Simpson 160 Manual de usuario

160

About this Manual

To the best of our knowledge and at the time written, the information con-

tained in this document is technically correct and the procedures accurate

and adequate to operate this instrument in compliance with its original ad-

vertised specifications.

Notes and Safety

Information

This Operator’s Manual contains warning symbols which alert the user to

check for hazardous conditions. These appear throughout this manual where

applicable, and are defined below. To ensure the safety of operating perfor-

mance of this instrument, these instructions must be adhered to.

Warning, refer to accompanying documents.

Caution, risk of electric shock.

This instrument is designed to prevent accidental shock to the operator when

properly used. However, no engineering design can render safe an instru-

ment which is used carelessly. Therefore, this manual must be read carefully

and completely before making any measurements. Failure to follow direc-

tions can result in a serious or fatal accident.

Technical Assistance

SIMPSON ELECTRIC COMPANY offers assistance Monday through Friday

8:00 am to 4:30 pm Central Time. To receive assistance contact Technical

Support or Customer Service at (715) 588-3311.

Internet: http://www.simpsonelectric.com

Warranty

and

Returns

SIMPSON ELECTRIC COMPANY warrants each instrument and other ar-

ticles manufactured by it to be free from defects in material and workmanship

under normal use and service, its obligation under this warranty being limited

to making good at its factory or other article of equipment which shall within

one (1) year after delivery of such instrument or other article of equipment to

the original purchaser be returned intact to it, or to one of its authorized

service centers, with transportation charges prepaid, and which its examina-

tion shall disclose to its satisfaction to have been thus defective; this warranty

being expressly in lieu of all other warranties expressed or implied and of all

other obligations or liabilities on its part, and SIMPSON ELECTRIC COM-

PANY neither assumes nor authorizes any other persons to assume for it any

other liability in connection with the sales of its products.

This warranty shall not apply to any instrument or other article of equipment

which shall have been repaired or altered outside the SIMPSON ELECTRIC

COMPANY factory or authorized service centers, nor which has been subject

to misuse, negligence or accident, incorrect wiring by others, or installation

or use not in accord with instructions furnished by the manufacturer.

HAZARD: As defined in American National Standard, C39.5, Safety

Requirements

for

Electrical & Electronic Measuring &

Controlling

Instrumen-

tation, a shock hazard shall be considered to exist at any part involving a

potential in excess of 30 volts RMS (sine wave) or 42.4 volts DC or peak and

where a leakage current from that part to ground exceeds 0.5 milliampere,

when measured with an appropriate measuring instrument defined in Sec-

tion 11.6.1 of ANSI C39.5.

1. INTRODUCTION ……………………………………………………

1.1 General ……………………………………………………………….. 5

1.2 Suppliers & Accessories ……………………………………………. 5

1.3 Safety Consideration ……………………………………………… 5

1.4 Technical Data ………………………………………………………... 5

INSTALLATIO

N ……………………………………………………….

2.1 Unpacking & Inspection …………………………………………….. 7

2.2 Warranty ………………………………………………………………. 7

2.3 Shipping ……………………………………………………………….. 8

2.4 Operating Procedure …………………………………………………. 8

CONTROLS,

CONNECTORS

INDICATORS ……………………..

3.1 Panel Description …………………………………………………….. 8

OPERATIO

N …………………………………………………………. 9

4.1 Safety Precaution …………………………………………………….. 9

4.2 Zero Adjustment ........................................................................ 10

4.3 Measuring DC Voltages, 250 Millivolt Range .......................... 10

4.4 Measuring DC Voltages, 1 V Range .......................................... 11

4.5 Measuring DC Voltages, 2.5 Through 500 V Ranges ............... 11

4.6 Measuring DC Voltages, 1,000 Volt Range Only ...................... 12

4.7 Measuring AC Voltages, 2.5 Through 500 Volt Range ............. 12

4.8 Measuring AC Voltages, 1000 Volt Range Only ......................... 13

4.9 Measuring Decibels ................................................................... 13

4.10 Measuring Resistance ............................................................... 13

4.11 Direct Current Measurement ...................................................... 14

4.12 Measuring Direct Currents, 50 mA Range ................................. 14

4.13 Measuring Direct Current, 0-1 Through 0-500 mA Ranges ....... 15

BATTERY REPLACEMENT ...........................................................

INTRODUCTION

1.1

General

The Simpson 160 Volt-Ohm-Milliammeter (hereafter referred to as the 160 or

the Instrument) is a compact, easy-to-operate instrument used for measuring

electrical characteristics of circuits and circuit components. The Instrument

has a taut-band movement suspension with diode overload protection to pro-

vide long, trouble-free service. The 100 degree mirrored dial arc and knife

edge pointer provide excellent readability and eliminate parallax errors.

