Omega | iDRN-TC | Owner Manual | Omega iDRN-TC Owner Manual

Omega iDRN-TC Owner Manual
2
START HERE
iDRN-TC
INPUT TYPE:
Type J,K,T,E,R,S,B,N, J DIN
THERMOCOUPLE INPUT
General Description:
The iDRN Series of DIN rail-mountable signal conditioners
are available for Thermocouple, RTD, Strain, Process, AC
Voltage, AC Current and Pulse/Totalizer input types.
The factory calibrated signal conditioners are ideal for all
process and power monitoring applications, they feature 3way isolation, high accuracy input, programmable outputs,
and are excellent front end interfaces for programmable logic
controllers or data acquisition systems. For maximum user
configurability the signal conditioners allow complete inputoutput scaling via a RS-232 connection to any PC or PLC.
Software Description:
The signal conditioner configuration program is a MS
DOS/Windows program (this manual is for the Windows
version). It is designed especially for the iDRN Series Signal
Conditioner. This program will run on any PC with Windows
application and will start automatically.
Free Serial Communication software and ActiveX Controls
are on the CD-ROM enclosed with this shipment.
To download the latest software release
(or request a free CD-ROM) please go to:
www.omega.com/software
What You need:
•Your choice of the signal conditioner
•IBM PC or compatible
•Windows software 3.1 or higher, or Windows 95/98
•RJ12 connector with telephone cable
•Adapter (DB9 or DB25 to RJ12)
COMPUTER
CONNECTION
(DB9 or DB25)
RS-232 to
RS-485
CONVERTER
HALF-DUPLEX
#CAT-285
Range °F
-346 to 1400°F
-454 to 2500°F
-454 to 752 °F
-454 to 1832 °F
-58 to 3214 °F
+212 to 3308 °F
-454 to 2372°F
-328 to 1652 °F
Range °C
-210 to 760 °C
-270 to 1372 °C
-270 to 400 °C
-270 to 1000 °C
-50 to 1768 °C
+100 to 1820 °C
-270 to 1300 °C
-200 to 900 °C
ISOLATION:
Dielectric strength per 1 minute test based on EN 61010 for
50 Vdc or Vrms working voltage.
Three way Isolation:
• Power to Signal Input: 1800V Peak
• Power to Analog Output/Communication: 1800V Peak
• Signal Input to Analog Output/Communication: 1400V Peak
ADAPTOR (DB9/25 to RJ12)
#DB9-RJ12, #DB25-RJ12
Operation:
ANALOG OUTPUT STEP RESPONSE TIME:
2 seconds to 99% of final value
INPUT POWER:
10 to 32 Volt DC
POWER CONSUMPTION:
2.4 Watts (100 mA at 24 V DC)
Power Input and Analog Output Setup:
STORAGE TEMPERATURE:
-40 to +85 °C
To connect the signal input proceed as follows:
RELATIVE HUMIDITY:
90% at 40 °C non-condensing
INPUT OVER-VOLTAGE PROTECTION:
250 V AC for 1 minute
Introduction:
The thermocouple input signal conditioners are high
performance instruments used to measure temperature for a
variety of different T/C probe. The following thermocouple
types may be used with the T/C input signal conditioners: J,
K, T, E, R, S, B, N, and J DIN. Key features of the signal
conditioners are built in cold junction compensation, patented
algorithm for linearization of thermocouple to confirm to
NIST tables, and a built-in RS232 interface for easy custom
scaling. The RS232 interface may also be used for digital
transmission of input signal to a computer or a PLC.
Additional features include three way isolation between DC
power, signal input and analog output/RS232.
ANALOG TO DIGITAL TECHNIQUE:
Dual slope
READ RATE:
3 readings/second, automatic polarity
ACCURACY AT 25 °C:
±1°C for temperature above -150 °C
±2°C for temperature below -150 °C
RESPONSE TIME:
To verify the response time, check the carriage return <CR>,
it will be sent at the end of the response. You can send
another command after you receive the <CR>.
i.e.
send: *X01
response: X01<DATA><CR>
WARM UP TO RATED ACCURACY:
30 minutes
ANALOG OUTPUT SIGNAL TYPE:
Voltage: 0-10 Volt, maximum current 10mA
Current: 0-20 mA or 4-20 mA, maximum compliance
voltage 10 Volts (maximum loop resistance 500Ω)
Note: When connecting a thermocouple input signal, ensure
that the input signal wires are connected correctly. All
thermocouples have a positive and negative lead which if not
connected properly will cause a wrong temperature reading.
