Omega DRLP User guide

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DRLP SERIES

Isolated DIN Rail Mount

2-Wire Trasmitters

MADE IN

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User’s Guide

®

®

Servicing North America:

U.S.A.: Omega Engineering, Inc., One Omega Drive, P.O. Box 4047

ISO 9001 Certified Stamford, CT 06907-0047 USA

Toll Free: 1-800-826-6342 TEL: [phone]
FAX: [phone] e-mail: [email protected]

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Laval (Quebec), H7L 5A1 Canada
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FAX: [phone] e-mail: [email protected]

For immediate technical or application assistance:

U.S.A. and Canada: Sales Service: 1-800-826-6342/1-800-TC-OMEGA

®

Customer Service: 1-800-622-2378/1-800-622-BEST

®

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®

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Latin America: [email protected] e-mail: [email protected]

º

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733 01 Karviná, Czech Republic
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Toll-Free: 0800 6397678 TEL: [phone]
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United Kingdom: OMEGA Engineering Ltd.

ISO 9001 Certified

One Omega Drive, River Bend Technology Centre, Northbank
Irlam, Manchester M44 5BD United Kingdom
Toll-Free: 0800-488-488 TEL: [phone]
FAX: [phone] e-mail: [email protected]

OMEGAnet®Online Service Internet e-mail

omega.com [email protected]

It is the policy of OMEGA Engineering, Inc. 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 accepts no liability for any
errors it contains, and reserves the right to alter specifications without notice.
WARNING: These products are not designed for use in, and should not be used for, human applications.

®

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’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
co mponent upon whi c h liab ility 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) N UMBE R FRO M OME G A’S CUS T OME R SERVIC E DEPA RT M ENT ( IN OR D ER T O AVOI D
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 registered trademark of OMEGA ENGINEERING, INC.
© Copyright 2012 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.

DRLP Series

Isolated DIN Rail Mount 2-Wire Transmitters

Features

±0.03% Accuracy (Typical)

•

±0.01% Linearity

•

1500Vrms Transformer Isolation & 240Vrms Field-side

•

Protection

ANSI/IEEE C37.90.1 Transient Protection

•

Wide Loop Supply Voltage, 10.8V to 60V

•

5-Pole Low-Pass Filtering

•

Up to 160dB CMR

•

85dB NMR at 60Hz, 80dB at 50Hz

•

Protected Against Reverse Connection of Loop Voltage

•

–40°C to +80°C Operating Temperature

•

Mounts on DIN Rail EN 50022, 35x7.5 or 35x15

•

CSA C/US Certied

•

(Class I, Division 2, Groups A, B, C, D)

CE Compliant

•

Manufactured per RoHS Directive 2002/95/EC

•

Instrument Class® Performance

“Best of Breed” accuracy, linearity, stability and noise specications.

Outstanding protection and isolation performance for Input, Output and
Power connections. Capable of operating on the widest of loop supply
power and over the broadest operating temperature range!

Description

Omega’s new DRLP series of loop powered 2-wire transmitters consists
of seven family groups with a total of 48 transmitter models that interface
to a wide variety of voltage, current, temperature and position measuring
devices. The DRLP is the latest introduction of products available from

Omega, which provide superior specications such as ±0.03% accuracy,
ve poles of ltering, 1500Vrms continuous isolation, low output noise,

and much more.

The DRLP 2-wire transmitter conditions and sends analog signals from

sensors located in the “eld” to monitoring and control equipment,

usually computers, located thousands of feet away in central control
areas. The DRLP accepts a wide range of inputs, including millivolt, volt,
milliamp, thermocouple, RTD, potentiometer, and slide wire. It operates
on power from a 2-wire signal loop and modulates the supply current to
represent the input signal within a 4 to 20-milliamp range.

Two-wire transmission loops are very economical methods for connect­ing sensors to distant control rooms. Since the DRLP operates from
the signal loop current, no additional, expensive power and wiring are

required. Only low cost, twisted pair wiring is needed.

4

4

ANALOG VOLTAGE INPUT TRANSMITTERS

MODEL INPUT RANGE MODEL INPUT RANGE
DRLP-MV1 ±10mV DRLP31-01 ±1V
DRLP-MV2 ±50mV DRLP31-02 ±5V
DRLP-MV3 ±100mV DRLP31-03 ±10V
DRLP-MV4 0 - 10mV DRLP31-04 0 - 1V
DRLP-MV5 0 - 50mV DRLP31-05 0 - 5V
DRLP-MV6 0 - 100mV DRLP31-06 0 - 10V

DRLP31-07 ±20V
DRLP31-08 0 - 20V

ANALOG CURRENT INPUT TRANSMITTERS

MODEL INPUT RANGE
DRLP-C1 4 to 20mA
DRLP-C2 0 to 20mA

LINEARIZED 2- OR 3-WIRE RTD INPUT TRANSMITTERS

MODEL TYPE** INPUT RANGE
DRLP-RTD1 100ΩPt –100°C to +100°C (–148°F to +212°F)
DRLP-RTD2 100ΩPt 0°C to +100°C (+32°F to +212°F)
DRLP-RTD3 100ΩPt 0°C to +200°C (+32°F to +392°F)
DRLP-RTD4 100ΩPt 0°C to +600°C (+32°F to +1112°F)
DRLP-RTD5 100ΩPt 0°C to +400°C (+32°F to +752°F)
DRLP-RTD6 120ΩNi 0°C to +300°C (+32°F to +572°F)

