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1/16, 1/8, and 1/4 DIN Temperature and Process PID Controllers

CND3 Temperature and Process PID Controller
  • RoHS Icon
  • CE Approved
  • UL cULus Listed


Item# CN16D3-SR-2U-CM-DC

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 $206.37
10-24 $196.05
25-49 $185.73
50-99 $175.41
100-499 $165.10
500+ $154.78

In stock

Lead Time (If not in stock): 9 weeks
CND3 Temperature and Process PID Controller CN16D3-SR-2U-CM-DC CN16D3-SR-2U-CM-DC
  • Base Model Starting from $80
  • Fast Sampling Time 0.1 sec
  • Heater Disconnection Detection
  • All 1/4, 1/8, 1/16 DIN Models UL/cUL Certified

CN16D3-SR-2U-CM-DC Model Options

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Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

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

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

The New Omega temperature & process controller CND3 Series is designed with upgraded hardware and higher specifications to offer smart operation, fast response, and easy to use, plus user-friendly and user-defined function keys. With Self-Tuning PID and FUZZY temperature control functions, controllers can be installed in both open space or confined space applications and are capable of presenting a smooth temperature control curve.

Applications Include: Machinery for the printing, food packaging, solar panel manufacturing, and high-tech electronics industries.

    AC Power: 100 to 240 VAC, 50/60Hz, 5VA max
    DC Power: 24 VDC ±10%, 5W max
Display: 2 line by 4-digital, FSTN LCD negative image transmissive with backlight
    PV Display: Orange color backlight
    SV Display: Green color backlight
Certification and Compliances:
Safety: UL Recognized Component, File E243710 Vol. 1
EC Declaration LVD: EN61010-1; 2010
EMC: EN61326-1; 2013, EN61131-2; 2007, EN61000-6; 2005, EN61000-6-4; 2007/A1; 2011 IP66 Enclosure rating (face only), IEC60529 Edition 2.1 2001-02
Sample Rate: 100ms
Sensor Input Overvoltage Rating: 15 Vdc
RTD Inputs
    Type: 3 wires
    Excitation: 180µA
    Lead Resistance: 15OΩ max per wire
    Resolution: 1 or 0.1ºC for all type
Input Impedance: Approx. 4.7MΩ
Lead Resistance Effect: -0.3µV/Ω
Cold Junction Compensation: Less than 1.5ºC typical (max 2.0ºC) error over -10 to 50ºC ambient temperature range
Resolution: 1 or 0.1ºC for all type
Temperature Indication Accuracy:
±(0.3% of span, +1ºC) at 25ºC ambient after 20 minutes warm up. Including NIST conformity, cold junction effect, A/D conversion errors and linearization conformity

Process Indication Accuracy

*Depending on the rating of resistor 249Ω built in.

