TB 9-6625-2023-24
Table 2. Minimum Specifications of Equipment Required - Continued.
Manufacturer and model
Common name
Minimum use specifications
(part number)
CALIBRATOR
Range:
1 to 1000 V ac
Frequency: 30 Hz to 100 kHz
(r%)
Accuracy:
Frequency (Hz)
Volts
30
40
100
10 k
40 k
100 k
200 k
400 k
1M
0.1
---
---
0.05
---
---
---
---
---
---
1
0.03
---
0.03
---
0.1825 - - -
0.6
1.425
2.45
10
0.03
---
0.03
---
0.1825 - - -
0.6
1.425
2.45
100
0.03
---
0.03
---
0.1825 0.1825 - - -
---
---
1000
---
0.075
---
0.075
---
---
---
---
---
Capability to measure r10 PV dc and 1 V r10 PV ac
Hewlett Packard, Model 3458A
(3458A)
at 100 Hz
CALIBRATION PROCESS
6. Preliminary Instructions
a. The instruction outlined in paragraphs 6 and 7 are preparatory to the calibration
process. Personnel should become familiar with the entire bulletin before beginning the
calibration.
b. Items of equipment used in this procedure are referenced within the text by common
name as listed in table 2.
c. Unless otherwise specified, verify the result of each test and, whenever the test
requirement is not met, take corrective action before continuing with the calibration.
Adjustments required to calibrate the TI are included in this procedure. Additional
maintenance information is contained in the manufacturer's manual for this TI.
d. Most controls on the TI are of the light emitting diode (LED) type and are generally
referred to as keys. The center of each key contains an LED which illuminates to indicate
the control has been selected. The keys will be referred to as controls because they do not
function like pushbuttons (press and release). In addition, some of the controls will be
duplicated in a following check because there are cases when the controls are automatically
voided during operation.
e. Unless otherwise specified, all controls and control settings refer to the TI.
