Air Quality Transducer for CO for surface mounting, with display, with changeover contact, 0-10 V or 4-20 mA

0-200/500/1000 ppm
0-10 V, 4-20 mA, changer
optional LCD-Display
hinge lock technology

The air quality sensor CO-A/A registers the CO concentration in the air in the environment in the range of 0-1000 ppm via an electro-chemical sensor and converts this measured value into a linear output signal 0-10 V respectively. 4-20 mA.As an option the air quality sensor has a potential-free changeover contact and a backlit display. 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.3 different measuring ranges can be selected 0-200 ppm, 0-500 ppm, 0-1000 ppm which can be switched, according to requirements, by the innovative DIP switching technology.

Measurement range CO:	0-1000 ppm
Scales:	0-200/500/1000 ppm
Accuracy:	±5 ppm + max. ±5% f. mv (at 20°C, 50% r.H.)
Temperature dependency:	CO: ±2 ppm / K
Long term stability:	±1% FS/year
Sensor:	Electrochemical sensor
Response time (t90):	< 5 min
Sensor protection:	sinter filter
Supply voltage:	24 V AC/DC (±5%)
Current consumption:	max. 100 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:	2% FS (without Display), 0,5…5% FS adjustable (with Display)
Electrical connection:	screw terminals max. 1,5 mm²
Display:	optional LCD display with backlight on/off/auto
Running-in time:	1 min
Initial operation:	After switch-on of the device it runs a self-test and the zero-point calibration. This process takes, depending on ambient conditions, about 1 minutes. Within this time, the linear output signal deviates from the actual measured value.
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:	Housing/electronic: IP65, Sensor: IP30
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
Installation:	screw fastening
Approvals:	CE, EAC, RoHS

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