TB 9-6625-2270-35
Table 1. Calibration Description - Continued
Test instrument parameters
Performance specifications 1 (4 1/2 digit display)
Range: 0 to 20 MΩ (in 6 ranges)
Resistance
(% of reading + digits)
Accuracy:
200Ω through 2.0 MΩ ....... 0.1 + 1
Range:
20 MΩ ................................... 0.2 + 2
1Specifications
are based on procurement specifications and may not agree with manufacturer's or technical manuals.
2Volts/hertz
product not to exceed 107.
3Ac current verified during dc current check since same shunt resistors are utilized for both functions.
EQUIPMENT REQUIREMENTS
4. Equipment
Required. Table 2 identifies the
specific equipment to be
used in
this
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
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 this
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
Common
Manufacturer and model
name
Minimum use specifications
(part number)
CALIBRATOR
Dc voltage:
John Fluke, Model 5720A/CT (p/o
Range: .19 to 1000 V
MIS-35947), w/power amplifier,
Accuracy: .016 %
John Fluke, Model 5725A/CT
Ac voltage:
(5725A/CT)
Range: 190 mV to 750 V
Accuracy: (%)
Voltage
Frequency
100 mV through 190 V .....20 Hz to 50 kHz............ .566
750 V
......................40 Hz to 10 kHz............ .667
200
......................50 kHz1.......................... 1.125
Dc current:
Range: 189.61 A to 1.9097 A
Range: 190Ω to 19 MΩ
Accuracy: (%)
190Ω through 1.9 MΩ ....................... .026
19 MΩ
........................................... .052
dBm:
Range: -55 to +30 dBm
Accuracy: (dBm)
-55 to -10 .............. .125
+15 and +30......... .0625