Wavecom ET-809 Manuale utente

ET-809

Insulation-Continuity Tester

User Manual

Wavecom Instruments Insulation-Continuity Tester User Manual

Page 2

Index

Safety Precautions....................................................... 1-2

Safety Notes................................................................ 3

Features....................................................................... 3-4

Connections................................................................. 4

Specifications............................................................... 5

Why Test is Necessary................................................. 6

Instrument Layout........................................................ 7

Simplified Instructions.................................................. 8-9

Preparation for Measurement...................................... 9

Functions..................................................................... 10-16

Battery & Fuse Replacement....................................... 17

Calibration & Servicing................................................ 17

Cleaning & Storage..................................................... 17

Wavecom Instruments Insulation-Continuity Tester User Manual

Page 3

1. Safety Precautions

Electricity can cause severe injuries even with low voltages or currents.

Therefore it is extremely important that you read the following

information before using your analogue tester.

1.1 This Instrument must only be used and operated by a

competent trained person and in strict accordance with the instructions.

Wavecom will not accept liability for any damage or injury caused by

misuse or non compliance with instructions and safety procedures.

1.2 This instrument must not be used on live circuits. Ensure

all circuits are de-energised before testing. See paragraph 1.8 for

details of built-in warning features should your analog insulation tester

be connected to a live system.

1.3 Never open your analogue insulation tester except for

battery replacement. (see battery replacement section)

1.4 Always inspect you analog insulation tester and test

leads before use for any sign of abnormality or damage. If any

abnormal conditions exist (broken test leads, cracked case, display

faulty etc...) do not attempt to take any measurement or use the tester.

Return your analogue insulation tester to your nearest distributor for

service.

1.5 Never replace the protective fuse with any other than the specified or

equivalent

1.6 Your analogue insulation tester has been designed with

your safety in mind. However, no design can completely protect

against incorrect use. Electrical circuits can be dangerous and / or

lethal when a lack of caution or poor safety practice is used.

Wavecom Instruments Insulation-Continuity Tester User Manual

Page 4

Use with caution in the presence of voltage above 24V as

these pose a shock hazard.

1.7 Pay attention to cautions and warnings which will inform

you of potentially dangerous procedures.

1.8 Your analogue insulation tester has a live circuit warning

beeper. If it is connected to an AC live circuit, a beep of twice the

frequency of the voltage present will be heard.

DO NOT proceed to test and immediately disconnect the

instrument from the circuit. In addition, the warning light will

illuminate if the voltage is above 100Vdc or 70Vac.

WhenAC voltage is present, before testing, it's value is

displayed on the AC scale.

Wavecom Instruments Insulation-Continuity Tester User Manual

Page 5

2. Safety Notes

Rated environmental condition

(1) Indoor use.

(2) Installation Category Ⅲ.

(3) Pollution Degree 2.

(4) Altitude up to 2000M.

(5) Relative humidity 80% Max.

(6) Ambient temperature 0°C~40°C.

Meter is protected throughout by double insulation or reinforced

insulation.

Warning ! risk of electric shock.

Caution ! refer to this manual before using the meter.

3. Features

●High quality taut band movement.

●Three insulation test voltages：

1- 250Vdc 100MΩ

2- 500Vdc 200MΩ

3- 1000Vdc 400MΩ

●Two continuity test on "Low Ohms"：

1- 500Ω

2- 3Ω

●Small and Lightweight.

●AC voltmeter with linear scale up to 500Vac.

●205mA continuity short circuit current.

●1mA test current on insulation test at nominal voltage.

●Automatic discharge of capacitance and inductive circuit off

charge stored in the circuit under test..

Wavecom Instruments Insulation-Continuity Tester User Manual

Page 6

●Live Warning and display of external voltage presence.

●Fuse and overload protected.

●On line battery monitoring shows if battery is ok.

●Very low battery consumption.

●On-Load battery check (+/-205mA load for worst case).

●Operates on 8 dry batteries AA, R6P type.

