Air Quality Transducer for CO2, mixed gas VOC, humidity, temperature, atm./bar. air pressure for surface mounting, with display, with changeover contact, 0-10 V or 4-20 mA

SKU: CO2-M/A

Category: Air Quality

Manufacturer: FuehlerSysteme

CO2, VOC, r.H., °C, mbar
0-10 V, 4-20 mA, relay
protection type IP65
hinge lock technology

Output: 0-10 V, changer

4-20 mA, changer
Description: CO2: 0-2000/5000/10000 ppm , VOC: 0-100%, Humidity: 0...100% r.F., Temperature: -30...+70°C/-20...+80°C/0...+50°C/0... +100°C, Air pressure: 750...1150 mbar

Low stock level

from 941,16 €

incl. 19% VAT , plus

This item has variations. Please select the requested variation.

low", "medium" and "high".

Measurement range atm. air pressure:	750-1150 mbar
Measurement range temp.:	-30...+70°C, -20...+80°C, 0...+50°C, 0...+100°C selectable by DIP switch
Measurement range abs. humidity:	0-50 g/m³, 0-80 g/m³ (calculated) selectable by DIP switch
Measurement range bar. air pressure:	750-1150 mbar
Measurement range CO2:	0-10000 ppm, scales: 0-2000/5000/10000 ppm
Measurement range air fuel ratio:	0-50 g/kg, 0-80 g/kg (calculated) selectable by DIP switch
Measurement range r.H.:	0-100% r.H.
Measurement range dew point:	-20...+50°C DP, -20...+80°C DP, 0...+50°C DP (calculated) selectable by DIP switch
Measurement range VOC:	0-100% (good / bad air quality, referring to the calibration gas)
Scales:	0-2000/5000/10000 ppm
Accuracy:	CO2: 0-2000 ppm: ±50 ppm + 2% f. mv, 0-5000 ppm: ±50 ppm + 3% f. mv, 0-10000 ppm: ±100 ppm + 5% f. mv; VOC: ±15% FS; Humidity: ±3% r.H. (30%...70% r.H., else ±5% r.H. at 20°C); Temperature: 0,5 K (at 15...35°C, else ±1 K); all specifications at 20°C, 45% r.h., 1013 mbar, auto-calibration ON;
Temperature dependency:	CO2: ±5 ppm / K, Humidity: ±0,04% r.H. / K; Temperature: ±0,1°C / 10 K
Long term stability:	±1% FS/year
Sensor:	CO2: nondispersive infrared sensor (NDIR); VOC: metal oxide sensor; Humidity/Temperature: capacitive humidity sensor, Air pressure: piezoresistive on-chip silicon sensor
Sensor protection:	sinter filter, mounted inside housing
Supply voltage:	24 V AC/DC (±5%)
Current consumption at 0-10 V:	Ø 100 mA
Current consumption at 4-20 mA:	ca. 200 mA
Analogue output 0-10 V:	3-wire connection
Analogue output 4-20 mA:	3-wire connection
Alarm output:	1 x potential-free change-over contact, 48 V, 1 A
Switching Hysteresis Relay:	0,02
Electrical connection:	screw terminals max. 1,5 mm²
Display:	LCD display with backlight
Automatic calibration:	The automatic CO2/VOC calibration takes place every 7 days, this compensates for any drifts and achieves excellent long-term stability. To ensure this function, the device must be supplied with power for at least 7 days without interruption and ventilated once with fresh air (CO2 300...400 ppm) for approx. 10 minutes within this period. For the CO2 calibration, the device saves the minimum CO2 value measured during this period internally. After 7 days, this minimum value is normalized to 400 ppm CO2 and the output signal corrected accordingly. The maximum correction is limited to half of the determined drift. If the measured value falls below approx. 300 ppm, the calibration is initialized to 400 ppm. The automatic calibration can be deactivated and performed manually if necessary.
Pressure dependency:	CO2: air pressure compensated
Running-in time:	10 min
Initial operation:	After switch-on of the device follows a self-test and the tempering, which takes ca. 10 minutes depending on the environmental conditions. At this time the analogue output drifts from the actual measurement value.
Cable gland:	M16x1,5 high-strength cable gland with strain relief
Housing:	ABS housing with hinge closure, colour light grey like RAL 7024
Dimensions:	Housing: L 150 x W 80 x H 62 mm
Protection type:	IP65 (housing), IP54 (probe)
Protection class:	III
Working range r.H.:	0...98% r.H. in contaminant-free, non-condensing air
Working temperature:	0...+50°C
Manual calibration:	The manual calibration of the output signal to 400 ppm (CO2 zero point) respectively 1 V (VOC zero point) will be started by pushing the button on the circuit board (push ca. 5 s until "CAL" appears in the display). Before this it is to ensure a non-stop operating of min. 10 minutes on fresh air. After successful calibration "CAL" disappears from the display.
Storage temperature:	-20...+50°C
Installation:	screw fastening
Approvals:	CE, EAC, RoHS