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CN8100-Series
1/4 DIN Digital Temperature and Limit Controllers Family
This product is no longer available. For a possible alternate, please see CNI8-AL
- Large, Easy-to-Read LED Display, Selectable for Either Setpoint or Process Temperature
- Type J or K Thermocouple Input For PID Controllers
- Type J Thermocouple Input For ON-OFF or LimitControllers
- ON-OFF and PID Contollers Can Be Ordered with One or Two Outputs.Output One: 5Amp Relay or 2 Aac SSR. Output Two:5 Amp Relay or 1 Aac SSR
Product Overview
- Accuracy ± 0.3 %
- Accuracy Detail ±0.3% of FS, ±1 digit Setpoint
- Additional Features 1 Heat Only
- Control Characteristics Control Hysteresis: 1 to 140°C (2 to 252°F) Display Offset: -70 to 70°C (-126 to 126°F) Deviation Alarm: Off, 1 to 140°C (Off, 1 to 252°F)
- Cutout Dimensions 92 × 92 mm
- DIN Rail Size 0.25 mm
- Display Size 14 mm (.56 in)
- Display Type 3 Digit LED
- Display Type Note 3-digit, 14 mm (0.56") orange LED
- Electrical Connection Fast-on Style 0.250 in Wide
- Enclosure Ratings IP65, NEMA Type 4X
- Form factor 1/4 DIN
- Height 96 mm
- Input Type Thermocouple
- Lead Resistance, Max 100 Ω
- Length 6.35 mm
- Measuring Range PID Control Thermocouple Type J: 0 to 485°C Type K: -17 to 537°C ON/OFF and Limit Thermocouple Type J: 0 to 485°C
- Memory Backup Non-Volatile
- Noise Rejection Common mode >100 dB, Series mode >70 dB
- Number of Inputs 1
- Number of Outputs 1
- Operating Temperature, Max 60 °C
- Operating Temperature, Min 0 °C
- Output Detail Electromechanical relay, 5 A @ 250 Vac, 5 A @ 30 Vdc, solid-state relay, 120/240 Vac, 0 voltage switched, 2 A continuous (output 1), 0.5 A continuous (output 2) 10 A surge @ 25°C (77°F), pulsed DC 5V for external SSR
- Panel Depth 88.9 mm
- Power Consumption 6 VA
- Relative Humidity 0.9
- Repeatability ±1.0 count
- Sampling Rate 3.7 Hz (3.7 updates/second)
- Series ID CN8100-Series
- Setpoint Resolution 1 count
- Supply Power Note Line Voltage: 85 to 250 Vac, 50/60 Hz, 120 to 300 Vdc (auto polarity)
- Supply Power Type AC
- Supply Voltage 85 to 250 Vac
- Temperature Stability 5µV/°C maximum
- Thermocouple Cold End Tracking ±0.05°C/ °C ambient
- Weight 737 g
- Width 96 mm
Supported Applications
The Omega CN8100 Series comprises low-cost, general-purpose ¼ DIN digital temperature and limit controllers designed for OEM or replacement applications. The series includes models configured as PID controllers (CN8101, CN8102), on/off controllers (CN8111, CN8112), and high-limit safety devices (CN8121). Documented application areas include environmental chambers, furnaces, ovens, and packaging machinery. The CN8121-R1 model provides a high-limit safety feature with FM approval.
Operating Conditions & Performance
The controllers accept Type J (Iron–Constantan) or K (CHROMEGA®–ALOMEGA®) thermocouple inputs. Measurement ranges are 0 to 485°C (32 to 905°F) for PID control with both input types, and -17 to 537°C (0 to 999°F) specifically for Type K in PID mode; On/Off and Limit models support the 0 to 485°C range. Accuracy is specified as ±0.3% of FS, ±1 digit with a resolution of 1 count and repeatability of ±1.0 count. The response time is 3.7 Hz (270 ms).
Operating ambient temperature ranges from 0 to 60°C (32 to 140°F) at maximum 90% RH, non-condensing. The front bezel carries a NEMA 4X (IP65) enclosure rating. Power supply requirements are 85 to 250 Vac, 50/60 Hz or 120 to 300 Vdc with auto polarity.
Configuration Options
The series offers configurable output types and control modes across the model families. Output options include:
- Electromechanical relay: 5 A @ 250 Vac, 5 A @ 30 Vdc (Suffix -R1 for first output; -R2 for second).
- Solid-state relay (AC SSR): 120/240 Vac, 0 voltage switched. Output 1 is rated at 2 A continuous (-T1); Output 2 is rated at 0.5 A continuous (-T2). Note: “-T1” = 2A ac SSR, “-T2” = 1A ac SSR.
- DC Pulse: Pulsed DC 5V for external SSR (Suffix -D1 or -D2).
The CN8101 and CN8102 models feature auto tuning. Adjustable output hysteresis is available to prevent rapid cycling around setpoint temperature, with a range of 1 to 140°C (2 to 252°F). The series includes discrete status indicators for Actual (amber), Setpoint (amber), Heat/Limit/Output 1 (orange), and Output 2 (orange).
Electrical connections utilize Fast-on style terminals (0.250" wide). An optional accessory, the DPP-6, is a ¼ DIN panel punch.
Key Product Differences
The CN8100 Series differentiates models by control algorithm and output configuration:
- CN8101-(-*): PID controller, single output with Type J and K thermocouple input.
- CN8102-(-*): PID controller, dual output (Heat/Cool) with Type J and K thermocouple input. Suffixes denote the specific relay or SSR type for each channel.
- CN8111-(-*): On/off controller, single output with Type J thermocouple input.
- CN8112-(-*): On/off controller, featuring a single control output and an alarm output (or Cool Only in direct configuration) with Type J thermocouple input.
- CN8121-R1: High-limit controller, single relay output with Type J thermocouple input. This model is FM approved for safety applications.
PDFs & Manuals
