1630
Earth Ground Clamp
6
Accuracy Tests
Accuracy specifications are valid for one year after calibration when measured at an operating
temperature of 18 °C to 28 °C. Allow the UUT to stabilize at room temperature before
performing the accuracy tests.
To verify the accuracy of the UUT functions, complete the following steps:
1. Connect a 6-inch diameter loop of wire across the output terminals of the decade resistor
box.
2. Turn the UUT rotary switch from OFF to O and verify the UUT displays CAL 7, 6,
5…CAL 1 and a single beep is heard.
3. Set the decade box for the Applied Value in Table 3, steps 1-4, and clamp the UUT
around the wire loop at the output terminals.
4. Compare the displayed reading with Display Reading Limits.
5. Continue accuracy tests for the other functions listed in Table 3. If any display readings
fall outside of the Display Reading Limits in Table 3, the UUT requires calibration
adjustment or repair. See Contacting Fluke.
Table 3. 1630 Accuracy Tests
Step
UUT
Function
Source Applied Value
Display Reading
Limits/Instruction
1
1 Ω
0.935 to 1.065
2
9 Ω
8.765 to 9.235
3
12 Ω
11.52 to 12.48
4
90 Ω
88.15 to 91.85
5
110 Ω
105.7 to 114.3
6
200 Ω
193.0 to 207.0
7
400 Ω
375.0 to 425.0
8
600 Ω
530.0 to 670.0
9
O
Decade Resistance Box
and 6-in. diameter wire
loop
1100 Ω
880.0 to 1320.0
10 0.3 mA, 60 Hz 0.244 to 0.356
11 0.9 mA, 60 Hz 0.832 to 0.968
12 1.1 mA, 60 Hz 1.05 to 1.15
13 9 mA, 60 Hz 8.79 to 9.21
14 11.0 mA, 60 Hz 10.5 to 11.5
15 90 mA, 60 Hz 87.9 to 92.1
16 110 mA, 60 Hz 105 to 115
17
~ mA
900 mA, 60 Hz 879 to 921
18 0.3 A, 60 Hz 0.264 to 0.336
19 3 A, 60 Hz 2.910 to 3.090
20
Calibrator and 6-in.
diameter wire loop
4.2 A, 60 Hz 4.09 to 4.31
21
~ A
Calibrator and 3 turns of
copper magnet wire,
6-in. diameter
10 A, 60 Hz 29.37 to 30.63
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General
Weight and Dimensions
