TVOC Transmitter and indicator
FEATURES
Wall mounting, real time detect indoor air quality
With Japanese semiconductor mix gas sensor inside. 5~7 years lifetime.
High sensitive to contaminative gases and various kinds of odorous gases within the room (smoke, CO, alcohol, human odor, material odor).
Two types available: indicator and controller
Design six indicator lights to indicate six different IAQ ranges.
Temperature and humidity compensation makes the IAQ measurements consistent.
Modbus RS-485 communication interface, 15KV antistatic protection, independent address setting.
Optional one on/off output to control a ventilator/air cleaner. The user can select an IAQ measurement to turn-on the ventilator between four setpoints.
Optional one 0~10VDC or 4~20mA linear output.
TECHNICAL SPECIFICATIONS
|
Gas detected |
VOCs ( toluene emitted from wood finishing and construction products); Cigarette smoke( hydrogen, carbon monoxide);
ammonia and H2S, alcohol, natural gas and smell by people’s body. |
| Sensing element | Semiconductor mix gas sensor |
| Measuring range | 1~30ppm |
| Power Supply | 24VAC/VDC |
| Consumption | 2.5 W |
| Load (for the analog output) | >5K |
| Sensor query frequency | Every 1s |
| Warm up time | 48 hours (first time) 10 minutes(operation) |
|
Six indicator lights |
The first green indicator light：Best air quality
The first and the second green indicator lights：Better air quality The first yellow indicator light：Good air quality The first and the second yellow indicator lights：Poor air quality The first red indicator light：Poorer air quality The first and the second indicator lights：Poorest air quality |
| Modbus interface | RS485 with 19200bps(default),
15KV antistatic protection, independent base address |
| Analog output (Optional) | 0～10VDC linear output |
| Output resolution | 10Bit |
| Relay output (Optional) | One dry contact output, rated switching current 2A( resistance load) |
| Temperature range | 0～50℃ (32～122℉) |
| Humidity range | 0～95%RH，non condensing |
| Storage conditions | 0～50℃ (32～122℉) /5~90%RH |
| Weight | 190g |
| Dimensions | 100mm×80mm×28mm |
| Installation standard | 65mm×65mm or 2”×4”wire box |
| Wiring terminals | Maximum 7 terminals |
| Housing | PC/ABS Plastic fireproof material , IP30 protection class |
| CE approval | EMC 60730-1: 2000 +A1:2004 + A2:2008
Directive 2004/108/EC Electromagnetic Compatibility |
