Omega Engineering DFG81, DFG82 User Manual

www.omega.com

e-mail: [e-mail]

User’s Guide

DFG81 AND DFG82

Mechanical Force Gauges

Servicing North America:

USA: One Omega Drive, Box 4047

ISO 9001 Certified Stamford, CT 06907-0047

TEL: [phone] FAX: [phone]
e-mail: [e-mail]

Canada: 976 Bergar

Laval (Quebec) H7L 5A1
TEL: [phone] FAX: [phone]
e-mail: [e-mail]

For immediate technical or application assistance:

USA and Canada: Sales Service: 1-800-826-6342 / 1-800-TC-OMEGA

®

Customer Service: 1-800-622-2378 / 1-800-622-BEST

®

Engineering Service: 1-800-872-9436 / 1-800-USA-WHEN

®

TELEX: 996404 EASYLINK: 62968934 CABLE: OMEGA

Mexico: TEL: [phone] FAX: [phone]

En Espan˜ ol: [phone]-7803 e-mail: [e-mail]

[e-mail]

Servicing Europe:

Benelux: Postbus 8034, 1180 LA Amstelveen, The Netherlands

TEL: [phone] FAX: [phone]
Toll Free in Benelux: 0800 0993344
e-mail: [e-mail]

Czech Republic: Rudé armády 1868, 733 01 Karviná 8

TEL: [phone] FAX: [phone]
Toll Free in Czech Republic: 0800-1-66342 e-mail: [e-mail]

France: 9, rue Denis Papin, 78190 Trappes

TEL: [phone] FAX: [phone]
Toll Free in France: 0800-4-06342
e-mail: [e-mail]

Germany/Austria: Daimlerstrasse 26, D-75392 Deckenpfronn, Germany

TEL: [phone] FAX: [phone]
Toll Free in Germany: 0800 TC-OMEGA

SM

e-mail: [e-mail]

United Kingdom: One Omega Drive, River Bend Technology Centre

ISO 9002 Certified Northbank, Irlam, Manchester

M44 5EX, England
TEL: [phone] FAX: [phone]
Toll Free in England: 0800 488 488
e-mail: [e-mail]

OMEGAnetSMOn-Line Service Internet e-mail

http://www.omega.com [e-mail]

It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that
apply. OMEGA is constantly pursuing certification of its products to the European New Approach
Directives. OMEGA will add the CE mark to every appropriate device upon certification.

The information contained in this document is believed to be correct but OMEGA Engineering, Inc. accepts
no liability for any errors it contains, and reserves the right to alter specifications without notice.
WARNING: These products are not designed for use in, and should not be used for, patient connected applications.

PRECAUTIONS

1. Do not exceed capacity of unit.

2. Do not use the tension shaft to measure compression or the compression shaft to measure tension.

3. When mounting DFG81/DFG82 to stand, use M3 mounting screws with a maximum insertion depth
of 8mm into the gauge.

4. Accuracy may be affected if unit is exposed to high humidity, dust or extreme shock.

5. Do not apply oil or chemical soap which causes corrosion or dust adhesion.

6. Do not remove warranty seal or disassemble gauge. Disassembly voids warranty.

GENERAL OPERATION

1. Press Peak Switch OFF.

2. Hand tighten (no tool!) selected attachment to the measuring shaft.

3. Rotate Tare Ring to read “0” to tare the weight of attachment and measuring shaft orientation.

4. Begin measuring.

Real Time Mode: the Peak Switch is OFF and the gauge displays force as it changes.During Real

Time Mode, you can hold a critical reading by turning the Peak Switch to the ON position.

Peak Mode: the Peak Switch is ON and the gauge will retain highest reading taken which will not

change until a higher value is measured.Turn the Peak Switch OFF to zero the gauge and turn it
ON again to measure Peak values.

Tension measuring shaft

Peak switch

This switch activates or clears
peak hold reading.

Tare ring

Compression measuring shaft

ON

Pounds Kilograms Newtons

Model

Capacity

Model

Capacity

Model

Capacity

(Resolution) (Resolution) (Resolution)

DFG81-2 2 lb (0.02 lb) DFG81-1 KG 1 kg (10 g) DFG81-10 N 10 N (0.1 N)
DFG81-5 5 lb (0.05 lb) DFG81-2 KG 2 kg (20 g) DFG81-20 N 20 N (0.2 N)
DFG81-10 10 lb (0.1 lb) DFG81-3 KG 3 kg (25 g) DFG81-30 N 30 N (0.25N)
DFG81-20 20 lb (0.2 lb) DFG81-5 KG 5 kg (50 g) DFG81-50 N 50 N (0.5 N)

DFG81-10 KG 10 kg (100 g) DFG81-100 N 100 N (1 N)
DFG81-30 30 lb (0.25 lb) DFG81-20 KG 20 kg (200 g) DFG81-200 N 200 N (2 N)
DFG81-50 50 lb (0.5 lb) DFG81-30 KG 30 kg (250 g) DFG81-300 N 300 N (2.5 N)
DFG81-100 100 lb (1 lb) DFG81-50 KG 50 kg (500 g) DFG81-500 N 500 N (5 N)

DFG81 Ranges (Resolution) Accuracy: DFG81 ±0.3% F.S.

