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Product Groups
Temperature Controllers and Indicators For Plastics Extrusion Applications
TRODEKS Engineering | Thermocouples, Pressure Transducers, Flow Meters, PID Controllers
CNP6 and CNP8
  • Simple to Operate, Preconfigured for Extrusion Applications
  • Universal Input
  • Selectable Controller or Indicator Modes
  • Heat Only or Heat Cool Control Type
  • Process and Loop Alarms
  • Available in 1⁄16 and 1⁄8 DIN Formats
  • Modbus® RS485 Communications
  • Ramping Setpoint
  • UL and cUL Approved
 Manuals (contact with email : [email protected])


With plastic extruder specific settings, the trodeks CNP Series temperature controllers are an economic solution to precision temperature control of extruders. Reduce inventory—single device for heat only, heat/cool control and indicator. Fast configuration and and default parameters to fit the selected mode. With two package sizes and multiple output configurations,the controllers are suitable for twin and single screw extruders, both for heat only die and adapter zones, and heat/cool for barrel zones. The controllers can also be used in an indicator only mode, allowing one instrument to be used for all applications. With three default parameter settings for indicator, heat and heat/cool modes, the trodeks CNP Series controllers offers the ultimate in flexibility for the control of industrial plastic extruders.

Device Modes: PID controller or indicator
Control Types: Full PID with pre-tune, self-tune, manual tuning, or on-off control; heat only or heat/cool
Sensor Input: Universal input for use with thermocouples, PT100 RTDs, and sensors with linear DC current and voltage outputs
Auto/Manual Selectable: From front panel with bumpless transfer
Control: Enable control ON/OFF selectable from front keypad
Output Configurations: Up to 3 possible outputs for control and alarm(s)
Alarm 1 and 2 Types: Process high, process low, SP deviation, band, logical or/and; also 1 loop alarm for process control security; process alarms have adjustable hysteresis
Human Interface: 4 button operation, 4 digit 10 mm red upper and 8 mm green lower LED display plus 5 LED indicators
Inputs Supported: Thermocouple J, K, C, R, S, T, B, L, N and PtRh 20% vs PtRh 40%
RTD 3 Wire PT100: 50Ω per lead maximum (balanced)
DC Linear: 0 to 20 mA, 4 to 20 mA, 0 to 50 mV, 10 to 50 mV, 0 to 5 V, 1 to 5 V, 0 to 10 V, 2 to 10 V; scalable -1999 to 9999, with adjustable decimal point
Impedance: >10Ω for thermocouple and mV ranges, 47Ω for V ranges and 5Ω for mA ranges
Accuracy: ±0.1% of input range ±1 LSD (T/C CJC better than 1°C)
Sampling: 4 per second, 14 bit resolution approximately
Sensor Break Detection: <2 seconds (except zero based DC ranges), control O/P’s turn off, high alarms activate for T/C and mV ranges, low alarms activate for RTD, mA or V ranges
Outputs and Operations
Control and Alarm Relays: Contacts SPDT 2 amp resistive at 240 Vac, >500,000 operations
Control SSR Driver Outputs: >10 Vdc in 500 minimum drive capability
Triac Outputs: 0.01 to 1 amp AC, 20 to 280 Vrms, 47 to 63 Hz
Communications: 2-wire RS485, 1200 to 19,200 Baud, Modbus
Operating and Environmental
Temperature and RH: 0 to 55°C (-20 to 80°C storage) [32 to 131°F (-4 to 176°F)], 20 to 95% RH non-condensing
Power Supply: 100 to 240 V, 50/60 Hz, 7.5 VA, 20 to 48 Vac 7.5 VA/22 to 65 Vdc, 5W
Front Panel Protection: IEC IP66 (behind panel protection is IP20)
Standards: CE, UL and ULC recognized
Front Bezel Dimensions:
1/16 DIN: 48 x 48 mm (1.89 X 1.89")
1/8 DIN: 96 x 48 mm (3.78 X 1.89")
Depth Behind Panel:
1/16 DIN: 110 mm (4.33")
1/8 DIN: 100 mm (3.93")
Weight: 0.21 kg (7.4 oz)
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