
i1000s Calibration Manual Supplement
7/01 1
Change #1
On page 8, Table 4, under Recommended Model,
Replace:
Digital Multimeter Hp 3458A or equivalent
With:
Digital Multimeter Agilant 3458A or equivalent
Delete the following from Table 4,
AC/DC Shunt IET Labs-DCCS-200 0.1e- 0.1% non-inductive
Replace the entire
Phase Shift
section, Table 5 and Figure 3 with the following:
Phase Shift Test
To check Phase Shift performance, set up the equipment as shown in Figure 3.
1. Center the Current Probe around the coil.
2. Set the calibrator output to 1V (phase meter reference input), 1A and 50 Hz, per step 1 of Table 5.
Performance Test Steps.
3. Verify that the phase meter reading is within the “Phase in Deg” limits of Table 5.
Table 5. Performance Test Steps
i1000s
mV Output Phase in Deg.
Step Coil Range 5520A
Output
5500A
Coil
I. Prim. Freq. Min. Max. Min. Max.
1 50 turn 1 mV/A 1 A 50.0 A 50 Hz 48.5 51.5 -3.0 3.0
2 50 turn 1 mV/A 2 A 100 A 400 Hz 98.0 102.0 N/A N/A
3 50 turn 1 mV/A 4 A 200 A 60 Hz 197.0 203.0 -2.0 2.0
4 50 turn* 1 mV/A 14 A 700 A 50 Hz 692.0 708.0 -2.0 2.0
5 1 turn 10 mV/A 5 A N/A 50 Hz 44.0 56.0 -15.0 15.0
6 50 turn 10 mV/A 0.4 A 20 A 50 Hz 191.0 209.0 -10.0 10.0
7 50 turn 10 mV/A 2 A 100 A 50 Hz 975.0 1025.0 -10.0 10.0
8 1 turn 100 mV/A 0.50 A N/A 50 Hz 38.5 61.5 N/A N/A
9 1 turn 100 mV/A 2.00 A N/A 50 Hz 184.0 216.0 -15.0 15.0
10 1 turn 100 mV/A 10 A N/A 50 Hz 960.0 1040.0 -15.0 15.0
* 700 A/ 50 Hz in 1 mV/A range has a TUR of 3.3
4. Continuing to use 1V as the phase meter reference input, set the calibrator output for the remaining
steps listed in Table 5. Steps 2 and 8 do not require phase tests.
5. Verify that the phase meter readings meet the "Phase in Deg" limits for each step.