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Compact, Low Cost, Modular Signal Conditioners
OM5 Series
U Rugged, Compact
Economical Signal
Conditioning
U Modular Design for Mix and
Match Capability
U Analog Input Modules for
Direct Interface to Sensors
and Analog Voltage and
Current
U Convenient Connection to
User Equipment
The OM5 Series modular signal
conditioners provide a low cost,
high performance method of interconnecting real-world analog signals
with data acquisition, monitoring or
control systems.
They are designed to interface
directly to analog inputs such as
thermocouples, RTDs, strain gages
and voltage or process current
signals. Individual OM5 modules
convert these inputs to standardized
analog outputs compatible with
high-level analog I/O systems. An
output module converts a high-level
analog output to a process
current signal.
Shown with 16-channel
backplane (sold separately).
The OM5 is designed to provide
easy and convenient solutions
to signal conditioning problems
of both designers and end users
in measurement and control
applications.
Typical uses include mini- and
microcomputer-based measurement
systems, standard data acquisition
systems, recorders, and dedicated
control systems.
The OM5 is ideally suited to
applications where monitoring
and control of temperature,
pressure, flow and other analog
signals is required.
Isolated Voltage Input
Models
Designed for either low-level
millivolt or high level voltage inputs,
these modules can accept from
±10 mV to ±10V full scale input,
with either a 0 to 5V or ±5V output.
Standard modules have a 4 Hz
bandwidth, while for interfacing
to dynamic signals, the OM5-WV
and OM5-WMV modules feature a
10 kHz bandwidth.
A/IN
A/OUT
Current Input Models
These modules accept process
current signals. A sensing resistor
of 20 Ω is used to convert the signal
current to a voltage. The resistor is
installed as a separate assembly, to
facilitate replacement in the event of
inadvertent connection of the power
line.
Thermocouple Input Models
The isolated thermocouple
models incorporate cold junction
compensation circuitry which
provides 0.5°C accuracy. Open
sensor detection is standard.
RTD Input Models
The OM5-IP, OM5-IC and OM5-IN
designed for 100Ω PT, 10Ω Cu and
120Ω Ni RTDs respectively. The
modules have 3 wire compensation
and may be used with 2- or 3-wire
RTDs. The OM5-IP4 features 4-wire
compensation for 100Ω PT RTDs.
are
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Shown with 16-channel
backplane and optional
sensors (sold separately).
Strain Gage Input Models
Designed for 300 to 10 KΩ full or
half strain gage bridge for dynamic
signals. Bandwidth is 10 kHz. Integral
10V excitation is also provided.
Output Models
Isolated modules that accept process
voltage inputs from the system
connector and provide an isolated
process current signal as output.
Potentiometer Input Models
For use with 3-wire potentiometers
and 2-wire slidewire with up to
10 KΩ resistance. The input signal
is filtered, isolated and amplified to a
high level analog output voltage.
Excitation is provided by two
matched current sources which
cancels lead resistance effects in
3-wire potentiometers. The excitation
current is small (less than 1.0 mA) to
minimize self-heating error.
Displacement Transducer
Input Modules
The displacement transducer
input modules can interface to DC
displacement transducers and other
devices which require a precision
excitation voltage. The transducer
excitation is provided from the
module by a stable isolated
10V source.
The OM5-BP-16 is a 16-position
Two-Wire Transmitter
Interface Modules
The OM5-TX are ideal for
connecting to 2-wire loop power
transmitters. The modules accept
4 to 20 mA process current input
and provide an isolated output
voltage. The module features an
isolated 20 Vdc regulated power
supply to provide power to the
transmitter. A precision 20 Ω current
conversion resistor is supplied with
each module.
SYSTEM CONFIGURATION
The OM5 system is fully modular,
for maximum user flexibility. When
designing a system, in addition to
selecting input and output modules,
both a backplane and power supply
are required.
plane with pinouts on system
connector that are compatible with
the OM3 system; this allows an OM5
to interface to plug-in cards for IBM
PCs. Also available for single channel
applications is the OM5-BP-SKT single
channel backplane.
Two power supplies are available for
OM5 systems. The OMX-955 has 1A
capacity, and can be used with up to
16 input modules. For systems with
larger requirements, the OMX-976
has 3A capacity, and can drive a full
complement of 16 output modules.
The OMX-1315 cable mates directly
to the OM5-BP-16, and may be
connected to the OMX-1324 adaptor.
