TB 9-4931-217-40
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Page
10,000 ohm decade linearization .........................
100,000 ohm decade linearization.......................
Multiplier ..............................................................
Final procedure ....................................................
IDENTIFICATION AND DESCRIPTION
1. Test Instrument Identification.
This bulletin provides instructions for the
calibration of Resistance Bridge, ESI Model 230B; Ac Generator Detector, ESI Model 860A;
Generator detector, ESI Model 801; and Kelvin Resistance Bridge, ESI Model SP2979. The
manufacturers' manuals were used as prime data sources in compiling these instructions.
The equipment being calibrated will be referred to as the TI (test instrument) throughout
this bulletin.
a. Model Variations. Variations among models are described in text.
b. Time and Technique.
(1) The technique used in calibrating the TI is the dc (direct current) and low frequency
technique.
(2) The approximate time required to calibrate each TI is listed in (a) through (g) below:
(a) Model 230B...................
3 hours
(b) Model 860A...................
2 hours
(c) Model 865A ...................
3 hours
(d) Model 290A...................
5 hours
(e) Model 290B ...................
5 hours
(f) Model 801......................
3 hours
(g) Model SP2979...............
5 hours
2. Forms, Records, and Reports
a. Forms, records, and reports required for calibration personnel at all levels are
prescribed by TB 750-25.
b. Adjustments to be reported are designated (R) at the end of the sentence in which
they appear. When adjustments are in tables, the (R) follows the designated adjustment.
Report only those adjustments made and designated with (R).
3. Calibration Description. TI parameters and performance specifications, which
pertain to this calibration, are listed in table 1.