Omega Products CNi8C23 User Manual

1

54.84

(2.159)

⁄8 DIN Ultra Compact Case, Temperature,

Process and Strain PID Controllers

CNi8C Series

CNi8C33, shown smaller than actual size.

U Ultra Compact 1⁄8 DIN Controller
U Built-In Excitation
U NEMA 4 (IP65) Bezel
U RS232, RS422/485 or MODBUS

Communication, Menu Selectable

The ultra-compact CNi8C and CNi8SC controllers
are similar to the full size CNi8 in an ultra-compact
enclosure. Only 51 mm (2") behind the panel.

Options
Ordering Suffix Description

Limit alarm version

-AL

Simplified menu (on/off

-SM

Network Options

Isolated RS232 and RS485/422,

-C24

Power Supply

-DC 12 to 36 Vac/dc, 24 Vac
Factory Setup

-FS Factory setup and configuration

Factory scaled for MIL-T-7990B

-FS(RTD-1N)

Factory scaled for MIL-T-7990B

-FS(RTD-2N)

Software (Requires Network Option)

OPC-SERVER OPC server/driver

LICENSE software license

1

*

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

2

*

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

3

*

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

(simplified menu, alarms only,
no PID control)

or alarms, no PID)

300 to 19.2 Kb

2

*

control

3

*

1

*

Standard power input:
90 to 240 Vac/dc, 50 to 400 Hz
(no entry required)

1

*

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

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

ULTRA

COMPACT

Dimensions:
mm (inch)

To Order

Visit omega.com/cni_series for Pricing and Details

(2.159)

104.10 (4.100)

54.84

CNi8C

CNi8

Model No. Output 1 Output 2

1

⁄8 DIN Compact Case with 2 Control Outputs

CNi8C33 Relay Relay
CNi8C34 Relay DC pulse
CNi8C44 DC pulse DC pulse
CNi8C22 0.5 A SSR 0.5 A SSR
CNi8C23 0.5 A SSR Relay
CNi8C24 0.5 A SSR DC pulse
CNi8C53 Analog Relay
CNi8C54 Analog DC pulse
CNi8C52 Analog 0.5 A SSR

1

⁄8 DIN Compact Case Strain/Process

Input

with 2 Control Outputs
CNiS8C33 Relay Relay
CNiS8C44 DC pulse DC pulse
CNiS8C43 DC pulse Relay
CNiS8C42 DC pulse 0.5 A SSR
CNiS8C22 0.5 A SSR 0.5 A SSR
CNiS8C23 0.5 A SSR Relay
CNiS8C24 0.5 A SSR DC pulse
CNiS8C53 Analog Relay
CNiS8C54 Analog DC pulse
CNiS8C52 Analog 0.5 A SSR

Comes complete with operator’s manual.

Ordering Examples: CNi8C33,

process controller with 2 relay outputs.

1

DIN compact universal temperature

⁄

8

P-21P-21

Common Specifications

(All

i/8, i/16, i/32 DIN)

Universal Temperature and
Process Input (DPi/CNi Models)

Accuracy: ±0.5°C temp; 0.03% rdg
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"); i32, i16, i16D, i8DV
21 mm (0.83"); i8 10.2 mm (0.40") and
21 mm (0.83"); i8DH 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

Network and Communications

Ethernet: Standards compliance

IEEE 802.3 10 Base-T
Supported Protocols:
TCP/IP, ARP, HTTPGET
RS232/RS422/RS485: Selectable from
menu; both ASCII and MODBUS protocol
selectable from menu; p
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

rogrammable

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 i/8, i/16, 1/32; 20 to
36 Vdc for CNi8DH, CNi8DV, CNi16D
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
CNi8DV, CNi8DH, CNi16D:
0 to 50°C (32 to 122°F), 90% RH
non-condensing (for UL only)
Protection:
CNi32, CNi16, CNi16D, CNi8C:

NEMA 4X/Type 4 (IP65) front bezel
CNi8, CNi8DH, CNi8DV:
NEMA 1/Type 1 front bezel
Approvals: UL, C-UL, CE per
EN61010- 1:2001

Dimensions
i/8 Series: 48 H x 96 W x 127 mm D

(1.89 x 3.78 x 5")
i/16 Series: 48 H x 48 W x 127 mm D
(1.89 x 1.89 x 5")
i/32 Series: 25.4 H x 48 W x 127 mm D
(1.0 x 1.89 x 5")

Panel Cutout
i/8 Series: 45 H x 92 mm W

(1.772 x 3.622"),
i/16 Series: 45 mm (1.772") square,

1

DIN

⁄

16

i/32 Series: 22.5 H x 45 mm W
(0.886 x 1.772"),

Weight
i/8 Series: 295 g (0.65 lb)
i/16 Series: 159 g (0.35 lb)
i/32 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.

1

⁄

8

1

⁄

32

DIN

DIN

at any

setpoint

Patented

Totally
Programmable
Color Displays

P

P

P-22

P-22