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

i-Series Temperature, Process and Strain Controllers

$436.27

Item# CNI1623

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 $436.27
10-24 $414.46
25-49 $392.64
50-99 $370.83
100-499 $349.02
500+ $327.20

In stock

Lead Time (If not in stock): 6 weeks
i-Series Temperature, Process and Strain Controllers CNI1623 CNI1623
  • 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

CNI1623 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.

Measurement Type
Control Outputs
Form Factor
Input Type
Communications
Supply Voltage Type
Ramp And Soak
Display Type
Additional Feature
Output Type
Number Of Inputs


*Move on up to our newest line of PID Controller, the CNPT Platinum Series controllers with Modbus connectivity, expanded ramp and soak programs, universal inputs, and simple PC programming.*

The OMEGA™ iSeries is a family of microprocessor-based instruments offered in three true DIN sizes with NEMA 4 (IP65) rated front bezels. All of the instruments share the same set-up and configuration menu and method of operation, a tremendous time saver for integration of a large system. The iSeries family includes extremely accurate digital panel meters "DPi" and single loop PID controllers "CNi" that are simple to configure and use, while providing tremendous versatility and a wealth of powerful features.

The CNi Series covers a broad selection of transducer and transmitter inputs with 2 input models.

The universal temperature and process instrument (CNi models) handles 10 common types of thermocouples, multiple RTDs and several process (DC) voltage and current ranges. This model also features built-in excitation, 24 Vdc @ 25 mA. With its wide choice of signal inputs, this model is an excellent choice for measuring or controlling temperature with a thermocouple, RTD, or 4 to 20 mA transmitter.

The strain and process instruments (CNiS models) measure inputs from load cells, pressure transducers, and most any strain gage sensor as well as process voltage and current ranges. The CNiS has built-in 5 or 10 Vdc excitation for bridge transducers, 5 Vdc @ 40 mA or 10 Vdc @ 60 mA (any excitation voltage between 5 and 24 Vdc is available by special order). This CNiS model supports 4- and 6-wire bridge communications, ratiometric measurements. The CNiS features fast and easy "in process" calibration/ scaling of the signal inputs to any engineering units. This model also features 10-point linearization which allows the user to linearize the signal input from extremely nonlinear transducers of all kinds.

Programmable Color Display
The iSeries are 1/8, 1/16 and 1/32 DIN controllers featuring the big iSeries color-changing display. The digits are twice the size of typical 1/8 DIN panel meters. The iSeries meters feature the only LED displays that can be programmed to change color between GREEN, AMBER, and RED.

Embedded Internet and Serial Communications
Featuring optional "embedded Internet" (specify "-EIT" option) the iSeries are the first instruments of their kind that connect directly to an Ethernet network and transmit data in standard TCP/ IP packets, or even serve Web pages over a LAN or the Internet. The iSeries are also available with serial communications. With the "-C24" option, the user can select from the pushbutton menu between RS232, RS422, and RS485, with straightforward ASCII commands. If Modbus is required, we recommend our latest Platinum controllers - CNPT Series.


