TB 9-6625-2193-24
IDENTIFICATION AND DESCRIPTION
1. Test Instrument Identification.
This bulletin provides instructions for the
calibration of True RMS Voltmeter ME-545/G (Racal-Dana, Model 5002-S-8040).
TM 11-6625-3200-14 and the manufacturer's manual were used as the 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. None.
b. Time and Technique. The time required for this calibration is approximately 1.5
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 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.
Table 1. Calibration Description
Test
instrument
Performance specifications
parameters
Range: 100 V to 316 V rms
Ac voltage
Frequency: 10 Hz to 20 MHz1
Frequency
Accuracy
10 Hz to 49.99 Hz
5.0
%
50 Hz to 99.9 kHz
1mV
3.0
%
<1mV
5.0
%
%2
100 KHz to 999.9 kHz
5.0
%2
1.0 MHz to 9.99 MHz
10.0
%2
10 MHz to 20 MHz
15.0
V range only checked at 50 Hz and 1 kHz (calibration points of DT72A Ratio Transformer), 10.00 V and 31.62 V
1100
ranges not checked above 1 MHz, 100.0 V range not checked above 500 kHz, and 316.2 V range not checked above
100 kHz due to standards limitations.
2Volts-Hertz product not to exceed 100M, (5 V max @ 20 MHz).