The OMX-1324 provides screw
terminations for the high level voltage
output from the system connector.
How to Order
To Assemble a Complete OM5 System, Order:
1. Desired input and output modules
2. Backplane
3. Power Supply: calculate system power requirements
4. Voltage I/O cables and connectors
5. Rack or Surface Mount Kit
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Specifications
Input Ranges: See ordering tables
Common Mode Voltage, Input to Output:
1500 Vrms maximum
Non-Linearity: 0.02% span
Bandwidth:
OM5-II, OM5-IMV, OM5-ITC, OM5-IV, OM5-IP/IC/IN,
OM5-LTC, OM5-PT: 4 Hz
OM5-WBS, OM5-WMV, OM5-WV: 10 KHz
OM5-TX: 100 Hz
OM5-DT: 1 KHz
OM5-IVI: 400 Hz
OMF-FR: See ordering table
Input (Field) Protection: 240 Vrms maximum
Output Range: See ordering table
Output Resistance (Input Modules): 50Ω
Output Current limit (Input Modules): ±14 mA maximum
Operating Temperature Range: -40 to 85°C
(-40 to 185°F)
Module Dimensions: 58 x 57 x 15 mm
(2.28 x 2.26 x 0.60")
Accuracy
Model No. Description Accuracy
OM5-DT Displacement Input ±0.1% span ±10µV RTI
OM5-II Current Input ±0.05% span +0.05%(/-I
OM5-IFI Frequency Input ±0.05% span
OM5-IP/IC RTD Input See ordering table
OM5-ITC Non-linearized ±0.05% span
Thermocouple ±10µV RTI
1
OM5-IVI Current Output ±0.05% span
OM5-LTC Linearized See ordering table
Thermocouple
OM5-PT Potentiometer Input ±0.08% span
OM5-TX Transmitter Input ±0.05% span ±4µV RTI
OM5-WBS Strain Input ±0.08% span ±10µV RTI
OM5-WMV Millivolt Input ±0.05% span ±10µV RTI1
OM5-IMV ±0.05% (V
OM5-WV Voltage Input ±0.05% span ±0.2mV RTI
OM5-IV ±0.05% (V
(1) RTI = Reference to input
(2) IZ is the current input that results in 0V output
(3) VZ is the voltage input that results in 0V output
3
)
Z
3
)
Z
Module Power Requirements
Module Current Module Current
OM5-IMV 30 mA OM5-WBS 200 mA
OM5-IV 30 mA OM5-IVI 170 mA
OM5-II 30 mA OM5-WMV 30 mA
OM5-IP 30 mA OM5-WV 30 mA
OM5-ITC 30 mA OM5-LTC 30 mA
1
2
Z
1
1
DC Displacement Transducer Input,
Isolated, ±5 Vdc Output, 10 Vdc Excitation
To Order
Model No. Input Range
OM5-DT-1-C ±1 Vdc
OM5-DT-2-C ±2 Vdc
OM5-DT-3-C ±3 Vdc
OM5-DT-4-C ±4 Vdc
OM5-DT-5-C ±5 Vdc
OM5-DT-6-C ±6 Vdc
OM5-DT-7-C ±7 Vdc
OM5-DT-8-C ±8 Vdc
OM5-DT-9-C ±9 Vdc
OM5-DT-10-C ±10 Vdc
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Thermocouple Input Linearized, Isolated,
Output Range 0 to 5V
Input Thermocouple
Model No. Range Type Accuracy
OM5-LTC-J1-C 0 to 760°C J ±0.61°C
OM5-LTC-J2-C 100 to 300°C J ±0.32°C
)
OM5-LTC-J3-C 0 to 500°C J ±0.36°C
OM5-LTC-K1-C 0 to 1000°C K ±0.80°C
OM5-LTC-K2-C 0 to 500°C K ±0.38°C
OM5-LTC-T1-C -100 to 400°C T ±0.80°C
OM5-LTC-T2-C 0 to 200°C T ±0.25°C
OM5-LTC-E-C 0 to 1000°C E ±1.0°C
OM5-LTC-R-C 500 to 1750°C R ±1.3°C
OM5-LTC-S-C 500 to 1750°C S ±1.3°C
OM5-LTC-B-C 500 to 1800°C B ±2.0°C
*Does not include CJC accuracy.
