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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.

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, i n
w h o l e   o r   i n   p a r t ,   w i t h o u t   p r i o r   w r i t t e n   c o n s e n t   o f   O M E G A   E N G I N E E R I N G ,   I N C .

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.

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.

 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 d a m a g e   w h a t s o e v e r   a r i s i n g   o u t   o f   t h e   u s e   o f   t h e
P r o d u c t ( s )   i n   s u c h   a   m a n n e r.

Summary of Contents for DRA-DCC-8

Page 1: ...DRA DCC 8 DIGITAL TO 8 CURRENT LOOP CONVERTER User sGuide http www omega com e mail info omega com...

Page 2: ...02 Certified Broughton Astley Leicestershire Irlam Manchester LE9 6TU England M44 5EX England Tel 44 1455 285520 Tel 44 161 777 6611 FAX 44 1455 283912 FAX 44 161 777 6622 Toll Free in England 0800 48...

Page 3: ...Interface 6 2 The E ENABLE Terminal 7 SERIAL CONTROL MODE 7 1 RS232c RS422 Select 7 2 RS422 Termination 7 3 Serial Control Switch Settings 7 4 Serial Communication Parameters 7 4 1 Baud Rate Select 7...

Page 4: ...river Press down gently on the plastic springloaded tabs located in the slots either side of the unit c Disconnect the flat connector which couples the LED circuit on the front panel d Replace the blo...

Page 5: ...y an internal array of 8 DIP switches as follows 4 20 or 0 20mA output current mode Parallel control mode Serial control mode Self test mode 5 1 0 20 OR 4 20mA OUTPUT CURRENT MODE Two current output s...

Page 6: ...ture The data should be valid for at least 160 microseconds S1 S2 S3 S4 S5 S6 S7 SELF TEST 1 ON OFF X OFF X OFF ON OFF X MODE ON ON OFF X SELF TEST 2 SELF TEST 3 S1 S2 S3 S4 S5 S6 S7 PARALLEL MODE OFF...

Page 7: ...election is carried out by controlling the E inputs 7 SERIAL CONTROL MODE Figure 3 7 1 RS232c RS422 SELECT he DRA DCC 8 is equipped with two serial communication ports The RS232c and the RS422 A jumpe...

Page 8: ...cknowledgment stating the DRA DCC 8 ID number and the addressed channel number Status report Three types of command formats are available 7 4 3 1 WITHOUT ECHO BACK FORMAT A ID CODE CHANNEL VALUE CR Th...

Page 9: ...T S ID CODE CR The addressed DRA DCC 8 unit will respond with the values stored in its eight channels The response will start with S ID code following with eight channel values separated with commas a...

Page 10: ...in a multidrop configuration using the RS422 communication port The controller s RS 422 transmitter is connected to the units receivers while the controller s RS 422 receiver is connected to the units...

Page 11: ...2 Monitor all the 8 channels in 4mA state and calibrate the Zero trimmer so that their average readings is 4 000mA Then repeat for 20mA state and calibrate the Span trimmer so that their average read...

Page 12: ...Enable E 0 0 0 5V 4 1 60V 160 microsecond 6000 updates per second RS232c full duplex RS422 full duplex 300 4800 9600 19200 BPS Even One Reports as interrogated Up to eight units 8 continues current lo...

Page 13: ...EGA 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...

Page 14: ...Paddlewheel Systems Totalizers Batch Controllers pH CONDUCTIVITY pH Electrodes Testers Accessories Benchtop Laboratory Meters Controllers Calibrators Simulators Pumps Industrial pH Conductivity Equipm...

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