Omega Speaker Systems Thermometer DFG81 User Manual

User’s Guide  
DFG81 AND DFG82  
Mechanical Force Gauges  
 
GENERAL OPERATION  
1. Press Peak Switch OFF.  
2. Hand tighten (no tool!) selected attachment to the measuring shaft.  
3. RotateTare Ring to read0to 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.  
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.  
Tension measuring shaft  
ON  
Peak switch  
This switch activates or clears  
peak hold reading.  
Tare ring  
Compression measuring shaft  
 
DFG82 Ranges (Resolution) Accuracy: DFG82±0.1% F.S.  
Pounds Kilograms  
Capacity Capacity  
Newtons  
Capacity  
Model  
Model  
Model  
(Resolution)  
(Resolution)  
(resolution)  
DFG82-2  
DFG82-5  
DFG82-10 10 lb (0.05 lb)  
2 lb (0.01 lb)  
5 lb (0.025 lb)  
DFG82-1 KG 1 kg (5 g)  
DFG82-2 KG 2 kg (10 g)  
DFG82-3 KG 3 kg (20 g)  
DFG82-5 KG 5 kg (25 g)  
DFG82-10 KG 10 kg (50 g)  
DFG82-20 KG 20 kg (100 g)  
DFG82-30 KG 30 kg (200 g)  
DFG82-50 KG 50 kg (250 g)  
DFG82-10 N  
DFG82-20 N  
DFG82-30 N  
DFG82-50 N  
DFG82-100 N 100 N (0.5 N)  
DFG82-200 N 200 N (1 N)  
DFG82-300 N 300 N (2 N)  
DFG82-500 N 500 N (2.5 N)  
10 N (0.05 N)  
20 N (0.1 N)  
30 N (0.2 N)  
50 N (0.25 N)  
DFG82-20 20 lb (0.1 lb)  
DFG82-30 30 lb (0.2 lb)  
DFG82-50 50 lb (0.25 lb)  
DFG82-100 100 lb (0.5 lb)  
Overload capacity: 165 lbs. for all ranges  
Stroke: 10 mm F.S.  
DFG81 Ranges (Resolution) Accuracy: DFG81 ±0.3% F.S.  
Pounds Kilograms  
Capacity Capacity  
Newtons  
Capacity  
Model  
Model  
Model  
(Resolution)  
(Resolution)  
(Resolution)  
DFG81-2  
DFG81-5  
DFG81-10 10 lb (0.1 lb)  
2 lb (0.02 lb)  
5 lb (0.05 lb)  
DFG81-1 KG 1 kg (10 g)  
DFG81-2 KG 2 kg (20 g)  
DFG81-3 KG 3 kg (25 g)  
DFG81-5 KG 5 kg (50 g)  
DFG81-10 KG 10 kg (100 g)  
DFG81-20 KG 20 kg (200 g)  
DFG81-30 KG 30 kg (250 g)  
DFG81-50 KG 50 kg (500 g)  
DFG81-10 N  
DFG81-20 N  
DFG81-30 N  
DFG81-50 N  
DFG81-100 N 100 N (1 N)  
DFG81-200 N 200 N (2 N)  
DFG81-300 N 300 N (2.5 N)  
DFG81-500 N 500 N (5 N)  
10 N (0.1 N)  
20 N (0.2 N)  
30 N (0.25N)  
50 N (0.5 N)  
DFG81-20 20 lb (0.2 lb)  
DFG81-30 30 lb (0.25 lb)  
DFG81-50 50 lb (0.5 lb)  
DFG81-100 100 lb (1 lb)  
Overload capacity: 165 lbs. for all ranges  
Stroke: 10mm F.S.  
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 OMEGAS 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 WARRANTY RETURNS, please have the  
following information available BEFORE  
contacting OMEGA:  
FOR NON-WARRANTY REPAIRS, consult OMEGA  
for current repair charges. Have the following  
information available BEFORE contacting OMEGA:  
1. P.O. number under which the product was  
PURCHASED,  
1. P.O. number to cover the COST  
of the repair,  
2. Model and serial number of the product under  
warranty, and  
3. Repair instructions and/or specific problems  
relative to the product.  
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.  
 
Where Do I Find Everything I Need for  
Process Measurement and Control?  
OMEGA…Of Course!  
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