Fluke A3003 FC, Руководство по калибровке

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a3003 FC/a3004 FC
Calibration Manual
18
2000 mA Clamp Calibration Adjustment
Do the balance adjustment and then do the calibration adjustment.
To do the balance adjustment:
1.
Follow the instructions to enter Maintenance mode (see Start Maintenance Mode ) and then:
a. Wait 20 seconds for the Meter to warm up.
b. Push

until JC shows on the display.
c. Follow the steps in Enter the Password until b-UP shows on the display.
2. For each value in Table 7:
a.
Apply the Calibrator Output value to the Meter.
b. Wait 4 seconds for the signal to stabilize.
c. Push

to confirm the calibration step.
3. On the 5522A, set the 12 A dc output to the 50-turn 1 kA coil and place the clamp on it.
4. Push

, until b-UP shows, then move the jaw and locate the coil center in the top area of the jaw.
5. Push

, until b-do shows, then move the jaw and locate the coil center in the bottom area of the jaw.
6. Repeat the previous two steps until 0 A shows.
When 0 A shows on the display the balance adjustment passes. Continue with the calibration.
To do the calibration adjustment:
1.
Move the jaw to the 3 kA coil.
2. 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 Current Mode input, with the 120 A range. Put the 52120A in Local Control mode.
3. Push

on the Meter.
4. For each value in Table 8:
a.
Apply the Calibrator Output value to the Meter.
b. Wait 4 seconds for the signal to stabilize.
c. Push

to confirm the calibration step.
If Err shows on the Meter when you push

, the internal measurement is working and the result is not ready.
Wait for 1 minute.
If
out shows on the Meter, the internal measurement is out of range. Check the input signal and correct it.
Table 8. Calibration Specifications 2000 A Clamp
Display Output to 3KA coil
From 5522A [1]
0A 0 A 0 mA
C-01 10 A 0.4 mA
C-02 1000 A 40 mA
C-03 2000 A 80 mA
H-0A 0 A 0 mA
C-04 -10 A -0.4 mA
C-05 -1000 A -40 mA
C-06 -2000 A -80 mA
[1]: Manually adjust the current signal from the 5522A to drive the high current from 52120A.