User Manual
Contents
1. If the CO2 measurement is in its accuracy limit it indicates the measurement right Notice Use of cellular telephones or radio transceivers with two feet of the sensor during calibration process could cause sensor interference calibration errors and affect sensor accuracy Please refrain from using these devices during sensor calibration2. CO2 Transmitter Controller AWA Model AT VLB 02 PID NL M1 Mihi User Manual www atal nl Specifications Power supply 24VAC 50 60HZ 10 24VDC Carbon Dioxide Non Dispersive Infrared Detector NDIR ABC Logic Self Calibration default effective CO measuring range 0 2 000ppm Accuracy 25 C 77 F 2000ppm 40ppm 3 reading Gas sensor Stability lt 2 of FS over life of sensor Non linearity lt 1 of FS Response time lt 2 minutes for 90 step change ing lt 5minutes operational 0 10VDC default other voltage output type selectable by jumper J1 1x analog output Linear or PID output type selectable by jumper J3 See Analog Output Type Selection for details 10 70 C 40 158 F 0 95 RH non condensing 0 50 C 32 122 F 0 95 RH non condensing 110g 102mm Xx 90mm X 40mm 65mm Xx 65mm 2 X 4 wire box or hang on a nail V E072 Notice the supply power voltage of the monitor 24VAC Do not install the monitor on voltages Mounting and Wire Connection higher than marked on the monitor Follows the step 1to step 4 in figure1 to remove the cover Please note use your nails or other unship tools to depress the both clips which are on the sides of the monitor Mount the monitor on the place CY Transeritier a where you want to detect CO2 level Do not mount it near diffuser or any steam source in direct sunlight Mount the wall plate first there are two dimensions availabl
3. e see figure 2 Place the monitor against the wall at desired location make sure wires can be passed through the holes on the wall plate Connect wires to terminal strips see figure 3 Make sure wiring connection correct and secure Follows the step 5 to step 7 in figure 4 to close the cover Figure 2 wall plate Figure 1 Open it i A SUA EST err r N i 60 00 _____ Figure 3 wiring diagram Figure 4 close it C02 Common Line R Voltage Transformer 24VAC Transformer MJ CHU HHH HHH Output and jumper selection te Power p o Power grou
4. nd 3 OUT F nalog output selectable 0 10VDC 0 2 000ppm CO2 default Analog Output Type Selection Power off and open the front cover You may see a group of jumpers at the bottom right of the PCB board First set jumper S2 and S3 to be voltage output state both with the 2 and 3 pin connected Then select voltage output type via jumper J1 disconnection 0 10VDC default Then select voltage output type between linear output and PID output via jumper J3 connection Linear output disconnection PID output default Use jumper J4 amp J5 to select CO2 set point for PID output disconnection disconnection 600ppm connection disconnection __ 800ppm disconnection connection f1000ppm default connection onnection 200pm Important Instructions 1 Don t shake or hit the monitor too much in shipment or in mounting to protect the internal infrared CO2 sensor from any damage and excursion of infrared receiver 2 When First use CO2 monitor or Reuse CO2 monitor after a long time in stock Keep the CO2 monitor energized continuously for at least 2 days to let CO2 sensor s ABC Logic self calibration system operate properly If it s measurement is still incorrect then let its ABC Logic Self Calibration System work as follows During a 14 day period lace the CO2 monitor twice in outdoors or unoccupied places where CO2 level is around 400ppm Each time let it being there for more than 4 hours
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