display to complete the test.

Boucle

The Boucle mode is used to measure the resistance of a loop. To use Boucle mode, follow these steps:

1. Select the Boucle mode.
2. Connect the device to the loop.
3. Follow the instructions on the device display to complete the test.

Harmoniques

The Harmoniques mode is used to measure the harmonic distortion of a signal. To use Harmoniques mode, follow these steps:

1. Select the Harmoniques mode.
2. Connect the device to the signal source.
3. Follow the instructions on the device display to complete the test.

AUTO mode

The AUTO mode includes 6 tests in the following order: ETAPE 1, ETAPE 2, ETAPE 3, ETAPE 4, ETAPE 5, and ETAPE 6. To use AUTO mode,
follow these steps:

1. Select the AUTO mode.
2. Follow the instructions on the device display to complete all 6 tests.

INTRODUCTION

Congratulation for purchase MW9325, the first multifunction tester in the shape of a socket tester.
It allows the test of electrical system according to the IEC standard as the common installation tester do. In addition to the TRMS Voltage measurement and the Socket Tester features allow Installation test to be performed from anyone (RCD, LOOP L-PE) in according to IEC61557-3 and IEC61557-6. Super bright color Display TFT 1,77”, with internal memory for store results. Super- Cap technology let the instruments turn on even when disconnected from the socket

SAFETY and WARNINGS
This product is manufactured following IEC/EN61010-1, guidelines for safety installation testers. Follow this user manual for avoid damage the instruments:

• Do not measure in high humidity or wet environment.
• Avoid measurement in highly flammable place.
• Avoid contact with the circuit under test if you are not measuring
• Avoid contact with metallic part that can be under voltage
•  If the instruments look broken or damaged, please avoid the use for measure.
• Maximum Voltage input is 265 V. Do not connect the instrument to higher voltage. Permanent damage to the instruments and electrical shock can occur if you don’t respect these guidelines.

GENERAL DESCRIPTION

MW9325 execute the following test:

1.  VOLT and Socket Test (Correct wiring of Plug)
2.  Voltage measurement L-N, TRMS
3. Residual Current (DDR) type A, AC and F also in AUTO mode with CONTACT VOLTAGE measurement
4.  Z LOOP (Global earth resistance in TT system and impedance L-Pe in TN with short circuit current)
5.  Short circuit current
6.  Voltage harmonics up to 49 th
7.  THD% (Total harmonics Distortion)
8.  Frequency of the fundamental Harmonics and up to 49 th

Function can be selected through the dedicated button. Sub function features can be selected through the arrow button for example for selecting the RCD type or evaluate different harmonics. The instruments are powered from the line and due to the SUPERCAP technology can keep the power even when disconnected from the line. Fully charged supercap allow 45 second after switching off from the line. This allow the user to read the value after the RCD is tripped out (with tripping time) or when is difficult to read the display value Outcomes are always GREEN when the measured value is correct in according the local regulations or RED when the test is not passed. For incorrect value the instruments also generate a sound alarm.

PRODUCT DESCRIPTION

1. Antiscratch glass
2. Display TFT 1,77″
3. Function
4. TEST
5. sub features selection
6. sub features selection
7. SCHUKO plug

Function button allow to select the measure. Display shows the following features: Socket Test / VOLT – RCD (DDR) – LOOP – Harmonics / Memory.
Arrow button ,allow to select sub parameters for test and read the memory or to analyze the harmonics value up to 49th. Red button can start the RCD test or LOOP Resistance (no trip RCD) or stop the Harmonics (as an Hold features)
The device is delivered with a 1-meter extension cord. This extension cord allows the display of the measurement to be shifted. It allows the reversal of the wiring of a socket in case the socket on which the measurement is carried out does not respect the conventional wiring (neutral on the left and phase on the right).

VOLTAGE AND SOCKET TEST

This feature measure Voltage between phase and neutral and test the socket wiring in according to local requirement.

Operation Plug the instruments in the socket and select Voltage function with button. Voltage between Phase and Neutral will be shown at display if socket is correctly wired and voltage contact is <50V error due to the incorrect wiring is shown. Green bar indicate every parameter is correct. Frequency and THD % of Voltage can be shown through button

Wiring Error (bar is Red)
Phase – Neutral Reverse Phase – Ground Reverse
Open Neutral
No Ground
Voltage contact >50V
Solution
Adjust the socket wiring Adjust the socket wiring Connect Neutral wire Check Earth connection Dangerous Voltage on mass

RCD (Residual Current Device) (DDR mode)

This feature allows test of RCD according to EC/EN 61557-6 with tripping time and Voltage contact. Test Current of 30 mA is injected through the ground for type A, AC and F.

