Wavecom ET-809 User Manual

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ET-809
Insulation-Continuity Tester
User Manual
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Wavecom Instruments Insulation-Continuity Tester User Manual
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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
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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.
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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.
When AC voltage is present, before testing, it's value is displayed on the AC scale.
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2. Safety Notes
Rated environmental condition (1) Indoor use.
(2) Installation Category . (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-
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..
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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 61326-12006 CLASS B
EN 61326-12006 EN 61000-4-22001 EN 61000-4-32007
4. Connections
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5. Specifications
INSULATION
Test Voltage 250Vdc 500Vdc 1000Vdc +10%-0% +10%-0% +10%-0%
● Mirror scale 100MΩ 200MΩ 400MΩ
● Mid-Scale 1MΩ 2MΩ 4MΩ
Scale Multiplier x1/2 x1 x2
Accuracy ±5%
Output short-circuit current ±1.3mA
Regulated output voltage (up to 1mA current)
263.5V 525V 1052V
CONTINUITY
Low Ω3Ω / 500Ω
Test leads / fuse zero Ω adjustment by knob.
Output short-circuit current205mA
Accuracy±1.5% of scale length
AC VOLTAGE
Range0 - 500Vac
Accuracy±3% of scale length
GENERAL
Voltage WarningWarning light circuit live illuminate from 90Vdc/70Vac. Buzzer
beep from 24Vac/dc.
Battery CheckBattery Check indicate good batteries from 8Vdc to 13Vdc during
a load test of 205mA.
Battery OKBattery OK Led illuminate from 8Vdc and is operative while testing.
Power Source1.5V(AA) x 8
Dimension175(L) x 85(W) x 75(H)mm
WeightApprox. 650g (battery included)
Accessories include: Test leads
Fuse (0.5A/500V 5x20mm) Carrying case Instruction manual Batteries.
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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.
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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
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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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CONTINUITY TESTS - Ω RANGES
1. Select the desired ohm range, or 500Ω.
2. Short the test leads, press test button and adjust the ohms zero ADJ to
zero the pointer on the (green scale).
3. Check the circuit is not LIVE.
4. Connect the test leads to the circuit under test. Press the test button. Read the selected range directly.
GENERAL
For AC voltmeter, do not press the test button, this is the default mode of
the instrument.
AC voltmeter operates without batteries.
Insulation or continuity mode: for continuous operation, press and turn the
test button.
SAFETY PRECAUTION
The circuit must not be LIVE, conduct initial checks first. If at any time ,
the "LIVE" circuit light is illuminated, or the warning buzzer sounds - DO NOT PROCEED, the circuit is live.
Using the instrument in Insulation Mode may leave the
Circuits charged up if test leads are removed too quickly. Avoid this by releasing the test button while the test leads are still connected to the circuit for a few seconds.
9. Preparation for Measurement
Before testing Always check the following.
At Power "ON", check that Bat. OK led illuminate and check that there is no visual damage to the Instrument or test leads.
Check the test Leads continuity
1. Connect the leads to the Instrument.
2. Zero the test leads while on the 3 ohm range.
3. This will indicate that the continuity of the test leads is Ok.
4. Verify that the test leads insulation is in good condition.
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10. Functions
10.1 Battery Check
Turn the function selector to Batt. Check. This function has a load which draw about 205mA when test is performed, and therefore it is doing a worst case battery test. Then, press the test button, the pointer should be in the BAT.OK area. During the test, the bat. OK Led (on line battery check) must illuminate if the pointer is in the BAT.OK area.
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10.2 DC Warning The DC warning buzzer will beep continuously when DC voltage is higher than 30Vdc on the test probes and the test button is not pressed. The neon light "circuit live" will illuminate when the voltage on the test probes is higher than 90Vdc and the test button is not pressed.
10.3 AC Warning The AC warning buzzer will beep continuously when AC voltage is higher than 20Vac on the test probes and the test button is not pressed. The neon light "circuit live" will illuminate when the voltage on the test probes is higher than 65Vdc and the test button is not pressed.
10.4 AC Measurement The AC measurement is automatic on this instrument. As soon as AC voltage is present on the test leads, the instrument will display the AC voltage from 20 to 500Vac on the linear scale.
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10.5 Low Ohms Measurement 0 - 500Ω
Always check for voltage before testing and measuring on a circuit. This instrument is intended for measuring Low Ω and Insulation resistance on un- energized circuits only. Use the procedure explained at points 10.2, 10.3, 10.4.
