3. SPECIFICATIONS
● Measuring Range and Accuracy (at 23±5°C, relative humidity 45 -75%)
○ Insulation Resistance Ranges:
Nominal Output Voltage 250V 500V 1000V
Measuring
0 ~19.99MΩ 0 ~19.99MΩ 0 ~19.99MΩ
Ranges
0 ~ 199.9MΩ 0 ~ 199.9MΩ 0 ~ 199.9MΩ
0 ~ 1999MΩ 0 ~ 1999MΩ 0 ~ 1999MΩ
Open-Circuit 250V DC 500V DC 1000V DC
Voltage +20%,-0% +20%,-0% +20%,-0%
Nominal Current
1mA DC min. 1mA DC min. 1mA DC min.
at 0.25MΩ at 0.5MΩ at 1MΩ
Short-Circuit
Current
1.5mA approx
20MΩ
±1.5%rdg ±5dgt
200MΩ
Accuracy
2000
0~1GΩ
±3%rdg ±3dgt
MΩ
1G~2GΩ
±10%rdg ±3dgt
○ Continuity Ranges:
Ranges 20Ω 200Ω 2000Ω
Measuring Ranges 0 ~ 19.99Ω 0 ~ 199.9Ω 0 ~ 1999Ω
Open-Circuit
Voltage
7 ~ 12V approx
Measuring Current
at 0.2Ω ~ 2Ω
200mA min
Accuracy
±1.5%rdg ±5dgt
±1.5%rdg ±3dgt
○ AC Voltage Indication
0 ~ 600V ±5%rdg ±3dgt
― 5 ―
2. FEATURES
MODEL-3005A/3007A are microprocessor controlled insulation-continuity
testers.
● Designed to safety standards:
IEC 61010-1 Overvoltage CAT III 300V Pollution Degree 2
IEC 61010-2-31 (Safety requirements for hand-held probe assemblies)
● Display with back light function to facilitate work at night or dimly lit
locations (Model 3007A only)
● Bar graph to indicate measured results
● Strap belt to make both hands' operation easier
● Live circuit warning indication and buzzer
● Auto discharge function
When insulation resistance is measured, electric charges stored in
capacitive circuits are automatically discharged after testing. Discharge
can be checked with live circuit warning.
● Auto power off function
To prevent the instrument from being left powered on and conserve
battery power, the instrument automatically turns off approx. 10 minutes
after the last switch operation.
● LOK mode (Model 3007A only)
The test current is removed once a stable reading is reached to prevent
unnecessary battery consumption.
― 4 ―
3007A-E01.9.1211:52AMページ4
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