Test Mode:

• x1 IΔn –Test with 30mA
•  x5 IΔn –Test with 150mA
• AUTO –Test sequence x1/2 – x1/2 180° – x1 – x1 180° – x5 – x5 180°

RCD x1, x5
Connect MW9325 to the socket and press FUNC to select RCD (DDR) function. Press the button for select the type of RCD and button for select the current (x1, x5) Press RED button for 3 seconds for start the measure.
Tripping Time is shown on the display and Green bar means the test is performed correctly Vc is the contact Voltage. If Contact Voltage >50V the RCD tripping test will be stopped, and the bar became RED
Display shown tripping time is higher than the limit standard and Red Bar means outcome NOT OK. Vc is the Contact Voltage.

AUTO function
Plug the instrument in the socket and press FUNC for select RCD function. Press arrow button for select type of RCD and button for select function AUTO. Start measuring by pressing the Red button, The instruments will execute all test in sequence when you re-arm the RCD and voltage is on.
AUTO mode consists of 6 tests in the following sequence:

Display Show RCD tripping time in ms. For every STEP tripping time in ms will be shown. GREEN if the test and tripping time are conformed to local tripping time standards.
Value in RED means the test is not conform to the local guideline.

LOOP

The measurement is performed according to IEC/EN61557-3 it measures impedance between Phase and Ground without RCD trip. Test Mode:

• TT Measure Earth Resistance (Ω) and Contact Voltage (V)
• TN Measure Impedance Z L-Pe (Ω) and Ipsc prospective short circuit current (A)
• Std Test with 15mA nominal current
•  Low Test with 6mA. Use this setup if during the test the RCD trip due to the presence of leakage current in the System under test. Low current test last 6 second longer than STD one.

LOOP FUNCTION
Plug MW9325 in the socket and press FUNC button for select LOOP. Press button for select TT or TN and press button for select TEST STD or LOW.
Press the RED button for 2 seconds to start the measurement.

LOOP TN and TT
Z line – PE impedance measurement in TT system
Z: Global Earth Resistance
Vc: Contact Voltage
NOTA: Limit for earth ground resistance is defined as: Vc: Contact Voltage Limit (50V o 25V)
IΔn: Nominal RCD

TT SYSTEM
Impedance measurement Zs L-pe in TN system
Z: Fault Ground Impedance L-Pe
Ipsc: Prospective short circuit current (for check correct sizing of MCB or FUSE protecting the system)

TN-S SYSTEM

VOLTAGE HARMONICS

This function allows to check Voltage quality and harmonics up to 49th.

TEST MODE:

• Fund Fundamental harmonic h1 (red), his frequency (~50Hz) and THD% Indicate total harmonic distortion of voltage supply.
• h2….50 Show VOLTAGE value TRMS of selected harmonics (red), his frequency and percentage (%) compared to h1 Fundamental 50Hz.

HARMONICS FUNCTION
Plug MW9325 into the socket and choose Har function by pressing FUNC button. Press for select harmonics higher or button   for select back  to h1
Pressing Red button activate HOLD function for froze the display value. Is it possible to disconnect MW9325 from the supply power for easily read and analyze the measurements until the SUPERCAP discharge (60 second when fully charged).

MEMORY

The instruments automatically save RCD and LOOP measurement in MEM area. Press FUNC button for enter MEM page. Press button or for move through the saved data.
Instruments store 64 measurements.
By pressing the RED button, you can generate a QR CODE allowing the creation of REPORTS (Figure below). The 64 locations are organized in chronological order. The last measurement will always be saved in the first free cell in ascending order (1… 64). The last measurement will be saved in the first free memory location (1…64) or in the last cell if the memory is full by erasing the others.
REPORT CREATE
Press the RED button to generate the QR CODE. Scan the QR CODE with your smartphone using the SEFRAM REPORT application. All recorded measurements will be included in a REPORT with the possibility to export it in pdf or csv. Download the SEFRAM REPORT APP for iOS and Android devices.
MEMORY
N° column indicate date. FUNC Indicate the measurement and his parameters. Value indicates the outcome. Any correct measurement is in Green while if Red means fail outcome.
Pressing the and keys simultaneously erases the internal  memory of the device.

