The OMEGA™ iDR DIN rail iSeries
is a family of microprocessor-based
instruments offered in 3 sizes. The
instruments have a similar setup and
configuration menu and method of
operation, which is a tremendous time
saver for integration of a large system.
The iDR instruments offer a broad
selection of signal inputs. The choices
are easily selected from the remote
programmer menu with 4 front-panel
pushbuttons, or by serial or Ethernet
communications.
The iDR handles 10 common types
of thermocouple, multiple RTDs
and several process (DC) voltage
and current ranges. This model also
features built-in excitation, 24 Vdc @
25 mA. With its wide choice of signal
inputs, this model is an excellent
choice for measuring or controlling
temperature with a thermocouple,
RTD, or 4 to 20 mA transmitter.
The strain and process instruments
(iSDR models) measure inputs from
load cells, pressure transducers,
and most any strain gage sensor as
well as process voltage and current
ranges. The iS has built-in
5 or 10 Vdc excitation for bridge
transducers, 5 Vdc @ 40 mA or
10 Vdc @ 60 mA (any excitation
voltage between 5 and 24 Vdc is
available by special order). This
model supports 4- and 6-wire
bridge communications, ratiometric
measurements.
The iSDR features fast and easy “in
process” calibration/ scaling of the
signal inputs to any engineering units.
This model also features 10-point
linearization which allows the user
to linearize the signal input from
extremely nonlinear transducers of
all kinds.
The iDR offers either simple
manual on/off operation or full
autotune PID din rail control (selectable
preset tune, adaptive tune, PID, PI,
PD control modes). The dual control
outputs can be configured for a
variety of independent control and
alarm applications, such as
heat/heat, heat/cool, heat/alarm,
cool/cool, cool/alarm, or
alarm/alarm. The ramp-to-setpoint
feature allows the user to define the
rate of rise to setpoint, minimizing
thermal shock to the load is during
start-up. For those who only need
simplified menus and no PID control, a
limit alarm (-AL) option is available.
Users have a choice of 2 control or
alarm outputs in almost any
combination: solid state relays
(SSRs) form “C” SPDT relays and
pulsed 10 Vdc output for use with
an external SSR.
The optional analog output can be
programmed within a range of
0 to 10 Vdc or 0 to 20 mA. It is
selectable as either a control output
or as a calibrated retransmission of
the process value—a unique feature
among controllers.
The remote programmer/display
can be programmed to change color
at any setpoint or alarm point. For
example, the instrument can be
programmed to display the process
value in GREEN during warm-up,
in AMBER to signal the normal
operating range, and in RED to
signal an alarm condition.
Embedded Web Server option allows
you to connect directly to an Ethernet
network and transmit data in standard
TCP/IP packets, or serve Web
pages over a LAN or the Internet.
With the serial communication
option, the user can select from
the pushbutton menu between
RS232, RS422, and RS485, with
straightforward ASCII commands
or MODBUS.
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SPECIFICATIONS
Universal Temperature and Process Input Model (iDR)
Accuracy: ±0.5°C temp; 0.03% rdg process
Resolution: 1°/0.1° 10 µV process
Temperature Stability:
RTD: 0.04°C/°C
T/C @ 25°C (77°F): 0.05°C/°C cold-junction compensation
Process: 50 ppm/°C
NMRR: 60 dB
CMRR: 120 dB
A/D Conversion: Dual-slope
Reading Rate: 3 samples per second
Digital Filter: Programmable
Input Types: Thermocouple, RTD, analog voltage, analog current
Thermocouple Lead Resistance: 100 Ω max
Thermocouple Type (ITS 90): J, K, T, E, R, S, B, C, N, L
RTD Input (ITS 68): 100/500/1000 Ω Pt sensor; 2-, 3- or 4-wire; 0.00385 or 0.00392 curve
Voltage Input: 0 to 100 mV, 0 to 1 V, 0 to 10 Vdc
Input Impedance: 10 MΩ for 100 mV, 1 MΩ for 1 or 10 Vdc
Current Input: 0 to 20 mA (5 Ω load)
Configuration: Single-ended
Polarity: Unipolar
Step Response: 0.7 s for 99.9%