A polarity-reversing switch and a one-knob Function/Range selector simplify

operation of the Instrument. The internal batteries are easily obtained and

replaced.

Most of the component parts are mounted on a printed circuit board. This

helps ensure uniform performance, reduces maintenance and extends the

useful life of the Instrument.

1.2

Supplies &

Accessories

All supplies and accessories required for the operation of the 160 are fur-

nished with each Instrument and listed in Table 1-2.

1.3

Safety

Considerations

This Operator’s Manual contains cautions and warnings alerting the user to

hazardous operating and service conditions. CAUTION or WARNING sym-

bols are placed throughout this publication, where applicable, and are de-

fined on the inside cover of the manual under the heading SAFETY SYM-

BOLS. Adherence to these instructions will help ensure safety of operating

and servicing personnel and protect the instrument.

Technical

Data

Table

1-1.

Technical

Data

Volt

Ranges: 2.5, 10, 50, 250V; 0.25, 1.0 and 1000V on sepa-

rate jacks.

Sensitivity: 20,000 per volt

Rated Accuracy: Within 2% DC and 3% AC of full scale on all

ranges.

Ranges: 2.5, 20, 50, 250, 500V; 1,000V on

separate jack.

Sensitivity: 5,000 per volt.

Indication: Full-wave average-responding: calibrated in RMS

for sinusoidal waveforms.

* Frequency Response: Rated accuracy to 100,000 Hz on all ranges

through 50V; to 20 kHz on 250V range. 2-A.

Rated

Circuit-

To-G

ound

Volt

1,000V AC/DC max.

* See typical Response Curves, Figure 1-1.

** Per ANSI C39.5 April 1974: “The maximum voltage with respect to ground,

which may safely and continuously be applied to the circuit of an instrument.”

Direct Current:

Ranges: 1, 10, 100, 250, 500 mA; 50 µA on separate jack.

Rated Accuracy: Within ±2% full scale, all ranges

DC Resistance

Ranges:

000,3-01 x R (30 center)

R x 10 0-30,000 (300 center)

R x 100 0-300,000 (3 K center)

R x 1K 0-3 M (30 K center)

R x 10K 30 M (300 K center)

Accuracy:3° arc

Max. Voltage or Current

Delivered:

tiucric nepo V5.1 ,tiucric trohs Am 051 x R

R x 10 5 mA short circuit, 1.5V open circuit

R x 100 0.5 mA short circuit, 1.5V open circuit

R x 1K 0.75 mA short circuit, 22.5V open circuit

R x 10K 0.075 mA short circuit, 22.5V open circuit

dB Ranges: –20 dB to +10 dB on 2.5 VAC range

–8 dB to +22 dB on 10 VAC range

+6 dB to +36 dB on 50 VAC range

+20 dB to +50 dB on 250 VAC range

Zero dB referenced to 1 milliwatt at 600

Movement:Taut-Band 100° arc, 50 A full scale

Dial Arcs:One arc for ohms, one arc for DC, two arcs for

AC, one arc for dB.

Scale Length: 3.0 inches

Lead

Reversal: Polarity Reverse Switch; on DC and ohms 10.

Operating

Position

Horizontal or vertical; rubber feet prevent slipping on

moderate slopes.

Batteries

1.5 V AA penlight and AA 3.6V.

Movement &

Indicator

Protection

Silicon double diode across movement terminals.

Test

Leads: Custom molded elbow terminals; 3 ft. flexible

probe tips.

era

ting

era

75 °F for rated accuracy; less than 4% additional

Range:

error over the range of +25 °F to +130 °F.

Size:

4-9/16 x 3-5/16 x 1-3/4 (inches)

Weight

Approx. 12 oz., complete

Table 1-2. Items and AccessoriesSupplied

with

This

Instrument

Descr

Number

Probe Tip Test Leads 02055

Operator’s Manual 05-111658

Table 1-3.

Additional Accessories

Descr

Number

Padded Nylon Case 00836

Alligator Clip Leads 01927

TIO

This section contains instructions for the installation and shipping of the 160.

Included are unpacking and inspection procedures, warranty, shipping, and

operating procedure

2.1

Unpacking &

Inspection

Examine the shipping carton for signs of damage before unpacking. Unpack

and inspect the Instrument for possible damage in shipment. If damaged, notify

the carrier and supplier before using the Instrument. Check that all furnished

items and accessories are included (Table 1-2). Save all shipping materials

for future use.

2.2 Warranty

The Simpson Electric Company warranty policy is printed on the inside front

cover of this manual. Read it carefully before requesting a warranty repair.

For all assistance, contact the nearest Authorized Service Center for instruc-

tions. If necessary, contact the factory directly, give full details of the difficulty

and include the Instrument model number and date of purchase. Service data

or shipping instructions will be mailed promptly. If an estimate of charges for

nonwarranty or other service work is required, a maximum charge estimate

will be quoted. This charge will not be exceeded without prior approval.

