Omega Products CNiTH User Manual

Humidity and Temperature Controllers

CNiTH-i8DV33-5

DPiTH Series CNiTH Series

All models shown

smaller than actual size.

CNiTH-i16D33-2

U Dual Loop

Control

U Humidity and

Temperature

U High Accuracy

±0.5°C and ±2% RH

U 4 Popular DIN Sizes U Ethernet and Serial

Communications (Optional)

U 2 Control or Alarm

Outputs (Optional)

U Choice of Relays,

SSR, DC Pulse, Analog Voltage and Current

U User-Friendly, Simple

to Configure

U Full Autotune PID Control U Programmable Ramp and

Soak for Humidity and/or Temperature

U Includes Temp/RH Sensor

The OMEGA® iTH Series instruments monitor and control both temperature and relative humidity. All meters and controllers in the series are high quality, highly accurate instruments featuring Omega’s award-winning iSeries technology, uncompromising accuracy, backed by an extended 5-year warranty.

The instruments are simple to configure and use, while providing tremendous versatility and a wealth of powerful features.

The OMEGA iTH Series instruments are available either as monitors or controllers. The monitors are extremely accurate programmable digital panel meters displaying humidity, temperature, or dew point. The controllers also provide dual loop control for both humidity

and temperature and are easily programmed for any control or alarming requirement from simple on/off to full autotune PID control.

The iTH family of meters and controllers are available in 4 DIN sizes with NEMA 4X (IP65) splash resistant bezels: the ultra compact

⁄32 DIN (the world’s smallest dual loop humidity and temperature controller); the popular midsize

⁄16 DIN square bezel with dual display; the 1⁄8 DIN vertical, and the

⁄8 DIN horizontal with the big, bright 21 mm (0.83") digits.

The OMEGA iTH Series LED displays can be programmed to change color between GREEN, AMBER, and RED at any setpoint or alarm point.

The iTH controller models offer a choice of 2 control or alarm outputs in almost any combination: solid state relays (SSR); form “C” SPDT (single pole double throw) relays; pulsed 10 Vdc output for use with an external SSR; or analog output selectable for control or retransmission of the process value.

The networking and communications options (highly recommended) include direct Ethernet LAN connectivity with an embedded Web server, and serial communications. The C24 serial communications option includes both RS232 and RS485. Protocols include both MODBUS® and a straightforward ASCII protocol. The C4EI option includes both Ethernet and RS485 ASCII/MODBUS on one device.

CNiTH-i8DH33-2

Hu-29

SenSor

included!

The iTH Series meters and controllers are designed for easy integration with popular industrial automation, data acquisition and control programs as well as Microsoft Visual Basic and Excel. OMEGA provides free configuration software which makes it fast and easy to get up and running. Available on CD ROM and for download on the Web.

Specifications

Control

Action: Reverse (heat) or direct (cool) Modes: Time and amplitude proportional

control modes; selectable manual or auto PID, proportional, proportional with integral, proportional with derivative with anti-reset windup and ON/OFF

Rate: 0 to 399.9 seconds Reset: 0 to 3999 seconds Cycle Time: 1 to 199 seconds; set to

0 for ON/OFF operation

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 Autotune: Operator initiated from front

panel for 1 input at a time only

Control Output 1 and 2

Relay: 250 Vac or 30 Vdc @ 3 A

(resistive load); configurable for on/off, PID, Ramp and Soak

Output 1: SPDT type, can be configured as alarm 1 output

Output 2: SPDT type, 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

CNiTH-i3233-5

(1.89 x 3.78 x 5)

POWER

OUTPUT2 OUTPUT1

BLACK

WHITE

GREEN

RED

SHIELD

N/C

Analog Output (Output 1 Only): Non-Isolated, Proportional 0 to 10 Vdc or 0 to 20 mA; 500 Ω maximum

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 maximum (output 1 only) (accuracy is ± 1% of FS when following conditions are satisfied):

1) Input is not scaled below 1% of Input FS

2) Analog out is not scaled below 3% of Output FS

Input

Accuracy/Range:

±2% for 10 to 90%; ±3% for 5 to 10% and 90 to 95% ±4% for 0 to 5% and 95 to 100%

Hysteresis: ±1% RH Non-linearity: ±3% Temperature Accuracy/Range*

±0.5°C for 5° to 45°C (±1°F for 41 to 113°F); up to ±1.5°C for -40° to 5°C and 45° to 124°C (up to ±2.7°F for -40° to 41°F and 113° to 255°F) Resolution: 0.1%, 12bit for RH; 0.1°C, 14 bit for temperature Response Time: 8 seconds, tau 63% for RH; 5 to 30 seconds, tau 63% for temperature

* Note: Extended temperature range is for industrial probe only, the controller’s operating temperature is 0 to 50°C.

