HT9019 Electrical Line User Manual

: June 4, 2024
: HT

HT9019 Electrical Line

HT9019-Electrical-Line-product-image

SAFETY PRECAUTIONS AND PROCEDURES

This clamp complies with IEC/EN61010-1. For your own safety and in order to avoid damaging the instrument, you’re recommended to keep to the instructions contained in this manual and read carefully all the notes preceded by the symbol .
Take extreme care for the following conditions while measuring:

Do not measure voltage or current in humid or wet environment.
Do not use the meter in presence of explosive gas (material), combustible gas (material), steam or dust.
Insulate yourself from the object to be tested.
Do not touch exposed metal (conductive) parts such as test lead ends, sockets, fixing objects, circuits, etc.
If you detect anomalies of testing end (metal part) and attachment of the meter such as breakages, deformations, foreign substances, no display, etc., do not take any measurement.
Measuring voltage over 20V as it might cause human body electricity conduction.
The followings symbols are used on meter and in this manual:
- Caution: refer to the instruction manual. An incorrect use may damage the tester or its components
- High Voltage ranger: electrical shock risk
- Double insulated instrument
- AC Voltage or Current
- DC Voltage or Current
- Ground reference

PRELIMINARY

This apparatus has been designed for use in an environment of pollution degree 2. Indoor use.
It measures CURRENT and VOLTAGE on CAT IV 600V and CAT III 1000V plants. For measurement categories please see § 1.4.
You must comply with the usual safety regulations aimed at protecting you against the dangerous electric current and protecting the instrument against an incorrect operation.
Only the leads supplied with the instrument guarantee compliance with the safety standards. They must be in good conditions and they must be replaced, if necessary, with an identical model.
Do not test or connect to any circuit whose voltage or current exceeds the specified overload protection.
Make sure that the batteries are installed correctly.
Before connecting the test probes to the installation, check that the function selector is positioned on the required measurement.
Make sure that the LCD and the range indicator show the same as the function desired.

DURING USE

Always keep to the instructions contained in this manual.

AFTER USE

Once the measurements are completed, turn the rotary switch to OFF.
If you expect not to use the clamp for a long time, remove the battery.

MEASURING (OVERVOLTAGE) CATEGORIES DEFINITIONS

The norm EN 61010-1: Safety requirements for electrical equipment for measurement, control and laboratory use, Part 1: General requirements, defines what measuring category, usually called overvoltage category, is. On § 6.7.4: Measuring circuits, it says:
(OMISSIS) circuits are divided into the following measurement categories:

Measurement category IV is for measurements performed at the source of the low-voltage installation.
Examples are electricity meters and measurements on primary overcurrent protection devices and ripple control units.
Measurement category III is for measurements performed in the building installation. Examples are measurements on distribution boards, circuit breakers, wiring, including cables, bus-bars, junction boxes, switches, socket-outlets in the fixed installation, and equipment for industrial use and some other equipment, for example, stationary motors with permanent connection to fixed installation.
Measurement category II is for measurements performed on circuits directly connected to the low voltage installation..
Examples are measurements on household appliances, portable tools and similar equipment..
Measurement category I is for measurements performed on circuits not directly connected to MAINS.
Examples are measurements on circuits not derived from MAINS, and specially protected (internal) MAINS-derived circuits. In the latter case, transient stresses are variable; for that reason, the norm requires that the transient withstand capability of the equipment is made known to the user.

GENERAL DESCRIPTION

HT9019 meter can perform the herewith measurements:

DC and AC TRMS Voltage up to 1000V
AC TRMS Current up to 1000A
Resistance and continuity test with buzzer
AC voltage detection with and without contact with integrated sensor

Each parameter can be selected by rotating the 7 positions switch. To abilitate the hold function the HOLD key is available. There are also the following keys: “MODE “MAX/MIN”, “REL”, “PEAK” and “ ”. For their use please see § 4.2. The selected quantity appears on a LCD display with indication of measurement units and functions. An analogical bargraph it is also availbale

TRMS AND MEAN VALUE MEASURING INSTRUMENTS

Safety testers for alternate parameters are divided into two big families:

MEAN VALUE instruments: instruments which measure only the value of the wave at the fundamental frequency (50 or 60 Hz)
TRUE ROOT MEAN SQUARE instruments, also defined as TRMS: instruments which measure the true root mean square value of the quantity under test.