Thermocouple Input Non-Linearized, Isolated,
1
Output Range 0 to 5V
Input Thermocouple
Model No. Range Type
OM5-ITC-J-C -100 to 760°C J
OM5-ITC-K-C -100 to 1350°C K
OM5-ITC-T-C -100 to 400°C T
OM5-ITC-E-C 0 to 900°C E
OM5-ITC-R-C 0 to 1750°C R
OM5-ITC-S-C 0 to 1750°C S
OM5-ITC-B-C 0 to 1800°C B
OM5-ITC-C1-C 350 to 1300°C C
OM5-ITC-N1-C -100 to 1300°C N
3
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RTD Input, Isolated, Output Range 0 to 5V
To Order
Model No. Input Range Description Accuracy
OM5-IP-N100-C -100 to 100°C Pt100Ω RTD, ±0.46°C
2 or 3 wire,
a = 0.00385
OM5-IP-100-C 0 to 100°C Pt100Ω RTD, ±0.36°C
2 or 3 wire,
a = 0.00385
OM5-IP-200-C 0 to 200°C Pt100Ω RTD, ±0.46°C
2 or 3 wire,
a = 0.00385
OM5-IP-600-C 0 to 600°C Pt100Ω RTD, ±0.88°C
2 or 3 wire,
a = 0.00385
OM5-IC-120-01-C 0 to 120°C Copper, 10Ω, ±0.24°C
0°C, 2 or 3 wire
OM5-IC-120-02-C 0 to 120°C Copper 10Ω, ±0.24°C
25°C, 2 or 3 wire
OM5-IN-300-C 0 to 300°C Nickel 120Ω, ±0.40°C
2 or 3 wire
OM5-IP4-N100-C -100 to 100°C Pt100Ω RTD, ±0.46°C
4 wire,
a = 0.00385
OM5-IP4-100-C 0 to 100°C Pt100Ω RTD, ±0.36°C
4 wire,
a = 0.00385
OM5-IP4-200-C 0 to 200°C Pt100Ω RTD, ±0.46°C
4 wire,
a = 0.00385
OM5-IP4-600-C 0 to 600°C Pt100Ω RTD, ±0.88°C
4 wire,
a = 0.00385
Contact Engineering for custom configurations.
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2-Wire Transmitter Interface Modules, Isolated
20 Vdc Loop Power
Model No. Input Range Output
OM5-TC-1-C 4 to 20 mA 1 to 5 Vdc
OM5-TC-2-C 4 to 20 mA 2 to 10 Vdc
Voltage Input, Isolated
Model No. Input Range Output Range
OM5-IV-1A-C ±1 V ±5 Vdc
OM5-IV-5A-C ±5 V ±5 Vdc
OM5-IV-10A-C ±10 V ±5 Vdc
OM5-IV-1B-C ±1 V 0-5 Vdc
OM5-IV-5B-C ±5 V 0-5 Vdc
OM5-IV-10B-C ±10 V 0-5 Vdc
OM5-IV-20A-C ±20 Vdc ±5 V
OM5-IV-40A-C ±40 Vdc ±5 V
OM5-IV-20B-C ±20 Vdc 0 to 5 V
OM5-IV-40B-C ±40 Vdc 0 to 5 V
Frequency Input, Isolated, 0 to 5 Vdc Output
Model No. Input Range Response Time
OM5-IFI-500-C 0 to 500 Hz 300 mS
OM5-IFI-1K-C 0 to 1 KHz 300 mS
OM5-IFI-3K-C 0 to 3 KHz 170 mS
OM5-IFI-5K-C 0 to 5 KHz 90 mS
OM5-IFI-10K-C 0 to 10 KHz 90 mS
OM5-IFI-25K-C 0 to 25 KHz 20 mS
OM5-IFI-50K-C 0 to 50 KHz 20 mS
OM5-IFI-100K-C 0 to 100 KHz 20 mS
Millivolt Input, Isolated
Model No. Input Range Output Range
OM5-IMV-10A-C ±10 mV ±5 Vdc
OM5-IMV-50A-C ±50 mV ±5 Vdc
OM5-IMV-100A-C ±100 mV ±5 Vdc
OM5-IMV-10B-C ±10 mV 0 to 5 Vdc
OM5-IMV-50B-C ±50 mV 0 to 5 Vdc
OM5-IMV-100B-C ±100 mV 0 to 5 Vdc
Potentiometer Input, Isolated, 0 to 5 Vdc Output
Model No. Input Range
OM5-PT-100-C 100 Ω
OM5-PT-1000-C 500 Ω
OM5-PT-1K-C 1K Ω
OM5-PT-10K-C 10K Ω
Wideband Millivolt Input, Isolated,
10 kHz Bandwidth
