TB 9-6625-1014-24
Final procedure ....................................................
CALIBRATION PROCEDURE FOR ESI,
MODEL 250DE
Preliminary instructions......................................
Equipment setup ..................................................
LRC dials ..............................................................
QX1 rheostat.........................................................
Resistance .............................................................
Oscillator...............................................................
Capacitance ..........................................................
Dissipation ............................................................
Final procedure ....................................................
IDENTIFICATION AND DESCRIPTION
1. Test Instrument Identification.
This bulletin provides instructions for the
Universal Impedance Bridge, Electro-Scientific Industries (ESI), Model 250DE. The
manufacturer's manual was used as prime data source 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. The time required for this calibration is approximately 12
hours, using the dc and low frequency technique.
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 adjustments.
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.