In presence of a perfectly sinusoidal wave, both families provide identical results. In presence of distorted waves the readings are different. Mean value instruments provide only the value of the fundamental wave while True RMS instruments provide the value of the entire wave, including harmonics (within the passband of the instrument). Accordingly, if the same quantity is measured with both kinds of instruments, the measured values are identical only if the wave is purely sinusoidal. Should it be distorted, True RMS instruments provide higher values than medium value instruments.

TRUE ROOT MEAN SQUARE VALUE AND CREST FACTOR DEFINITIONS

The current effective value is defined as follows: “In an interval of time equivalent to a period, an alternate current with effective value having an intensity of 1A, by passing on a resistor, disperses the same energy which would be dispersed in the same period of time by a direct current having an intensity of 1A”. From this definition comes the numerical

PREPARATION FOR USE

INITIAL

The tester has been checked from a mechanical and electrical point of view before shipment.
Every care has been taken to make sure that the instrument reaches you in perfect conditions.
However, it’s advisable to make a rapid check in order to detect any damage which may have occurred in transit. Should this be the case, enter immediately the usual claims with the carrier.
Make sure that all the accessories listed in § 6.3 are contained in the package. In case of discrepancies contact Your dealer.
In case of returning of the tester please keep to the instructions given in § 7.

POWER SUPPLY

The instrument is battery supplied. One 1x9V battery type NEDA 1604 IEC 6F22 JIS 006P is included in the package. Battery life: about 200 hours. When batteries are low, the
symbol “ ” appears on the display. Replace them immediately, following the instructions given in § 5.2.
The instrument disposes of the Auto Power OFF function (not disable) consisting in an automatic switching off 15 minutes of idleness

CALIBRATION

The tester complies with the technical features listed in this manual. Its performances are guaranteed for one year.

STORAGE

In order to guarantee the accuracy of the measurements, after a period of storage under extreme environmental condition, wait for the necessary time so that the tester returns to normal measuring conditions (see § 6.2.1).

OPERATING INSTRUCTIONS

INSTRUMENT DESCRIPTION

Command description

HT9019-Electrical-Line-1

CAPTION:

Inductive clamp jaw
LED for AC voltage detection
Jaw trigger
Function selector
HOLD / key
MODE, MAX/MIN, Hz%, REL, PEAK function keys
LCD display
Vï— input jack
COM input jack

Fig. 1: Instrument description

Alignment marks
Put the conductor within the jaws on intersection of the indicated marks as much as possible (see Fig. 2) in order to meet the meter accuracy specifications

CAPTION:

Alignment marks
Conductor

FUNCTION KEY DESCRIPTION

H key
By pushing key the parameter measured value is frozen on the display and the symbol appears on it. This mode is disabled by pushing key or moving the rotary switch.

key
Keep pressed the key for the backlight activation. This light could help the operator reading the display while measuring in dark sites. For sake of battery saving after 10 seconds the light is automatically switched off.

MODE key
By pushing MODE key the selection of resistance test and continuity test is possible in 4.2.4. MAX/MIN key
By pushing MAX/MIN key the parameter maximum and minimum values are measured. Both values are stored in memory and they can be shown cyclically when pressing “MIN MAX” key. The display shows the symbol linked to the selected function: “MAX” for maximum value, the symbol “MIN” for minimum value.
This mode is activated on each measurement except for continuity test. This mode is disabled keeping pressed MAX/MIN key or moving the rotary switch.

REL key
This key permits to perform the zeroing of value at display and a relative measurement of the parameter under test. By pushing REL key the instrument takes the actual parameter’s value as on offset and performs a relative measurement. The relative value is displayed, it’s calculated as actual value – offset value, the “REL” symbol is shown at display and the bargraph is disabled.
This mode is disabled for resistance test, continuity test and with MAX/MIN mode activated. This mode is disabled pressing REL key again or moving the rotary switch

PEAK key
By pushing PEAK key permits to activated the maximum peak measurement of AC current (calculated with response time <10ms). The “P” symbol is shown at display and the value is continuously updated by the meter.
This mode is disabled pressing PEAK key again or moving the rotary switch

FUNCTIONS OF ROTARY SWITCH DESCRIPTION

AC Voltage measurement

Rotate the switch on position
Insert the red test lead plug into jack and the black test lead plug into COM jack (Fig. 3)
Connect the two long ends of test leads to the desired circuit, then reading will be displayed
When “O.L.” symbol is displayed, the result exceeds the maximum value that the instrument is capable of measuring
With meter switched on and rotary switch in each position move the integrated sensor close to an AC source. The red LED turns on for detected voltage > 100V
For HOLD, MAX/MIN and REL features please refer to § 4.2

CAUTION

Due to the high input impedance is possible that the meter performs the zero of the display taking longer.
The possible blinking values shown at display with open input terminals are not a problem of the meter and these values will not be added to the measured value .

