DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
The DRG-SC-TC is a DIN rail mount,
thermocouple input signal conditioner
with 1800VDC isolation between in-
put, output and power. The field
configurable input and output offer
flexible, wide ranging capability for
J, K, T, R, S, E and B type thermo-
couples.
The input of the DRG-SC-TC can be
configured for over 60 different ther-
mocouple temperature ranges (see
Table 6). The output is linear to
temperature and can be set for either
0-5V, 0-10V, 0-1mA, 0-20mA or
4-20mA.
Wide ranging, precision zero and
span pots allow 50% adjustablity of
offset and span turn-down within each
of the ranges. For example, the 0-
1000°C range could be offset and
turned down to provide a 4-20mA
signal representing 500-1000°C.
Similarly, adjustment can be refer-
enced to the output range. The
example from above could be used
to provide a 12-20mA signal from a
750 to 1000°C temperature input.
APPLICATION
APPLICATION
APPLICATION
APPLICATION
APPLICATION
The DRG-SC-TC field configurable
thermocouple input isolator is useful
in eliminating ground loops and inter-
facing thermocouple sensors to data
acquisition and control systems.
Three way isolation completely elimi-
nates ground loops from any source.
Isolation protects expensive SCADA
systems from ground faults and al-
lows the noise reduction benefits of
grounded thermocouples to be real-
ized.
The DRG-SC-TC employs the latest
in advanced analog signal process-
ing technology. In addition to its
CONFIGURATION
CONFIGURATION
CONFIGURATION
CONFIGURATION
CONFIGURATION
An advantage of the DRG-SC-TC is
its wide ranging capabilities and ease
of configuration. The DRG-SC-TC
enables 50% input zero and span
adjustablity DRG-SC-TC within each
of the full-scale input ranges.
Unless otherwise specified, the
factory presets the Model
DRG-SC-TC as follows:
Input:
J-type
Range:
0 to 500°C
Output:
4 to 20mA
Burn Out:
Upscale
The DC power input accepts any DC
source between 9 and 30V; typically
a 12V or 24VDC source is used (see
Accessories).
For other I/O ranges refer to Tables
1 through 6 and reconfigure switches
SW1 and SW2 for the desired input
type range and output.
WARNING:
WARNING:
WARNING:
WARNING:
WARNING:
Do not attempt to change
any switch settings with power applied.
Severe damage will result!
1. Choose the desired temperature
range from table 6, then use table 1
and 2 to configure the switches, as
described in the following steps, for
thermocouple type and range.
2. With DC power off, position input
switches 1 and 2 on "SW2" for the
desired burnout detection mode.
3. Set positions 4 through 10 on
"SW2" for the desired thermocouple
range and type.
4. Set positions 1 through 8 of output
range switch "SW1" for the desired
output signal. (Table 4)
* Application Specific Integrated Circuit
multiple microprocessors, a special
ASIC* chip is used for high accuracy
and reliability. The DRG-SC-TC is
also equipped with cold junction com-
pensation (CJC) circuitry to provide
ice-point reference. Upscale or
downscale thermocouple burnout
detection is switch selectable.
High density DIN rail mounting offers
an extremely compact solution to
save valuable panel space.
DIAGNOSTIC LEDS
DIAGNOSTIC LEDS
DIAGNOSTIC LEDS
DIAGNOSTIC LEDS
DIAGNOSTIC LEDS
The DRG-SC-TC is equipped with
front panel LEDs for INPUT (green),
TROUBLE (yellow) and CAL OK (yel-
low). At start-up, both the INPUT
and the CAL OK LEDs flash alter-
nately for 10 seconds while start-up
takes place.
INPUT LED
INPUT LED
INPUT LED
INPUT LED
INPUT LED
This green LED is lit continuously
when the input is within the specified
range. In the full temperature range
setting, for the over range condition
the LED flashes at 8Hz, whereas for
the under range condition it flashes
at 4Hz. In a sub-range temperature
setting, for the over range condition
the LED flashes at 1Hz, whereas for
the under range condition it flashes
at 0.5Hz.
CAL OK LED
CAL OK LED
CAL OK LED
CAL OK LED
CAL OK LED
This yellow LED is continuously on
when the device is calibrated.
TROUBLE LED
TROUBLE LED
TROUBLE LED
TROUBLE LED
TROUBLE LED
This yellow LED is off during the
normal operation of the device. Con-
sult factory if this LED is on, indicat-
ing a microprocessor malfunction.
DRG-SC-TC
Thermocouple Input, Field Configurable Isolator
Instruction Sheet M2397/0796
SPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONS
SPECIFICATIONS
IIIII
nputs
nputs
nputs
nputs
nputs
Sensor Types: J, K, T, R, S, E, B
Input Ranges: see table 6.
Impedance: >1M
Ω
Bias Current (burnout detection):
<1.5microamp
Overvoltage: ±10V differential
Common Mode (Input to Ground):
1800VDC, max.
Zero and Span Adjustability
Zero and Span Adjustability
Zero and Span Adjustability
Zero and Span Adjustability
Zero and Span Adjustability
50% of any selected range
Output
Output
Output
Output
Output
Voltage Output
Output: 0-5V, 0-10V
Source Impedance: <10
Ω
Drive: 10mA, max.
Current Output
Output: 0-1mA, 0-20mA,
4-20mA
Source Impedance: >100K
Ω
Compliance:
0-1mA; 7.5V, max.(7.5K
Ω
)
0-20mA; 12V, max.(600
Ω
)
4-20mA; 12V, max.(600
Ω
)
Accuracy
Accuracy
Accuracy
Accuracy
Accuracy (Including Linearity,
Hysteresis) see Table 5
Stability
Stability
Stability
Stability
Stability
+0.04% of the maximum full scale
range per ºC change in ambient
temperature, maximum.