Remote Set-Point Input:
DC 0 to 10V Linear Voltage Input: Opening Jumper, resolution: 156µV/scale
DC4 20mA/0 to 20mA Input: Shorting Jumper, resolution: 0.63µA/scale
User Input: (Event Input)
    ON Resistance: 1KΩ Max.
    OFF Resistance: 100KΩ Min.
Response Time: 1 sec.
CT Input:
    Opening Jumper for Max 30A Measurement with 30A CT Ring, Resolution: 0.1A
    Shorting Jumper for Max 100A Measurement with 100A CT Ring, Resolution: 0.1A
Relay Output:
Type: Form A
Contact Rating: 5A @ 250 VAC or 30 VDC (Resistive Loading)
Pulse Voltage Output:
Rating: DC 12V ±10%, 40mA max with short protection.
Current Output:
DC 0 to 20mA/DC 4 to 20mA output, max resistive loading 500Ω
Resolution: 2.14µA/scale
Linear Voltage Output:
DC 0 to 10V Output, min Resistive Loading 1KΩ Resolution: 1.1mV/scale
Retransmission Output
DC 0 to 20mA/DC 4 to 20mA Output, Max Resistive Loading 500Ω Resolution: 2.09µA/scale
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Rated 3 out of 5 by from Outstanding controller, abysmal manual. This would be a 5+ star product if it weren't for the extraordinarily poor manual. This is a complex controller with a tremendous number of features and settings that can handle very difficult process control problems easily...once you figure out how to use it. Technical support, while very well meaning and committed to helping, was of not much assistance as they also relied on the same manual, and generally suggested "reading the manual" as a way out. I wouldn't have called if I hadn't read the manual. I will admit, that I am old, but I have been using Omega controllers for decades with few problems. The descriptions in the manual for this excellent controller were abysmal.
Date published: 2021-06-26
Rated 1 out of 5 by from DON'T The unit was so hard to program that even with Omega engineers helping/instructing me over the phone I could not get it to work. After 4 calls and about 8 hours on the phone I gave up.
Date published: 2021-03-12
Rated 5 out of 5 by from Already purchased a second time Controller was shipped and received quickly, works perfectly for our temp control at the brewery.
Date published: 2023-09-13
Rated 4 out of 5 by from Great programmable controller This controller is just what I needed to upgrade my existing furnace controller to a controller with program/profile capabilities. It does everything I need it to do for this application. The only drawback is that the buttons are difficult to push, but once set up, this is a minor issue.
Date published: 2023-03-06
Rated 5 out of 5 by from Capable, Simple, Affordable Controller Handy little controller that has worked flawlessly so far. Installed to replace the failing electronics in a drying oven and found it easy to adapt to relatively low temperature use with the appropriate limits and alarms. Has brought control temperatures (using the same sensor) within 2C of the setpoint compared to 10C with the older electronics.
Date published: 2022-09-12
Rated 5 out of 5 by from Cost Wise This is a cost wise controller that performs well. Omega is a trusted Company I have used for years.
Date published: 2022-02-01
Rated 4 out of 5 by from Powerful, Compact, bit tricky to learn Works well, good features, bit tricky to program until reading on line manual. The included paper document is not clear about the button press timings to activate the three different menus.. Increasing and decreasing temperatures a bit slow as numbers increment and decrement slow as you hold the button. Bubble membrane buttons are not so easy to use they are so small, and require significant pressure to activate. You have to hold the little head unit I installed them in from moving as you press. Seems to hold temperatures very nicely, display is nice. Overall it is a very nice feature packed unit, and fairly easy to use once you figure it out.
Date published: 2021-05-10
Rated 5 out of 5 by from good quality temperature controller This instrument does exactly what I want and is very stable. It is easy to program as long as you follow the flow chart provided.
Date published: 2021-04-07
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Hi. CN16D3-L-AC PDI controller, What ore the outputs options and if more than one. How do I change the output mode.

Asked by: Maintenence
The specific model number CN16D3-L-AC has one Linear Voltage output only.
Answered by: ApplicationsEngineerANB
Date published: 2020-08-27

Can the CN16D3-M-DC float since it is being suppled with 24 V DC?

Asked by: kls1
Thank you for your inquiry. This model operates on DC Power: 24 VDC ±10%, 5W max and does not require an earth ground connection.
Answered by: Application Engineer JB
Date published: 2021-12-13

Can the variables, in particular P, be negative?

Asked by: kls1
Thank you for your inquiry. No it can not be negative.
Answered by: Application Engineer CB
Date published: 2021-09-20

Do you have a heater contactor for running (2) 1500 Watt, 240 VAC heaters ? Need (2) contactors each rated for 10 or 15A, in an enclosure.

Asked by: Iceman
Hi Iceman, Thank you for the inquiry. Our control relays are currently limited to 10 A service; Best regards OMEGA
Answered by: AENorwalk
Date published: 2020-04-02

omega recommend a cm16d3-m-ac controller how do i hook up wires to retransmit temperature signal to a plc

Asked by: james o
The output of this controller is a 'powered output' so simply run terminal # 5 (+) to the Positive input of your PLC, and #4 (-) to the Negative input of your PLC.
Answered by: dfrisby88392
Date published: 2020-03-26

Hi, Model CN16D3-M-AC --> Can you confirm this would work connecting the DC output of controller to the control of a SSR model SSRL240DC10? thx!

Asked by: directandrew
Hi Directandrew, This will not work. You'll need the version with DC pulse; CN16D3-S-AC. Best regards, Omega
Answered by: NorwalkAE_RS
Date published: 2021-01-13

What is the depth of the CN16D3-M-AC controller? Could not find the info in the manual or via chat.

Asked by: JFWp
Thank you for your inquiry! The depth needed for the panel cutout is 79.7mm. If you need the depth for the entire controller itself please reach out to
Answered by: Application Engineer JM
Date published: 2021-05-28

On the manual it lists the factory setting for the temperature lower limit is -200C, does that mean that it can accurately measure values at -200C and then heat up to room temperature? We are trying to use this controller with a low temperature system.

Asked by: Finn1384
This unit can control process temps to -200 C accurately if the sensor accuracy is compatible with the temperature range as well. Example of compatible sensor is the PT100 RTD. And example probe is ; PR-11-2-100-1/8-12-E Thank you for your question.
Answered by: Application Engineer
Date published: 2019-07-01
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