DC Voltage measurement

CAUTION
Maximum input for DC Voltage measurements is 1000V. Do not take any voltage measurement exceeding this limit in order not to risk electrical shock or damaging the tester.

Rotate the switch on position
Insert the red test lead plug into jack and the black test lead plug into COM jack (Fig. 4)
Connect the two long ends of test leads to the desired circuit, then reading will be displayed
When “O.L.” symbol is displayed, the result is over the maximum value that the instrument is able to measure value.
For HOLD, MAX/MIN and REL features please refer to § 4.2

CAUTION

Due to the high input impedance is possible that the meter performs the zero of the display taking longer
The possible blinking values shown at display with open input terminals are not a problem of the meter and these values will not be added to value.

Resistance measurement and Continuity test
Before taking any in circuit resistance measurement, remove power from the circuit to be tested and discharge all the capacitors.

Rotate the switch
Insert the red test lead plug into — jack and the black test lead plug into COM jack (Fig. 5)
Connect the two long ends of test leads to the desired circuit, then reading will be displayed
Pushing MODE key and select continuity test. The symbol is shown at display. Buzzer emits sound if the measured resistance value is less about 60
When “O.L.” symbol is displayed, the result under test exceeds the maximum value that the instrument is capable of measuring
For HOLD and MAX/MIN features please refer to § 4.2

AC Current measurement

HT9019-Electrical-Line-6

CAUTION
Make sure that all the test leads are disconnected from the meter terminals for current measurement.

Rotate the switch on 60Aï¾, 600Aï¾, or 1000Aï¾ position
Put the conductor to be tested inside to the center of clamp jaw to perform accurate measurements. Consider the notches on jaws as reference (see Fig. 2). The reading will be displayed
When symbol is displayed, the result exceeds the maximum value that the instrument is capable of measuring. Select an higher range
For HOLD, MAX/MIN, REL and PEAK features please refer to Â§ 4.2

CAUTION
The possible blinking values shown at display with open input terminals are not a problem of the meter and these values will not be added to the value.

MAINTENANCE

GENERAL INFORMATIONS

This digital clamp meter is a precision instrument. Whether in use or in storage, please do not exceed the specification requirements to avoid possible damages or dangers.
Do not place this meter at high temperatures or humidity or expose it to direct sunlight.
Be sure to turn off the meter after use. If you expect not to use the tester for a long time, remove the battery in order to avoid leakages of battery liquid that would damage the internal parts.

BATTERY REPLACEMENT

When ” appears on the display, replace the battery.
CAUTION Only expert and trained technicians must perform this operation. Remove the test leads or the conductor under test before replacing the battery

Rotate the switch on OFF.
Remove the test leads or the objects to be tested.
Remove the screw from the battery cover, and detach the battery cover from the bottom cover.
Remove the battery
Replace the battery with a new one same type (see § 6.1.2)
Replace the battery cover and screw
Use the appropriate battery disposal methods for Your area

CLEANING

For cleaning the instrument use a soft dry cloth. Never use a wet cloth, solvents or water, etc.

END OF LIFE

CAUTION: this symbol indicates that equipment its accessories and battery shall be subject to a separate collection and correct disposal.

TECHNICAL SPECIFICATIONS

CHARACTERISTICS

Uncertainty is calculated as [% rdg + (number of dgt) x resolution]. It is referred to the following reference conditions: 18°C  28°C (65°F  83°F) with RH < 75%

DC Voltage (Autorange)
Range| Resolution| Uncertainty| Input impedance| Overload protection
---|---|---|---|---
600.0mV| 0.01mV| ****

±(1.0%rdg + 3dgt)

| ****

10MW

| ****

1000VDC/ACrms

6.000V| 0.001V
60.00V| 0.01V
600.0V| 0.1V
1000V| 1V

The meter emits a continuous sound with VDC >1000V

AC Voltage TRMS (Autorange)
Range| Resolution| Uncertainty| Input impedance| Bandwidh| Overload protection
---|---|---|---|---|---
6.000V| 0.001V| ±(1.0%rdg+4dgt) (50 ¸ 60Hz)

