An evaluation unit for the Centec thermal-conductivity sensor family. It complements NITROTEC TC and HYDROTEC TC and continuously measures N₂ or H₂ concentration and medium temperature in liquid and gas phases. Parameters can be adjusted to the measuring conditions and operating requirements. The stainless-steel enclosure is designed for continuous process measurements in demanding applications.
 
Operation and Integration
 
 
 
Continuous LCD display of concentration, medium temperature and real-time clock.
 
 
Quick configuration using function keys and on-screen menus.
 
 
PIN-code-protected access levels and software-guided sensor calibration.
 
 
Configurable concentration alarms and integration via digital and analog outputs.
 
 
Technical Data
 
Power Supply: 85-230 VAC, 50/60 Hz
 
Power consumption: Max 20 W
 
Operating conditions: -5 °C to 50 °C
 
Enclosure: Stainless steel, IP65 / Nema4X
 
Weight: 3.0 kg
 
Dimensions: 230 × 180 × 75 mm
 
Dissolved range: N₂ 0-350 ppm · H₂ 0-2 ppm
 
Gaseous range: N₂ 0-20 bar · H₂ 0-1.5 bar
 
Dissolved display units: ppm, ppb, mg/l
 
Dissolved resolution: 0.01 ppb
 
Gaseous display units: %-ppm, kPa
 
Gaseous resolution: 0.01 ppm
 
Displayed data: Temperature, measured value, real-time clock, membrane type
 
Alarm outputs: High/low or high/high-high relays, resistive load 125 VAC / 20 VDC
 
Thermal cut-off: Factory setting +40 °C / 140 °F, adjustable via software
 
Digital outputs: RS 232 / RS 485
 
Analog outputs: 0-20 mA / 4-20 mA
 
Calibration: Single-point air and direct calibration
 
Compatible sensors: NITROTEC TC · HYDROTEC TC