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CNITH-Series
1/32, 1/16, and 1/8 DIN Humidity and Temperature Controllers
- Output 1 - Humidity
- Output 2 - Temperature
- 4 Popular DIN Sizes
- Ethernet and Serial Communications (optional)
The CNITH Series recently received a hardware upgrade. If there's an issue with the probe during use, please refer to the link at the bottom of the page under 'Software and Drivers' to download the firmware update.
While this item has an extended lead time, our RHCN-7000 series offer similar specs and shorter wait times.CNITH-Series
From
TWD
22,915
Product Overview
- A/D Conversion A/D Conversion: 12-bit RH and 14-bit temp Reading,Rate: 2 samples per sec max,Digital Filter: Programmable Decimal Selection: None, 0.1 for temperature and humidity
- Display Type Note 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
- Input Note Input Accuracy/Range @ 25C - Non-condensing: ±3% for 10 to 90%; ±3.5% 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.
- Input Type Digital
- Measurement Type Temperature, Humidity
- Number of Inputs 2
- Number of Outputs 2
- Operating Temperature, Max 50 °C
- Operating Temperature, Min 0 °C
- Output Detail 2 solid state relays (SSR’s): 0.5 A @ 120/240 Vac continuous
- Ramp and Soak Single Ramp & Soak
- Relative Humidity 90% RH non-condensing
- Samples,Max 2/sec
- Series ID CNITH-Series
Supported Applications
The Omega CNiTH and DPiTH Series are high-accuracy instruments designed to monitor and control both temperature and relative humidity. The series includes controller versions (CNiTH) with selectable dual outputs for process regulation, as well as monitor-only versions (DPiTH). These units feature full autotune PID control capabilities and programmable ramp and soak functions.
Operating Conditions & Performance
The controllers measure relative humidity from 0 to 100% RH with a resolution of 0.1%. Temperature measurement ranges cover -40°C to 124°C for extended range probes, while the controller operating ambient temperature is specified as 0 to 50°C (32 to 122°F) at up to 90% RH non-condensing.
Accuracy specifications vary by humidity level:
- ±0.5°C for temperature
- ±3% RH for 10 to 90% RH
- ±3.5% RH for 5 to 10% and 90 to 95% RH
- ±4% RH for 0 to 5% and 95 to 100% RH
The response time is documented as 8 seconds (tau 63%) for relative humidity and 5 to 30 seconds (tau 63%) for temperature. Hysteresis is ±1% RH.
Configuration Options
The series supports four DIN sizes: 1/32, 1/16, 1/8 horizontal dual display (i8DH), and 1/8 vertical dual display (i8DV). Enclosure ratings differ by size:
- i32 and i16D models feature a NEMA 4X (IP65) front bezel
- i8DH and i8DV models feature a NEMA 1 (IP23) front bezel
Control outputs are configurable via the model code, offering combinations of:
- Relay: Form 'C' SPDT; 250 Vac @ 3 A or 30 Vdc @ 3 A (resistive load)
- Solid State Relay (SSR): 20 to 265 Vac @ 0.05 to 0.5 A continuous
- DC Pulse: Non-isolated; 10 Vdc @ 20 mA for use with external SSRs
- Analog Output (Output 1 Only): Non-isolated control or retransmission of process value, selectable as 0 to 10 Vdc or 0 to 20 mA into a maximum load resistance of 500Ω. Accuracy is ±1% of full scale.
A limit alarm version (-AL) offers simplified menus without PID control; note that analog output (Option 5) is not available with -AL units. Power supply options include standard universal input (90 to 240 Vac ±10%, 50 to 400 Hz, or 110 to 300 Vdc) and low voltage inputs (20 to 36 Vdc/24 Vac for most models; 12 to 36 Vdc/24 Vac for iTH-32). Units can be powered safely with 24 Vac, though no UL certification is claimed for this specific configuration.
Network connectivity options include isolated RS232 and RS485/422 (300 to 19.2k Baud), Ethernet with Embedded Web Server (-EIT), or a combined hub option supporting up to 31 devices (-C4EIT). The -C4EIT or -EIT options are not available on the 1/32 DIN size.
Key Product Differences
The series distinguishes between monitor-only (DPiTH) and controller (CNiTH) versions. Physical dimensions vary by housing style: CNITH-i8DH measures 48 H x 96 W x 127 D mm, while the vertical variant CNITH-i8DV is 96 H x 48 W x 127 D mm.
Probe selection is required for all units. Options include a -2 probe with an insertion length of 51 mm (2") and a 1 m cable, or a -5 probe with an insertion length of 127 mm (5") and a 3 m cable. The probe diameter is 18 mm (0.63 in). Replacement probes are available as ITHP-2 and ITHP-5 accessories.
LED displays can be programmed to change color between green, amber, and red at alarm points. All instruments carry a 5-year warranty and are RoHS 2 compliant.
PDFs & Manuals
Software & Drivers
