Duct Air Quality VOC Transmitter VOCD-series


VOC = Volatile Organic Compounds


Duct Air Quality (VOC) transmitter VOCD 51 MDR2B


Duct Air Quality (VOC) transmitter VOCD 51


Description
Duct Air Quality (VOC) transmitter VOCD-series

The Duct Air Quality (VOC) transmitter VOCD-series have
MEMS type MOX sensing element

Output(s) for Duct Air Quality (VOC) transmitter VOCD-series are
0-10 Vdc, 2-10 Vdc, 4-20 ma, 0-5 Vdc or 1-5 Vdc
(One output and Two VOC outputs available).

Estimated operating life for
Duct Air Quality (VOC) transmitter VOCD-series is minimum 5 years.

Accuracy for Duct Air Quality (VOC) transmitter VOCD-series is +/-10% FSO.

Power supply for Duct Air Quality (VOC) transmitter VOCD-series is 24 Vac/dc.


"Options"

  • Modbus RS485
  • LCD Display
  • 1 x relay output , can be set individually
  • 2 x relay outputs , can be set individually
  • Buzzer

VOC Ranges/Sensitivity

0V or 4mA:  BEST, Clean Air
1V or 5.6mA:  STANDARD, calibrated level, reference level
10V or 20mA:  WORST, polluted air

In normal conditions, base level is equals to 1V.

Lower than 1V is better than calibrated situation.
In some cases, indoor condition may be better than calibrated level.

Higher than 1V is showing polluted air level.
Pollution is measured from 1V to 10V.

Sensitivity for VOC.
Higher response for VOC gasses at HIGH sensitivity.
10V of HIGH is equal to 4V of LOW.
10V of MEDIUM is equal to 6V of LOW.
1V is same for all sensitivities. 
Example:  3.0V @ LOW  ==  4.6V @ MEDIUM  ==  7.0V @ HIGH


Detectable gases

• Cigarette smoke
• Automobile exhaust
• Breath air
• Carbon monoxide (CO)
• Solvent fumes • Alcohol fumes
• Acetone
• Acrylonitrile
• Ammonia
• Benzene
• Chlorine
• Dimethyl amine
• Ethane
• Ethanol
• Ethylene
• Ethylene oxide
• Formaldehyde
• Hydrogen
• Hydrogen sulfide
• Isobutane
• Methane
• Methanol
• n-Hexane 2
• n-Petane
• Propane
• Sulfur dioxide


Ordering examples

VOCD 51
Duct Air Quality (VOC) transmitter
VOC output 1: 4-20 mA
VOC output 2: 0-10 Vdc

VOCD 51 M
Duct Air Quality (VOC) transmitter
VOC output 1: 4-20 mA
VOC output 2: 0-10 Vdc
Modbus RS485 communication

VOCD 51 MDR2B
Duct Air Quality (VOC) transmitter
VOC output 1: 4-20 mA
VOC output 2: 0-10 Vdc
Modbus RS485 communication, LCD Display, 2 x relay outputs and Buzzer.

See data sheet for wide range of different combinations.


Download datasheet

Data Sheet
Duct Air Quality (VOC) transmitter VOCD-series.pdf


Download CE declaration of conformity

CE declaration of conformity
Duct Air Quality (VOC) transmitter VOCD-series.pdf


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