TB 9-6625-2232-35
Table 1. Calibration Description - Continued
Test instrument
parameters
Performance specifications
Ac voltage
Range: 0 to 700 V rms (in 4 ranges)
Accuracy: (% of reading + number of counts)3
Frequencies
20
to
30
Hz
0.402
+
656
30
Hz
to
20
kHz
0.122
+
856
20
to
50
kHz
0.222
+
1856
50
to
100
kHz
0.602
+
3056
100
to
250
kHz
5.052
+
6656
1AUTO
ZERO pushbutton on, FILTER off, and 10 PLC.
ZERO pushbutton on, FILTER off, 10 PLC, and 4 WRΩ (add 0.2Ω offset for 2 WRΩ measurements).
2AUTO
3AUTO ZERO pushbutton on, FILTER on, 10 PLC, >1% of FS, and dc component <10% of ac (for inputs
>500 V rms add 0.07% of reading). Frequencies >100 kHz are specified for 1 V and 10 V ranges only.
EQUIPMENT REQUIREMENTS
calibration procedure. This equipment is issued with Secondary Transfer Standards Set
AN/GSM-286. Alternate items may be used b the calibrating activity. The items
y
selected must be verified to perform satisfactorily prior to use and must bear evidence of
current calibration.
The equipment must meet or exceed the minimum use
specifications listed in table 2.
usage accessories, issued as indicated in paragraph 4 above, and are not listed in this
calibration procedure.
Manufacturer and model
Common name
Minimum use specifications
(part number)
Accuracy: (%)
CALIBRATOR
Dc voltage:
John Fluke, Model 5720A
100 mV
0.0034
(p/o MIS-35947); w/power
1
V
0.00265
amplifier, John Fluke Model
10
V
0.002575
5725A (5725A)
100 V
0.002675
1000 V
0.0056
Ac voltage range: 1 to 700 V
Frequency: 25 Hz to 250 kHz
Accuracy: (%)
Frequency (kHz)
Ac voltage
0.025
1
45
95
250
1V
0.1169
0.0519
0.1019
0.2269
1.4294
10 V
0.1169
0.0519
0.1019
0.2269
1.4294
100 V
0.1169
0.0519
0.1019
0.2269
---
700 V
---
0.0786
0.1393
0.2771
---