Signal conditioners provide certain degree of protection
against high voltage spikes (250 V AC for 1 minute) which
may be induced on the thermocouple wires. To ensure signal
integrity and safe operation never run the signal inputs wires
in the same conduit with ac power lines.
OPERATING AMBIENT:
-5 to +55 °C
COMMON MODE REJECTION:
100 dB
STEP RESPONSE FOR RS232 OUTPUT:
2 seconds to 99% of the final value
(Filter time constant = 64)
SIGNAL CONDITIONER MODULE
RJ12 CONNECTOR
with CABLE
Input Type
J
K
T
E
R, S
B
N
J DIN
4
ANALOG OUTPUT LINEARITY:
0.1% of FS
TEMPERATURE STABILITY:
0.05 °C/°C
Setting up your System
COMPUTER
POWER
CONNECTION
3
DIMENSIONS:
1. Connect a DC power supply with an output voltage
between 10 to 32 Volt DC to a signal conditioner (J1).
Note: If power supply used has current limiting, it may not
be able to power the signal conditioners if the available
output voltage is around 10 Volt, since the peak current may
reach 1 to 5 Amp for a few milliseconds.
2. Determine the thermocouple types used to measure the
temperature.
3. Determine the positive and negative leads of the
thermocouple and observe the polarity marked on the signal
input cover. Then connect wires accordingly.
4. Ensure that if the selected thermocouple type is different
from the default then change the internal settings in the
EEPROM. This can only be done via the RS232
communication and using the configuration software
explained later in this manual.
5. Connect the thermocouple wires to the screw terminal,
and ensure that the screws are tight.
6. To verify that the set up is correct, you may connect a
DVM to the analog output. Once connected, power the signal
conditioner. If you have a thermocouple simulator then
simulate a millivolt signal corresponding to the desired
temperature. Measure and compare the analog output with
expected values. If you are running the configuration
software then the temperature corresponding to the millivolt
input may be displayed.
5
Note: When calibrating thermocouples using standard
millivolt input signal source, pay attention to the cold junction
compensation which is at work. Suppose you want to
simulate a millivolt signal corresponding to 500 °C for type J
thermocouple, while the signal conditioner is operating in a
room at a temperature of 25 °C. If you look up the millivolt
output for type J thermocouple in the NIST handbook, you
will find that type J thermocouple outputs 27.388 mV at
500 °C. If you applied this signal 27.388 millivolt to the signal
conditioner, you will notice that it would show a temperature
approximately 25 °C higher or about 525 °C. The reason is
that a real thermocouple is a differential device meaning that
it generates a signal that is proportional to the difference in
temperature between it’s cold and hot junction. So the real
thermocouple’s signal would have been about 1.277 millivolt
less corresponding to the 25°C room temperature. Therefore
you must apply a signal equal to: Signal input = 27.3881.277=26.111 mV. Applying this signal 26.111 will display the
correct temperature.
7. To view/change the scaling that relates the analog output
to signal input: Connect the RS232 output of the signal
conditioner to an available serial port of a computer. The
cable and the DB9 or DB25 connectors are available as an
option.
8. Turn on the computer, start Windows 3.0 or higher and
run the Signal Conditioner Configuration Setup Program.
9. To start the configuration program, you need to indicate
which serial port is to be used for serial communication by
checking the appropriate check box on the opening menu.
Note: It is not necessary to know the serial communication
protocol. i.e. baud rate, parity, 7/8 data bit and stop bit; the
program will determine this information automatically.
However, it is a good practice to mark the protocols used on
the signal conditioner label if different from default.
10. Once the program starts it will automatically detect the
signal conditioner configuration and will display a window of
available options. To view the signal input click on the
display on/off.
11. To change analog output scaling choose Analog Output
Scaling and enter the desired values.
12. Once the custom scaling is finished, ensure that Send
Configuration is clicked, otherwise the changes will not
take effect.
13. The input/output scaling may be fine tuned, while both
communication and analog output are active. You may make
a change to the analog output in the configuration program,
and watch the DVM connected to analog output of the signal
conditioner follow the new settings.
14. You may save or print a particular configuration by
selecting the file menu. It’s always a good practice to both
print and save the scaling of each signal conditioner.
6
15. If the program is not able to establish communication
then an error message is displayed. This happens either when
the wrong serial port is specified or when the cable is
disconnected.
16. The procedure to disable Continuous Mode and change
the iDRN to Command Mode is as follows:
Using HyperTerminal, or any serial communication program,
type: Ctrl + S
To change the device to Command Mode, type: ^AE
To change the Bus Format Register, type: *W0814
To reset the device,type: *Z01
Cycle power to the unit.
WARNING: These products are not designed for use in, and should not be used
for, patient-connected applications.
