Μa Range - Fluke 5730A Calibration Manual

5730A
Calibration Manual
μ
200 A Range
This test requires a 1000
5790A. It will be used with the levels and frequencies given in Table 18.
This shunt can be built from a non-inductive resistor such as a metal film
resistor housed in a box with dual banana jacks on one end and banana
plugs on the other end (Pomona 2259, 2098 or 2224). The resistor
should be of sufficient precision that its variations in resistance with time,
temperature, and humidity, plus the uncertainty of the calibration of the
shunt with the 5790A, will lead to a satisfactory TUR for the time between
calibrations. The box that contains the shunt should mount directly to the
5790A input 2.
1. Connect the equipment as shown in Figure 17.
2. Enter the Shunt ACI Corrections from the calibration certificate for the
3. Set the 5790A to Input 2, External Guard, and the range given in Table 18.
4. Set the Product to output the current level and frequency at the appropriate
5. Wait for the 5790A reading to settle and record it in the Table 18 5790A
6. Calculate the measured current and record in Table 18 under Measured
7. Verify that the results are within the given limits.
8. Repeat steps 3 through 7 for all tests.
9. Set the Product to STBY when the measurements are complete.
78
5790A/Shunt combination into the Table 18 5790A Shunt ACI Correction
(ppm) column.
output terminals as given in Table 18 for the test point being done and then
push .
Reading (Volts) column.
Current (Amps). See equation 2 in Table 18.
5790A
Shunt
Hi
1 kΩ
Input 2 Lo
Guard
Figure 17. 200 μA Range Alternating Current Test Setup
Note
Ω
shunt that has been calibrated with the
1 kΩ
12" Coax Cable
BNC to
Banana Adtper
Heavy Lead
5730A
hhp309.eps