User Guide

36 Clamp-on Ground Resistance Tester Model 6416
7.2.5 Power Supply
■ 4x1.5V LR6 (AA) alkaline batteries or 4 NiMH batteries
■ Battery Consumption: 140mA approx
■ Battery Life: 12 hours, or 1440 30-second measurements approx
NOTE: Extreme environmental conditions may interfere with the internal
microprocessor. Simply disconnecting the battery may be enough to eliminate
this malfunction.
7.3 Environmental
Quantity of
Influence
Limit of
the Domain
Quantities
Influenced
Typical
(3)
Max
(3)
Temperature
-4° to 131°F
(-20° to 55°C)
A, W
(1)
, Uc 1 P/10°C +r 2 P/10°C +r
Relative humidity 10% to 90% RH A, W
(1)
, Uc P+r 3 P+r
Battery voltage 4 to 6.5V A, W
(1)
, Uc 0.1 P+r 0.25 P+r
Position of
conductor
From the edge to
the center
A, Uc, W
(1)
0.1 P+r
0.05 P+r
0.2 P+r
0.1 P+r
Position of clamp ±90°, 180° A, Uc, W
(1)
0.2 P+r
0.1 P+r
0.4 P+r
0.25 P+r
Proximity to
magnetic mass
Steel sheet 1mm
thick against air gap
A, W
(1)
, Uc 0.1 P+r 0.5 P+r
Magnetic field at
50/60Hz
30A/m A, Uc
2mA
(2)
0.1 P+r
4.5mA
(2)
0.5 P+r
Frequency of
the current
47 to 800Hz A, Uc P+r 2 P+r
Leakage current
at 50/60Hz
I<10A
R x I<50V
W
(1)
2 P+r 8 P+r
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7.4 Mechanical
Jaw Opening: 1.38" (35mm) max
Dimensions: 2.16 x 3.74 x 10.31" (55 x 95 x 262mm)
Weight: 2.06 lbs (935g) approx. with batteries
Environmental: IP40, group III equipment
Drop Test: According to IEC-61010-1