IWH DI-3008 User manual

3-1/2 Digital Insulation Tester
Operation Manual
DI-3008
DI-3008

Your Digital Insulation Tester
This instrument is a compact, battery operated, handheld Digital Insulation
Tester with safety protector, and auto open top 3 ½ digit display. Please
read this manual for a description of various operations and safety proce-
dures before using the Tester.
1. Top
2. Backlight switch
3. Power switch
4. Insulation test switch ‘PUSH’
5. Function/Range switch
6. HV red indication lamp
7. Safety protector
8. Black insulation test lead socket
9. Shield Socket
10. Red Insulation test lead Socket
Safety Information
The following safety information must be observed to insure maximum
personal safety during the operation of this meter.
1. Do not operate the meter if the body of meter or the test
leads look broken.

2. Check the main function dial and make sure it is at the correct position
before each measurement.
3. Do not perform insulation tests on a live power system.
4. When pressing the "HV" switch, the "HV" red indicator lamp will light.
A DC 250V, 500V or 1000V high voltage output will be present be-
tween the "E" and "L" jacks. To avoid shock, please do not come into
contact with the jacks.
5. Change the battery when the “low battery” symbol appears to avoid
incorrect data. General Specifications
Display: 3 1/2 digit LCD with a max. reading of 1999.
Polarity: Automatic negative polarity indication.
Zero adjustment: Automatic.
Over range indication: Only the "1" or "-1" display.
Safety Standards: The meter is up to the standards of IEC1010 Double
Insulation, Pollution Degree 2, Over voltage Category II.
Operating Environment: Temperature 32～104F(0～40C)
humidity＜80%RH.
Storage Environment: Temperature -4～140F(-20～60C)
humidity＜90%RH.
Power supply: 9V Zinc-carbon battery.
Size: 155mm×97mm×50mm
Weight: Approx 320g (including battery).
Accessories: operation manual, test leads, battery (6F22)
Electrical Specifications
Test voltage 250V 500V 1000V
Range
0.1 MΩ-200MΩ
20MΩ-2000MΩ
Accuracy 4.0%+20
short circuit
current
1.7mA 1.7mA 1.7mA

Battery replacement
1. When the battery voltage drops below proper operation range the “low
battery” symbol will appear on the LCD.
2. Before changing the battery, set the selector switch to "OFF". Open
the cover of the cabinet with a screwdriver.
3. Replace the old battery with the same type battery.
4. Close the cover and fasten the screw.
Operation
1. Connect the black insulation test lead to the "L" socket and the red
insulation test lead to the "E1" or the ”E2” socket.
2. Set the selector switch to desired "250V", "500V", or "1000V" position.
3. Connect the test leads to two points of a circuit and ensure contact.
4. Press the “PUSH” button, the HV red indication lamp will light, indicat-
ing high voltage output, read the insulation resistance value of the
circuit being measured from the LCD panel.
Note: When you press the “PUSH” button and the HV red indication
lamp lights, the socket will have a DC 250V, 500V, or 1000V high voltage
charge between the "E" and "L". To avoid shock, please do not come into
contact with the jacks. Maintenance
1. Before opening the cover, disconnect both test leads and never use
the meter before the cover is closed.
2. To avoid contamination or static damage, do not touch the circuit board
without proper static protection.
3. If the meter is not going to be used for a long time, take out the battery
and do not store the meter in a high temperature or high humidity envi-
ronment.
4. Repairs or servicing not covered in this manual should only be per-
formed by a qualified personal.
5. Periodically wipe the case with a dry cloth and detergent. Do not use
abrasives or solvents on this instrument.