Network and Serial Communications (For Options -C24, -C4EI, -EI)

Ethernet: Standards compliance

IEEE 802.3 10Base-T Supported Protocols: TCP/IP, ARP,

HTTPGET RS232/RS422/RS485: Selectable from

menu; both ASCII and MODBUS protocol selectable from menu; programmable 300 to 19.2 K baud; 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

General

A/D Conversion: 12-bit RH and 14-bit temp Reading Rate: 2 samples per sec max Digital Filter: Programmable

Display: 4-digit, 9-segment LED

i32, i16D, i8DV: 10.2 mm (0.40") i8: 21 mm (0.83") i8DH: 10.2 mm (0.40") and 21 mm (0.83")

RED, GREEN and AMBER

programmable colors for process variable, setpoint and temp units

Operating Temperature: 0 to 50°C (32 to 122°F), 90% RH non-condensing

Protection: i32, i16D: NEMA 4X (IP65) front bezel

i8DH, i8DV: NEMA 1 (IP23) front beze

Power: Refer to ordering guide below

No CE compliance above 60 Hz.

CNiTH-i8DH shown with -2 Probe

16 (0.63) DIA

1 m (3') CABLE

51 (2)

21.1 (0.83) SQ

48 H x 96 W x 127 D

CUTOUT: 45 H x 92 W (1.77 x 3.62)

For other mechanical drawings please visit

omega.com/ith for more information.

CNiTH-i8DV shown with -5 Probe

16 (0.63) DIA

3 m

(10')

CABLE

137 (5.4)

0.83 (21.1) SQ

96 H x 48 W x 127 D (3.78 x 1.89 x 5)

CUTOUT: 92 H x 45 W (3.62 x 1.77)

To Order Visit omega.com/ith for Pricing and Details

Model No. Description

DPiTH- (****) Monitor version, no control outputs CNiTH- (****) ( * * ) Controller version, select 2 control outputs i8DH Temperature and RH Input i8DV Temperature and RH Input i16D Temperature and RH Input i32 Temperature and RH Input

Control Outputs 2 2 2 solid state relays (SSR’s): 0.5 A @ 120/240 Vac continuous 2 3 SSR and relay: Form “C” SPDT 3A @ 120Vac, 3A @ 240Vac 2 4 SSR and pulsed 10 Vdc @ 20 mA (for use with external SSR) 3 3 2 Relays: Form “C” SPDT 3 A @ 120 Vac, 3 A @ 240 Vac 4 2 Pulsed 10 Vdc @ 20 mA (for use with external SSR) and SSR 4 3 Pulsed 10 Vdc @ 20 mA (for use with external SSR) and relay 4 4 2 pulsed 10 Vdc @ 20 mA (for use with external SSR) 5 2 Analog output selectable as either control or retransmission of process

value; 0 to 10 Vdc or 0 to 20 mA @ 500 Ω max & SSR

5 3 Analog output 0 to 10 Vdc or 0 to 20 mA @ 500 Ω max & relay

5 4 Analog out 0 to 10 Vdc or 0 to 20 mA @ 500 Ω max & pulse 10 V

-AL limit alarm version (simplified menu; no PID control)* RH/Temperature Probe (Must Select One)

-2 51 mm (2") probe for iTH with 1 m (3') cable

-5 127 mm (5") probe for iTH with 3 m (10') cable Power Supply * Standard power input: 90 to 240 Vac ±10%, 50 to 400 Hz, 110 to 375 Vdc,

equivalent voltage (*no entry required)

-DC Low voltage power option: 20 to 36 Vdc, 24 Vac ±10%; 12 to 36 Vdc, 24 Vac ±10% for iTH-32

Network Options

-EI Ethernet with Embedded Web Server*

-C24 Isolated RS232 and RS485/422. 300 to 19.2k Baud

-C4EI Ethernet with Embedded Web Server + Isolated RS485/422 hub for up to 31 devices*

Accessories

Software

OPC-SERVER LICENSE OPC server/driver software license (requires network option) iTHP-2

iTHP-5

*1 Analog output (Option 5) is not available with “-AL” units. *2 -C4EI or -EI option is not available on the

that can connect to a CNiTH-i32xx-x-C24. Units can be powered safely with 24 Vac power, but no certification for CE/UL are claimed.

Ordering Examples: CNiTH-i8DH43-5-C4EI is a horizontal a 5" probe and Ethernet with embedded Web server.

DPiTH-i16D-2-EI,

⁄16 DIN dual display with a 2" probe and Ethernet with embedded Web server.

51 mm (2") replacement probe for iTH with 1 m (3') cable 127 mm (5") replacement probe for iTH with 3 m (10') cable

⁄32 DIN. Refer to the iServer section for other Ethernet devices

⁄8 DIN dual display horizontal

⁄8 DIN dual display vertical

⁄16 DIN dual display

⁄32 DIN single display*

⁄8 DIN dual display with pulse and relay outputs,

Hu-30