TB 9-6625-2271-50
EQUIPMENT REQUIREMENTS
4. Equipment
Required. Table 2
identifies the
specific equipment to be
used in this
calibration procedure. This equipment is issued with Secondary Reference Calibration
Standards Set NSN 4931-00-621-7878. 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 listed in table 2. The accuracies listed in table 2 provide a four-to-one ratio
between the standard and TI.
5. Accessories Required. The
accessories required for the
calibration are common usage
accessories, issued as indicated in paragraph 4 above and are not listed in this calibration
procedure.
Table 2. Minimum Specifications of
Equipment Required
Minimum use
Manufacturer and model
Common name
specifications
(part number)
John Fluke, Model 5790A
AC MEASUREMENT
Range: 20 Hz to 120 kHz
STANDARD
(5790A)
2.97 mV to 16.256 V
Accuracy: .125%
John Fluke, Model 5720A/CT
CALIBRATOR
Range: 3 to 300 V dc
(p/o MIS-35947); w/power
Accuracy: 0.2755%
amplifier, John Fluke, Model
Range: 20 Hz to 100 kHz, 30 mV to 300 V
5725A (5725A
Accuracy: .25%
Range: 220 Hz , 1 mV
Accuracy: .2.5%
ACV range: 20 Hz to 100 kHz, 1 mV to 3 V rms
Hewlett-Packard, Model
3458A/E02 (3458A/E02)
Accuracy: 0.175%
Range: 20 Hz to 140 kHz
John Fluke, Model PM6681/656
(PM6681/656)
Accuracy: 2.5 ppm
SPECTRUM ANALYZER1
Range: 1 kHz <-75 dBm
Hewlett-Packard, Model 3585A
(MIS-35951)
SYNTHESIZER/FUNCTION
Agilent, Model 33250A (33250A)
0.25 dB @ 1200 Hz
Attenuator Accuracy:
0.5 dB @ 80 kHz
TIME & FREQUENCY
Range: 10 MHz
Datrum, Model 9390-6000
(9390-6000)
Accuracy: 0.25 ppm
1Used
only for adjustments.