AEMC 4500 - Operation and Measurement; Grounding Resistance Principles and Factors

Digital Ground Resistance Tester Model 4500 13
Table4showsthemaximumresistanceofthecurrentcircuit(Rx+Rz)for
strayvoltageof10Vpeak-to-peak.
Range
Current
50 mA
10 mA
2 mA
Rx + Rz = 400Ω max
Rx + Rz = 3000Ω max
Rx + Rz = 15 kΩ max
2 Ω 20 Ω 200 Ω 2 k
Ω
20 k Ω
Do not use
Table 4
3.6 Mechanical Specifications
Display:
2000-count,7segmentLCD,.71"(3-1/2digit)
Connection:
Viaterminals(wires;forkedlugswithmingapof6mm)bananajackswith
Ø 4mm
Operating Temperature:
14°to122°F(-10°to50°C)
Case:
Heavy-duty plastic, with detachable cover and carrying handle
Colors:
Case - Safety yellow; Front Panel - Brown
Dimensions:
15.75x10.2x9.8"(400x260x250mm)
Weight:
14lbs(6.5kg)approximate