POTENTIOMETER INPUT TRANSMITTERS

MODEL INPUT RANGE
DRLP-P1 0 to 100Ω
DRLP-P2 0 to 500Ω
DRLP-P3 0 to 1kΩ
DRLP-P4 0 to 10kΩ

THERMOCOUPLE INPUT TRANSMITTERS

MODEL TYPE

‡

INPUT RANGE
DRLP-ITC-J J –100°C to +760°C (–148°F to +1400°F)
DRLP-ITC-K K –100°C to +1350°C (–148°F to +2462°F)
DRLP-ITC-T T –100°C to +400°C (–148°F to +752°F)
DRLP-ITC-E E 0°C to +900°C (+32°F to +1652°F)
DRLP-ITC-R R 0°C to +1750°C (+32°F to +3182°F)
DRLP-ITC-S S 0°C to +1750°C (+32°F to +3182°F)
DRLP-ITC-B B 0°C to +1800°C (+32°F to +3272°F)
DRLP-ITC-N N –100°C to +1300°C (–148°F to +2372°F)

LINEARIZED THERMOCOUPLE INPUT TRANSMITTERS

MODEL TYPE

‡

INPUT RANGE
DRLP-LTC-J1 J 0°C to +760°C (+32°F to +1400°F)
DRLP-LTC-J2 J –100°C to +300°C (–148°F to +572°F)
DRLP-LTC-J3 J 0°C to +500°C (+32°F to +932°F)
DRLP-LTC-K1 K 0°C to +1000°C (+32°F to +1832°F)
DRLP-LTC-K2 K 0°C to +500°C (+32°F to +932°F)
DRLP-LTC-K3 K –100°C to +1350°C (–148°F to +2462°F)
DRLP-LTC-K4 K 0°C to +1200°C (+32°F to +2192°F)
DRLP-LTC-T1 T –100°C to +400°C (–148°F to +752°F)
DRLP-LTC-T2 T 0°C to +200°C (+32°F to +392°F)
DRLP-LTC-E E 0°C to +1000°C (+32°F to +1832°F)
DRLP-LTC-R R +500°C to +1750°C (+932°F to +3182°F)
DRLP-LTC-S S +500°C to +1750°C (+932°F to +3182°F)
DRLP-LTC-B B +500°C to +1800°C (+932°F to +3272°F)
DRLP-LTC-N N –100°C to +1300°C (–148°F to +2372°F)

‡

THERMOCOUPLE ALLOY COMBINATIONS

Standards: DIN IEC 584, ANSI MC96-1-82, JIS C 1602-1981

TYPE MATERIAL
J Iron vs. Copper-Nickel
K Nickel-Chromium vs. Nickel-Aluminum
T Copper vs. Copper-Nickel
E Nickel-Chromium vs. Copper-Nickel
R Platinum-13% Rhodium vs. Platinum
S Platinum-10% Rhodium vs. Platinum
B Platinum-30% Rhodium vs.Platinum-6%Rhodium
N Nickel-14.2% Chromium-1.4% Silicon vs. Nickel-4.4%

Silicon-0.1% Magnesium

**RTD STANDARDS

TYPE ALPHA COEFFICIENT DIN JIS
100Ω Pt 0.00385 DIN 43760 JIS C 1604-1989
120Ω Ni 0.00672

DRLP Selection Guide

5

DRLP-MV/DRLP-V

Analog Voltage Input Transmitters

Accepts Millivolt and Voltage Level Signals

•

Process Current Output

•

1500Vrms Transformer Isolation

•

ANSI/IEEE C37.90.1 Transient Protection

•

Input and Output Protected to 240VAC Continuous

•

Up to 60V Loop Voltage

•

160dB CMR

•

85dB NMR at 60Hz, 80dB at 50Hz

•

±0.03% Accuracy

•

±0.01% Linearity

•

Easily Mounts on Standard DIN Rail

•

CSA C/US Certied

•

CE Compliant

•

DescriptionFeatures

Each DRLP-MV and DRLP-V voltage input transmitter provides a single

channel of analog input which is ltered, isolated, amplied, and convert­ed to a process current output (Figure 1). Signal ltering is accomplished
with a ve-pole lter, which provides 85dB of normal-mode rejection
at 60Hz and 80dB at 50Hz. An anti-aliasing pole is located on the eld

side of the isolation barrier, and the other four are on the process loop

side. After the initial eld-side ltering, the input signal is chopped by a

proprietary chopper circuit. Isolation is provided by transformer coupling,

again using a proprietary technique to suppress transmission of common

mode spikes or surges.

Special input and output circuits on the DRLP-MV and DRLP-V transmit­ters provide protection against accidental connection of power-line

voltages up to 240VAC and against transient events as dened by ANSI/

IEEE C37.90.1. Signal and loop power lines are secured to the module
using screw terminals, which are in pluggable terminal blocks for ease of

system assembly and reconguration.

The modules have excellent stability over time and do not require reca­libration, however, zero and span settings are adjustable up to ±10% to
accommodate situations where ne-tuning is desired. The adjustments

are made using potentiometers located under the front panel label and
are non-interactive for ease of use.

