TB 9-6625-357-35
Table 2. Calibration Description for Krohn-Hite Model 3202(R)
Test instrument parameters
Performance specifications
Power supply
105 to 125 V ac or 210 to 250 V ac; 50 to 400 Hz, 15 W
1
Frequency range
20 Hz to 2 MHz
5%, 20 Hz to 200 kHz; 10%, 200 kHz to 2 MHz, (response switch in
Cutoff frequency accuracy
max flat position)
24 dB 1.5 dB per octave
Rate of attenuation
0 .5 dB, 0 to 2 MHz; 3 dB at 10 MHz
Insertion loss
Less than 100 V for a detector bandwidth of 2 MHz, rising to 150 V
Noise and hum level
at 10 MHz
Maximum attenuation
Greater than 80 dB
1
This specification is for information only and is not verified in this bulletin.
EQUIPMENT REQUIREMENTS
calibration procedure. This equipment is issued with Secondary Transfer Calibration
Standards Set AN/GSM-286. 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 exceed the minimum use specifications
standard and TI. Where the four-to-one ratio cannot be met, the actual accuracy of the
equipment selected is shown in parenthesis.
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)
AUDIO ANALYZER
Distortion: 0.5%, 20 Hz to 70 kHz
Boonton, Model 1121 (1121)
AUTOTRANSFORMER
Range: 105 to 125 V ac
Ridge, Model 9020A (9020A),
Accuracy: 1%
FREQUENCY COUNTER
Range: 20 Hz to 3 MHz
Fluke, Model PM6681/656
Accuracy: 0.75%
(PM6681/656)
FUNCTION/ARBITRARY
Range: 20 Hz to 3 MHz
Agilent, Model 33250A (33250A)
Accuracy: .01%
Fluke, Model 8840A/AF05
Range: 0 to .1 V dc
Accuracy: .01%
(AN/GSM-64D)
Range: 0 to 1.06 V ac, 240 to 360 V dc
Accuracy: 1%
TRUE RMS VOLTMETER
Range: 0 to 2 Vac, 20 Hz to 2 MHz
Fluke, Model 8922A/AA
Accuracy: (3%)
(8922A/AA)
