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1/8 DIN Horizontal and Vertical Dual Display PID Controllers

1/8 DIN Dual Display Temperature, Process and Strain PID Controllers


Item# CNI8DH33

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 $514.67
10-24 $488.94
25-49 $463.20
50-99 $437.47
100-499 $411.74
500+ $386.00

In stock

Lead Time (If not in stock): 6 weeks
1/8 DIN Dual Display Temperature, Process and Strain PID Controllers CNI8DH33 CNI8DH33
  • Embedded Ethernet Connectivity (Optional)
  • Dual Display with Bright Color-Changing Feature
  • Programmable Digital Filter
  • 2 Control or Alarm Outputs (Choice of DC Pulse, Solid State Relays, Mechanical Relays, Analog Voltage and Current)
  • Full Autotune PID Control
  • Built-In Excitation
  • Front Removable
  • Log data with Omega Enterprise Gateway(OEG)
  • CAD/STEP File download

CNI8DH33 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.

Thermocouple Type
Number of Channel
DIN Size
Number of Control Outputs
Control Output Type
Supply Voltage
Other Features
Communincation Protocols

  • Analog Voltage Input Ranges 0 to 100 mV
  • Communication Protocols (Sku Variant) Optional RS232/RS422/RS485
  • Analog Current Input Ranges 0 to 20 mA (5 Ω load)
  • Analog Input Accuracy 0.03% reading
  • Control Algorithms Time and amplitude proportional control modes selectable manual or auto PID
  • Control Mode Time and amplitude proportional control selectable manual or auto PID
  • Display Color Red
  • Display Digit Height 10.2 mm 21 mm
  • Maximum Ambient Humidity 90% RH non-condensing
  • Maximum Ambient Temperature 55 {C} (131 {F})
  • Isolation (I/O to I/O) Relay/SSR to Relay/SSR Output: 2300 Vac per 1 minute test RS232/485 to Input/Output: 500 Vac per 1 minute test
  • Isolation (Power to I/O) Power to Input/Output: 2300 Vac per 1 minute test For Low Voltage Power Option: 1500 Vac per 1 minute test
  • Measurement Type Temperature
  • Minimum Ambient Temperature 0 {C} (32 {F})
  • RTD Connection 2
  • RTD Curves Supported 385
  • RTD Types Supported 100/500/1000 Ω Pt sensor
  • Supply Frequency 50/60 Hz
  • Sampling Rate 3 samples per second
  • Thermocouple Type J


*For our newest line of controllers with Modbus connectivity, expanded ramp and soak programs, universal inputs, and simple PC programming, visit our CNPT Series.*

The OMEGA™ CNi8DH and CNi8DVare high-quality, highly accuratesingle loop autotune PID temperatureand process controllers for 1/8 DIN(92 x 45 mm) horizontal or verticalpanel cutouts. Both devices featurethe same state-of-the-art technology,uncompromising accuracy, andquality backed by an extended5-year warranty.

The CNi8DH and CNi8DV aresimple to configure and use, whileproviding tremendous versatility anda wealth of powerful features.

The CNi8DH and CNi8DV comestandard with your choice of2 control or alarm outputs in almostany combination: solid state relaysrated at 0.5 A @ 120/240 VacForm "C" SPDT relays rated at3 A @ 120/240 Vac pulsed 10 Vdcoutput for use with an external SSRor analog output (0 to 10 Vdc or0 to 20 mA) selectable for control orretransmission of the process value.

The universal temperature andprocess instrument (CNi8 models)offer a selection of 10 thermocoupletypes as well as 2-, 3- or 4-wireRTDs, process voltage and current.The CNi8DH and CNi8DV are idealcontrollers for use with transmittersand amplified transducers. Built-inexcitation is standard (24 Vdc@ 25 mA). The units handle0 to 20 mA process current andprocess voltage in 3 scales:0 to 100 mV, 0 to 1V, and 0 to 10V.

As with all iSeries devices, the processvalue display can be programmedto change color between GREEN, AMBER, or RED at any setpointor alarm point. The LEDs displayingthe process value on the CNi8DH(horizontal 1/8 DIN) are the largestdigits of any 1/8 DIN controller.

The strain/process instrument(model CNiS) meters and controllersmeasure inputs from load cells,pressure transducers, and most anystrain gage sensor. Input rangesinclude 0 to 100 mVdc -100 mVdcto 1 Vdc 0 to 10 Vdc in addition to0 to 20 mA. Excitation for transducersof 5 V and 10 V is standard.

The highly recommended networkingand communications options includedirect Ethernet LAN connectivitywith an embedded Web server, andserial communications. The C24serial communications optionincludes both RS232 and RS485which can be selected from themenu as well as astraightforward ASCII protocol. The C4EIT optionincludes both Ethernet and RS485ASCII on 1 device.

The iSeries, with the networkoptions, are designed for easyintegration with popular industrialautomation and control programsas well as Microsoft Visual Basicand Excel. OMEGA™ providesfree configuration software whichmakes it fast and easy to get upand running with many applications.Available for download off the Internet.
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Can you tell me what terminals/jumpers to use if I have a 2 or 3 wire RTD on a CNI8DH33? The online manual doesn't describe this but does show the 4 lead connection.

Asked by: dguyemura
Thank you for your inquiry. For wiring questions please e-mail us at
Answered by: Application Engineer CB
Date published: 2021-09-30
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