Fluke A3003 FC, Руководство по калибровке

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Wireless DC Clamp
Performance Tests
13
All readings must meet 100 % of specification, see Table 4. If the Product fails any part of the performance test,
calibration adjustments are required. See
Calibration . If the Product continues to fail, contact Fluke for repair. See
Contact Fluke .
2000 A Clamp Performance Test
Do the performance test periodically and after calibration and the balance test.
To do the performance test:
1.
Make sure you have the required equipment. See Table 2.
2. Connect the equipment. See Figure 6.
3. Power on all the equipment and set the parameters:
•
On the 5522A, put in the Standby state with 0

A output.
• On the 52120A put in the Current Mode, with the 120 A range. Put in the Local Control mode.
4. Push

on the Meter.
5. For each value in Table 5:
a.
Zero the Meter.
b. Apply the Calibrator Output value to the Meter.
c. Wait 4 seconds for the signal to stabilize.
d. Record the reading.
All readings must meet 100 % of the specification.
Table 4. Performance Specifications for the 4-20 mA Clamp
Test
(Function)
Calibrator Outputs
Meter Response
Lower Limit Upper Limit
mA dc
90 mA 88.6 91.4
20 mA 19.91 20.09
4 mA 3.94 4.06
-4 mA -4.06 -3.94
-20 mA -20.09 -19.91
-90 mA -91.4 -88.6
Table 5. Performance Specifications for the 2000 A Clamp
Test
(Function)
List
Calibrator Output (mA)
From 5522A
Meter Response (mA)
Lower Limit Upper Limit
A dc
1.0 0.04 0.48 1.52
50.0 2.0 48.5 51.5
300.0 12.0 293.5 306.5
950.0 38.0 930.5 969.5
1050 42.0 1019 1081
1500 60.0 1458 1543
2000 80.0 1945 2055
-A dc
-1.0 -0.04 -2.0 0.0
-50.0 -2.0 -52 -49
-300.0 -12.0 -307.0 -294
-950.0 -38.0 -970 -931
-1050 -42.0 -1081 -1019
-1500 -60.0 -1543 -1458
-2000 -80.0 -2055 -1945