Air Quality Transducer for mixed gas VOC for flush mounting, with normally open contact, 0-10 V

SKU: RLU/A

Category: Air Quality

0...100% mixed gas VOC
0-10 V, NOC
automatic re-calibration

Output VOC: 0-10 V

0-10 V, normally open contact
Light switch program: GIRA Standard 55, pure white satin
Supply voltage: 24 V AC/DC

from 337,71 €

incl. 19% VAT , plus

This item has variations. Please select the requested variation.

The RLU/A flush mounted sensor for mixed gas registers the air quality in the range of 0...100% with respect to the calibration gas and converts this measured value into a linear output signal 0-10 V. The air quality that is defined as normal for the environment can be specified on initial start-up by manual calibration on the device (zero point balance). The air quality sensor performs an automatic calibration at regular intervals, long-term drifts and the operational wear of the sensor element are thus totally eliminated. For the device version with a closer the threshold value for the alarm/closing contact can be specified using a 270° potentiometer.

Measurement range VOC:	0-100% (good / bad air quality, referring to the calibration gas)
Accuracy:	±15% FS
Long term stability:	< 15% FS/year at norm load
Sensor:	metal oxide VOC-sensor
Response time (t90):	max. 60 s
Sensor protection:	mounted inside housing
Supply voltage:	24 V AC/DC (±5%)
Current consumption:	max. 60 mA
Analogue output 0-10 V:	3-wire connection, min. load resistance 100 kOhm
Alarm output:	potential-free normally open contact, threshold can be defined by 270° potentiometer
Switching Hysteresis Relay:	2% FS (without Display), 0,5...5% FS adjustable (with Display)
Electrical connection:	push terminals max. 1,5 mm²
Automatic calibration:	The automatic 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 with fresh air once for approx. 10 minutes within this period. The automatic calibration can be deactivated if necessary and performed manually.
Running-in time:	1 h
Initial operation:	After switch-on of the device follows a self-test and the tempering, which takes ca. 1 h depending on the environmental conditions. At this time the analogue output drifts from the actual measurement value.
Cable gland:	bottom side
Light switch program:	GIRA Standard 55, pure white satin (other on request)
Weight:	ca. 100 g
Protection type:	IP30
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 VOC calibration of the output signal to 1V (zero point) is started by pressing the button on the circuit board (hold down for approx. 5 seconds until the LED flashes). Before that, continuous operation of min. 2 hours with air defined as normal air quality. The LED is deactivated after successful calibration.
Storage temperature:	-20...+50°C
Installation:	into in-wall junction box, diameter 55 mm
Approvals:	CE, EAC, RoHS

FuehlerSysteme

Air Quality Transducer for mixed gas VOC for flush mounting, with normally open contact, 0-10 V

0...100% mixed gas VOC 0-10 V, NOC automatic re-calibration

from 337,71 € *