TB 9-6625-2252-35
IDENTIFICATION AND DESCRIPTION
1. Test Instrument Identification.
This bulletin provides instructions for the
calibration of Electronic Voltmeter ME-202C/U. TM 11-6625-2724-12 was used as the
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. None.
b. Time and Technique. The time required for this calibration is approximately 1
hour, 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.
Test instrument parameters
Performance specifications1
Dc and ac volts (TVM)
Range: 0 to 1000 V
Accuracy: 3.0% of reading
Dc volts (differential mode)
Range: 0 to 1000 V
Accuracy: 0.05% of reading
Ac volts (differential mode)
Range: 0 to 1000 V, 200 Hz to 20 kHz
Accuracy: 0.2% of reading
1Derated
to accuracy specified.
EQUIPMENT REQUIREMENTS
4. Equipment
Required. Table 2
identifies the
specific equipment to be
used in this
calibration procedure. This equipment is issued with Secondary Transfer Calibration
Standards Set AN/GSM-286. Alternate items may be used by the calibrating activity. The
items selected must be verified to perform satisfactorily prior to use and must bear evidence
of current calibration. The equipment must meet or exceed the minimum use specification
listed in table 2. The accuracies listed in table 2 provide a four-to-one ratio between the
standard and TI.