EXTECH EX380396 [6/17] Insulation resistance testing
![EXTECH EX380396 [6/17] Insulation resistance testing](/views2/1668824/page6/bg6.png)
380395/380396 -EU-EN-V1.2-4/12
6
Insulation Resistance Testing
CAUTIONS:
Ensure that no electrical charge exists on the circuit under test.
Insulated gloves should be worn while testing.
Use extreme caution to avoid touching the tips of the test leads or the circuit under test
when the PRESS TO TEST button is pressed; High Voltage is present.
Do not make measurements when the battery cover is removed.
Always connect the Earth Cord (black) to the Earth terminal of the circuit under test.
CAUTION: When the live circuit warning indicates “>30V” or the warning buzzer sounds and
the
display flashes, the measurement cannot be made even if the
“Press to Test” button is pressed.
DANGER
Do not touch the circuit under test immediately after testing. Voltage stored in the circuit may
cause electric shock.
Leave the test leads connected to the circuit under test and never touch the circuit until the
discharge is complete.
PRESS TO TEST Knob
All insulation resistance tests are initiated with the PRESS TO TEST
knob.
1. Press and HOLD the knob to perform a test. Release the knob to
end the test.
2. Press and TURN the knob 90 degrees clockwise to the LOCK
position to lock the meter in the continuous test mode. To end a test,
either rotate the knob 90 degrees counterclockwise or press the
STOP button.
3. Always return the knob to the vertical position before beginning a
test.
Emergency Stop
To stop a test at any time, press the STOP button or rotate the PRESS TO TEST knob in a counter-
clockwise direction.
The STOP button also clears the display and beeper after a discharge is complete.
Содержание
- Features 2
- Introduction 2
- International safety symbols 3
- Safety 3
- Safety notes 3
- Warnings 3
- Cautions 4
- 8 9 10 11 5
- Display description 5
- Meter description 5
- Emergency stop 6
- Insulation resistance testing 6
- Press to test knob 6
- Insulation resistance test 7
- Polarization index pi 8
- Timed insulation test 8
- Dielectric absorption ratio dar 9
- Insulation resistance measurement considerations 9
- Use of the guard terminal 10
- Auto power off 11
- Backlight 11
- Battery check 11
- Data hold 11
- Ac dc voltage and resistance testing 12
- Ac dc voltage measurements 12
- Low resistance and continuity measurements 12
- Max min function ac dc voltage measurements only 12
- Peak hold function ac dc voltage measurements only 13
- Relative mode ac dc voltage measurements only 13
- Battery replacement 14
- Maintenance 14
- Power adaptor 14
- Cleaning and care 15
- General specifications 16
- Specifications 16
- 380396 eu en v1 4 12 17 17
- Ac dc voltage specifications 17
- Continuity buzzer triggers if the resistance is 50 or lower 17
- Copyright copyright 2012 extech instruments corporation a flir company 17
- In insulation resistance test mode this device is used to check whether or not the electric charge stored in the equipment under test has been discharged during an insulation resistance test the voltage value displayed on the lcd above the resistance measurement is the test reference voltage value 17
- Insulation resistance measurement specifications 17
- Low resistance measurement and continuity specifications 17
- Open circuit voltage 4 v minimum 17
- Range resolution accuracy 17
- Short circuit current 200ma minimum 17
- Test voltages 500v 1000v 2500v 5000v 17
- To 6 0k 0 01k 1 rdg 15d 17
- To 600 0 1 rdg 10d 17
- To 600 vac 40 to 400hz 1 of rdg 5d 40 to 60 hz 2 of rdg 10d 61 to 400 hz 17
- To 600 vdc 0 v 1 of reading 5 digits 17
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