Fluke 5730A, Руководство по калибровке, Страница: 76 / 104

5730A
Calibration Manual
66
DC Voltage Test at 19 Volts
1. For this test, connect the 10 V standard to the 8508A as shown in Figure 12.
2. Record the value of the 10 V standard in Table 10. Record it as a negative
voltage for the -19 V test.
3. Set the 8508A to dc V, 20 V range, 7 digits, filter “IN” and "FAST" mode. Be
sure the 8508A is on internal guard (external guard not selected).
4. Wait for the reading to settle and record it in Table 10.
5. Connect the Product to the 8508A as shown in Figure 12.
6. Set the Product to 19 V dc and push

.
7. Wait for the reading to settle and record it in Table 10. Push

.
8. Connect the 8508A to the 10 V standard but reverse the connection to the HI
and LO so the 8508A reads -10 V.
9. Wait for the reading to settle and record it in Table 10.
10. Connect the Product to the 8508A as shown in Figure 12.
11. Set the Product to output -19 V and push

.
12. Wait for the reading to settle and record it in Table 10. Push

.
13. Calculate the measured voltage of the Product for each polarity and verify
that it is within limits.
Table 10. 19 V DC Verification
Product
Range
Product
Output
10 V
Standard
Value
(Vstd)
DMM
Reading
On 10 V
Std (Vdmm
at 10 V)
DMM
Reading
on Product
(Vdmm at
19 V)
Calculated
Product
Output
Limits
22 V +19 V
±
62
μ
V
22 V -19 V
±
62
μ
V
Product=5730A
DMM=8508A
Calculated Product Output =
V 10 at Vdmm
V 19 at Vdmm
Vstd