Chapter 1. INTRODUCTION

TM 11-6625-2724-12

CHAPTER 1

INTRODUCTION

Section I. GENERAL

1-1. Scope

Equipment.

Maintenance forms, records, and

reports which are to be used by maintenance per-

This manual describes Voltmeter, Electronic ME-

sonnel at all maintenance levels are listed in and

202C/U (voltmeter) and covers its installation,

prescribed by TM 38-750.

operation, and maintenance. It includes instructions

b. Report o f P a c k a g i n g a n d H a n d l i n g

for operation, cleaning, and inspection of the

Deficiencies. Fill out and forward DD Form 6

e q u i p m e n t . As an aid to the operator and

(Packaging Improvement Report) as prescribed in

organizational maintenance personnel, a limited

700-58/NAVSUPINST

4030.29/AFR

71-

discussion on the functioning of the equipment is

13/MCO P4030.29A and DSAR 4145.8.

given in chapter 5. Maintenance tasks are not

c. Discrepancy in Shipment Record (DISREP)

authorized at the direct support or general support

(SF 361). Fill out and forward Discrepancy in

levels. All repair is authorized at the depot level

Shipment Report (DISREP) (SF 361) as prescribed

only.

in AR 55-38/NAVSUPINST 4610.33A/ARC 75-

1-2. Indexes of Publications

18/MCO P461O.19B and DSAR 4500.15.

a. DA Pam 310-4. Refer to the latest issue of DA

1-4. Administrative Storage

Pam 310-4 to determine whether there are new

For procedures, forms and records, and inspections

editions, changes, or additional publications per-

required during administrative storage of this

taining to the euqipment.

equipment, refer to TM 740-90-1.

b. DA Pam 310-7. Refer to DA Pam 310-7 to

determine whether there are modification work

1-5. Destruction of Army Electronics Materiel

orders (MWO's) pertaining to the equipment.

Destruction of Army electronics materiel to prevent

1-3. Forms and Records

enemy use shall be as prescribed in TM 750-244-2.

a. Reports of Maintenance and Unsatisfactory

Section II. DESCRIPTION AND DATA

1-6. Purpose and Use

a frequency range of 5 Hertz (Hz) to 100 Kilohertz

(kHz).

(fig. 1-1)

The voltmeter is used for accurately measuring

1-8. Tabulated Data

direct current (dc) and alternating current (ac)

Technical data for Electronic Voltmeter ME-202C/U

voltage levels. The dials of the instrument permit

is as follows:

measurements to be resolved to 5 digits. The

NOTE

voltmeter is equipped with a recorder (dc) output

All specifications apply to differential mode

which may be connected to auxiliary meters or strip-

of operation unless otherwise specified.

chart recorders.

a. Input:

(1) Ranges. 1, 10, 100, 1000 VAC and ±DC,

1-7. Description

each with 10% overranging capability.

The voltmeter is a solid state type with the ac

(2) Dc resistance. Infinite at null from 0 to

voltage readout calibrated in terms of the root-mean-

1100 vdc.

square (rms) voltage of a sine wave. The instrument

(3) Ac impedance. 1 megohm, 20 picofarads

is capable of measuring + or - dc and ac voltages

(pf).

from 1 volt full scale to 1,000 volts full scale through

1-1