Omega Products CNi823 User Manual

⁄8 DIN Temperature, Process

and Strain PID Controllers

U High Qualty U 5-Year Warranty U High Accuracy: ±0.5°C

(±0.9°F), 0.03% Reading

U User-Friendly,

Simple to Conﬁgure

U Free Software U Full Autotune PID Control U Universal Inputs: RTD,

Thermocouple, Process Voltage/Current, Strain

U Totally Programmable

Color Displays Standard

U Built-In Excitation

Standard

U 2 Control or Alarm

Outputs: DC Pulse, Mechanical Relays, Analog Voltage and Current

U Embedded Internet

Connectivity Available

The OMEGA® CNi8 is a 1⁄8 DIN size [96 x 48 mm (3.7 x 1.9")] digital panel meter featuring the big iSeries color-changing display. The digits are twice the size of typical

⁄8 DIN panel meters. The iSeries meters feature the only LED displays that can be programmed to change color between GREEN,

AMBER, and RED at any setpoint

or alarm point. The “CNi8” model is available as an extremely accurate programmable digital panel meter with no outputs or with dual outputs for controlling or alarming functions. Other options include isolated programmable analog output, serial communications, MODBUS and Ethernet. The user can easily program the CNi8 for any control or alarming requirement from simple on/off to full autotune PID with a choice of form C SPDT relays, solid state relays, DC pulse, and analog (voltage and current) outputs.

Fully isolated analog output for retransmission of the process value is available in addition to the control and alarm relays (specify model CNi8A33).

The CNi8 covers a broad selection of transducer and transmitter inputs with 2 input models:

CNi8 Series

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

Universal Process Process Voltage 0 to 100 mV, 0 to 1 V, 0 to 10 Vdc 0.03% rdg

Process Current 0 to 20 mA (4 to 20 mA) 0.03% rdg Excitation 24 V @ 25 mA —

Universal Strain/Process Process Voltage 0 to 100 mV, -100 to 1 V, 0 to 10 Vdc 0.03% rdg

Process Current 0 to 20 mA (4 to 20 mA) 0.03% rdg Excitation 5 V @ 40 mA, 10 V @ 60 mV —

Nickel RTD Input (FS Required)

RTD-1N (Nickel MIL-T-7990B) 0 to 200°C (32 to 392°F) 0.1°C (0.2°F) RTD-2N (Nickel MIL-T-7990B) -40 to 300°C (-40 to 572°F) 0.3°C (0.5°F) Temperature Iron-Constantan -210 to 760°C (-346 to 1400°F)

-270 to -220°C/-220 to 1000°C 1.0°C/0.4°C

-50 to 40°C/40 to 1768°C 1.0°C/0.5°C

-50 to 100°C/100 to 1768°C 1.0°C/0.5°C

100 to 640°C/640 to 1820°C 1.0°C/0.5°C

5%Re-W/26%Re-W 0 to 2320°C

-250 to -100°C/-100 to 1300°C 1.0°C/0.4°C

J DIN -200 to 900°C

Pt, 0.00385, 100, 500, 1000 -200 to 900°C Pt, 0.00392, 100, 500, 1000 -200 to 850°C

Input Type Range Accuracy

CHROMEGA™-ALOMEGA

Copper-Constantan

CHROMEGA™-Constantan

Pt/13%Rh-Pt

Pt/10%Rh-Pt

30%Rh-Pt/6%Rh-Pt

Nicrosil-nisil

Shown smaller than actual size.

current ranges. The CNiS has builtin 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 conﬁgurations, ratiometric and non-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.

