KM-1620 / KM 1720 single-jaw type Earth Resistance Tester is widely used for earth resistance testing of the equipments in the field of power, telecommunication, weather, as well as the other electrical equipments with the function of easy operation, high-accuracy and good adaptation of testing environment.
FUNCTIONS AND FEATURES: |
* Beyond the limitation of the traditional method of earth resistance testing, no assistance poles are
required, with easy and convenient operation.
* No error of electrodes arranging, which results in good consistency under the condition of retesting.
* Equipped with standard testing coil which can be used to do the self-testing with accuracy.
* With a compact & sturdy structure, it can operate under the condition of harsh - environment.
* Intelligent and automatic measurement, which can guarantee the safety of operation. |
| GENERAL SPECIFICATIONS : |
Display screen |
: |
4 digit LCD, 47 x 28.5mm in length |
Bus Bar Dimension |
: |
32 mm × 65 mm. |
Jaw Opening |
: |
32 mm. |
Calibration |
: |
Automatic self calibration |
Operating temperature |
: |
-15oC ~ 60oC |
Operating humidity |
: |
10% ~ 90%RH |
Weight of tester |
: |
1320g (inclusive of battery) |
Power supply |
: |
4 AAA alkaline dry battery (6V) |
Dimension of tester |
: |
293(L) x 90(W)mm, and thickness of 66mm |
Protection grade |
: |
double insulation |
Range selection |
: |
Automatic |
External Magnetic Field |
: |
< 40A/m |
External Electric Field |
: |
<1V/m |
Sampling Time |
: |
1 second |
Measurement Resistance Frequency |
: |
>1kHz |
Max. Resistance Measurement Resolution |
: |
0.001Ω |
Resistance Measurement Range |
: |
0.01 - 1000Ω |
Current Measurement Range |
: |
0.00 - 30.0A (KM 1720) |
Measured Current Frequency |
: |
Sinusoidal 50Hz (KM 1720) |
Storable Measurement Data |
: |
50 units (KM 1720) |
Setting range of Resistance Alarm Critical value |
: |
1 - 199Ω (KM 1720) |
Setting Range of current Alarm Critical Value |
: |
1 - 499mA (KM 1720) |
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