Bech-100-14 Scale User Manual

Rotary scale clamp-on model rs-3, Operating instructions, Amprobe

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5. With Test Leads Shorted-

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Line up pointer with '0' mark on
ohms scale by turning Small
Black Knob on right side of
instrument (Fig 17)

NOTE: If ohmmeter zero adjust
knob does not line pointer up on zero
mark, replace battery with a new one.
Oxidation on base of battery can cause
poor contact. Sand lightly to assure good
contact.

6. To Measure Resistance

between any two points on a
device, simply apply the clip lead
and the ohmmeter attachment
probe tip and read pointer.

HOW TO READ OHMMETER SCALE
The ohmmeter scale is located on the flat plate along the righthand edge of the
window. The zero mark (beginning) is on top of the scale while the infinity mark

” ends the scale.

OPTIONALEXTENDO LEADS
FOR FASTER AND EASIER VOLTAGE TESTING

EXTENDO TESTLEADS. Cal. No VLK-411R. have
5 inch long insulated probes for a man-sized grip.
One probe clamps between instrument jaws.
Optional alligator clip adaptor (Cat No VRC-320)
converts probe so it can be fastened to test point.
Probe tips are replaceable (Cat No VPT)

Fig 19

FACTORY SERVICE

If the instrument fails to operate, check battery, test leads, etc and replace as
necessary. If the instrument still malfunctions, please call the phone number
listed below:
Tel: 954-499-5400 - 800-327-5060
Outside the U.S.A. the local Amprobe representative will assist you.

RANGE-EXPANDING ACCESSORIES

*Intermittent duty
All of the above are clamp-on type transformers. Models CT-50-1 (six link) and
CT-50-2 (four link) are flexible link construction.
Request Cal. No, AAD38.

Mode

A50-1

CT-50-1
CT-50-2

Ratio

10 to 1
50 to 1
50 to 1

Maximum Range Capability

1,200 amperes*
6,000 amperes*
3,600 amperes*

OTHER ACCESSORIES & REPLACEMENT PARTS

Model

Description

VL-11R..............................................................................Leads
VLK-411R.........................................................................Extendo Leads
VPT...................................................................................Replacement Tips
OHB-3HE .......................................................................Ohmmeter Attachment
8AG-360x023....................................................................Fuse - 600V. 1Amp
A-47L................................................................................Energizer
ADP-46.............................................................................Ground adaptor
912....................................................................................Buttery AAA
VRC-320...........................................................................Alligator Clip

Reg. U.S. Pat. office
Patent nos. 2,663,845
Others Pending

HOW TO INSTALL
FUSE AND BATTERY

Unscrewbaseofohmmeterbattery/fuse attachment
insert fuse (Use Litte/fuse type 8AG - 360x023
1AMPfast blow) and AAAbattery (Cal No 912, not
supplied) into probe end as shown in figure.
Screw base on to probe.

HOW TO USE AS AN OHMMETER

CAUTION:

FOR RS-3 MODELS

.

Make certain no voltage is present in circuit before connecting ohmmeter.
The ohmmeter is fused to help protect it against a misapplication of voltage
but under certain conditions it is still possible to damage the meter and/or
cause personal injury. Use only OHB-3HE ohmmeter attachment with fuse
#8AG-360x023. 1 Amp 600V.

Fig 13

Fuse
Battery
Case

Fuse

Battery

Lid

1. Insert either the Red or Black Voltage

Lead into the Left Voltage Receptacle
at bottom of instrument case (Fig. 14).

2. Insert ohmmeter battery/fuse attachment

into the jack on the right side of the
instrument just below the ohmmeter Zero

Adjust Knob. Seat plug to bottom for

good connection (Fig. 15).

3. Set range Selector so that the 150 volt

red scale appears in window.

4. Ohmmeter Scale Adjustment with test

Leads Open-Pointer should line up with
division marked “

” on OHMS SCALE.

Turn Pointer Zero Adjust Screw if neces-
sary (Fig. 16).

IMPORTANT:

Read 'Precaution for Personal and Instrument Safety'

before using instrument.

Fig 14

Fig 15

Fig 16

Zero

Adjust

Knob

Zero

Adjust

Knob

Fig 17

Fig 18

Beach-100-14 Scale User Manual Free

Fig 19

Zero

Adjust

Knob

NOTE: If you fail to get an ohmmeter indication or the indication is
intermittent, before replacing the battery or fuse, lightly sand the base
of the battery with fine sandpaper. This will remove any oxidation that
could be causing poor or intermittent contact.

And Scales Manuals

CAUTION: Makecertainthatcircuit
is disconnected from line before
takinganyresistance measurements.

|

AMPROBE

®

Miramar, FL

www.amprobe.com

Phone: 954-499-5400

Fax: 954-499-5454

P/N 915741 Rev.B

OPERATING

INSTRUCTIONS

for

AMPROBE

®

Rotary Scale

Clamp-on

Model RS-3

See Precautions for Personal and

Greater Goods Scale User Manual

Instrument Safety on Page 1

SPECIFICATIONS

AC Voltage Ranges: 0- 150/300/600
AC Amp Ranges: 0-6/15/40/100/300
Ohms : 25 Ohms mid-scale
Frequency Response: 50/60 Hz
Accuracy: Volts and Amps: – ± 3% of Full Scale 50 / 60 Hz

based on sinusoidal waveform
Ohms – ±3% of arc.

Duty: Continuous
Case Breakdown: 3500 Volts
Ohmmeter Protection: Ohm circuit is fuse protected to 600 Volts

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