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1/32, 1/16, and 1/8 DIN Universal Input High Accuracy Controllers

i-Series Temperature, Process and Strain Controllers


Item# CNI833

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 $343.40
10-24 $326.23
25-49 $309.06
50-99 $291.89
100-499 $274.72
500+ $257.55

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Lead Time ( If not in Stock): 2 weeks

i-Series Temperature, Process and Strain Controllers CNI833 CNI833
  • Universal Inputs
  • Accuracy at 25°C: ±0.5°C temp nominal 0.03% rdg ±0.03% range process and strain
  • Totally Programmable Color Displays (Visual Alarms)
  • User-Friendly, Simple to Configure
  • Free Software
  • Full Autotune PID Control
  • Embedded Ethernet Connectivity Optional
  • RS232 and RS485 Serial Communications Optional
  • Built-In Excitation
  • 2 Outputs: Control/Alarm or Retransmission of Process Value
  • Output 3: Isolated Analog Voltage and Current Optional
  • NEMA 4 (IP65) Front Bezel
  • Temperature Stability: ±0.04°C/°C RTD and ±0.05°C/°C Thermocouple @ 25°C (77°F)
  • Front Removable and Plug Connectors
  • AC or DC Powered Units
  • Ratiometric Mode for Strain Gages
  • Programmable Digital Filter
  • UL and cUL Certified
  • Compatible with Omega Enterprise Gateway

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Product Specs

i-Series Temperature, Process and Strain Controllers

Rated 2 out of 5 by from MORE BUTTONS LABELED The unit needs more controls and they need to be labeled clearly in writing not stupid tiny symbols. Works good but it should not be so difficult to set up.
Date published: 2020-10-23
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I have a CNi1644-C24 and want to control it from a computer. I can access the communications menus on the controller. The user manual refers me to the Serial Communications Reference Manual, but I cannot find it on your website.

Asked by: C in Pittsburgh
If you click the link under the manuals tab on this page, it downloads a zip file. M3397 is in that zip file.
Answered by: Kimmyb
Date published: 2021-07-27

Hello, Hello, I am using 4 of your cni8s with the rs232 port everything is working fine. on a device when I turn it on it writes M000.1 I have to press return to switch to run mode, do you know why? codially John

Asked by: johnsly11
Self-Mode is Enabled now. Press UP or DOWN to display MXX.X. To disable Self, press ENTER and then press SCROLL. Display goes to the Run Mode. Self-Mode is Disabled now.
Answered by: Application Engineer CB
Date published: 2021-08-12

The menu to have the alarm come on at startup is not showing up. Only the locations for putting in the High and Low temp alarm limits. Have it set at Dev and Band. Everything else working fine except I want the alarm not coming on right away at powerup.

Asked by: Bergie
A.P.oN should always be available. Please try disabling and then re-enabling the alarm sub menu.
Answered by: tempeng
Date published: 2019-09-06

Your manual does a good job of explaining how the proportional factor relates to the output level, but not the reset time or rate time. Could you elaborate? Does making those factors larger make it more or less sensitive to I and D portions of error?

Asked by: C in Pittsburgh
Thank you for the inquiry. Please forward this request to temp@omega.com so that we can review PID settings with you. Best regards OMEGA
Answered by: AENwlk
Date published: 2020-07-16

What is the current resolution (mA) for the DPi32?

Asked by: bochia
The ma resolution would depend on the maximum current being measured. If you were to measure up to 999.9 ma you would have 0.1 resolution and if measuring up to 99.99 ma 0.01 would be your resolution.
Answered by: ANBENG
Date published: 2019-12-05

I have a CNi-1653-C24. How do I tell which Output options it has? Serial Number is 8150096

Asked by: DKHarris
Hi DKHarris, Model# determines outputs. In this case "53" indicates analog output and a relay output. "C24" indicates RS232 or RS485 output. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2020-11-18

I am successfully reading and changing settings on a CNi 1644 over RS232. I am using PID output. I would like to read what the output is. If it is turning on relays 75% of the time, I'd like to read a 75 somewhere.

Asked by: C in Pittsburgh
Thank you for your inquiry. Please contact our Temperature Team to discuss or email us at temp@omega.com
Answered by: Application Engineer JB
Date published: 2021-07-27

I have purchased 6 of these meters (CNI*33-EIT) and have them ready to be programmed. Reading all of the service information leaves me a little confused on how to actually program them with my laptop, Do I use a rs485 to rs232 adaptor or rs485

Asked by: catman
Hi Catman, This model has ethernet output only. You can connect to PC via ethernet. Best regards OMEGA
Answered by: AENorwalk
Date published: 2020-03-17
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Microprocessor-based Controller Self container Temperature controller
1 In Stock

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