fe OMEGA
Un GHEG I Trehasiegh"s Compa:
MODEL TQ502
Socket Extension
Rotary Torque Sensor
Operator's Manual M1582/0193
GENERAL DESCRIPTION
The OMEGA TQ502 series Rotary Socket Torque Sensor is a convenient and low cost means of measuring dynamic
torque. These sensors are typically used to measure output torque in production fastening applications using stall and
clutch type nutrunners. The sensor has a built-in coined silver slip ring for rotary/stationary signal conversion. This sensor
is compatible with all strain gage condition instruments, and is available in 1/4, 3/8, 1/2, and 3/4" square drive versions with
capacities from 0-125 in-lb to 0-6000 in-ib.
SPECIFICATIONS
RATED OUTPUT: 1 to 3 mV/V nominal OPERATING TEMP. RANGE: -65°F to 250°F
(see chart below) COMPENSATED TEMP. RANGE: 32°F to 170°F
EXCITATION: 10 Vdc, 20 Vdc maximum BRIDGE RESISTANCE: 1000 ohms
ACCURACY: 0.37% F.S. MAX. RPM: 3000
NON-LINEARITY: 0.25% F.S. BRUSH LIFE (HOURS): 4.6 x 105/RPM
HYSTERESIS: 0.25% F.S. CONSTRUCTION: Black anodized steel
REPEATABILITY: 0.1% F.S. ELECTRICAL: Mating connector included
ZERO BALANCE: 1.0% F.S. WEIGHT: B oz.
THERMAL EFFECTS
Zero: 0.002% F.S./°F RECEPTACLE PTO2A- 10-6P
N
Span: 0.002% Rdg./°F WIRING MATING CON
MAX. LOAD PIN
. о . —
Safe: 115% F.S. Cao oo A: (+) EXCITATION | |
50% FS (AN caber В: ()ЕХСТАТОМ | ©
% .S. (All other models) С; (+) SIGNAL ; |
TQ502-2.4K)
200% F.S. (TQ502-1.5K,
TQ502-6K)
300% F.S. (All other models)
DIMENSIONS (INCHES)
MODEL DRIVE | RANGE (IN-LB) | OUTPUT (mV/V) A B С D E F G
TQ502-25 | 1/4" HEX 0-25 1.0 3.751 1.08 | 1.62 | .81 | 1.86 | .75 | 1.50
TQ502-50 1/4" НЕХ 0-50 2.0 3 75| 1.08 1.62 B1 1.86 75 1.50
TQ502-125 | 1/4" SQ. 0-125 2.0 3.00 | .50 | 1.62 .81 1.86 75 1.50
TQ502-200 | 3/8" SQ. 0-200 1.5 3.00] .50 | 1.62 81 1.86 75 1.50
TQ502-600 | 3/8" SQ. 0 - 600 3.0 3.00 | .50 | 1.62 81 1.86 75 1.50
TQ502-1.5K| 1/2" SQ. O - 1,500 3.0 3.50| .64 | 1.62 ‚81 1.86 75 1.50
TQ502-2.4K} 172" SQ. 0-2,400 3.0 3.50 | .64 | 1.62 81 1.86 75 1.50
TQ502-6K | 3/4" SQ. О - 6,000 3.0 5.10 9.96 | 1.80 | 1.121 2.50 | 1.00 | 2.00
GENERAL CALIBRATION PROCEDURE
To create the calibration curve furnished to you, the sensor is cycled through the operating range to develop a stable
hysteresis loop. Known loads are then applied to the sensor by means of dead weights or a reference load cell in
ascending and descending increments. The data recorded is then best fit to second degree equations which describe
ascending, descending, and average calibration curves. These equations are incrementally solved to generate theoretical
sensor outputs at various loads. The calibration sheet supplies you with these data points whose meanings are defined in
the Sensor Calibration diagram.
SENSOR CALIBRATION
(CURVATUHE EXAGGERATED)
Terminal Non-linearity (N/L): computed
TERMINAL from deviations of ascending theoretical
100 }— TERMINAL FS. OUTPUT data from a straight line connecting the
zero and full scale points.
/ BEST FIT THROUGH ZERO . .
7 Terminal hysteresis (HYS): computed
— BEST FIT THROUGH ZERO F.S. OUTPUT / from the differences between descending
and ascending theoretical data.