SPECIFICATIONS

Universal Temperature and Process Input (DPi/CNi Models)
Accuracy: Accuracy at 25°C: 0.5°C (±0.9°F) temp nominal, 0.03% Rdg ±0.03% range process and strain
Resolution: 1°/0.1° 10 µV process
Temperature Stability:
    RTD: 0.04°C/°C
    TC @ 25°C (77°F): 0.05°C/°C
    Cold Junction Compensation
    Process: 50 ppm/°C
NMRR: 60 dB
CMRR: 120 dB
A/D Conversion: Dual slope
Reading Rate: 3 samples/s
Digital Filter: Programmable
Display: 4-digit 9-segment LED 10.2 mm (0.40"); DPi/CNi32, DPi/CNi16, DPi/CNi16D, DPi/CNi8DV 21 mm (0.83"); DPi/CNi8 10.2 mm (0.40") and 21 mm (0.83"); DPi/CNi8DH RED, GREEN, and AMBER programmable colors for process variable, setpoint and temperature units
Input Types: Thermocouple, RTD, analog voltage, analog current
Thermocouple Lead Resistance: 100 Ω max
Thermocouple Types (ITS 90): J, K, T, E, R, S, B, C, N, L (J DIN)
RTD Input (ITS 68): 100/500/1000 Ω Pt sensor, 2-, 3- or 4-wire; 0.00385 or 0.00392 curve
Voltage Input: 0 to 100 mV, 0 to 1V, 0 to 10 Vdc
Input Impedance: 10 MΩ for 100 mV 1 MΩ for 1 or 10 Vdc
Current Input: 0 to 20 mA (5 Ω load)
Configuration: Single-ended
Polarity: Unipolar
Step Response: 0.7 sec for 99.9%
Decimal Selection:
    Temperature: None, 0.1
    Process: None, 0.1, 0.01 or 0.001
Setpoint Adjustment: -1999 to 9999 counts
Span Adjustment: 0.001 to 9999 counts
Offset Adjustment: -1999 to 9999
Excitation (Not Included with
Communication): 24 Vdc @ 25 mA (not available for low-power option)

Universal Strain and Process Input (DPiS/CNiS Models)
Accuracy: 0.03% reading
Resolution: 10/1µV
Temperature Stability: 50 ppm/°C
NMRR: 60 dB
CMRR: 120 dB
A/D Conversion: Dual slope
Reading Rate: 3 samples/s
Digital Filter: Programmable
Input Types: Analog voltage and current
Voltage Input: 0 to 100 mVdc, -100 mVdc to 1 Vdc, 0 to 10 Vdc
Input Impedance: 10 MΩ for 100 mV; 1 MΩ for 1V or 10 Vdc
Current Input: 0 to 20 mA (5 Ω load)
Linearization Points: Up to 10
Configuration: Single-ended
Polarity: Unipolar
Step Response: 0.7 sec for 99.9%
Decimal Selection: None, 0.1, 0.01 or 0.001
Setpoint Adjustment: -1999 to 9999 counts
Span Adjustment: 0.001 to 9999 counts
Offset Adjustment: -1999 to 9999
Excitation (Optional In Place Of Communication): 5 Vdc @ 40 mA; 10 Vdc @ 60 mA

Control
Action: Reverse (heat) or direct (cool)
Modes: Time and amplitude proportional control; selectable manual or auto PID, proportional, proportional with integral, proportional with derivative and anti-reset Windup, and on/off
Rate: 0 to 399.9 s
Reset: 0 to 3999 s
Cycle Time: 1 to 199 s; set to 0 for on/off
Gain: 0.5 to 100% of span; setpoints 1 or 2
Damping: 0000 to 0008
Soak: 00.00 to 99.59 (HH:MM), or OFF
Ramp to Setpoint:
00.00 to 99.59 (HH:MM), or OFF
Auto Tune: Operator initiated from front panel

Control Output 1 and 2
Relay: 250 Vac or 30 Vdc @ 3 A (resistive load); configurable for on/off, PID and ramp and soak
Output 1: SPDT, can be configured as alarm 1 output
Output 2: SPDT, can be configured as alarm 2 output
SSR: 20 to 265 Vac @ 0.05 to 0.5 A (resistive load); continuous
DC Pulse: Non-isolated; 10 Vdc @ 20 mA
Analog Output (Output 1 Only): Non-isolated, proportional 0 to 10 Vdc or 0 to 20 mA; 500 Ω max
Output 3 Retransmission
    Isolated Analog Voltage and Current
    Current: 10 V max @ 20 mA output
    Voltage: 20 mA max for 0 to 10 V output

Network and Communications
Ethernet: Standards compliance IEEE 802.3 10 Base-T
Supported Protocols: TCP/IP, ARP
RS232/RS422/RS485: Selectable from menu; both ASCII and Modbus protocol selectable from menu; programmable 300 to 19.2 Kb; complete programmable setup capability; program to transmit current display, alarm status, min/max, actual measured input value and status
RS485: Addressable from 0 to 199
Connection: Screw terminals