This device is marked with the international caution symbol. It is important to
read the Setup Guide before installing or commissioning this device, as the
guide contains important information relating to safety and EMC.
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 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.
PATENT NOTICE: This product is covered by one or more of the following
patents: U.S. Pat. No. Des. 336,895, 5,274,577/ Canada 2052599, 2052600/ Italy
1249456, 1250938/ France Brevet No. 91 12756/ Spain 2039150, 2048066/ UK
Patent No. GB2 249 837, GB2 248 954/ Germany DE 41 34398 C2.
TRADEMARK NOTICE:
®
, omega.com are trademarks of OMEGA Engineering, Inc.
®
Modbus Register Definition
Reg. #
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
10
11
12
13
14
15
16
Read Function
Input Range
Input/Output Config.
Decimal Point
Filter Time Constant
Reading/Output Scale
Reading/Output Offset
Comm. Parameters
Comm. Bus Format
Comm. Data Format
Comm. Device Addr.
Comm. Recog. Char.
Unit of measure
Gate Time
Debounce Time
Transmit Time
Main Value
Peak Value
Valley Value
Not Supported
Not Supported
Not Supported
Not Supported
Write Function
# of byte
Input Range
1
Input/Output Conf.
1
Decimal Point
1
Filter Time Constant
1
Not supported
3
Not supported
3
Comm. Parameters
1
Comm. Bus Format
1
Comm. Data Format
1
Comm. Device Addr.
1
Comm. Recog. Addr.
1
Not supported
3
Gate Time
1
Debounce Time
1
Transmit Time
2
Hard Reset
3
Reset Peak
1
Reset Valley
1
L.S. bytes Output Scale
2
M.S. byte Output Scale
1
M.S. bytes Output Offset
2
L.S. byte Output Offset
1
Note:
1) Main, Peak, Valley value: 4 bytes will send from the unit
a. Highest byte always 00h.
b. 2nd Highest byte: (MSB is sign (1=negative, 0=positive),
next 3 bits are number of decimal points).
c. Low nibble of second byte, and lowest 2 bytes are the
value.
d. The decimal point register has to set to: 1, 2, 3, or 4.
2) Bus Format: Bit 5 1/0 = Modbus/Newport
3) Output Scale/Offset Write:
Due to write single only, two write operation is needed to
write scale/offset, and to make it effective it needs to
follow with Hard Reset command.
4) To configure to Newport protocol, set bit 5 of Bus Format
to low and follow with Hard Reset command.
iDRN-TC
Thermocouple Input Signal Conditioner
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 if 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.
OMEGAnet® On-Line Service
www.omega.com
Servicing North America:
USA:
ISO 9001 Certified
Canada:
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.
One Omega Drive, P.O. Box 4047
Stamford CT 06907-0047
TEL: (203) 359-1660
FAX: (203) 359-7700
e-mail: info@omega.com
976 Bergar
Laval (Quebec) H7L 5A1
TEL: (514) 856-6928
e-mail: info@omega.ca
FAX: (514) 856-6886
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®
Mexico and
Latin American:
TEL: (001)800-TC-OMEGA®
FAX: (001) 203-359-7807
En Español: (001) 203-359-7803
e-mail: espanol@omega.com
Benelux:
Postbus 8034, 1180 LA Amstelveen, The Netherlands
TEL: +31 20 3472121
FAX: +31 20 6434643
Toll Free in Benelux: 0800 0993344
e-mail: sales@omegaeng.nl
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.
Internet e-mail
info@omega.com
Servicing Europe:
Czech Republic:
FOR NON-WARRANTY REPAIRS, consult
OMEGA for current repair charges. Have
the following information available BEFORE
contacting OMEGA:
Frystatska 184, 733 01 Karviná
TEL: +420 59 6311899
e-mail: info@omegashop.cz
France:
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.
11, rue Jacques Cartier, 78280 Guyancourt
TEL: +33 1 61 37 29 00 FAX: +33 1 30 57 54 27
Toll Free in France: 0800 466 342
e-mail: sales@omega.fr
Germany/Austria:
Daimlerstrasse 26, D-75392 Deckenpfronn, Germany
TEL: +49 7056 9398-0
FAX: +49 7056 9398-29
Toll Free in Germany: 0800 639 7678
e-mail: info@omega.de
United Kingdom:
One Omega Drive
River Bend Technology Centre
Northbank, Irlam Manchester M44 5BD United Kingdom
TEL: +44 161 777 6611 FAX: +44 161 777 6622
Toll Free in England: 0800 488 488
e-mail: sales@omega.co.uk
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 2004 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.
M2538/0204
ISO 9002 Certified
FAX: +420 59 6311114
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising