TB 9-6625-2189-24
Table 1. Calibration Description - Continued
Performance specifications
Test instrument parameters
5 1/2 digit display @ S reading rate
Accuracy
20 Hz
to
45
Hz
(1.2 % + 100 counts)
Ac voltage1
45 Hz
to
100
Hz
(0.35% + 100 counts)
200 mV 1000V
100 Hz
to
20 KHz
(0.14% + 100 counts)
20 KHz
to
50 KHz
(0.19% + 150 counts)
50 KHz
to
100 KHz
(0.5 % + 300 counts)
Input
Accuracy
Dc current
1A
(0.04% + 4 counts)
2000 mA range
>1A
(0.1 % + 4 counts)
Accuracy
Ac current
20 Hz
to
45 Hz
(2.0% + 200 counts)
2000 mA range
45 Hz
to
100 Hz
(0.5% + 200 counts)
100 Hz
to
5 KHz
(0.4% + 200 counts)
Range
Accuracy
200
(0.011% + 4 counts)
2K
(0.01 % + 3 counts)
20 K
(0.01 % + 3 counts)
(0.01 % + 3 counts)
200 K
2000 K
(0.027 % + 3 counts)
20 M
(0.043 % + 4 counts)
Reference Voltage
Accuracy
Ratio3
10.0 19.9999 V
(0.01% + 5 counts)
1.0 9.9999 V
(0.01% + 5 counts) x (10/Vref)
Maximum input: Model AN/GSM-64D and 8840A/AF 1000 V rms or 2 x 107 Volts-Hertz product (whichever is
1
less); model 8840A w/opt09 700 V rms, or 2 x 107 Volts-Hertz product (whichever is less).
2Resistance 2-wire and 4-wire ohms using offset function.
3AN/GSM-64D and Fluke 8840A/AF Models only.
EQUIPMENT REQUIREMENTS
calibration procedure. This equipment is issued with Secondary Transfer Calibration
Standards Set AN/GSM-286, AN/GSM-287 or AN/GSM-705. Alternate items may be used
by the calibrating activity. The items selected must be verified to perform satisfactorily
prior to use and must bear evidence of current calibration. The equipment must meet or
provide a four-to-one ratio between the standard and TI. Where the four-to-one ratio
cannot be met, the accuracy of the equipment selected is shown in parenthesis.
5 Accessories Required. The accessories required for this calibration are common
usage accessories, issued as indicated in paragraph 4 above, and are not listed in this
calibration procedure.