Alarm 1 and 2 (Programmable)
Type: Same as output 1 and 2
Operation: High/low, above/below, band, latch/unlatch, normally open/ normally closed and process/deviation; front panel configurations
Analog Output (Programmable): Non-isolated, retransmission 0 to 10 Vdc or 0 to 20 mA, 500 Ω max (output 1 only); accuracy is ±1% of FS when following conditions are satisfied: input is not scaled below 1% of input FS, analog output is not scaled below 3% of output FS

General
Power: 90 to 240 Vac ±10%, 50 to 400 Hz*, 110 to 375 Vdc, equivalent voltage
Low Voltage Power Option: 24 Vac**, 12 to 36 Vdc for DPi/CNi/DPiS/CNiS; 20 to 36 Vdc for dual display, ethernet, and isolated analog output from qualified safety approved source

Isolation
Power to Input/Output: 2300 Vac per 1 minute test
For Low Voltage Power Option: 1500 Vac per 1 minute test
Power to Relay/SSR Output: 2300 Vac per 1 minute test
Relay/SSR to Relay/SSR Output: 2300 Vac per 1 minute test
RS232/485 to Input/Output: 500 Vac per 1 minute test
Environmental Conditions:
    All Models: 0 to 55°C (32 to 131°F) 90% RH non-condensing
    Dual Display Models: 0 to 50°C (32 to 122°F), 90% RH non-condensing (for UL only)
Protection:
    DPi/CNi/DPiS/CNiS32, 16, 16D, 8C: NEMA 4X/Type 4 (IP65) front bezel
    DPi/CNi8, 8DH, 8DV: NEMA 1/Type 1 front bezel
    Approvals: UL, C-UL, CE per EN61010- 1:2001
Dimensions
    DPi/CNi8 Series: 48 H x 96 W x 127 mm D (1.89 x 3.78 x 5")
    DPi/CNi16 Series: 48 H x 48 W x 127 mm D (1.89 x 1.89 x 5")
    DPi/CNi32 Series: 25.4 H x 48 W x 127 mm D (1.0 x 1.89 x 5")
Panel Cutout
    DPi/CNi8 Series: 45 H x 92 mm W (1.772 x 3.622"), 1.8 DIN
    DPi/CNi16 Series: 45 mm (1.772") square, 1.16 DIN
    DPi/CNi32 Series: 22.5 H x 45 mm W (0.886 x 1.772"), 1.32 DIN
Weight
    DPi/CNi8 Series: 295 g (0.65 lb)
    DPi/CNi16 Series: 159 g (0.35 lb)
    DPi/CNi32 Series: 127 g (0.28 lb)
* No CE compliance above 60 Hz.
** Units can be powered safely with 24 Vac power, but no certification for CE/UL are claimed.


THERMOCOUPLE CHART
Universal Temperature / Process
Input Type
Range
Accuracy
Process Voltage
0 to 100 mV, 0 to 1 V, 0 to 10 Vdc
0.03% Rdg ±0.03% range
Process Current
0 to 20 mA (4 to 20 mA)
0.03% Rdg ±0.03% range
Excitation
24 V @ 25 mA
J
Iron-Constantan
-210 to 760°C / -346 to 1400°F
0.4°C / 0.7°F
K
CHROMEGA™-ALOMEGA™
-270 to -160°C / -160 to 1372°C
-454 to -256°F / -256 to 2502°F
1.0°C / 0.4°C
1.8°F / 0.7°F
T
Copper-Constantan
-270 to -190°C / -190 to 400°C
-454 to -310°F / -310 to 752°F
1.0°C / 0.4°C
1.8°F / 0.7°F
E
CHROMEGA™-Constantan
-270 to -220°C / -220 to 1000°C
-454 to -364°F / -364 to 1832°F
1.0°C / 0.4°C
1.8°F / 0.7°F
R
Pt/13%Rh-Pt
-50 to 40°C / 40 to 1768°C
-58 to 104°F / 104 to 3214°F
1.0°C / 0.5°C
1.8°F / 0.9°F
S
Pt/10%Rh-Pt
-50 to 100°C / 100 to 1768°C
-58 to 212°F / 212 to 3214°F
1.0°C / 0.5°C
1.8°F / 0.9°F
B
30%Rh-Pt/6%Rh-Pt
100 to 640°C / 640 to 1820°C
212 to 1184°F / 1184 to 3308°F
1.0°C / 0.5°C
1.8°F / 0.9°F
C
5%Re-W/26%Re-W
0 to 2320°C / 32 to 4208°F
0.4°C / 0.7°F
N
Nicrosil-Nisil
-250 to -100°C / -100 to 1300°C
-418 to -148°F / -148 to 2372°F
1.0°C / 0.4°C
1.8°F / 0.7°F
L
J DIN
-200 to 900°C / -328 to 1652°F
0.4°C / 0.7°F
RTD
Pt, 0.00385, 100, 500, 1000 ohm
-200 to 900°C / -328 to 1652°F
0.4°C / 0.7°F
RTD
Pt, 0.00392, 100, 500, 1000 ohm
-200 to 850°C / -328 to 1562°F
0.4°C / 0.7°F