Figure 1: DRLP-MV/DRLP-V Block Diagram

6

6

Specifications Typical at T

=+25°C and +24V loop voltage

A

Ordering Information

Module DRLP-MV DRLP-V

Input Range
Input Bias Current
Input Resistance
Normal
Power Off
Overload
Input Protection
Continuous
Transient
CMV, Input to Output
Continuous
Transient
CMR (50Hz or 60Hz)
NMR

Adjustability

Accuracy
Conformity
Stability
Offset
Gain
Noise
Output, 100kHz
Bandwidth, –3dB
Response Time, 90% Span

(1)

±10mV to ±100mV

±0.5nA

50MW

66kW
66kW

240Vrms max

ANSI/IEEE C37.90.1

1500Vrms max

ANSI/IEEE C37.90.1

160dB

85dB at 60Hz, 80dB at 50Hz

±10% Zero and Span

±0.03%
±0.01%

±20ppm/°C
±80ppm/°C

3µArms

3Hz

165ms

±1V to ±20V

±0.05nA

2MW
2MW
2MW

*
*

*
*
*
*

*
*
*

*
*

*
*
*

Module Input Range

DRLP-MV1
DRLP-MV2
DRLP-MV3
DRLP-MV4
DRLP-MV5
DRLP-MV6

DRLP-V1
DRLP-V2
DRLP-V3
DRLP-V4
DRLP-V5
DRLP-V6
DRLP-V7
DRLP-V8

–10mV to +10mV
–50mV to +50mV

–100mV to +100mV

0mV to +10mV
0mV to +50mV

0mV to +100mV

–1V to +1V
–5V to +5V

–10V to +10V

0V to +1V
0V to +5V

0V to +10V

–20V to +20V

0V to +20V

Output Range
Output Limits
Under-range
Over-range
Output Protection
Reverse Polarity
Over-voltage
Transient
Loop Supply Voltage
Loop Supply Sensitivity
Turn-On Delay

Environmental
Operating Temp. Range
Storage Temp. Range
Relative Humidity
Emissions EN61000-6-4
Radiated, Conducted
Immunity EN61000-6-2
RF
ESD, EFT

Mechanical Dimensions
(h)(w)(d)
Mounting

4mA to 20mA

2.8mA
29mA

Continuous
240Vrms continuous
ANSI/IEEE C37.90.1

10.8V to 60V
±0.0005%/V

400ms

–40°C to +80°C
–40°C to +80°C

0 to 95% Noncondensing

ISM, Group 1

Class A

ISM, Group 1

Performance A ±0.5% Span Error

Performance B

2.95” x 0.89” x 4.13”

(75mm x 22.5mm x 105mm)

DIN EN 50022 –35x7.5 or –35x15 rail

*

*
*

*
*
*
*
*
*

*
*
*

*
*
*

NOTES:

* Same specication as DRLP-MV. (1) Includes linearity, hysteresis and repeatability.

777

Analog Current Input Transmitters

Accepts Milliamp Level Signals

•

Process Current Output

•

1500Vrms Transformer Isolation

•

ANSI/IEEE C37.90.1 Transient Protection

•

Input and Output Protected to 240VAC Continuous

•

Up to 60V Loop Voltage

•

105dB CMR

•

±0.03% Accuracy

•

±0.01% Linearity

•

Easily Mounts on Standard DIN Rail

•

CSA C/US Certied

•

CE Compliant

•

DRLP-C

DescriptionFeatures

Each DRLP-C current input transmitter provides a single channel of ana-

log input which is ltered, isolated, amplied, and converted to a process
current output (Figure 1). Signal ltering is accomplished with a ve-pole
lter, which provides 80dB per decade of normal-mode rejection above
100Hz. An anti-aliasing pole is located on the eld side of the isolation

barrier, and the other four are on the process loop side. After the initial
eld-side ltering, the input signal is chopped by a proprietary chop­per circuit. Isolation is provided by transformer coupling, again using a

proprietary technique to suppress transmission of common mode spikes

or surges.

Special input and output circuits on the DRLP-C transmitters provide
protection against accidental connection of power-line voltages up

to 240VAC and against transient events as dened by ANSI/IEEE

C37.90.1. Signal and loop power lines are secured to the module using
screw terminals, which are in pluggable terminal blocks for ease of

system assembly and reconguration.

The modules have excellent stability over time and do not require reca­libration, however, zero and span settings are adjustable up to ±10% to
accommodate situations where ne-tuning is desired. The adjustments

are made using potentiometers located under the front panel label and
are non-interactive for ease of use.

Figure 1: DRLP-C Block Diagram

8

8

Specifications Typical at T

=+25°C and +24V loop voltage

A

Ordering Information

Module DRLP-C

Input Range
Current Conversion Resistor
Input Protection
Continuous
Transient
CMV, Input to Output
Continuous
Transient
CMR (50Hz or 60Hz)
NMR (–3dB at 100Hz)

Adjustability

Accuracy
Conformity
Stability
Offset
Gain
Noise
Output, 100kHz
Bandwidth, –3dB
Response Time, 90% Span

Output Range
Output Limits
Under-range
Over-range
Output Protection
Reverse Polarity
Over-voltage
Transient
Loop Supply Voltage
Loop Supply Sensitivity
Turn-On Delay

(1)