±(3.5%rdg+5dgt) (61 ¸ 400Hz)

| ****

10MW

| ****

50-400Hz

| ****

1000VDC/ACrms

60.00V| 0.01V
600.0V| 0.1V
1000V| 1V

Integrated sensor for AC voltage detection: LED turn on for phase-earth voltage > 100V, 50/60Hz The meter emits a continuous sound with VDC >750V

Resistance and Continuity test (Autorange)
Range| Resolution| Uncertainty| Buzzer| Overload protection
---|---|---|---|---
600.0W| 0.1W| ±(1.0%rdg+5dgt)| ****

≤ 60W

| ****

600VDC/ACrms

Test current of continuity test: < 0.35mA

AC TRMS Current
Range| Resolution| *Uncertainty ()| Bandwidh| Overload protection
---|---|---|---|---
60.00A| 0.01A| ±(2.8%rdg+12dgt)| **

50 ¸ 60Hz

| ****

1000AACrms

600.0A| 0.1A| ±(2.8%rdg+8dgt)
1000A| 1A| ±(3.0%rdg+8dgt)
60.00A| 0.01A| ±(4.5% rdg+10dgt)| ****

61 ¸ 400Hz

600.0A| 0.1A| ±(5.0%rdg+10dgt)
1000A| 1A

PEAK function: response time <10ms
(*) Referred to cable inside to the center of clamp jaws. Position sensitivity: ï‚±2.0%rdg

Safety

Comply with: IEC/EN61010-1
Insulation: double insulation
Pollution degree: 2
Max height of use: 2000m (6562 ft)
Installation category: CAT IV 600V, CAT III 1000V to ground,

General data

Mechanical characteristics
Dimensions (L x W x H): 252 x 88 x 44mm ; 10 x 3 x 2 in
Weight (including battery): 402g (14 ounces)
Max conductor size: 45mm (2 in)

Supply

Battery type: 1x9V battery NEDA 1604 IEC 6F22 JIS 006P.
Low battery indication: “ ” is displayed when the battery level is low
Battery life: about 200 hours
Auto Power OFF: after 15 minutes of idleness (not disabled)

Display

Characteristics: 4 LCD (max 6000 counts), decimal point, unit symbol
indication, bargraph and backlight
Sample rate: 2 times/sec
Conversion mode: TRMS

ENVIRONMENTAL CONDITIONS

Climatic conditions

Reference temperature: 18°C 28°C (65°F 83°F)
Operating temperature: 5 ÷ 40 °C (41°F 104°F)
Operating humidity: < 75%RH
Storage temperature: -20 ÷ 60 °C (-4°F 140°F)
Storage humidity: < 80% RH

This product conforms to the prescriptions of the European directive on low voltage 2006/95/EEC and to EMC directive 2004/108/EEC

STANDARD ACCESSORIES

Test leads – Code 4413-2
Carrying bag
User manual
Battery

SERVICE

WARRANTY CONDITIONS

This equipment is guaranteed against material faults or production defects, in accordance with the general sales conditions. During the warranty period (one year), faulty parts may be replaced. The manufacturer reserves the right to decide either to repair or replace the product.
In case of returning of the instrument, all transport charges must be paid by the customer. The instrument must be accompanied by a delivery note indicating the faults or reasons of returning. The returned tester must be packed in its original box. Any damage occurred in transit because of lack of original packaging will be debited to the customer.
The manufacturer is not responsible for any damage against persons or things. Accessories and batteries are not covered by warranty.
The warranty won’t be applied to the following cases:

faults due to improper use of the equipment
faults due to combination of the tester with incompatible equipment.
faults due to improper packaging.
faults due to servicing carried out by a person not authorized by the company.
faults due to modifications made without explicit authorization of our technical department.
faults due to adaptation to a particular application not provided for by the definition of the equipment or by the instruction manual.

The contents of this manual cannot be reproduced in any form without our authorization.
Our products are patented. Our logotypes are registered. We reserve the right to modify characteristics and prices further to technological developments.

SERVICE

If the equipment doesn’t work properly, before contacting the SERVICE, test the batteries, the test leads, etc., and change them if necessary. If the equipment still doesn’t work, make sure that your operating procedure complies with the one described in this manual. In case of returning of the instrument, all transport charges must be paid by the customer. The instrument must be accompanied by a delivery note indicating the faults or reasons of returning. The returned tester must be packed in its original box. Any damage occurred in transit because of lack of original packaging will be debited to the customer.