Simpson 653 Service manual

OPERATOR'S

MANUAL

TRANSISTOR TESTER,Model

Beta Ranges: 0-10, 0-50, 0-250, (F.S.)
Beta Accuracy: ±3%, with 260 ±5% nominal
lea Range: 0- 100 ua
lea Accuracy: ± 1%, with 260 ± 3% (F.S.)

DC VTVM, Model

Voltage Ranges: 0-.5/1.0/2.5/5.0/10/25/50/100/

250/500
Accuracy: ± 1%, with 260 ± 3% (F.S.)
Input Impedance: greater than 10 megs all ranges

TEMPERATURE TESTER,Model

Temperature R.anges: -50°F to +1000F, +100°F to

+250°F

Accuracy: with 260 ±2° (nominal)
Three lead positions provided
Sensing Element: thermistor

AC AMMETER, Model

Ranges: 0-0.25/1/2.5/12.5/25 amps
Accuracy:±1

Frequency Range: 50 cycles to 3000 cycles

AUDIO WATTMETER, Model

Load Ranges: 4,8,16,600 ohms
Wattage: Continuous 25 watts (8,600 ohms)

Accuracy: ±5%, with 260 ±10% nominal

Direct reading scale from 17 microwatts to 100 watts

MICROVOLT ATTENUATOR, Model

Ranges: 2.5 microvolts to 250,000 microvolts

continuously variable in decade steps
Frequency: DC to 20 KC
Accuracy: ± 1db

BATTERY TESTER,Model

Checks all radio and hearing aid batteries up to 90

volts at the manufacturer's recommended load, or

any external load.

Note: All Simpson 260 Adopters provide for normal 260

usage without disconnecting the adapter.

651.. .. . . . .

%

t

with 260±3%nominal

Intermittent 50 watts (8,600 ohms)

50 watls (4,16 ohms)

100 watts (4,16 ohms)

653

654. .. .

656.

650.....

652 ...

$26.95

$32.95

$38.95

$18.95

$18.95

655. $18.95

$19.95

AC AMMETER

MODEL

Just plug it in

IIMPIOR ELECTRIC COMPARY

5200 W.

Kinale St.. Chlca90

In Ccmada. Iach·Slm_n. Ltd.. London. Ontario

Copyright 1959, Simpson Electric Co.

1-2.!5M-l0-!59

653

44.

IIUnola.

Printed in U.S.A.

ES 9-1121

OPERATOR'S MANUAL

SIMPSON AC AMMETER MODEL 653

SECTION I

GENERAL DESCRIPTION

INTRODUCTION

The Simpson AC Ammeter Adapter Model 653

IS

a compact, accurate, wide-range instrument.

When it is used in conjunction with a Simpson

260*or270

ured over a frequency range of 50 to 3000 cycles
per second. This wide frequency range in general
exceeds commercial and military power frequency
requirements.

Multimeter, AC currents can be meas-

FIGURE 1 - SIMPSON AC AMMETER MODEL 653

The Simpson YOM-plus-adapter concept
completely unique in approach and versatility.
Each of the adapter models, of which the AC

Ammeter is but one example, provides specific
measurement and testing capabilities at a fraction
of the cost normally required for separate testers.

• Trade Mark Registered U. S. Patent Office

IS

1

GENERAL DESCRIPTION

GENERAL DESCRIPTION

ACCESSORIES FURNISHED

Each instrument is furnished with an Operator's

Manual and four extra pin-type plugs. The four
pin-type plugs are used only when the Model 653

is to be used with a

260

Series II and Series III identification).

260

Series II (see figure 2 for

PIN TYPE

ACKS

4

.

.

(0) 260,

2

Series

FIGURE 2 - 260 SERIES IDENTIFICATION

\\

.

.

II

II \\

(b)

260,

BANANA

TYPE JACKS

Series

SPECIFICATIONS

AC Current:

Ranges: 0-.25/1/2.5/12.5/25 amperes

III

Accuracy:

Adapter only ±2%

Adapter with

Adapter with

Frequency Response:

Essentially flat from 50 to 3000 cycles per

second.

Insulation Level: 600 v RMS (max.)

Power Input: None required.

Size: 5-5/16 x 4-3/8 x 3-7/16 inches.

Weight: 2 lbs.

260

±3% (F .S.) nominal

270

±3% (F.S.)

3