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1/4 DIN Temperature and Process Ramp and Soak Controller

1/4 DIN Ramp/Soak Temperature/Process Controllers with Modular Outputs and Communications

Item# CN3251-F

1/4 DIN Ramp/Soak Temperature/Process Controllers with Modular Outputs and Communications CN3251-F CN3251-F
  • Dual PID + Fuzzy Logic Control
  • Up to Five Outputs– Control, Alarm or Event
  • Universal Sensor Input
  • Switching Power Supply 100 to240 Vac or Optional 12 to 24 Vac/Vdc
  • NEMA-4X Hosedown Front Panel
  • 16-Segment Ramp/ Soak Program
  • Optional RS-232, RS-422, RS-485 Digital Communications
  • Programmable Remote Setpoint Input (Standard)
  • Modular Outputs

The CN3251 1/4 DIN temperature and process controller is a low cost, high performance single loop controller that can be used for temperature, flow, pressure and level control applications. With universal sensor inputs and front panel operator setup, one CN3251 controller can be easily field configured for a wide variety of applications, and simply reconfigured as application needs change. This makes it an exceptional choice for applications requiring multiple control needs, manufacturing facilities, testing facilities and testing applications.

Input Types and Ranges
Input Type Range Accuracy @ 77°F/25°C ambient
(all ±% of sensor span)
J   Iron Constantan -73 to 760°C
-100 to 1400°F
K   CHROMEGA™ ALOMEGA™ -184 to 1316°C
-300 to 2400°F
T   Copper Constantan -212 to 399°C
-350 to 750°F
0.4% for PV <-80°C
0.2% for PV >-80°C
E   CHROMEGA™ Constantan -73 to 593°C
-100 to 1100°F
R   Pt-13%Rh/Pt -18 to 1760°C
0 to 3200°F
S   Pt-10%Rh/Pt -18 to 1760°C
0 to 3200°F
B   Pt-30%Rh/Pt-6%Rh 10 to 1816°C
50 to 3300°F
0.4% for PV >538°C
RTD   Pt, 385 100 ohm -128 to 538°C
-200 to 1000°F
-73.3 to 482.2°C
-99.9 to 899.9°F
4 to 20 mA Scalable (-500 to 5000) 0.20%
0 to 5 Vdc Scalable (-500 to 5000) 0.20%
1 to 5 Vdc Scalable (-500 to 5000) 0.20%

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Omega CN3251-R Temperature is not readings correctly SAMPLE. -59F I read of 71 F

Asked by: JFwatts
Thank you for your inquiry. There may be many reasons for the readings to be incorrect. It can be a faulty sensor, incorrect programming, wiring, or unit may have a calibration issue. Please call us to discuss or email us at temp@omega.com
Answered by: Application Engineer JB
Date published: 2020-04-15
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