TECHNICAL DATA

DDR / RCD IEC/EN61557-6
 Test voltage L -Pe : 190 ÷ 265V – Freq : 50Hz ± 5%

Type de DDR
RCD Type| ** IΔn| Resolution| I∆n Accuracy
A, AC, F| 30mA| < 0.1 IΔn| ±(0.0% + 5%I∆n)
Temps / Time| | 0.1ms| ±(2 ms + 2 dgt)
Boucle / Loop        IEC/EN61557-3
No-trop earth loop impedance | Tension de test / Test voltage : L-Pe 190 ÷ 265V – Freq. : 50Hz ± 5% Valeur minimale / Minimum value > 0,3Ω
Mode standard / Standard mode (STD) – Courant de test / Test current : 15mA
Range (Ω)| Resolution (Ω)| Accuracy
0.01 ÷ 9.99| 0.01| ±(5.0% + 8 dgt)
10 ÷ 99.9| 0.1| ±(5.0% + 8 dgt)
100 ÷ 999| 1| ±(5.0% + 8 dgt)
Mode bas / Low mode (LOW) – Courant de test / Test current : 6mA| ** ±(8.0% + 12 dgt)
Tension TRMS AC / AC TRMS Voltage (L-N)
Allowed crest factor : 1,5 ; Freq. : 42 ÷ 69Hz
Range (V)| Resolution (V)| Accuracy
190 ÷ 265| 1| ±(1.0% + 1 V)
Frequency

Gamme (Hz) Range (Hz)| Resolution (Hz)| Précision Accuracy
42 ÷ 69| 0.1| ±(2.0% + 1 dgt)
Voltage harmonics
Affichage : 1 ÷ 50 / Display : 1 ÷ 50 ; Les harmoniques de tension valent zéro si la valeur est < 0,8V / The voltage harmonics are zero if the value is < 0.8V
Range (V)| Resolution (V)| Accuracy
0.8 ÷ 265| 0.1| ±(3.0% + 5 dgt)
Socket test
Inversion Phase/Neutre – Inversion Phase/Terre – VN-Pe > 50V /
No earth – Phase/Neutral reverse – Phase/Earth reverse – VN-Pe > 50V
INPUT

Measurement category| CAT III 300V
Max. input voltage| 265V AC
Max. absorbed current| <25mA
Input voltage fluctuation| 10%
NORMES / STANDARDS
Operation| IEC/EN61557-3
| IEC/EN61557-6
Safety| IEC/EN61010-1
---|---
| IEC/EN61010-2-030
EMC| IEC/EN61326-1
AFFICHAGE ET MÉMOIRE / DISPLAY AND MEMORY
Features| Ecran LCD couleur, TFT / TFT, color graphic LCD
Memory| 64 emplacements / 64 locations
CONDITIONS ENVIRONNEMENTALES / ENVIRONMENTAL CONDITIONS
Altitude / Altitude| 0 ÷ 2000 m
Reference temperature| 23°C ÷ 5°C
Working temperature| **** 5°C ÷ 40°C
Relative humidity| <80%RH
Storage temperature| 20°C ÷ 60°C
Storage humidity| <80%RH
Pollution degree| 2
CARACTERISTIQUES MECANIQUES / MECHANICAL FEATURES
Dimensions (L x l x H) / Dimensions (L x W x H)| 81,5 x 70 x 83mm
Masse / Weight| 110gr

WARRANTY

•  This tool is guaranteed against any defect in material and workmanship, in accordance with the general conditions of sale. During the warranty period, defective parts can be replaced, but the manufacturer reserves the right to repair or replace the product. If the instrument must be returned to the after- sales service or to a retailer, the transport is charged to the Customer. The shipment must, in any case, be previously agreed. Attached to the shipment must always be inserted an explanatory note about the reasons for sending the instrument. For shipping use only, the original packaging. Any damage caused using non-original packaging will be charged to the Customer. The manufacturer declines all responsibility for damage caused to persons or objects.
• The warranty is not applied in the following cases:
•  Repair and/or replacement of accessories and battery (not covered by warranty).
•  Repairs that are necessary due to incorrect use of the instrument or its use with incompatible equipment.
• Repairs that are necessary due to inadequate packaging.
• Repairs that are necessary due to interventions carried out by unauthorized personnel.
• Changes made to the instrument without the explicit permission of the manufacturer.
•  Use not covered by the instrument specifications or user manual.
• The contents of this manual may not be reproduced in any form without the manufacturer’s permission.
•  Our products are patented, and trademarks registered. The manufacturer reserves the right to make changes to specifications and prices if this is due to technological improvements.

MAINTENANCE

Use a damp cloth and a small amount of detergent to clean the instrument shell.

• Do not use abrasive or chemical solvents.
• The instrument should be recycled as electronic waste.

ASSISTANCE
If the instrument does not work properly, before contacting the Service Department, check the status of the socket and the casing. If the instrument continues to malfunction, check if the procedure for using it complies with what is indicated in this manual. If the instrument is to be returned to the after-sales service or to a retailer, the transport is charged to the Customer. The shipment must, in any case, be previously agreed. Attached to the shipment must always be inserted an explanatory note about the reasons for sending the instrument. For shipping use only, the original packaging; any damage caused by the use of non-original packaging will be charged to the Customer

SEFRAM INSTRUMENTS
32 rue Edouard Martel
BP55
42009 St Etienne Cedex
France
+33 (0) 4 77 59 01 01
sales@sefram.com
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