0-20mA or 4-20mA

50.00W

240Vrms max

ANSI/IEEE C37.90.1

1500Vrms max

ANSI/IEEE C37.90.1

105dB

80dB/decade Above 100Hz

±10% Zero and Span

±0.03%
±0.01%

±30ppm/°C
±90ppm/°C

3µArms

100Hz

5ms

4mA to 20mA

2.8mA
29mA

Continuous

240Vrms Continuous

ANSI/IEEE C37.90.1

10.8V to 60V
±0.0005%/V

400ms

Module Input Range

DRLP-C1
DRLP-C2

4-20mA
0-20mA

Environmental
Operating Temp. Range
Storage Temp. Range
Relative Humidity
Emissions EN61000-6-4
Radiated, Conducted
Immunity EN61000-6-2
RF
ESD, EFT

Mechanical Dimensions
(h)(w)(d)
Mounting

–40°C to +80°C
–40°C to +80°C

0 to 95% Noncondensing

ISM, Group 1

Class A

ISM, Group 1

Performance A ±0.5% Span Error

Performance B

2.95” x 0.89” x 4.13”

(75mm x 22.5mm x 105mm)

DIN EN 50022 –35x7.5 or –35x15 rail

9

DRLP-RTD

Linearized 2- or 3-Wire RTD Input Transmitters

Features

Interfaces to 100W Platinum or 120W Nickel RTDs

•

Linearizes RTD Signal

•

Process Current Output

•

1500Vrms Transformer Isolation

•

ANSI/IEEE C37.90.1 Transient Protection

•

Input and Output Protected to 240VAC Continuous

•

Up to 60V Loop Voltage

•

160dB CMR

•

85dB NMR at 60Hz, 80dB at 50Hz

•

±0.1% Accuracy

•

±0.025% Conformity

•

Easily Mounts on Standard DIN Rail

•

CSA C/US Certied

•

CE Compliant

•

Description

Each DRLP RTD input transmitter provides a single channel of RTD input

which is ltered, isolated, amplied, linearized, and converted to a process
current output (Figure 1). Signal ltering is accomplished with a ve-pole lter,
which provides 85dB of normal-mode rejection at 60Hz and 80dB at 50Hz.
An anti-aliasing pole is located on the eld side of the isolation barrier, and the

other four are on the process loop side. After the initial eld-side ltering, the

input signal is chopped by a proprietary chopper circuit. Isolation is provided by
transformer coupling, again using a proprietary technique to suppress transmis­sion of common mode spikes or surges.

RTD excitation is provided from the transmitter using a precision current
source. The excitation currents are very small (0.26mA max for 100W Pt and
120W Ni) which minimizes self-heating of the RTD. Linearization is achieved by
creating a non-linear transfer function through the module itself. This non-linear

transfer function is congured at the factory and is designed to be equal and
opposite to the specic RTD non-linearity. Lead compensation is achieved by

matching two current paths thus canceling the effects of lead resistance.

The specications listed are for a 3-wire connection. A 2-wire connection of
the RTD to the module is also possible and is achieved by adding a jumper

between pin 5 (+EXC) and pin 6 (+IN) on the terminal block and connecting the

RTD leads between pin 6 (+IN) and pin 7 (-IN). The 2-wire connection nullies

the lead resistance compensation feature of the module.

Special input and output circuits on the DRLP transmitters provide protection
against accidental connection of power-line voltages up to 240VAC and against

transient events as dened by ANSI/IEEE C37.90.1. Signal and loop power

lines are secured to the module using screw terminals, which are in pluggable

terminal blocks for ease of system assembly and reconguration.

The modules have excellent stability over time and do not require recalibration,
however, zero and span settings are adjustable up to ±3% to accommodate
situations where ne-tuning is desired. The adjustments are made using

potentiometers located under the front panel label and are non-interactive for
ease of use.

Figure 1: DRLP-RTD Block Diagram

10

10

Specifications Typical at T

=+25°C and +24V loop voltage

A

Module DRLP-RTD

Ordering Information

Module Input Range Accuracy

(1)

Input Range

Input Resistance
Normal
Power Off
Overload
Input Protection
Continuous
Transient
CMV, Input to Output
Continuous
Transient
CMR (50Hz or 60Hz)
NMR

Adjustability

Accuracy
Conformity
Stability
Offset
Gain
Sensor Excitation Current
Lead Resistance Effect
Noise
Output, 100kHz
Bandwidth, –3dB
Response Time, 90% Span

Output Range
Output Limits
Under-range
Over-range
Output Protection
Reverse Polarity
Over-voltage
Transient
Loop Supply Voltage
Loop Supply Sensitivity
Turn-On Delay

(1)

–200°C to +850°C (100W Pt)

–80°C to +320°C (120W Ni)

50MW

66kW
66kW

240Vrms max

ANSI/IEEE C37.90.1

1500Vrms max

ANSI/IEEE C37.90.1

160dB

85dB at 60Hz, 80dB at 50Hz

±3% Zero and Span

See Ordering Information

±0.025%

±50ppm/°C

±100ppm/°C

0.260mA

±0.02°C/W

3µArms

3Hz

165ms

4mA to 20mA

3mA

29mA

Continuous
240Vrms Continuous
ANSI/IEEE C37.90.1

10.8V to 60V
±0.0005%/V

400ms

100W Pt **

DRLP-RTD1

DRLP-RTD2

DRLP-RTD3

DRLP-RTD4

DRLP-RTD5

120W Ni **

DRLP-RTD6

**RTD Standards

–100°C to +100°C

(–148°F to +212°F)

0°C to +100°C

(+32°F to +212°F)

0°C to +200°C

(+32°F to +392°F)

0°C to +600°C

(+32°F to +1112°F)

0°C to +400°C

(+32°F to +752°F)

0°C to +300°C

(+32°F to +572°F)

Alpha

Type

100W Pt
120W Ni

NOTES:
(1) Includes conformity, hysteresis and repeatability.

