TB 9-6625-173-24
Table 2. Minimum Specifications of Equipment Required.
Manufacturer and model
Common name
Minimum use specifications
part number)
CALIBRATOR
Dc voltage:
Fluke, Model 5720A (5720A) (p/o
Range: 0 to 12 V
MIS-35947); w/ amplifier, Fluke
Accuracy: 0.015%
5725A/AR (5725A/AR)
Dc current:
Range: 0 to 130 mA
Accuracy: 0.015%
Dc voltage:
Hewlett Packard, Model 3458A
Range: 0 to 12 V
(3458A)
Accuracy: 1.00%
CALIBRATION PROCESS
6. Preliminary Instructions
a. The instructions outlined in paragraphs 6 and 7 are preparatory to the calibration
process. Personnel should become familiar with the entire bulletin before beginning the
calibration.
b. Items of equipment used in this procedure are referenced within the text by common
name as listed in table 2.
c. Unless otherwise specified, verify the result of each test and, whenever the test
requirement is not met, take corrective action before continuing with the calibration.
Adjustments required to calibrate the TI are included in this procedure. Additional
maintenance information is contained in the manufacturers' manuals for this TI.
d. Unless otherwise specified, all controls and control settings refer to the TI.
7. Equipment Setup
HIGH VOLTAGE is used or exposed during the performance of
this calibration.
DEATH ON CONTACT may result if
personnel fail to observe safety precautions.
REDUCE
OUTPUT(S) to minimum after each step within the
performance check where applicable.
a. If not already installed, download the PC-200 software from the Campbell Scientific
Inc. web site and install it on a PC or use the CR1000KD if supplied with TI.
b. Type in program #4 in appendix A and save it as Rangetst.CR1.
c. Connect DC power supply to POWER IN on the TI.
d. Using a computer interface, retrieve existing programs and final storage data.