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Specications
Input:
Range: 4-20 mA
Impedance:
< 20 ohms (current inputs)
Protection:
withstands up to 24VDC (current input)
120VAC (voltage input) without damage
Common Mode: 2000VAC, input to ground
Output:
Range: 4-10 mA
Current Output Compliance: 15V (750 ohms, max.)
LED Indication:
Green LED indicates power on
Output Accuracy:
< +0.1% of full-scale input typical
< +0.2% maximum @ 23°C including linearity, repeatability and
hysteresis
Adjustability:
Front accessed 10 turn pot., + 50% of range for zero and span
Stability:
< 0.025%/C of full-scale maximum for full-scale and zero
Temperature:
Operating: -5 to 60°C (23 to 140°F)
Storage: -40 to 80°C (-40 to 176°F)
Humidity (non-condensing):
Operating: 15 to 90% @45°C
Soak: 90% for 24 hours @60°C
Wire Terminal:
Socketed screw terminals for 12-22 AWG
Agency Approvals:
UL recognized per standard UL508 (File No E99775).
CE compliance per EMC directive 89/336/EEC and low voltage
73/23/EEC.
Dimensions
DRI-SP-DC
DC Powered 4 to 20 mA Input
Signal Splitter
INSTRUCTION
SHEET
Shop online at omega.comSM e-mail: [email protected]
For latest product manuals: www.omegamanual.info
Multi-Channel Design
2000VAC Isolation
High Density DIN Rail Mounting
M5478/0815
Provides 2 Fully Isolated 4-20 mA Output Signals
in Proportion to a single 4-20 mA Input
Universal DC Power 10.8 to 26.4VDC
Plug-in Terminals
Figure 1. Input Connections
EMC Compliance (CE Mark):
Emmissions: EN50081-1
Immunity: EN50082-2
Safety: EN50178
Isolation:
> 2000VAC between input and output and channel to channel
Response Time:
25mSec typical (10 to 90%)
Power:
10.8 to 26.4VDC, 2W per channel max.
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.com info@omega.
Servicing North America:
U.S.A.:
Omega Engineering, Inc., One Omega Drive,
P.O. Box 4047, Stamford, CT 06907-0047 USA
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.
com
OMEGA’s 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 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.
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 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’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords custo mers the late st
technology and engineering. OMEGA is a registered trademark of OMEGA ENGINEERING, INC.
© COPYRIGHT 2015 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied, translated, or reduced to
any electronic medium-readable form, in whole or in part, without the prior written consent of OMEGA ENGINEERING, INC.
WARRANTY/DISCLAIMER
RETURN REQUESTS/INQUIRIES
FOR NON-WARRANTY RETURNS, 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.
Description
The model DRI-SP-DC is a DIN rail mount, DC input signal
conditioner, with 2000VAC isolation between input output and
power. It provides 2 fully isolated 4-20 mA output signals in
proportion to a single 4-20 mA input.
Factory congured input and output ranges support standard
4-20 mA industrial control signals. Front accessed zero and
span potentiometers allow 50% adjustment of offset and gain
to compensate for sensor errors or signal losses.
The DRI-SP-DC features plug-in screw terminals for easy
installation . Two or more modules can slide together and
interlock for solid, high density mounting (remove either the DIN
rail foot or the adjacent unit’s faceplate, for right side or left side
mounting, respectively). The module to be attached will easily
slide onto the side of the mounted unit.
Application
DC input four-wire transmitters are used to isolate and convert
DC voltage or current signals into proportional, standard
industrial control signals such as 4-20mA or 0-10V. Typically
an industrial control system such as a DCS or PLC requires
standard industrial control signals with full isolation to ensure
reliable, strong signals.
In most industrial process control or data acquisition applications,
several different input sources, including voltages and currents
from various eld instruments (e.g. level, ow, pressure and
position sensors), are common. Four-wire transmitters accept
these eld inputs and provide the controller (DCS & PLC) with the
standard industrial signal it requires. The four-wire transmitter
will increase the signal drive to high impedance loads and may
improve resolution of the process variable.
Operation
The DRI-SP-DC operates as a four-wire transmitter; each
channel derives its power from an independent, transformer
isolated DC power source (10.8 to 26.4VDC).
Calibration
Note: For best results, calibration should be performed with the
intended output load, in the operating environment, mounted
on a DIN rail, allowing at least one hour for thermal equilibrium
of the system.
1) To check calibration, connect the input to a calibrated DC
source. Connect the output to a DC current meter and the input
power to a DC source (10.8 to 26.4VDC) capable of providing
up to 0.5 Amps.
2) Set the calibrator to the specied minimum DC input value and
adjust the zero potentiometer for minimum (e.g. 4mA) output.
3) Set the calibrator to the specied maximum DC input value
and adjust the span potentiometer for maximum (e.g. 20mA)
output.
4) Repeat steps 2 and 3 to validate calibration to the output load.
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