TB 9-6625-2296-35
5. Accessories Required. The accessories listed in table 3
are issued as
indicated in
paragraph
4 above and are used in
this calibration procedure. When necessary, these items may be
substituded by equivalent items, unless specifically prohibited.
Table 2. Minimum Specifications of
Equipment Required
Manufacturer and model
Common name
Minimum use specifications
(part number)
AUDIO ANALYZER
Distortion capability: ≤-10 dB distortion
Boonton, Model 1121 (1121)
.5% to 5.0%
10 Hz to 40 kHz
Audio source: 2 V p-p 50 Ω
600 to 2800 Hz
Accuracy: 3%
CALIBRATOR
Ac volts:
Fluke, Model 5720A
Range: 180 mV to 470 V
(5700A/EP) (p/o MIS-35947);
100 Hz to 20 kHz
w/amplifier, Fluke, Model
Accuracy: 1.28 %
5725A/AR (5725A/AR)
Dc volts:
Range: 190 mV to 980 V
Accuracy: .276%
Dc current:
Range: 18 mA to 1.8 A
Accuray: 1.4%
Range: 80 Ω to 18 MΩ
Accuracy: 1.4%
Ac volts:
Hewlett-Packard, Model 3458A
Range: 20 Hz to 25 kHz
(3458A)
1 mV to 2.5 V rms
Accuracy: 25 mV or .75% <10 kHz
1.25% >10 to 25 kHz
Dc volts:
Range: 4.096 to 35 V dc
Accuracy: (.0006 %) .005%
FREQUENCY COUNTER
Fluke, Model PM 6681/656
Accuracy: 0.125 ppm
(PM 6681/656)
Agilent, Model 33250A (33250A)
FUNCTION/ARBITRARY
Accuracy: 5%
Resolution: .1 Hz
Attenuators: 0.25%
-7 to +13.01 dB and 1 V p-p
CHANGE 3