CN710-Series

Supported Applications

The Omega CN710 Series consists of microprocessor-based temperature process controllers designed for direct or reverse acting (cooling or heating) control. These panel-mount units feature dual 4-digit 7-segment LED displays showing the Process Value (PV) in red and Set Value (SV) in green. The series supports PID control with manual or auto-tuning capabilities.

Documented input types include Thermocouple and RTD sensors, enabling temperature monitoring across a wide range of industrial processes. Standard RS485 MODBUS communication allows for integration into automated systems.

Operating Conditions & Performance

The CN710 Series operates within an ambient temperature range of 0 to 50°C (32 to 122°F). The front panel carries a rating of IP66. Power is supplied via AC 100-240V, 50/60 Hz.

Accuracy specifications are listed as ±0.25% span and ±1 least significant digit. Measurement ranges vary by input type:

• Pt100Ω RTD: -200 to 600°C (-328 to 1112°F), among other sub-ranges
• Thermocouple Type B: 100 to 1800°C (212 to 3272°F)
• Thermocouple Types S and R: 0 to 1700°C (32 to 3092°F)
• Thermocouple Type N, K, L, U: -200 to 1300°C (-328 to 2372°F) or lower limits depending on type
• Thermocouple Types E, T, J: Ranges from -20 to 400°C (-4 to 752°F) up to -100 to 850°C (-148 to 1562°F)

The unit weight is 425 g (15 oz). Panel cutout dimensions are specified as 92 x 46 mm (3.6 x 1.8") with a maximum panel thickness of 9.50 mm (0.375"). The required panel depth is 79.2 mm (3.125").

Configuration Options

The series offers three primary output configurations, each with RS485 communications:

• CN713: Relay output (SPDT, 5 A @ 250 Vac resistive)
• CN712: DC pulse output (Voltage Pulse: 14V, 10 to -20%, maximum 40 mA)
• CN715: Current output (4 to 20 mA)

All models include two alarm outputs configurable from 12 preprogrammed settings. The controllers feature easy-to-use programming menus and support for autotuning.

Accessories and Options

• CNQUENCHARC: Noise suppression RC snubber (2 leads), rated for 110 to 230 Vac
• CN7-485-USB-1: RS485 to USB mini-node converter

Free CN7-A software is available online. The unit comes complete with an operator's manual.

Key Product Differences

The primary distinction among the three stocked variants (CN712, CN713, CN715) lies in their output signal type: DC pulse for CN712, mechanical relay for CN713, and 4 to 20 mA current loop for CN715. All share identical physical dimensions, input capabilities, ambient operating limits, RS485 communication standards, and display configurations.

Wiring diagrams indicate specific terminal assignments for power (L/N), data (DATA+/DATA-), alarms (ALM1/ALM2), and sensor inputs (RTD +/- or Tc IN) which vary slightly by model number but follow consistent functional groupings. For example, CN740 models referenced in family documentation utilize different terminal layouts than the 1/8 DIN vertical CN710 series.