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ASTM Digital Earth Resistance Tester,
ASTM Surface Resistance Meter
VICTOR 385 Digital Earth Resistance Tester Surface Resistance Meter ASTM Standard
VICTOR 385 Surface Resistance Meter electronic components Electrostatic Instrument Static Detector Insulation Resistance Tester
It is a surface or surface grounding resistance tester. According to ASTM standard D-257 parallel electrode sensing way to do the surface resistance test. It can simply and repeatedly test various types of the surface, such as conduction type, release type and insulating surface.
103=1KΩ GREEN LED
104=10KΩ GREEN LED
105=100KΩ GREEN LED
106=1MΩ GREEN LED
107=10MΩ GREEN LED
108=100MΩ GREEN LED
109=1000MΩ GREEN LED
1010=10000MΩ GREEN LED
1011=100000MΩ GREEN LED
1012=1000000MΩ RED LED
>1012=INSULATION RED LED
3, Earthing resistance test
Insert the earth wire into the ground socket, so that it is insulated from the right side of the meter (with the same side of the socket) and the alligator clamp is connected to the earth wire. Place the meter on the surface of the object, and hold the "TEST" button, and continue lighting LED indicating the magnitude of the earthing resistance. The unit of measurement is Ω.
This meter need a calibration every 12 months, use a decade resistance box, put the standard resistance bridged between the two parallel electrodes of the meter to see if the indication is within the target range. Or you can send the meter back to our factory and do the calibration.
The transition point of impedance value is 0.5 logarithm (i.e. 3.16*10n). The linear value of the transition point is (+10%) of the median value of each measuring range.
VICTOR 385 Grounded Resistance Tester
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