Decimal Selection: None, 0.1 for temperature; none, 0.1, 0.01 or 0.001 for process
Setpoint Adjustment: -1999 to 9999 counts
Span Adjustment: 0.001 to 9999 counts
Offset Adjustment: -1999 to 9999
Excitation: 24 Vdc @ 25 mA (not available with "-DC", "-C24" or "-C4EIT" option)
Universal Strain and Process Input Model (iSDR)
Accuracy: 0.03% rdg
Resolution: 10/1 µV
Temperature Stability: 50 ppm/°C
NMRR: 60 dB
CMRR: 120 dB
A/D Conversion: Dual-slope
Reading Rate: 3 samples per second
Digital Filter: Programmable
Input Types: Analog voltage, analog current
Voltage Input: 0 to 100 mVdc, -100 mVdc to 1 Vdc, 0 to 10 Vdc
Input Impedance: 10 MΩ for 100 mV; 1 MΩ for 1 or 10 Vdc
Current Input: 0 to 20 mA (5 Ω load)
Linearization Points: Up to 10
Configuration: Single-ended
Polarity: Unipolar
Step Response: 0.7 s for 99.9%
Decimal Selection: None, 0.1, 0.01 or 0.001
Setpoint Adjustment: -1999 to 9999 counts
Span Adjustment: 0.001 to 9999 counts
Offset Adjustment: -1999 to 9999
Excitation: 5 Vdc @ 40 mA; 10 Vdc @ 60 mA (not available with "-DC", "-C24" or "-C4EIT" option
Control
Action: Reverse (heat) or direct (cool)
Modes: Time and amplitude proportional control modes; selectable manual or auto PID, proportional, proportional with integral, proportional with derivative with anti-reset windup and on/off
Rate: 0 to 399.9 seconds
Reset: 0 to 3999 seconds
Cycle Time: 1 to 199 seconds; set to 0 for on/off operation
Gain: 0.5 to 100% of span; setpoints 1 or 2
Damping: 0000 to 0008
Soak: 00.00 to 99.59 (HH:MM), or off
Ramp to Setpoint:
00.00 to 99.59 (HH:MM), or off
Autotune: Operator-initiated from front panel
Control Output 1 and 2
Relay: 250 Vac or 30 Vdc @ 3 A (resistive load); configurable for on/off, PID and ramp and soak
Output 1: SPDT type, can be configured as alarm 1 output
Output 2: SPDT type, can be configured as alarm 2 output
SSR: 20 to 265 Vac @ 0.05 to 0.5 A (resistive load); continuous
DC Pulse: Non-isolated; 10 Vdc @ 20 mA Analog Output (Output 1 Only): Non-isolated, proportional 0 to 10 Vdc or 0 to 20 mA; 500 Ω max Analog Output (Optional Output 3): Isolated, retransmission, 0 to 10 Vdc or 0 to 20 mA, 500 Ω max; accuracy is 1% of FS, for scaling gain from 0.03 to 100 mV per count. Isolation is 1000 Vdc; linearity is 0.2%
Network and Communications Options (-C24, -C4EIT, -EIT)
Ethernet: Standards compliance IEEE 802.3 10 Base-T
Supported Protocols: TCP/IP, ARP
RS232/RS422/RS485/MODBUS: Selectable from menu; both ASCII and MODBUS protocol selectable from menu. Programmable 300 to 19.2K baud; complete programmable setup capability; program to transmit current display, alarm status, min/max, actual measured input value and status.
RS485: Addressable from 0 to 199
Connection: Screw terminals
Alarm 1 and 2 (Programmable)
Type: Same as output 1 and 2
Operation: High/low, above/below, band, latch/unlatch, normally open/normally closed and process/deviation
Analog Output (Programmable): Non-isolated, retransmission, 0 to 10 Vdc or 0 to 20 mA, 500 Ω max (output 1 only); accuracy is ±1% of FS when the following conditions are satisfied:
1. Input is not scaled below 1% of input FS
2. Analog output is not scaled below 3% of output FS
General
Line Voltage/Power: 90 to 240 Vac ±10%, 50 to 400 Hz*, 110 to 375 Vdc, equivalent voltage. No CE compliance above 60 Hz.
Low-Voltage/Power Option: 24 Vac**; 12 to 36 Vdc; 20 to 36 Vdc for Ethernet and isolated analog output from qualified safety approved source ** Units can be powered safely with 24 Vac power, but no certification for CE/UL is claimed.
Insulation
Power to Input/Output: 2300 Vac per 1-minute test 1500 Vac per 1-minute test (for low-voltage power option)
Power to Relays/SSR Outputs: 2300 Vac per 1-minute test Relays/SSR to Relay/SSR Outputs: 2300 Vac per 1-minute test
RS232/485 to Input/Outputs: 500 Vac per 1-minute test
Environmental Conditions: 0 to 55°C (32 to 131°F) (0 to 50°C for UL), 90% RH (non-condensing)
Approvals:
UL, C-UL, CE per EN61010-1:2001, FM (temperature units only)
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