●Mirrored scale for easy and accurate reading.

●Push and turn locking switch for long and hand free testing.

●Supplied with high quality test leads.

●Meets：

LVD IEC/EN 61010-1

EMC EN 61326-1：2006 CLASS B

EN 61326-1：2006

EN 61000-4-2：2001

EN 61000-4-3：2007

4. Connections

Wavecom Instruments Insulation-Continuity Tester User Manual

Page 7

5. Specifications

INSULATION

●Test Voltage 250Vdc 500Vdc 1000Vdc

+10%-0% +10%-0% +10%-0%

●Mirror scale 100MΩ200MΩ400MΩ

●Mid-Scale 1MΩ2MΩ4MΩ

●Scale Multiplier x1/2 x1 x2

●Accuracy ±5%

●Output short-circuit current ±1.3mA

●Regulated output voltage (up to 1mAcurrent)

263.5V 525V 1052V

CONTINUITY

●Low Ω：3Ω/ 500Ω

●Test leads / fuse zero Ω adjustment by knob.

●Output short-circuit current：205mA

●Accuracy：±1.5% of scale length

AC VOLTAGE

●Range：0 - 500Vac

●Accuracy：±3% of scale length

GENERAL

●Voltage Warning：Warning light circuit live illuminate from 90Vdc/70Vac. Buzzer

beep from 24Vac/dc.

●Battery Check：Battery Check indicate good batteries from 8Vdc to 13Vdc during

a load test of 205mA.

●Battery OK：Battery OK Led illuminate from 8Vdc and is operative while testing.

●Power Source：1.5V(AA) x 8

●Dimension：175(L) x 85(W) x 75(H)mm

Weight：Approx. 650g (battery included)

●Accessories include:

Test leads

Fuse (0.5A/500V 5x20mm)

Carrying case

Instruction manual

Batteries.

Wavecom Instruments Insulation-Continuity Tester User Manual

Page 8

6. Why Test is Necessary?

INSULATION

Every electrical apparatus and installation need to be safe for the user and

for the equipment itself.

Electrical conductors of electricity need to be insulated from each other, so

that they do not create electrical hazard or unnecessary consumption.

Badly insulated circuits can create leakage current which can be dangerous

and trip your GFCI, RCCB or ELCB.

Each country regulates these levels at which the insulation is acceptable.

Generally, insulation resistance measurements are done between each

conductor and the earth, and between each conductors.

CONTINUITY

Checking the continuity of wires, complete circuits, connections, closure of

contacts, circuit breakers, fuses, bounding resistance of connections, etc...

are all very important.

Wavecom Instruments Insulation-Continuity Tester User Manual

Page 9

7. Instrument Layout

1.Test Button Switch

2.Function Selector

3.Battery OK indicator

4.Mirror Scale

5.Live Circuit Warning Light

6.Test Leads and Fuse Zeroing Knob

Wavecom Instruments Insulation-Continuity Tester User Manual

Page 10

8. Simplified Instructions

INSTRUCTIONS ANALOGUE INSULATION-CONTINUITY TESTER

WARNING

This instrument must only be used by a competent trained

individual. Consult the full operating instructions. Never

press the test button before connecting test leads to circuit

to test. INITIAL CHECKS

1. Switch to "Batt. Check" and depress the test button. If the pointer does

not move to "BAT.OK", the battery needs to be replaced before

proceeding.

2. Connect test leads to instrument, switch to 3Ω. Press and turn the test

button (continuous mode), short the test leads. The pointer should swing

from infinite towards zero. If not, the test leads or fuse (0.5A fast acting

ceramic) maybe faulty.

INSULATION TESTS MΩ RANGES

1. Select the desired insulation test voltage range, 250V, 500V, or 1000V.

2. Connect the leads to the instrument and circuit under test.

3. Check the circuit is not LIVE.

4. Press the test button. Read the red MΩ scale directly for 500V, multiply

by 0.5 (or divide by 2) for 250V and multiply by 2 for 1000V.

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