\ DESCENDING
/
7
ASCENDING
/y
’
к Lr HYSTERESIS
OUTPUT (%)
SHUNT CAL OUTPUT
TERMINAL NONLINEARITY
BEST FIT THROUGH ZERO NON-UNEARITY
Best fit through zero Non-linearity (BF/0):
computed from deviations of average
theoretical data from a straight line through
zero with a slope which produces minimum
deviations with average theoretical data.
Best {it through zero outputs and best fit
through zero shunt cal values should be
used when the sensor is assumed to be
linear. If the instrumentation is capable of
correcting second order non-linearity, the
Ze, SHUNT CAL VALUE (TERMINAL
= = SHUNT CAL VALUE (BEST AIT THROUGH ZERO)
o Г }
с 100
TORQUE (%)
average outputs and shunt cal output
values should be used.
OMEGA warrants this unit to be free of defects in materials and | workmanship and to give
satisfactory service 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 thet our customers receive maximum coverage on
each product. If the unit should malfunction, it must be returned to the factory for evaluation. Our
Customer Service Department will issus 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. However, 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 cofrosion; or current, heat, moisture or vibration; improper specification; misapplica-
tion; misuse or other operating conditions outside of OMEGA’s control. Componente which wear
or which are damaged by misuse are notwarranted. These include contact points, fuses, and triacs.
We are glad te sffer suggestions en the use of eur various products. Nevertheless OMEGA
only warrants thet the perts menufsctured 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 buyer set forth herein are exclusive and the
total liability of OMEGA with respect te this order, whether based an contract,
warranty, negligence, indemnificetion, strict lisbility er etherwise, shall net exceed
the purchase price of the compenent upen which liability is based. In ne event shell
OMEGA be liable for sensequential, incidents] or special dameges.
Every precaution for accuracy has been taken in the preparation of this manual, however, OMEGA
ENGINEERING, INC. neither assumes responsibility for any omissions or ercors that may appear
nor assumes liability for any damages that result from the use of tha products in accordance with
the information contained in the manual.
OMEGA's policy is to make running changes, not model changes, whenever an improvement
is possible. That way our customers get the latest in technology and engineering.
OMEGA la a registered trademark of OMEGA ENGINEERING, INC.
O Copyright 1993 OMEGA ENGINEERING, INC. All rights reserved Including illustrations.
Nothing In this manual may be reproduced in any manner, either wholly or in part for any
purpose whatsoever without written permission from OMEGA ENGINEERING, INC.
Printed In U.S.A.
Servicing USA and Canada: Call OMEGA Toll Free
OMEGA Engineering, Inc.
One Omega Drive, Box 4047
Stamford, CT 06907-0047 U.S.A.
Headquarters: (203) 359-1660
Sales: 1-800-826-6342 / 1-800-TC-OMEGA
Customer Service: 1-800-622-2378 / 1-800-622-BEST
Engineering: 1-800-872-9436 / 1-800-USA-WHEN
FAX: (203) 359-7700 TELEX: 996404 EASYLINK: 62968934 CABLE: OMEGA
Servicing Europe: United Kingdom Sales and Distribution Center
OMEGA Technologies Ltd.
P.O. Box 1, Broughton Astley, Leicestershire
LES 6XR, England
Telephone: (0455) 285520 FAX: (0455) 283912
4 RETURN REQUESTS / INQUIRIES
Direct al warranty and repair requesta/inquiries to OMEGA's Customer Service » Department.
Cali toll free in the USA and Canada: 1-800-622-2378, FAX: 203-359-7811; International: 203-
359-1660, FAX: 203-359-7807.
BEFORE RETURNING ANY PRODUCT(S) TO OMEGA, YOU MUST OBTAIN AN AUTHORIZED
RETURN (ARI NUMBER FROM OUR CUSTOMER SERVICE DEPARTMENT {IN ORDER TO
AVOID PROCESSING DELAYS). The assigned AR numbers shouid then be marked on the
outside of the return package and on any correspondence.
Lda * ви ео
FOR WARBANTY RETURNS, please have the
following information available BEFORE con-
tacting OMEGA:
FORNON-WARBANTY REPAIRS ORCALIBRA:
TON, consult OMEGA for current repair/cali-
bration charges. Have the following informa-
tion available BEFORE contacting OME GA:
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 prob-
lems you are having with the product.
1. Your P.O. number to cover the COST ofthe
repair/calibration,
2. Model and serial number of the product,
3. Repair instructions and/or apecific prob-
lems you are having with the product.
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