22
Clamp-On Ground Tester Model 6418
3.4. POWER SUPPLY
The instrument is powered by four 1.5V AA batteries (LR6 alkaline; NiMH
rechargeable can also be used). The voltage range ensuring proper
operation is 4 to 6.5V. The battery life of the instrument is 12 hours
(approximately 1440 30-second measurements).
3.5. ENVIRONMENTAL CONDITIONS
The conditions of ambient temperature and relative humidity are
illustrated in the following graph:
%RH
1 = Domain of reference
2 = Domain of use
3 = Domain of storage
without batteries.
Indoor use
Altitude <6500’ (<2000m)
Pollution degree 2
3.6. MECHANICAL CHARACTERISTICS
Dimensions (L x W x H): 11.8 x 4.2 x 2.2” (300 x 106 x 56mm)
Weight: approximately 2.6 lb (1.2kg)
Clamping diameter: 1.26” (32mm) or a 1.18 x 1.57” (30 x 40mm) or 0.79
x 2.17” (20 x 55mm) bar
Ingress protection: IP40 per IEC 60529
