1⁄16 DIN Temperature Controllers
CN740 Series
UDual Display
UAutotune
URS485 Communications
UFree Software
UAlarm Functions
UThermocouple/ RTD Inputs
UOutput Status
The CN740 Series temperature controllers offer accurate temperature measurement and control in a
1⁄16 DIN package. Designed for direct or reverse acting (cooling or heating) control, the CN740 Series can be programmed for simple ON/ OFF or more complex PID control functions. PID control is supported with manual or autotuning. Select relay, DC pulse or current output for control methods. The CN740 Series accepts a variety of thermocouple and RTD inputs. Process value and set-point value are displayed simultaneously on the large dual LED. Auto-tuning, engineering units (°F or °C), and alarm status
is also indicated on the faceplate. Two alarm outputs are included on the unit with 12 preprogrammed alarm functions.
Specifications
Inputs: Thermocouple, RTD, see chart Display: Two 4-digit, 7 segment
6.35 mm H (0.25") LEDs
PV: Red
SV: Green
Accuracy: ±0.25% span, ±1 least significant digit
Supply Voltage: 100 to 240 Vac, 50/60 Hz
Power Consumption: 5 VA max Operating Temperature: 0 to 50°C (32 to 122°F)
Memory Backup: Nonvolatile memory
Control Output Ratings: Relay: SPST,
5A @ 250 Vac resistive
Voltage Pulse: 14 Vdc, 10 to -20% (max 40 mA)
Current: 4 to 20 mA
Panel |
punches |
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CN743 |
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available, |
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.com/ |
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omega |
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panelpunches |
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Communication:
RS485 Modbus® communication protocol
Panel Cut-Out: 45 mm2 (1.77 in2)
Front Bezel: 48 mm2 (1.89 in2)
Maximum Panel Thickness:
9.50 mm (0.375")
Panel Depth: 80 mm (3.15")
Weight: 114 g (4 oz)
Front Panel Rating: IP66
Input Types |
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100 to 1800°C (212 to 3272°F) |
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0 to 1700°C (32 to 3092°F) |
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0 to 1700°C (32 to 3092°F) |
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-200 to 1300°C (-328 to 2372°F) |
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0 to 600°C (32 to 1112°F) |
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-20 to 400°C (-4 to 752°F) |
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-200 to 400°C (-328 to 752°F) |
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-20 to 400°C (-4 to 752°F) |
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-100 to 850°C (-148 to 1562°F) |
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-200 to 1300°C (-328 to 2372°F) |
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-200 to 500°C (-328 to 932°F) |
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-200 to 500°C (-328 to 932°F) |
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-200 to 800°C (-328 to 1472°F) |
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Pt100Ω RTD |
0 to 100°C (32 to 212°F) |
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-20 to 500°C (-4 to 932°F) |
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-200 to 600°C (-328 to 1112°F) |
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To Order Visit omega.com/cn740_series for Pricing and Details |
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Model No. |
Description |
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CN743 |
Relay output, with RS485 communications* |
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CN742 |
DC pulse output, with RS485 communications* |
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CN745 |
4 to 20 mA output, with RS485 communications* |
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Accessories (Field Installable) |
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Model No. |
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Description |
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CNQUENCHARC |
Noise suppression RC snubber |
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(2 leads), 110 to 230 Vac |
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CN7-485-USB-1 RS485 to USB mini-node converter
* Free CN7-A software download available at omega.com/cn740_series Comes complete with operator’s manual.
Ordering Example: CN743, single output controller, mechanical relay, RS485 communications.
P-48
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