Coefcient DIN JIS IEC

0.00385

0.00672

DIN 43760 JIS C 1604-1989 IEC 751

±0.1%

±0.1%

±0.1%

±0.1%

±0.1%

±0.1%

±0.2°C

±0.1°C

±0.2°C

±0.6°C

±0.4°C

±0.3°C

Environmental
Operating Temp. Range
Storage Temp. Range
Relative Humidity
Emissions EN61000-6-4
Radiated, Conducted
Immunity EN61000-6-2
RF
ESD, EFT

Mechanical Dimensions
(h)(w)(d)
Mounting

–40°C to +80°C
–40°C to +80°C

0 to 95% Noncondensing

ISM, Group 1

Class A

ISM, Group 1

Performance A ±0.5% Span Error

Performance B

2.95” x 0.89” x 4.13”

(75mm x 22.5mm x 105mm)

DIN EN 50022 –35x7.5 or –35x15 rail

11

11

Potentiometer Input Transmitters

Interfaces to Potentiometers up to 10kW

•

Process Current Output

•

1500Vrms Transformer Isolation

•

ANSI/IEEE C37.90.1 Transient Protection

•

Input and Output Protected to 240VAC Continuous

•

Up to 60V Loop Voltage

•

160dB CMR

•

85dB NMR at 60Hz, 80dB at 50Hz

•

±0.03% Accuracy

•

±0.01% Linearity

•

Easily Mounts on Standard DIN Rail

•

CSA C/US Certied

•

CE Compliant

•

DRLP-P

DescriptionFeatures

Each DRLP-P potentiometer input transmitter provides a single channel of

potentiometer input which is ltered, isolated, amplied, and converted to a
process current output (Figure 1). Signal ltering is accomplished with a ve­pole lter, which provides 85dB of normal-mode rejection at 60Hz and 80dB
at 50Hz. An anti-aliasing pole is located on the eld side of the isolation bar­rier, and the other four are on the process loop side. After the initial eld-side
ltering, the input signal is chopped by a proprietary chopper circuit. Isolation
is provided by transformer coupling, again using a proprietary technique to

suppress transmission of common mode spikes or surges.

Potentiometer excitation is provided from the transmitter using a precision
current source. The excitation current is small (less than 0.26mA) which
minimizes self-heating of the potentiometer. Lead compensation is achieved
by matching two current paths which cancels the effects of lead resistance.

Special input and output circuits on the DRLP-P transmitters provide protec­tion against accidental connection of power-line voltages up to 240VAC and

against transient events as dened by ANSI/IEEE C37.90.1. Signal and loop

power lines are secured to the module using screw terminals, which are in

pluggable terminal blocks for ease of system assembly and reconguration.

The modules have excellent stability over time and do not require recalibra­tion, however, zero and span settings are adjustable up to ±10% to accom­modate situations where ne-tuning is desired. The adjustments are made

using potentiometers located under the front panel label and are non-interac­tive for ease of use.

Figure 1: DRLP-P Block Diagram

121313

12

Specifications Typical at T

=+25°C and +24V loop voltage

A

Ordering Information

Module DRLP-P

Input Range
Input Resistance
Normal
Power Off
Overload
Input Protection
Continuous
Transient
CMV, Input to Output
Continuous
Transient
CMR (50Hz or 60Hz)
NMR

Adjustability

Accuracy
Conformity
Stability
Offset
Gain
Sensor Excitation Current

Lead Resistance Effect

Noise
Output, 100kHz
Bandwidth, –3dB
Response Time, 90% Span

(1)

0.26mA; 100W, 500W Sensor

±0.01W/W; 100W, 500W, 1kW Sensor

0W to 10kW

50MW

66kW
66kW

240Vrms max

ANSI/IEEE C37.90.1

1500Vrms max

ANSI/IEEE C37.90.1

160dB

85dB at 60Hz, 80dB at 50Hz

±10% Zero and Span

±0.03%
±0.01%

±50ppm/°C

±100ppm/°C

0.13mA; 1kW Sensor

0.065mA; 10kW Sensor

±0.02W/W; 10kW Sensor

3µArms

3Hz

165ms

Module Input Range

DRLP-P1
DRLP-P2
DRLP-P3
DRLP-P4

NOTES:
(1) Includes linearity, hysteresis and repeatability.

