1) GRI-1800-TVOC online gas detector Core processor uses advanced ARM Cortex M3 (32-bit), which
make the processing performance more stable and efficient;
2) Wide, large LCD display clarity (dot matrix LCD), tri-color backlit prompt different states;
3) Four function keys, sensitive, fast (confirmed, return, up and down, left and right);
4) adopted Electro-chemical sensors, ADC uses 24 high-precision chip;
5) pump-priming Sampling way,and control and display flow rate by rotameter; (optional, with no
positive pressure pump, vacuum with pump)
6) MCU memory to store max 500 historical data;
7) the Communication way to connected to the host computer is RS485;
8) Audible alarm so you can not ignore the prompt;
9) Compatible with conventional control output: 4 ~ 20mA current one-way, two-way relay, sound and
light alarm output;
10)Compatible software and hardware calibration.
Application
indoor air quality monitoring(TVOC)
TWA and STEL monitoring
Air pollution monitoring
Environmental Cleanliness detection
confined space admittance monitoring
resolver/menstruum monitoring
Petroleum refining safety and health inspection
Industrial spray paint monitoring
grain/wood/tobacco fumigation
Power input: 12VDC
screem: LCD dot matrix, tricolor backlight
sensor type: optical
gas type : TVOC
sampling way: pump type
gas range : optional
precision: ≤±5%FS
resolution : optional
repeatability: ≤±2%FS
zero drift : ≤±2%FS/6h
span drift : ≤±5%FS/6h
response time: T90≤30
output signal: RS485 digital signal ( connect with the industrial host have the GRI software to PC)
control output: Two level alarm relay
contact capacity: 0VDC/1A
Key: four function key, operate sensitive, fast ( OK, return, up and down, left and right key)
indicate: 3 ( power- green, alarm--red, fault: yellow)
interface: 84*45mm
housing dimension: 190*120*200mm
operate temperature: -20 to 70 centigrade
operate humidity: 20 to 950%RH ( no condensing)
sensor life: sensor( 1 to 2 year), Instrument ( 10 years)
communication protocol: FAD2.3
