VENTI-LIGHT VLD Ventilatie Indicator G e b r u i k e r s h a n d l e i d i n g mpèrestraat 35-37 NL-446 TR PURMEREND Postbus 783 NL-440 T PURMEREND T (+3) 099 630 60 F (+3) 099 630 6 E info@atal.nl
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Specifications Carbon Dioxide Sensor CO measuring range ccuracy@ ºC (7 ºF) Stability Non linearity@ ºC (7 ºF) Response time Duct ir Velocity Pressure Dependence Non-Dispersive Infrared Detector (NDIR) BC Logic Self Calibration lgorithm 0~,000ppm 0~5,000ppm ±40ppm +3% of reading <% of full scale over the life of the sensor <% of full scale <5 minutes for 90% step change at low duct speed 0~450m/min 0.35% of reading per mm Hg Temperature Dependence 0.% of full scale per ºC Warm up time General Date Power supply Consumption LCD display LCD Backlight nalog output Operation conditions Storage conditions Net weight Standard pproval IP class Version 4 hours (first time) 0 minutes (operation) 4VC (50/60HZ±0%), 4VDC.8 W max. ;. W avg. 3-color backlit Display CO measurement or CO + temperature& humidity measurements Green optimal air quality (<000) Enjoy the indoor air Yellow moderate air quality (00~400) Ventilation can be used Red -poor air quality (>400) Immediate ventilation x 0~0VDC (default) or 4~0m output for CO + Temperature +RH (The voltage output or current output can be selectable by jumpers) 0S~50 C (3~ F); 0~95%RH, non condensing -0~70 C (-40~58 F) 40g CE IP54 T-VLD-03(N)D- 3
Mounting and Wire Connection Notice the supply power voltage of the transmitter: 4VC. Do not install the transmitter on voltages higher than marked on the transmitter. Firstly, prepare a flower head screwdriver and open the screw of the transmitter housing. (see fig.) Open the underside bigger notch for pass through connecting wires (see fig.) Connect wires to terminal strips (see fig.3). Make sure wiring connection correct and secure. Enter the probe of the transmitter into the air duct. Please attention the direction of the filter and the air flow are opposite. (see fig.4). The cover of the filter can be moved. It can be replaced when it is too dirty. (see fig.5). Place the transmitter against at desired location and fixed;. Finally tighten the screw of the transmitter housing to close the cover. Fig. Fig. Fig.3 Fig.4 ai r duct B 5 4 3 H T CO G0 G+ N3 ( 0-0VDC/ 4-0m) N ( 0-0VDC/ 4-0m) N ( 0-0VDC/ 4-0m) Li ne Vol t age 4VC Transformer B RS- 485 ai r f l ow Connection Terminal Function Electrical Data G+ Power (+) 4VC/4VDC + G0 Power ground (-) 4VC/4VDC 3 OUT3 CO nalog output (+) 0~0VDC(default) =0~000ppm 0~0VDC(default) =0~5000ppm 4 - Not functional - 5 - Not functional - 6 - Not functional 7-4
Fig.5 B RS485 B 4VC/ VDC N3 H 0-0VDC/ 4-0m N T 0-0VDC/ 4-0m N CO G 0-0VDC/ 4-0m TG936 5 T-VLD-03(N)D-3- + G 4Vac/ Vdc + 4 3 nalog output selection If you want to change the analog output, please follow the below steps: power off and remove the back cover, you can see a group of jumper S~S6 in the middle right of the circuit board. Connect the up two pins of the S-S6, the analog output is voltage output; connect the down two pins of S-S6, the analog output is current output. There is another group of jumper J-J3 in the upper left of the circuit board. When the J is connected the analog output is -0VDC or 4-0m output, when the J is disconnected, the analog output is 0-0VDC or 0-0m output. The J, J3 is just for testing before leaving factory, the default is disconnection. Don not change them! Important Instructions:. Don t shake or hit the transmitter too much in shipment or in mounting to protect the internal infrared CO sensor from any damage and excursion of infrared receiver.. When open the cover of the transmitter, you'll see one small PCB board which is CO module mounted on a bigger PCB board. Don t move the CO module in order not to cause any damage to the CO sensor. 3. When a. First use CO transmitter, or b. Reuse CO transmitter after a long time unused or c. CO measurement is proved to be incorrect (by comparing with the measurement of other accurate CO products, or put the transmitter outdoors and its measurement is away from the range of 350ppm~450ppm, which is the normal ambient CO level range.) Then let BC Logic TM Self Calibration System work as follows: Keep the CO transmitter energized for at least days to let CO sensor s BC Logic TM self-calibration system operate properly. fter more than days calibration, if the measurement (indicated by the analog output) of the CO transmitter still exceeds over the accuracy, you need to let it self-calibrated for a longer time. Here s the typical 4-day calibration solution: During a 4-day period, place the CO transmitter twice in outdoors or unoccupied places where CO level is 5
around 400ppm. Each time let it be there for more than 4 hours and then check the CO measurement via the analog output. If the CO measurement is in its accuracy limit, it indicates the measurement is right. Notice: a. 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 calibration. b. When checking the analog output, please avoid breath out directly to the CO transmitter. It s better to connect the output terminals with the Extending Wires with length of more than meter. When the CO transmitter becomes stable after more than 0 minutes turning-on, check the analog output through the extending wires. 6