Carbon Dioxide Meter with PID Output

Short Description:

Model: TSP-CO2 Series

Key words:

CO2/Temperature/Humidity detection
Analog output with linear or PID control
Relay output
RS485

Short Description:
Combined CO2 transmitter and controller into a single unit, TSP-CO2 offering a smooth solution for air CO2 monitoring and control. Temperature and humidity (RH) is optional. OLED screen displays real-time air quality.
It has one or two analog outputs, monitor either CO2 levels or a combination of CO2 and temperature. The analog outputs can be choosed linear output or PID control.
It has one relay output with two selectable control modes, providing versatility in managing connected devices, and with Modbus RS485 interface, it can be easily integrate into a BAS or HVAC system.
Moreover a buzzer alarm is available, and it can trigger a relay on/off output for alerting and control purposes.

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Brief Introduction

Product Tags

FEATURES

• Real time measuring ambiance carbon dioxide and temperature and relative humidity
• NDIR infrared CO2 sensor with Self Calibration which makes CO2 measurement more accurate and reliable.
• Up to 15 years lifetime of CO2 sensor
• Provide one or two 0~10VDC/4~20mA which can be choosen linear outputs or PID control output
• One passive relay output is optional. It can control a fan or a CO2 generator. The control mode is easily selected.
• The 3-color LED indicates three CO2 level ranges
• Optional OLED screen displays CO2/Temp/RH measurements
• Buzzer alarm available
• RS485 interface with Modbus RTU
• 24VAC/VDC power supply
• CE-approval

TECHNICAL SPECIFICATIONS

General Data
Power supply	24VAC/VDC± 10%
Consumption	3.5 W max. ; 2.0 W avg.
Analog outputs	One 0~10VDC/4~20mA for CO2 measurementTwo 0~10VDC/4~20mA for CO2/Temperature measurements PID control output is selectable
Relay output	One passive relay output (max.5A) with the control mode selection (control a fan or a CO2 generator)
RS485 interface	Modbus protocol, 4800/9600(default)/19200/38400bps; 15KV antistatic protection, independent base address.
LED light selectable	3-color mode (default) Green: ≤1000ppm Orange: 1000~1400ppm Red: >1400ppmRed flashing: CO2 sensor faulty	Working light mode Green on: workingRed flashing: CO2 sensor faulty
OLED Display	Display CO2 or CO2/temp. or CO2/Temp./ RH measurements
Operation condition	-20~60℃; 0~99%RH, non condensing
Storage condition	0~50℃, 0~60%RH
Net Weight / Dimensions	190g /117mm(H)×95mm(W)×36mm(D)
Installation	wall mounting with 65mm×65mm or 2”×4”wire box
Housing and IP class	PC/ABS fireproof plastic material, protection class: IP30
Standard	CE approval
Carbon Dioxide
Sensing element	Non-Dispersive Infrared Detector (NDIR)
CO2 measuring range	0~2,000ppm (default)0~5,000ppm (selected in the advanced setup)
CO2 Accuracy	±60ppm + 3% of reading or ±75ppm (whichever is greater)
Temperature dependence	0.2% FS per℃
Stability	<2% of FS over life of sensor (10 year typical)
Pressure dependence	0.13% of reading per mm Hg
Calibration	ABC Logic Self Calibration Algorithm
Response time	<2 minutes for 90% step change typical
Signal update	Every 2 seconds
Warm-up time	2 hours (first time) / 2 minutes (operation)
Temperature and RH (option)
Temperature sensor (selectable)	Digital integrated temperature and humidity sensor SHT, or NTC thermistor
Measuring range	-20~60℃/-4~140F (default) 0~100%RH
Accuracy	Temp.: <±0.5℃@25℃ RH: <±3.0%RH （20%~80%RH）