2.3

Shipping

Pack the Instrument carefully and ship it prepaid and insured to the proper

destination.

2.4

Operating

Procedure

The Instrument may be operated in a horizontal or vertical position.

OLS,

CONNECTORS

ICATO

All operating and adjustment controls, connectors, and indicators are de-

scribed in this section along with a list (Table 3-1) describing their functions.

Become familiar with each item before operating the Instrument.

3.1

Panel

Description

Table 3-1 lists all Controls, Connectors, and Indicators.

Figure 3-1. Front

Panel

Table 3-1.Controls, Connectors, and

Indicators

Function

and

Range

Switch

This switch, located in the lower center of the panel,

is used to select the desired current, voltage, or re-

sistance function and appropriate range.

Zero

Ohms

Adjust

This control, located at the lower left on the front

panel, is used to obtain a “0” indication on the ohms

scale when the test leads are shorted together. Dur-

ing operation, the zero indication is checked each

time the ohmmeter is to be used. This permits com-

pensation for aging internal batteries, and allows

them to be used for a longer period of time.

Input Jacks: There are six input jacks: Four of these are on the

right side of the panel and two directly below the

zero adjustment screw. The four jacks on the right

are identified COM –, +, +1V, and +50 / +250 mV.

The COM + jack is used for all ranges and functions

with the exception of the 1V, 50 A, 250 mV, 1,000

VDC and 1,000 VAC ranges. The two jacks below

the Instrument are identified 1,000 VDC and 1,000

VAC and are used to extend the 500 VDC and 500

VAC ranges

Polarity Reversing

Switch:

This switch, located above the ADJ control, allows

simple lead polarity reversal when making DC or

resistance measurements on any range except the

50 µA, 250 mV, or 1V positions. For normal opera-

tion, set this switch to +DC position, using

the

COM – as the reference. Conversely, negative po-

larity signals can be measured without interchang-

ing leads by setting the switch to the – DC position.

When the VOM is set on any resistance range, this

switch reverses the polarity of the measuring poten-

tial in the same manner.

NOTE:

When making measurements of the 50 µ A, 250 mV, 1V ranges, the

reversing switch must be set to the +DC position to obtain readings.

OPERATION

Before operating the 160, review the SHOCK HAZARD definition printed on

the inside front cover of this manual.

4.1

Safety

Precautions

Instruments of this type are intended for use only in low-power, consumer

product type applications, such as TV or radio. Their use is not recommended

in high-power circuits such as power plants, substations or high power trans-

mitter circuits, where the likelihood of corona, together with sufficient energy

to sustain flash-over arcs, is a serious hazard.

1. Do not hold the instrument when working in circuits that might contain a

shock hazard.

2. Inspect the test leads, probes, connectors, and insulating boots for dam-

age or deterioration before each use. If defects are found, replace the

leads immediately with leads designed for the Instrument. Do not use

test leads inferior to those furnished with the Instrument.

3. Never disconnect the COMMON lead from an active circuit while the other

lead is connected to an energized circuit. The COMMON lead becomes

unexpectedly “hot” in such a case and can be a shock hazard. Develop

safe habits by always turning off power to the measured circuit and dis-

charging any capacitors before handling the test leads.

4. Become familiar with the circuit to be measured and locate any shock

hazards before attempting measurements. Remember that high voltages

might appear unexpectedly in a faulty circuit.

5. Measuring electricity is particularly hazardous in the presence of humid-

ity or moisture. Hands, shoes, floor and workbench must be dry.

6. Avoid measuring in circuits where composite voltages can exceed the

Instrument’s safe limits. When measuring DC voltages, the Instrument

will not respond to (and thereby not indicate) the presence of AC compo-

nents.

7. Be alert for corona in the measured circuit. Signs of corona include a

buzzing sound, ozone odor and a pale blue emanation. Its presence in-

dicates high voltage; an unexpected or unknown path might lead to a

flash-over.

8. Do not work alone when measuring where a shock hazard can exist.

Notify someone nearby of your intentions.

9. Do not connect the Instrument to an electrically energized circuit in a

hazardous area. Do not use the Instrument to check electrical “blasting”

circuits.

10. No general purpose VOM is to be used to make electrical measurements

on blasting circuits or blasting caps. Use VOMs designed for this pur-

pose only.

4.2

Zero

Adjustment

Before measuring, check to see that the pointer indicates zero when the In-

strument is in the operating position. If the pointer is off zero, make the re-

quired correction by turning the screw located directly below the “Simpson

160” legend.

4.3

Meas

ing

Vol

250

illi

nge

Use care when making measurements with the 160 on the 250 mV range. An

excessive voltage applied when in this range can damage the Instrument.

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