The first procedure to follow, is to zero the test leads II and II the fuse resistance. The instrument is equipped with a Zero Ω Knob. First, short circuit the test leads by connecting them together, then, press the test button and adjust the zero Ω knob until the pointer is precisely on the "0" of the 500Ω scale.Use the mirror scale to be precise with the pointer.
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Connect the test leads to the circuit to be measured. For short test, press button and keep pressed. For long test or hand free measurements, press and turn the test button.
10.6 Low Ohms Measurement 0 –
Always check for voltage before testing and measuring on a circuit. This instrument is intended for measuring Low Ω and Insulation resistance on un-energized circuits only. Use the procedure explained at points 10.2, 10.3, 10.4.
The first procedure to follow, is to zero the test leads and the fuse resistance.The instrument is equipped with a Zero Ω Knob. First, short circuit the test leads by connecting them together, then, press the test button and adjust the zero Ω knob until the pointer is precisely on the "0" of the scale. Use the mirror scale to be precise with the pointer.
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Connect the test leads to the circuit to be measured. For short test, press button and keep pressed. For long test or hand free Measurements, press and turn the test button.
10.7 Insulation Resistance Measurement @ 250Vdc
Always check for voltage before testing and measuring on a circuit. This instrument is intended for measuring Low Ω and Insulation resistance on un-energized circuits only.
Use the procedure explained at points 10.2, 10.3, 10.4. Check the test leads and fuse resistance by zeroing the test leads and fuse
as per the 7.6 procedure. Connect the test leads to the circuit to be measured and wait for a few seconds. The instrument will automatically discharge any remaining energy which could be present on the circuit, and will check for voltage at the same time.
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Once you are sure that the circuit to be tested is not energized, then press the button for a short test duration or press and turn the button for a long test.Once you end the test, allow a few seconds for the Instrument to automatically discharge the circuit.
10.8 Insulation Resistance Measurement @ 500Vdc
Always check for voltage before testing and measuring on a circuit. This instrument is intended for measuring Low Ω and Insulation resistance on un-energized circuits only. Use the procedure explained at points 10.2, 10.3, 10.4.
Check the test leads and fuse resistance by zeroing the test leads and fuse as per the 7.6 procedure. Connect the test leads to the circuit to be measured and wait for a few seconds. The instrument will automatically discharge any remaining energy which could be present on the circuit, and will check for voltage at the same time.
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10.9 Insulation Resistance Measurement @ 1000Vdc
Always check for voltage before testing and measuring on a circuit. This instrument is intended for measuring Low Ω and Insulation resistance on un-energized circuits only. Use the procedure explained at points 10.2, 10.3, 10.4.
Check the test leads and fuse resistance by zeroing the test leads and fuse as per the 7.6 procedure. Connect the test leads to the circuit to be measured and wait for a few seconds. The instrument will automatically discharge any remaining energy which could be present on the circuit, and will check for voltage at the same time.
Once you are sure that the circuit to be tested is not energized, then press the button for a short test duration or press and turn the button for a long test. Once you end the test, allow a few seconds for the instrument to automatically discharge the circuit.
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11. Battery & Fuse Replacement
11.1 Battery Replacement Your analogue insulation tester's battery compartment is situated
under the tester. The BAT.OK will not illuminate when batteries need to be replaced. Disconnect the test leads from the Instrument, remove the battery cover and the batteries. Replace with eight 1.5V R6 or L6 batteries, taking care to observe the correct polarity.
Replace batteries and the battery cover.
11.2 Fuse replacement The fuse is located next to the batteries. To replace fuse, proceed as
per battery replacement to open the battery cover, then remove and replace the fuse located under the battery holder. Only replace with same specification fuse.(0.5A/500V)
12. Calibration & Servicing
Contact your nearest distributor about calibration certificate and servicing. Before returning the instrument, ensure that
the leads have been checked for continuity and signs of damage.
the batteries are in good condition.
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13. Cleaning & Storage
Periodically, wipe the case with a damp cloth and detergent ; do not use abrasives or solvents. If meter is not to be used for periods longer than 60 days, Remove the batteries and store them separately.
CAT - Is for measurements performed at the source of the low-voltage
installation.
CAT - Is for measurements performed in the building Installation. CAT - Is for measurements performed on circuits directly connected to the
low-voltage installation.
CAT - Is for measurements performed on circuits not directly connected to
mains.
Due to our policy of constant improvement and development, we reserve the right to change specifications without notice.
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