SECTION III CALIBRATION PROCESS - TB-9-6625-2013-500003

TB-9-6625-2013-50 Decade Resistance Standard Biddle Model 71-650 Manual
Page Navigation
3

TB 9-6625-2013-50

5. Accessories Required. The accessories required for this calibration are common

usage accessories issued as indicated in 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)

MULTIMETER

Hewlett-Packard, Model 3458A

Range: 10 mΩ to 1.2 MΩ

(3458A)

Accuracy: +.025 mΩ; 1Ω and lower

+.0025%; 1Ω to 1 MΩ

STANDARD RESISTOR Range: 10,000Ω

Leeds and Northrup, Model 4040B

(8616293)

Accuracy: +5 ppm w/test report

SECTION III

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 manufacturer's manual for this TI.

d. Unless otherwise specified, all control and control settings refer to the TI.

7. Equipment Setup

a. Utilizing standard resistor, characterize multimeter to obtain 24-hour manufacturer

specifications for resistance.

b. Turn each decade dial throughout its entire range at least three times.

c. Connect multimeter in a four-wire measurement configuration to TI.

8. Minimum Resistance Check

a. Performance Check

(1) Set TI decade dials to 000000.0100.

(2) Multimeter will indicate between 0.0090Ω and 0.0110Ω.

b. Adjustments. No adjustments can be made.