SECTION III CALIBRATION PROCESS FOR SIMMONS PRECISION, INC. MODEL 472090-002

TB 9-4920-451-35

Table 2. Minimum Specifications of Equipment Required

Manufacturer and model

Common name

Minimum use specifications

(part number)

CAPACITANCE

Range: 2000 and 5000 Pf

Arco, Model SS32 (7907233)

STANDARD

Accuracy: +0.1%

Wayne-Kerr, Model 6425B

PRECISION

Capacitance-

COMPONENT

Range: 0.1 pF to 2000 µf

ANALYZER

Accuracy: ± 0.05 %

Range: 0.01Ω to 1,111,111Ω

RESISTANCE

Biddle-Gray Model

Accuracy: ±0.03% of indication

STANDARD (NO.1)

71-631 (7910328)

RESISTANCE

ICC, Model CR10M

Range: 100 KΩ to 10 MΩ

STANDARD (NO.2)

(8598965)

Accuracy: ±0.02%

RESISTANCE

ICC, Model CR100M

Range: 10 to 100 MΩ

STANDARD (NO.3)

(8598966)

Accuracy: ±0.05%

RESISTANCE

ICC Model CR1000M

Range: 1 to 1000 MΩ

STANDARD (NO.4)

Accuracy: ±1%

(6579478)

RESISTANCE

Penn-Airborne, Model

Range: 10,000 MΩ

STANDARD (NO.5)

Accuracy: ±3.5%

9A-5120-103 (MIS-10412-4)

VARIABLE

Range: 40 to 1000 pF

General Radio, Model 1422D

CAPACITOR

Accuracy: +0.1%

(8579475)

1100

to 1000 pF range: +0.6 pF.

SECTION III

CALIBRATION PROCESS FOR SIMMONS PRECISION, INC.

MODEL 472090-002

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.