0 to 100W
0 to 500W

0 to 1kW

0 to 10kW

Output Range
Output Limits
Under-range
Over-range
Output Protection
Reverse Polarity
Over-voltage
Transient
Loop Supply Voltage
Loop Supply Sensitivity
Turn-On Delay

Environmental
Operating Temp. Range
Storage Temp. Range
Relative Humidity
Emissions EN61000-6-4
Radiated, Conducted
Immunity EN61000-6-2
RF
ESD, EFT

Mechanical Dimensions
(h)(w)(d)
Mounting

4mA to 20mA

3mA

29mA

Continuous
240Vrms Continuous
ANSI/IEEE C37.90.1

10.8V to 60V
±0.0005%/V

400ms

–40°C to +80°C
–40°C to +80°C

0 to 95% Noncondensing

ISM, Group 1

Class A

ISM, Group 1

Performance A ±0.5% Span Error

Performance B

2.95” x 0.89” x 4.13”

(75mm x 22.5mm x 105mm)

DIN EN 50022 –35x7.5 or –35x15 rail

Non-Linearized Thermocouple Input Transmitters

Interfaces to Types J, K, T, E, R, S, B, and N

•

Thermocouples
Process Current Output

•

1500Vrms Transformer Isolation

•

ANSI/IEEE C37.90.1 Transient Protection

•

Input and Output Protected to 240VAC Continuous

•

Up to 60V Loop Voltage

•

160dB CMR

•

85dB NMR at 60Hz, 80dB at 50Hz

•

±0.05% Accuracy

•

±0.01% Linearity

•

Easily Mounts on Standard DIN Rail

•

CSA C/US Certied

•

CE Compliant

•

DRLP-ITC

DescriptionFeatures

Each DRLP-ITC non-linearized thermocouple input transmitter provides a

single channel of thermocouple input which is ltered, isolated, amplied, and
converted to a process current output (Figure 1). Signal ltering is accom­plished with a ve-pole lter, which provides 85dB of normal-mode rejection
at 60Hz and 80dB at 50Hz.An anti-aliasing pole is located on the eld side of

the isolation barrier, and the other four are on the process loop side. After the

initial eld-side ltering, the input signal is chopped by a proprietary chopper

circuit. Isolation is provided by transformer coupling, again using a proprietary

technique to suppress transmission of common mode spikes or surges.

The DRLP-ITC can interface to eight industry standard thermocouple types:

J, K, T, E, R, S, B and N. Each transmitter is cold-junction compensated to

correct for parasitic thermocouples formed by the thermocouple wire and
screw terminals on the transmitter. Upscale open thermocouple detection is
provided by circuitry. Downscale indication can be implemented by installing
a 47MW, ±20% resistor between screw terminals 6 (+IN) and 8 (-EXC) on the
input terminal block.

Special input and output circuits on the DRLP-ITC transmitters provide
protection against accidental connection of power-line voltages up to 240VAC

and against transient events as dened by ANSI/IEEE C37.90.1. Loop power

lines are secured to the module using screw terminals, which are in pluggable

terminal blocks for ease of system assembly and reconguration. Transmit­ter zero and span settings are adjustable up to ±10%. The adjustments are

made using potentiometers located under the front panel label and are non­interactive for ease of use.

Figure 1: DRLP-ITC Block Diagram

141515

14

Specifications Typical at T

=+25°C and +24V loop voltage

A

Ordering Information

Module DRLP-ITC

Input Range

Input Bias Current
Input Resistance
Normal
Power Off
Overload
Input Protection
Continuous
Transient
CMV, Input to Output
Continuous
Transient
CMR (50Hz or 60Hz)
NMR

Adjustability

Accuracy
Stability
Offset
Gain
Cold Junction Compensation
Accuracy, +25°C
Accuracy, 0°C to +50°C
Accuracy, –40°C to +80°C
Open Input Response
Open Input Detection Time
Noise
Output, 100kHz
Bandwidth, –3dB
Response Time, 90% Span

Output Range
Output Limits
Under-range
Over-range
Output Protection
Reverse Polarity
Over-voltage
Transient
Loop Supply Voltage
Loop Supply Sensitivity
Turn-On Delay

Environmental
Operating Temp. Range
Storage Temp. Range
Relative Humidity
Emissions EN61000-6-4
Radiated, Conducted
Immunity EN61000-6-2
RF
ESD, EFT

(1)

Standard thermocouple temperature limits

as per NIST monograph 175, ITS-90

–25nA

50MW

66kW
66kW

240Vrms max

ANSI/IEEE C37.90.1

1500Vrms max

ANSI/IEEE C37.90.1

160dB

85dB at 60Hz, 80dB at 50Hz

±10% Zero and Span

See Ordering Information

±40ppm/°C
±60ppm/°C

±0.25°C
±0.50°C
±1.25°C

Upscale

< 5s

3µArms

3Hz

165ms

4mA to 20mA

2.8mA
29mA

Continuous
240Vrms Continuous
ANSI/IEEE C37.90.1

10.8V to 60V
±0.0005%/V

400ms

–40°C to +80°C
–40°C to +80°C

0 to 95% Noncondensing

ISM, Group 1

Class A

ISM, Group 1

Performance A ±0.5% Span Error

Performance B

TC

Module

DRLP-ITC-J

DRLP-ITC-K

DRLP-ITC-T

DRLP-ITC-E

DRLP-ITC-R

DRLP-ITC-S

DRLP-ITC-B

DRLP-ITC-N

‡Thermocouple Alloy Combinations

Standards: DIN IEC 584, ANSI MC96-1-82, JIS C 1602-1981

Type

J

K

T

E

R

S

B

N

‡

Input Range Accuracy

–100°C to +760°C

(–148°F to +1400°F)

–100°C to +1350°C

(–148°F to +2462°F)

