text.skipToContent text.skipToNavigation

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

$525.00

Item# CN3251-T

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 $525.00
5-9 $498.75
10-24 $472.50
25-49 $446.25
50-99 $420.00
100+ $393.75

In stock

Lead Time ( If not in Stock): 99 weeks

1/4 DIN Ramp/Soak Temperature/Process Controllers with Modular Outputs and Communications CN3251-T CN3251-T
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • LOCAL, getAggregateRating, 1ms
  • REVIEWS, PRODUCT
  • bvseo-msg: The resource to the URL or file is currently unavailable.;
  • 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

Edit Options

View all models

Not all combinations are valid. Options compatible with previous selections will be in bold.

*Highlighted options are not compatible. Please select a different combination.

Measurement Type
Control Outputs
Form Factor
Number of Inputs
Input Type
Supply Voltage Type
Ramp and Soak
Display Type
Additional Feature
Output Type


Product Specs

  • Analog Voltage Input Ranges 0 to 5 Vdc
  • Communication Protocols (Sku Variant) Multi-drop
  • Analog Current Input Ranges 4 to 20 mA
  • Analog Input Accuracy ±0.2% of programmed span
  • Control/Alarm Outputs, Standard Total of 5 control/alarm outputs possible
  • Control Algorithms Autotune PID Manual Control Mode Remote Setpoint
  • Control Mode On/Off with hysteresis
  • Display Color Red/Green
  • Maximum Ambient Humidity 95% RH non-condensing
  • Maximum Ambient Temperature 65 {C} (150 {F})
  • Measurement Type Temperature
  • Minimum Ambient Temperature 0 {C} (32 {F})
  • Number of Display Lines (Sku Variant) 2
  • Other Features (Sku Variant) Low Voltage Power Fuzzy Logic Software
  • RTD Connection 2
  • Remote Setpoint Capability Yes
  • RTD Curves Supported 385
  • RTD Types Supported RTD(2
  • Supply Frequency 50/60 Hz
  • Sampling Rate 2 sample per second
  • Thermocouple Type J

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
0.20%
K   CHROMEGA™ ALOMEGA™ -184 to 1316°C
-300 to 2400°F
0.20%
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
0.20%
R   Pt-13%Rh/Pt -18 to 1760°C
0 to 3200°F
0.40%
S   Pt-10%Rh/Pt -18 to 1760°C
0 to 3200°F
0.40%
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
0.20%
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%




  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • LOCAL, getReviews, 0ms
  • REVIEWS, PRODUCT
  • bvseo-msg: The resource to the URL or file is currently unavailable.;

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
  • y_2020, m_9, d_16, h_17CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.12
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_1
  • loc_en_US, sid_CN3251-T, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_omega
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • LOCAL, getContent, 2ms
  • QUESTIONS, PRODUCT
Accessories
4 to 20 mA/4 to 20 mA output module
$101.69
1 In Stock
45 Relay/dc pulse output module
$54.30
0 In Stock
Relay/Relay output module
$101.69
0 In Stock
ac SSR/ac SSR output module
$101.69
0 In Stock
dc Pulse/dc pulse output module
$101.69
0 In Stock
4 to 20 mA/Relay output module
$101.69
1 In Stock
4 to 20 mA/ac SSR output module
$92.00
2 In Stock
RS-232 digital communications board with Only one communications option can be purchased per unit
$124.57
0 In Stock
Housing for CN3101 and CN3251's with digital communications**
$118.19
0 In Stock
RS-485/422 digital communications board
$124.57
0 In Stock
Housing for CN3251’s without digital communications
$107.54
0 In Stock
Side mounting bracket
$47.65
0 In Stock
Noise Suppression RC snubber (2 leads), 110 to 230 Vac
$15.76
97 In Stock
Software for communications options
$479.12
0 In Stock

en-US
en
Save Configuration