DFG82 Ranges (Resolution) Accuracy: DFG82±0.1% F.S.

Pounds Kilograms Newtons

Overload capacity: 165 lbs. for all ranges Stroke: 10 mm F.S.

Overload capacity: 165 lbs. for all ranges Stroke: 10mm F.S.

Model

Capacity

Model

Capacity

Model

Capacity

(Resolution) (Resolution) (resolution)

DFG82-2 2 lb (0.01 lb) DFG82-1 KG 1 kg (5 g) DFG82-10 N 10 N (0.05 N)
DFG82-5 5 lb (0.025 lb) DFG82-2 KG 2 kg (10 g) DFG82-20 N 20 N (0.1 N)
DFG82-10 10 lb (0.05 lb) DFG82-3 KG 3 kg (20 g) DFG82-30 N 30 N (0.2 N)
DFG82-20 20 lb (0.1 lb) DFG82-5 KG 5 kg (25 g) DFG82-50 N 50 N (0.25 N)

DFG82-10 KG 10 kg (50 g) DFG82-100 N 100 N (0.5 N)
DFG82-30 30 lb (0.2 lb) DFG82-20 KG 20 kg (100 g) DFG82-200 N 200 N (1 N)
DFG82-50 50 lb (0.25 lb) DFG82-30 KG 30 kg (200 g) DFG82-300 N 300 N (2 N)
DFG82-100 100 lb (0.5 lb) DFG82-50 KG 50 kg (250 g) DFG82-500 N 500 N (2.5 N)

Dimensions

When installing be sure to
keep the depth to 8mm

WARRANTY/DISCLAIMER

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a
period of 13 months from date of purchase. OMEGA Warranty adds an additional one (1) month grace
period to the normal one (1) year product warranty to cover handling and shipping time. This
ensures that OMEGA’s customers receive maximum coverage on each product.

If the unit should malfunction, it must be returned to the factory for evaluation. OMEGA’s Customer
Service Department will issue an Authorized Return (AR) number immediately upon phone or written
request. Upon examination by OMEGA, if the unit is found to be defective it will be repaired or replaced at
no charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser,
including but not limited to mishandling, improper interfacing, operation outside of design limits,
improper repair, or unauthorized modification. This WARRANTY is VOID if the unit shows evidence of
having been tampered with or shows evidence of being damaged as a result of excessive corrosion; or
current, heat, moisture or vibration; improper specification; misapplication; misuse or other operating
conditions outside of OMEGA’s control. Components which wear are not warranted, including but not
limited to contact points, fuses, and triacs.

OMEGA is pleased to offer suggestions on the use of its various products. However,
OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for any
damages that result from the use of its products in accordance with information provided by
OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by it will be
as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR
REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT THAT OF
TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF
LIABILITY: The remedies of purchaser set forth herein are exclusive and the total liability of
OMEGA with respect to this order, whether based on contract, warranty, negligence,
indemnification, strict liability or otherwise, shall not exceed the purchase price of the
component upon which liability is based. In no event shall OMEGA be liable for
consequential, incidental or special damages.

CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic
Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical
applications or used on humans. Should any Product(s) be used in or with any nuclear installation or
activity, medical application, used on humans, or misused in any way, OMEGA assumes no responsibility
as set forth in our basic WARRANTY/ DISCLAIMER language, and additionally, purchaser will indemnify
OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the
Product(s) in such a manner.

RETURN REQUESTS / INQUIRIES

Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE
RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN
(AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID
PROCESSING DELAYS). The assigned AR number should then be marked on the outside of the return
package and on any correspondence.

The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent
breakage in transit.

FOR W

ARRANTY RETURNS, please have the

following information available BEFORE
contacting OMEGA:

1. P.O. number under which the product was
PURCHASED,

2. Model and serial number of the product under
warranty, and

3. Repair instructions and/or specific problems
relative to the product.

FOR NON-WARRANTY REPAIRS,

consult OMEGA
for current repair charges. Have the following
information available BEFORE contacting OMEGA:

1. P.O. number to cover the COST

of the repair,

2. Model and serial number of product, and

3. Repair instructions and/or specific problems

relative to the product.

OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords
our customers the latest in technology and engineering.

OMEGA is a registered trademark of OMEGA ENGINEERING, INC.
© Copyright 1996 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied,

reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without prior
written consent of OMEGA ENGINEERING, INC.

M3515/1099

Where Do I Find Everything I Need for

Process Measurement and Control?

OMEGA…Of Course!

TEMPERATURE

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Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies

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Wire: Thermocouple, RTD & Thermistor

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Calibrators & Ice Point References

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Recorders, Controllers & Process Monitors

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Infrared Pyrometers

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Load Cells & Pressure Gauges

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pH Electrodes, Testers & Accessories

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Benchtop/Laboratory Meters

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Plug-in Cards for Apple, IBM & Compatibles

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HEATERS

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Heating Cable

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Cartridge & Strip Heaters

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MONITORING AND CONTROL

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