–100°C to +400°C

(–148°F to +752°F)

0°C to +900°C

(+32°F to +1652°F)

0°C to +1750°C

(+32°F to +3182°F)

0°C to +1750°C

(+32°F to +3182°F)

0°C to +1800°C

(+32°F to +3272°F)

–100°C to +1300°C

(–148°F to +2372°F)

±0.05%

±0.05%

±0.05%

±0.05%

±0.05%

±0.05%

±0.05%

±0.05%

Type Material

J

Iron vs. Copper-Nickel

K

Nickel-Chromium vs. Nickel-Aluminum

T

Copper vs. Copper-Nickel

E

Nickel-Chromium vs. Copper-Nickel

R

Platinum-13% Rhodium vs. Platinum

S

Platinum-10% Rhodium vs. Platinum

B

Platinum-30% Rhodium vs. Platinum-6% Rhodium

N

Nickel-14.2% Chromium-1.4% Silicon vs. Nickel-4.4%
Silicon- 0.1% Magnesium

NOTES:
(1) Includes conformity, hysteresis, repeatability and CJC error.

(1)

±0.43°C

±0.73°C

±0.25°C

±0.45°C

±0.88°C

±0.88°C

±0.90°C

±0.70°C

Mechanical Dimensions
(h)(w)(d)
Mounting

2.95” x 0.89” x 4.13”

(75mm x 22.5mm x 105mm)

DIN EN 50022 –35x7.5 or –35x15 rail

DRLP-LTC

Linearized Thermocouple Input Transmitters

Features

Interfaces to Types J, K, T, E, R, S, B, and N

•

Thermocouples
Linearizes Thermocouple Signal

•

Process Current Output

•

1500Vrms Transformer Isolation

•

ANSI/IEEE C37.90.1 Transient Protection

•

Input and Output Protected to 240VAC Continuous

•

Up to 60V Loop Voltage

•

160dB CMR

•

85dB NMR at 60Hz, 80dB at 50Hz

•

±0.10% Accuracy

•

Easily Mounts on Standard DIN Rail

•

CSA C/US Certied

•

CE Compliant

•

Description

Each DRLP-LTC thermocouple input transmitter provides a single channel

of thermocouple input which is ltered, isolated, amplied, linearized, and
converted to a process current output (Figure 1). Signal ltering is accom­plished with a ve-pole lter, which provides 85dB of normal-mode rejection

at 60Hz and 80dB at 50Hz. An anti-aliasing pole is located on the eld side of

the isolation barrier, and the other four are on the process loop side. After the

initial eld-side ltering, the input signal is chopped by a proprietary chopper

circuit. Isolation is provided by transformer coupling, again using a proprietary

technique to suppress transmission of common mode spikes or surges.

Linearization is achieved by creating a non-linear transfer function through the

module itself. This non-linear transfer function is congured at the factory and
is designed to be equal and opposite to the thermocouple non-linearity.

The DRLP-LTC can interface to eight industry standard thermocouple types:

J, K, T, E, R, S, B and N. Each transmitter is cold-junction compensated to

correct for parasitic thermocouples formed by the thermocouple wire and
screw terminals on the transmitter. Upscale open thermocouple detection is
provided by circuitry. Downscale indication can be implemented by installing a
47MW, ±20% resistor between screw terminals 6 (+IN) and 8 (-EXC) on the
input terminal block.

Special input and output circuits on the DRLP-LTC transmitters provide
protection against accidental connection of power-line voltages up to 240VAC

and against transient events as dened by ANSI/IEEE C37.90.1. Loop power

lines are secured to the module using screw terminals, which are in pluggable

terminal blocks for ease of system assembly and reconguration. Transmitter
zero and span settings are adjustable up to ±3%. The adjustments are made

using potentiometers located under the front panel label and are non-interac­tive for ease of use.

Figure 1: DRLP-LTC Block Diagram

16

16

Specifications Typical at T

=+25°C and +24V loop voltage

A

Ordering Information

Module DRLP-LTC

Input Range

Input Bias Current
Input Resistance
Normal
Power Off
Overload
Input Protection
Continuous
Transient
CMV, Input to Output
Continuous
Transient
CMR (50Hz or 60Hz)
NMR

Adjustability

Accuracy
Stability
Offset
Gain
Cold Junction Compensation
Accuracy, +25°C
Accuracy, 0°C to +50°C
Accuracy, –40°C to +80°C
Open Input Response
Open Input Detection Time
Noise
Output, 100kHz
Bandwidth, –3dB
Response Time, 90% Span

(1)

Standard thermocouple temperature limits

as per NIST monograph 175, ITS-90

–25nA

50MW

66kW
66kW

240Vrms max

ANSI/IEEE C37.90.1

1500Vrms max

ANSI/IEEE C37.90.1

160dB

85dB at 60Hz, 80dB at 50Hz

±3% Zero and Span

See Ordering Information

±60ppm/°C
±80ppm/°C

±0.25°C
±0.50°C
±1.25°C

Upscale

< 5s

3µArms

3Hz

165ms

Module

DRLP-LTC-J1

DRLP-LTC-J2

DRLP-LTC-J3

DRLP-LTC-K1

DRLP-LTC-K2

DRLP-LTC-K3

DRLP-LTC-K4

DRLP-LTC-T1

DRLP-LTC-T2

DRLP-LTC-E

DRLP-LTC-R

TC

Type‡Input Range Accuracy

J

J

J

K

K

K

K

T

T

E

R

0°C to +760°C

(+32°F to +1400°F)

–100°C to +300°C

(–148°F to +572°F)

0°C to +500°C

(+32°F to +932°F)

0°C to +1000°C

(+32°F to +1832°F)

0°C to +500°C

(+32°F to +932°F)

–100°C to +1350°C

(–148°F to +2462°F)

0°C to +1200°C

(32°F to +2192°F)

–100°C to +400°C

(–148°F to +752°F)

0°C to +200°C

(+32°F to +392°F)

0°C to +1000°C

(+32°F to +1832°F)

+500°C to +1750°C

(+932°F to +3182°F)

±0.1% span

±0.1% span

±0.1% span

±0.1% span

±0.1% span

±0.1% span

±0.1% span

±0.1% span

±0.1% span

±0.1% span

±0.1% span

±0.76°C

±0.40°C

±0.50°C

±1.00°C

±0.50°C

±1.45°C

±1.20°C

±0.50°C

±0.20°C

±1.00°C

±1.25°C

(1)

Output Range
Output Limits
Under-range
Over-range
Output Protection
Reverse Polarity
Over-voltage
Transient
Loop Supply Voltage
Loop Supply Sensitivity
Turn-On Delay

Environmental
Operating Temp. Range
Storage Temp. Range
Relative Humidity
Emissions EN61000-6-4
Radiated, Conducted
Immunity EN61000-6-2
RF
ESD, EFT

Mechanical Dimensions
(h)(w)(d)
Mounting

4mA to 20mA

2.8mA
29mA

Continuous
240Vrms Continuous
ANSI/IEEE C37.90.1

10.8V to 60V
±0.0005%/V

400ms

–40°C to +80°C
–40°C to +80°C

0 to 95% Noncondensing

ISM, Group 1

Class A

ISM, Group 1

Performance A ±0.5% Span Error

Performance B

2.95” x 0.89” x 4.13”

(75mm x 22.5mm x 105mm)

DIN EN 50022 –35x7.5 or –35x15 rail

DRLP-LTC-S

DRLP-LTC-B

DRLP-LTC-N

‡Thermocouple Alloy Combinations

Standards: DIN IEC 584, ANSI MC96-1-82, JIS C 1602-1981

S

+500°C to +1750°C

(+932°F to +3182°F)

B

+500°C to +1800°C

(+932°F to +3272°F)

N

–100°C to +1300°C

(–148°F to +2372°F)

±0.1% span

±0.1% span

±0.1% span

±1.25°C

±1.30°C

±1.40°C

Type Material

J

Iron vs. Copper-Nickel

K

Nickel-Chromium vs. Nickel-Aluminum

T

Copper vs. Copper-Nickel

E

Nickel-Chromium vs. Copper-Nickel

R

Platinum-13% Rhodium vs. Platinum

S

Platinum-10% Rhodium vs. Platinum

B

Platinum-30% Rhodium vs. Platinum-6% Rhodium

N

Nickel-14.2% Chromium-1.4% Silicon vs. Nickel-4.4%
Silicon- 0.1% Magnesium

NOTES: (1) Includes conformity, hysteresis, repeatability and CJC error.

17

17

DRLP Wiring Diagram

DRLP Loop Drive Capability

The DRLP Transmitter’s wide range of Loop Supply Voltage (10.8V to 60V)
makes it a versatile device which can be used in most any current loop. The
maximum loop resistance is determined by subtracting the transmitter’s
minimum loop supply voltage from the total loop supply voltage and dividing
the result by the maximum loop current (see graph).

The low Loop Supply Voltage of 10.8V allows the DRLP to be used in applica­tions with low output power supplies and the high Loop Supply Voltage of 60V
allows use in applications with long distance current loops.

18

18

DRLP Module Dimensions

19

19

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’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
co mponent upon which l iability is b ased. 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) N UMBE R FRO M OME G A’S CUS T OME R SERVIC E DEPA RT M ENT ( IN OR D ER T O AVOI D
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 registered trademark of OMEGA ENGINEERING, INC.
© Copyright 2012 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.

M5110/0312

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Instrumentation & Accessories

FLOW/LEVEL

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Rotameters, Gas Mass Flowmeters & Flow Computers

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Air Velocity Indicators

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Turbine/Paddlewheel Systems

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Totalizers & Batch Controllers

pH/CONDUCTIVITY

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pH Electrodes, Testers & Accessories

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Benchtop/Laboratory Meters

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Controllers, Calibrators, Simulators & Pumps

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Industrial pH & Conductivity Equipment

DATA ACQUISITION

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Data Acquisition & Engineering Software

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Communications-Based Acquisition Systems

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Plug-in Cards for Apple, IBM & Compatibles

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Data Logging Systems

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Recorders, Printers & Plotters

HEATERS

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Heating Cable

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Cartridge & Strip Heaters

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Immersion & Band Heaters

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Flexible Heaters

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Laboratory Heaters

ENVIRONMENTAL
MONITORING AND CONTROL

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Metering & Control Instrumentation

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Refractometers

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Pumps & Tubing

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Air, Soil & Water Monitors

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Industrial Water & Wastewater Treatment

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pH, Conductivity & Dissolved Oxygen Instruments