0.4°C (0.7°F)

-270 to -160°C/-160 to 1372°C 1.0°C/0.4°C

™

(-454 to -256°F/-256 to 2502°F) (1.8°F/0.7°F)

-270 to -190°C/-190 to 400°C 1.0°C/0.4°C

(-454 to -310°F/-310 to 752°F) (1.8°F/0.7°F)

(-454 to -364°F/-364 to 1832°F) (1.8°F/0.7°F)

(-58 to 104°F/104 to 3214°F) (1.8°F/0.9°F)

(-58 to 212°F/212 to 3214°F) (1.8°F/0.9°F)

(212 to 1184°F/1184 to 3308°F) (1.8°F/0.9°F)

(32 to 4208°F)

(-418 to -148°F/-148 to 2372°F) (1.8°F/0.7°F)

(-328 to 1652°F) (-328 to 1652°F) (-328 to 1652°F)

0.4°C

(0.7°F)

(0.7°F) (0.7°F) (0.7°F)

P-13

Patented

Totally Programmable Color Displays

at any setpoint

Dimensions: mm (inch)

TOP VIEW

22.9 (0.90)

104.1 (4.10)

max

The OMEGA® i/8, i/16, and i/32 are the ﬁrst complete series of 1⁄8, 1⁄16 and 1⁄32 DIN process control instruments with totally programmable color displays. The display can be programmed to change color at any setpoint or alarm point.

Options Ordering Sufﬁx Description

-AL Limit alarm version (simpliﬁed

menu, alarms only, no PID control)*3*

-SM Simpliﬁed menu (on/off control or

alarms, no PID)*

Network Options

-EI Ethernet with embedded

Web server

-C24 Isolated RS232 and RS485/422, 300 to 19.2 Kb*

-C4EI

Ethernet with embedded Web server + isolated RS485/422 hub for up to 31 devices*

Power Supply

-DC 2 to 36 Vac/dc, 24 Vac* Factory Setup

-FS Factory setup and conﬁguration

-FS(RTD-1N) Factory scaled for MIL-T-7990B

nickel RTD input, 0 to 200°C (32 to 392°F)

-FS(RTD-2N) Factory scaled for MIL-T-7990B

nickel RTD input,-40 to 300°C (-40 to 572°F)

Software (Requires Network Option) OPC-SERVER OPC server/driver software license

LICENSE

Ethernet options are not availabe for the i8A controller.

“-DC”, “-C24”, and “-C4EI” not available with excitation.

Analog output is not available with “-AL” units.

CNi8A-AL contains 1 alarm and 1 analog retransmission

20 to 36 Vdc for CNi8A.

“-SM” option not avaialbe on CNiS strain models.

2*5

96.0 (3.78)

48.0 (1.89)

To Order

Visit omega.com/cni8_series for Pricing and Details

Model No. Output 1 Output 2 2 Control Outputs CNi833 Relay Relay CNi844 DC pulse DC pulse CNi843 DC pulse Relay CNi842 DC pulse 0.5 A SSR CNi822 0.5 A SSR 0.5 A SSR CNi823 0.5 A SSR Relay CNi824 0.5 A SSR DC pulse CNi853 Analog Relay CNi854 Analog DC pulse CNi852 Analog 0.5 A SSR 2 Control Outputs with Isolated Analog Output CNi8A33 Relay Relay CNi8A44 DC pulse DC pulse CNi8A43 DC pulse Relay CNi8A42 DC pulse 0.5 A SSR CNi8A22 0.5 A SSR 0.5 A SSR CNi8A23 0.5 A SSR Relay CNi8A24 0.5 A SSR DC pulse Strain/Process Input with 2 Control Outputs CNiS833 Relay Relay CNiS834 Relay DC pulse CNiS844 DC pulse DC pulse CNiS843 DC pulse Relay CNiS842 DC pulse 0.5 A SSR CNiS822 0.5 A SSR 0.5 A SSR CNiS823 0.5 A SSR Relay CNiS824 0.5 A SSR DC pulse CNiS853 Analog Relay CNiS854 Analog DC pulse CNiS852 Analog 0.5 A SSR

Comes complete with operator’s manual. Ordering Examples: CNi8A22,

isolated analog output and 2 SSR outputs. CNiS833, process controller with 2-relay outputs.

DIN temp/process controller with

⁄

DIN strain/

⁄

P-14