Model No. Input Range Output Range
OM5-WMV-10A-C ±10 mV ±5 Vdc
OM5-WMV-50A-C ±50 mV ±5 Vdc
OM5-WMV-100A-C ±100 mV ±5 Vdc
OM5-WMV-10B-C ±10 mV 0 to 5 Vdc
OM5-WMV-50B-C ±50 mV 0 to 5 Vdc
OM5-WMV-100B-C ±100 mV 0 to 5 Vdc
Strain Gage Input, Isolated, ±5 Vdc Output
Model No. Input Range Description
OM5-WBS-1-C ±30 mV Full bridge 300-10 kΩ,
@ 10V Exc. 10 kHz bandwidth
OM5-WBS-2-C ±20 mV Full bridge 300-10 kΩ,
@ 10 V Exc. 10 kHz bandwidth
OM5-WBS3-C ±30 mV Half bridge 300-10 kΩ,
@ 10 V Exc. 10 kHz bandwidth
Current Input, Isolated
Model No. Input Range Output Range
OM5-II-4/20-C 4 to 20 mA 0 to 5 Vdc
OM5-II-0/20-C 0 to 20 mA 0 to 5 Vdc
Contact Engineering for custom configurations.
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Wideband Voltage Input, Isolated,
10 kHz Bandwidth
OM5 Series modules
shown actual size.
To Order
Visit omega.com/om5 for Pricing and Details
Model No. Input Range Output Range
OM5-WV-1A-C ±1 V ±5 Vdc
OM5-WV-5A-C ±5 V ±5 Vdc
OM5-WV-10A-C ±10 V ±5 Vdc
OM5-WV-1B-C ±1 V 0 to 5 Vdc
OM5-WV-5B-C ±5 V 0 to 5 Vdc
OM5-WV-10B-C ±10 V 0 to 5 Vdc
OM5-WV-20A-C ±20 Vdc ±5 Vdc
OM5-WV-40A-C ±40 Vdc ±5 Vdc
OM5-WV-20B-C ±20 Vdc 0 to 5 Vdc
OM5-WV-40B-C ±40 Vdc 0 to 5 Vdc
Current Output, Isolated
Model No. Input Range Output Range
OM5-IVI-B0-C 0 to 5 Vdc 0 to 20 mA
OM5-IVI-A0-C ±5 Vdc 0 to 20 mA
OM5-IVI-B4-C 0 to 5 Vdc 4 to 20 mA
OM5-IVI-A4-C ±5 Vdc 4 to 20 mA
Ordering Examples: OM5-BP-16-C 16-channel backplane, four
OM5-LTC-J1 linearized T/C modules, four OM5-IV-1A-C voltage
modules, four OM5-IP-N100-C RTD modules, four OM5-WBS-1-C
strain gage modules, OM5-PRT-003 power supply, and OCW-1
OMEGACARE extends standard 1-year warranty to a total of 2-years.
SM
OMEGACARESM extended warranty program is
available for models shown on this page. Ask
Extended Warranty
Program
your sales representative for full details when
placing an order. OMEGACARE
labor and equivalent loaners.
SM
covers parts,
Accessories
Model No. Description
OMX-1344-C
OMX-1361-C Cold junction sensor for OM5 T/C modules
OMX-1362-C Replacement current sense 20Ω resistor for
OM7-IF Universal terminal board, requires
OMX-1363-C 19" rack mount adapter
OM5-BP-16-C 16-Channel OM5 backplane
OM5-BP-2-C 2-Channel OM5 backplane
OM5-BP-SKT-C 1-Channel OM5 backplane
OM5-BP-16-MUX-C 16-Channel multiplexed backplane
OM5-CA-04-01 1 m 26-pin cable with two connectors
OM5-PRT-003 3A, 5 Vdc, 120 Vac power supply
PSS-5B 1A, 5 Vdc, 120 Vac power supply
10 Jumpers (spare), for use with any OM5 module
current input modules
OM5-CA-04-01 cable
to connect OM5-BP-16-C to OM7-IF
5
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