Description
Features
- GRI-1800-TVOC online gas detector
- Advanced ARM Cortex M3 (32 bit) processor
- Stable and efficient processing performance
- Wide LCD display with tri-colour backlight
- Four sensitive and fast function keys
- Electro-chemical sensors with high-precision ADC
- Pump-priming sampling method
- