Omega | THS SERIES | Owner Manual | Omega THS SERIES Owner Manual

Omega THS SERIES Owner Manual
User’s Guide
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NORWALK, CT
M12 CONNECTOR STYLE
THS SERIES
Sanitary Thermistor Sensors
M-4913-E Instruction Manual for M12 Connector Style THS Series
Sanitary Thermistor Sensors
The PRS series sensors are manufactured
with 316L stainless steel wetted surfaces that
have surface finishes of 32 microinch or better
Care should be exercised when handling the
sensors so that the surface finish is not
damaged during handling or installation.
GENERAL DESCRIPTION
The Omega PRS series sensors are designed
for use in Sanitary Clean-In-Place (CIP)
systems. They are supplied standard with
1-1/2" 16AMP Style flanges so they can be
assembled to like style piping connections.
Other connection sizes and styles are
available.
These sensors are supplied with thermistor
elements that provide a non-linear resistance
temperature output that has significantly
greater resolution (in ohms per degree) than
do our RTD sensors. Please note that
thermistor sensors require lower operating
currents than do RTD sensors, typically
around 12 microamps max, in order to
insure that no self-heating occurs.
Resistance vs. Temperature Tables and
Equations for each thermistor offered are
provided on page 2.
PROCESS CONNECTION:
This sensor includes a mounting flange that
connects to a similar flange located at the
process connection point. A commercially
available gasket is used between the sensor
flange and the process flange, with a clamp
used to compress the two together.
WIRING CONFIGURATION:
The Omega THS Style sensors are supplied
with 4-pin, M12 connectors for convenient
connection to your process instrumentation
using a suitable extension cable. The wiring
arrangement of the connector pins is shown
in the detail below. Please note that
thermistor sensors are 2-wire devices and
have no polarity associated with their use.
OPERATING CURRENT:
As is the case with most precision thermistor
sensors, Omega THS series sensors should
be powered with no more than 12
microamps of excitation current. If operated
at higher currents, self heating errors may
occur.
SPECIFICATIONS:
Sensing Element Type: Thermistor
Accuracy: ±0.2°C between 0 and 70°C.
Temperature Range: -80 to 150°C (-112 to
302°F).
Excitation Current: 12 microamps max.
Response Time: 2.5 seconds max (63%)
Wetted Surfaces: 316L Stainless Steel with
32 microinch or better surface finish.
Process Connection: M12 4-Pin Connector.
M-4913-E Instruction Manual for M12 Style Sanitary Thermistor Sensors
Resistance Vs. Temperature Table: Resistance Listed in Ohms
Temp (°F)
-112
-103
-94
-85
-76
-67
-58
-49
-40
-31
-22
-13
-4
5
14
23
32
41
50
59
68
77
86
95
104
113
122
131
140
149
158
167
176
185
194
203
212
221
230
239
248
257
266
275
284
293
302
Temp(°C)
-80
-75
-70
-65
-60
-55
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
120
125
130
135
140
145
150
2K
1662564
1073115
704145
469308
317460
217788
151423
106630
76003
54803
39954
29436
21906
16459
12480
9546
7364
5726
4486
3541
2815
2253
1815
1471
1199.5
983.8
811.2
672.6
560.4
469.3
394.8
333.7
283.3
241.5
206.7
177.6
153.2
132.6
115.2
100.4
87.8
77.1
67.8
59.9
53.0
47.0
41.9
3K
2220043
1432900
940215
626650
423899
290815
202202
142392
101497
73187
53358
39312
29255
21981
16667
12749
9834
7646
5991
4729
3759
3008
2423
1964
1601
1313
1082.5
897.3
747.6
625.9
526.5
444.9
377.6
321.9
275.5
236.7
204.1
176.7
153.4
133.7
116.9
102.6
90.3
79.7
70.5
62.6
55.7
Equations:
Calculating Temperature from Resistance:
1/t=A+B[Ln(R)] +C[Ln(R)]3
where t = temperature in °C
Constants:
Code
R
A
B
2K
2252
1.468x10-3 2.383x10-4
3K
3000
1.403x10-3 2.373x10-4
5K
5000
1.285x10-3 2.362x10-4
10K
10000
1.032x10-3 2.387x10-4
30K
30000
9.376x10-4 2.208x10-4
Sensor Code
5K
3686168
2378027
1559792
1039314
702918
482182
335243
236082
168287
121359
88488
65204
48531
36470
27658
21160
16324
12695
9949
7854
6244
4998
4026
3264
2661
2183
1800
1492
1243
1041.1
875.8
740.2
628.3
535.5
458.3
393.8
339.6
293.9
255.3
222.5
194.6
170.7
150.2
132.5
117.3
104.1
92.6
10K
3581357
2449596
1697658
1191325
845998
607604
441117
323559
239671
179206
135203
102883
78936
61042
47561
37328
29500
23470
18793
15141
12271
10002
8198
6754
5593
4655
3892
3270
2758
2337
1988
1698
1456
1253
1082.4
938.1
815.8
711.7
622.8
546.7
481.3
424.9
376.2
333.9
297.2
265.2
237.2
30K
15739361
10508458
7114634
4881167
3391326
2384663
1696095
1219577
886113
650261
481743
360159
271616
206557
158343
122318
95188
74601
58865
46753
37367
30046
24301
19765
16162
13285
10975
9111
7599
6366
5357
4526
3840
3271
2797
2400
2067
1786
1548
1347
1175
1029
902.8
794.7
701.4
620.8
550.8
Calculating Resistance from Temperature:
R=e(beta-(alpha/2))1/3-((beta+(alpha/2))1/3
C
1.007x10-7
9.827x10-8
9.285x10-8
1.580x10-7
1.276x10-7
Constants:
alpha = ((A-(1/T))/C)
beta = SQRT(((B/3C))3)+(alpha2/4))
T = Temperature in Kelvins (°C+273.15)
For Resistance Vs. Temperature Tables in 1°C Increments, go to our website at
http://www.omega.com/temperature/Z/pdf/z256-257.pdf
omega.com info@omega.com
U.S.A.
Headquarters:
Servicing North America:
Omega Engineering, Inc.
Toll-Free: 1-800-826-6342 (USA & Canada only)
Customer Service: 1-800-622-2378 (USA & Canada only)
Engineering Service: 1-800-872-9436 (USA & Canada only)
Tel: (203) 359-1660
Fax: (203) 359-7700
e-mail: info@omega.com
For Other Locations Visit omega.com/worldwide
The information contained in this document is believed to be correct, but OMEGA accepts no liability for any errors it
contains, and reserves the right to alter specifications without notice.
DISCLAIMER
If the unit malfunctions, 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 having been 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 in which wear is not warranted,
include but are 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 the company 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 WARRANTY RETURNS, please have the following
information available BEFORE contacting OMEGA:
1.Purchase Order 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. Purchase Order number to cover the COST of the repair,
2. Model and serial number of the 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 trademark of OMEGA ENGINEERING, INC.
© Copyright 2018 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 the prior written consent of
OMEGA ENGINEERING, INC.
M4913-E/0418
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