AO-KLT/A Air Duct quality sensor for mixed gas (VOC) and temperature

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AO-KLT/A Duct Air quality sensor for mixed gas (VOC) and temperature

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Manufacturer: Fuehler Systeme

Condition: New

0...100% mixed gas VOC
Output Type : 0-10 V or 4-20 mA
automatic re-calibration

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320,00 €

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OVERVIEW
SPECIFICATIONS
AVAILABLE MODELS
Data sheet
Download

Type of Instrument	Multisensor Platform
The instrument measures:	Air Quality - VOC
The Sensor measures:	Air Quality
Output Signal:	0-10 V or 4-20 mA
Power Supply:	24 V AC/DC (±5%)
Sensor IP Rating	IP65

AO-KLT/A Data Sheet Download (510.71k)

The AO-KLT/A mixed gas sensor registers the air quality in the range of 0...100% with respect to the calibration gas and the ambient temperature and converts the measured values into a linear output signal of 0-10 V and 4-20 mA respectively.

As an option the air quality sensor has a potential-free changeover contact and a backlit display. The changeover contact can be defined for one of the two measured values. The display content can be rotated in 90° steps using a menu and the measured value, the switching threshold set, the state of the relay, the MIN/MAX measured values for the selected intervals (1 h / 6 h / 12 h / 24 h) etc. can be read out.
The sensitivity can be set on the device at “low” (extended measurement range), “medium” (standard measurement range) and “high” (reduced measurement range).

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.

Measurement range VOC	0...100% (good / bad air quality, referring to the calibration gas)
Measurement range temp.	0...+50°C
Accuracy	±15% FS
Response time (t90)	max. 60 s (at 5% alteration)
Long term stability	< 15% FS/year at norm load
Sensor	metal oxide VOC-sensor
Sensor protection	screwable stainless steel sinter filter
Running-in time	1 hour
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
Analogue output 0/4-20 mA	3-wire connection, load resistance < 500 Ohm
Alarm output	1 x potential-free change-over contact, 48 V, 1 A
Electrical connection	screw terminals max. 1,5 mm²
Housing	Polycarbonate PC UL 94 V0 with hinge locks, color signal white similar to RAL 9003
Cable gland	PG11 high-strength cable gland with strain relief
Display	optional LCD display with backlight on/off/auto
Material	Protection tube: metal
Dimensions	Housing: L 89 x W 80 x H 47 mm, Protection tube: Ø 16 x 190 mm
Weight	250 g
Protection type	IP65
Protection class	III
Working range r.H.	0...98% r.H. in contaminant-free, non-condensing air
Working temperature	0...+50°C
Storage temperature	-20...+50°C
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.
Automatic calibration	The automatic re-calibration of the output signal is started in the interval of 4 weeks and can be disabled. The device must be supply within this interval at least 10 minutes with fresh air.
Manual calibration	The manual calibration of the output signal to 1V (zero point) will be started by pushing the button on the circuit board (push ca. 5 s until LED is blinking). Before this it is to ensure a non-stop operating of min. 2 h on air quality which is defined as normal. After successful calibration the LED will be deactivated.
Installation	mounting flange (in scope of delivery)
Approvals	CE, EAC, RoHS

MODEL	PWR. SUPPLY	OUTPUT	VERSION
KLT/A-I	15...36 V DC	2 x 4-20 mA	without display

KLT/A-ID	15...36 V DC	2 x 4-20 mA	with display

KLT/A-IR	15...36 V DC	2 x 4-20 mA, changer	without display

KLT/A-IRD	15...36 V DC	2 x 4-20 mA, changer	with display

KLT/A-U	24 V AC/DC	2 x 0-10 V	without display

KLT/A-UD	24 V AC/DC	2 x 0-10 V	with display

KLT/A-UR	24 V AC/DC	2 x 0-10 V, changer	without display

KLT/A-URD	24 V AC/DC	2 x 0-10 V, changer	with display