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Rated 5 out of 5 by from Great This item works Great. I found it to be very affordable.
Date published: 2022-08-01
Rated 5 out of 5 by from No Complaints No complaints here. Customer Service is fantastic!
Date published: 2022-02-10
Rated 1 out of 5 by from Controllers burn w/ no reason, no customer service The controller is OK in general. Programming is is not intuitive, but manageable. The problem is quality and customer service. Recently 2 out of 10 controllers we purchased just exploded when plugged into 110V outlet. Not only they have burnt but they also have destroyed attached pressure transducers attached to them - $1,000+ total damage without any reason. I reported this to the customer service several weeks ago and was promised that somebody will get back to me, but no answer so far. We have been using these controllers for more than 10 years without major problems, but now I am considering replacing them with something that does not explode without any reason when powered up.
Date published: 2021-05-03
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loading all QA

Do the ethernet-enabled controllers support API? I received the M3397 manual with the commands and functions but wanted to know if there was an API?

Asked by: SG347
Hi SG347, Thank you for the inquiry. We do not offer an API for the iSeries ethernet version. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2023-06-18

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

Besides the alarm, what are the differences between CNi16D33-AL and CNi16D33? I don't see the dimensions or specs online.

Asked by: Kim27
Thank you for your inquiry Kim27. The only difference is that CNi16D33-AL is a PID controller with an alarm and CNi16D33 doesn't have an alarm. Here is the link to the spec sheet: https://assets.omega.com/spec/CNI-Series_spec.pdf
Answered by: Application Engineer SP
Date published: 2022-02-10

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

Does the CNI16D33-EIT have two outputs suitable for operating a low power DC tape heater and Peltier cooler? Will a Peltier cooler function properly the PID loop?

Asked by: Jackem
Thank you for your inquiry. You can operate devices at 30 Vdc @ 3 Amps (Both MAXIMUM Value) using PID Control
Answered by: ENGINEER CB
Date published: 2021-10-20

Thanks. I tried your link, but M3397 does not exist on the page, nor does M339. I was at https://www.omega.com/en-us/pdf-manuals. The letters "comm" appear four times, none of which were the right manual. Could you make sure it's available externally?

Asked by: C in Pittsburgh
Hi C in Pittsburgh, Please try the following; https://assets.omega.com/manuals/M3397.pdf Best regards OMEGA
Answered by: AENorwalk
Date published: 2023-02-23

Will the SPDT relays be able to directly control a 240V and/or 120V heat tape?

Asked by: trist
The i series relays are rated to switch 120 to 240 VAC 3 Amps.
Answered by: Applications Engineer ANB
Date published: 2023-08-17

What wire size range should be used for the input connections? I looked but cannot find it anywhere in your documentation.

Asked by: Mark Roberson
The 8 pin connector (for power and outputs) can have a wire size from 22 to 12 gage. The 10 pin connector (for inputs) can have a wire size from 28 to 16 gage. Thanks for connecting with Omega!
Answered by: Jane
Date published: 2019-04-30
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