The Digital Insulation Resistance Tester series have high
performance, and safe configuration and improved electrocircuit.
It is one new item which has more fully function, higher precision,
and easier operation. It’s also one quakeproof, dustproof and
dampproof tester and can fit work environment of outdoor.
The output testing voltage can be changed between
100V/250V/500V/1000V/2500V/5000V for different item no. The
resistance can reach 200GΩ, the tester also can measure
This Tester apply for all kinds or electric equipment and
insulation materials such as transformer, electromotor, cable,
It is a perfect electrical testing meter.
(1) Read this Operation Manual carefully before use it.
(2) This meter is designed in accordance with IEC publication
1010, pollution degree II and installation category (over
(3) Should not use it before close the back lid cause of the
(4) Check the insulation layer of the test pin lead.
(5) Don’t rotate switch when testing.
(6) When seeing “ ” on the LCD, means the battery voltage is
low. Please replace the battery or charge the battery by the
battery charger to insure accurately testing.
Ground (maximum permitted voltage between terminal
(1) Low power consumed CMOS double integral A/D
transforming IC, auto-checking to zero, auto displaying
polarity, displaying when low battery.
(2) LCD: 3 1/2 digits display with a max. reading of 1999
(3) Has function of holding data and displaying signal.
(5) Can use rotating switch when testing voltage.
(6) Voltage below AC 750V can be tested.
(7) High voltage is on the rails when LED is on.
(8) Displaying when low battery.
(9) Drove by Battery not by hand.
(10) Auto switch the range when resistance measuring.
(11) With strong load, appox.1.0mA output short current.
(12) Perfect circuit protect, preventing damage by voltage shock
(13) Size of LCD: 68×55mm (Height of character is 35mm)
(14) Power: six battery 5# which is 1.5V (R6AA SUM-3)
9.6V Ni-Mh charge battery (HP-6688BR, CR, FR)
(15) Size of shape: 218×122×75mm.
(16) Weight: 900g (contain battery).
Working temperature: 0～40°C,
Storage temperature: -10～50°C,
Temperature to ensure precision:
23 ± 5°C, relative humidity <75%.
Accuracies are ± ( % of reading + number in last digit ) for one
Environment temperature: 23 ± 5°C, Relative humidity <75%
90～110% Testing Rating Voltage
10GΩ～200GΩ: ± ( 10.0%+5 )
20MΩ: 10kΩ, 200MΩ: 100kΩ, 2000MΩ:
1MΩ, 20GΩ: 10MΩ, 200GΩ: 100MΩ
Note: When you measure the resistance is less than 5MΩ in any
rating test voltage, the measuring time is not more then 10
Remark: fall down resistance
Explaining: Fall down resistance means lower limit value of
resistance which it ensure the voltage of two extremity of
measuring is less than 90% of rating test voltage.
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