Response Time (10 to 90%)
Response Time (10 to 90%)
Response Time (10 to 90%)
Response Time (10 to 90%)
Response Time (10 to 90%)
500mSec., typical.
Common Mode Rejection
Common Mode Rejection
Common Mode Rejection
Common Mode Rejection
Common Mode Rejection
DC to 60Hz: 120dB
Isolation
Isolation
Isolation
Isolation
Isolation
1800VDC between input, output
and power.
EMC Compliance
EMC Compliance
EMC Compliance
EMC Compliance
EMC Compliance
Emissions: EN50081-1
Immunity: EN50082-2
Safety: EN50178
LED Indication
LED Indication
LED Indication
LED Indication
LED Indication
TROUBLE LED: Yellow, off during
normal device operation.
INPUT LED: Green, continuously on
if input is within selected range,
flashes otherwise
CAL OK LED: Yellow, continuously
on in normal device operation
Thermocouple Burnout Detect
Thermocouple Burnout Detect
Thermocouple Burnout Detect
Thermocouple Burnout Detect
Thermocouple Burnout Detect
Field configurable upscale,
downscale, or disabled
Humidity (Non-Condensing)
Humidity (Non-Condensing)
Humidity (Non-Condensing)
Humidity (Non-Condensing)
Humidity (Non-Condensing)
Operating: 15 to 95% (@ 45°C)
Soak: 90% for 24 hours (@ 65°C)
Temperature Range
Temperature Range
Temperature Range
Temperature Range
Temperature Range
Operating: 0 to 55°C (32 to 131°F)
Storage: -25 to 70°C (-13 to 158°F)
Power
Power
Power
Power
Power
Consumption: 1.5W typical,
2.5W max.
Range: 9 to 30VDC
Terminations and Wire
Terminations and Wire
Terminations and Wire
Terminations and Wire
Terminations and Wire
Screw terminals for 12-22 AWG.
Use twisted pair for output and
power connections.
Agency Approvals
Agency Approvals
Agency Approvals
Agency Approvals
Agency Approvals
CSA
CSA
CSA
CSA
CSA certified per standard C22.2,
No. 0-M91 and 142-M1987 (File No.
LR42272). UL
UL
UL
UL
UL recognized per stan-
dard UL508 (File No.E99775).
CE
CE
CE
CE
CE
Conformance per EMC directive
89/336/EEC and low voltage 73/
23/EEC.
Mounting
Mounting
Mounting
Mounting
Mounting
32mm or 35mm DIN rail
PIN CONNECTIONS
PIN CONNECTIONS
PIN CONNECTIONS
PIN CONNECTIONS
PIN CONNECTIONS
11
DC Power(+)
12
DC Power (-)
13
No Connection
41
T/C Input(+)
42
T/C Input (-)
43
No Connection
21
DC Power (+)
22
DC Power(-)
23
No Connection
51
Output (+)
52
Output (-)
53
No Connection
Servicing North America:
Fax: (95) 203-359-7807
e-mail: espanol@omega.com
Fax: (514) 856-6886
Fax: (203) 359-7700
Servicing Europe:
Fax: (31) 20 6434643
Fax: 49 (07056) 8540
Postbus 8034, 1180 LA Amstelveen, The Netherlands
Tel: (31) 20 6418405
Toll Free in Benelux: 06 0993344
e-mail: nl@omega.com
Ostravska 767, 733 01 Karvina
Tel: 42 (69) 6311899
e-mail: czech@omega.com
9, rue Denis Papin, 78190 Trappes
Tel:33 0130-621-400
Toll Free in France: 05-4-06342
e-mail: france@omega.com
Daimlerstrasse 26, D-75392 Deckenpfronn, Germany
Tel:49 (07056) 3017
Toll Free in Germany: 0130 11 21 66
e-mail: germany@omega.com
25 Swannington Road,
Broughton Astely, Leicestershire,
LE9 6TU, England
Tel: 44 (1455) 285520
Fax: 44 (1455) 283912
Fax: 33 0130-699-120
Fax: 42 (69) 6311114
P.O. Box 7, Omega Drive
Irlam, Manchester,
M44 5EX, England
Tel: 44 (161) 777-6611
Fax: 44 (161) 777-6622
Toll Free in England: 0800-488-488
e-mail: uk@omega.com
976 Bergar
Laval (Quebec) H7L 5A1
Telephone: (514) 856-6928
e-mail: canada@omega.com
For immediate technical sevice or application assistance:
Sales Service: 1-800-826-6342 / 1-800-TC-OMEGA
SM
Customer Service: 1-800-622-2378 / 1-800-622-BEST
SM
Engineering Service: 1-800-872-9436 / 1-800-USA-WHEN
SM
TELEX: 996404 EASYLINK: 62968934 CABLE: OMEGA
Tel: (95) 800-TC-OMEGA
SM
En Espanol: (203) 359-1660 ext. 2203
One Omega Drive, Box 4047
Stamford, CT 06907-0047
Telephone: (203) 359-1660
e-mail:info@omega.com
USA:
ISO 9001 Certified
Canada:
USA and Canada:
Mexico and
Latin America:
Benelux:
Czech Republic:
France:
Germany/Austria:
United Kingdom:
ISO 9002 Certified
Internet e-mail
info@omega.com
OMEGAnet
SM
On-Line Service
http://www.omega.com
WARRANTY/DISCLAIMER
RETURN REQUEST/ 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.
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
OMEGA ENGINEERING, INC. warrants this unit to be free of manufacturing defects for the life of the 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 specifica-
tion; 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 DIS-
CLAIMED. 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 WAR-
RANTY/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.
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 documentation 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.
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 product are not designed for use in, and should not be used for, patient connected applications.
721-0616-00B 8/97
