IDENTIFICATION AND DESCRIPTION

TB 9-6625-2252-35

SECTION I

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.

Table 1. Calibration Description

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.