Air Quality Transducer for oxygen for surface mounting, with display, with changeover contact, 0-10 V

SKU: FS4309

Category: Air Quality

Manufacturer: FuehlerSysteme

0...25% vol. optional 0...100% vol.
active output, 0-10 V
LCD-Display
hinge lock technology

Output O2: 0-10 V
Equipment: without

Display

Display, Relay

Relay
Measurement range O2: 0...25%

Low stock level

from 675,88 €

incl. 19% VAT , plus

This item has variations. Please select the requested variation.

The measuring device detects the oxygen level O2 (0...25/100% vol.) in the ambient air. The transmitter converts the measured value into a standardized, analog output signal 0-10 V. As an option, the measuring device has a backlit, rotatable display and potential-free changeover contact. In the version with a backlit LCD display, the measured values and min/max values and much more are displayed. The switching threshold and hysteresis can be set as required. The measuring device carries out an automatic calibration at regular intervals, whereby a long-term stable measurement is guaranteed. This can be deactivated if necessary or performed manually on the device at any time. The housing with innovative hinge locking technology, double PG screw connection, sufficient terminal space and easy-to-connect elevator terminals offers maximum installation freedom and speed. The oxygen measuring device is ideal for use in workplaces, medical facilities, HVAC applications and greenhouses.

Measurement range O2:	0...25% vol. optional 0...100% vol
Accuracy O2:	± 0,2% vol. + max. ±0,5% FS (@ 20°C, 45% r.H., 1013 mbar)
Temperature dependency:	±1% FS / 10 K
Long term stability:	±0,2% FS/year by auto-calibration ON
Sensor:	Electrochemical sensor
Response time (t90):	< 1 s
Supply voltage:	24 V DC (±5%)
Current consumption:	U operating: 50 mA (basic current); R: Peak 35 mA at the moment the relay is switched; D (DBL off): +3mA in addition to the basic current; D (DBL on): +15mA in addition to the basic current
Analogue output 0-10 V:	3-wire connection
Alarm output:	1 x potential-free change-over contact, 48 V, 1 A
Switching Hysteresis Relay:	2% of the selected scaling (without display), 0,5...5% of the selected scaling adjustable (with display)
Electrical connection:	screw/plug terminals max. 1,5 mm²
Display:	optional LCD display with backlight on/off/auto
Automatic calibration:	The automatic 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.
Cable gland:	PG11 high-strength cable gland with strain relief
Housing:	Polycarbonate PC UL 94 V0 with hinge locks, color signal white similar to RAL 9003
Dimensions:	Housing: L 89 x W 80 x H 47 mm
Protection type:	IP65 (housing/electronic), IP20 (sensor)
Protection class:	III
Working range r.H.:	0...98% r.H. in contaminant-free, non-condensing air
Working temperature:	0...+50°C
Manual calibration:	If automatic calibration is deactivated, manual calibration is recommended every 6-12 months. To do this, DIP switch 2 must be switched ON for 5 seconds with fresh air (desired zero point) and then OFF again.
Storage temperature:	-20...+50°C
Installation:	screw fastening
Approvals:	CE, RoHS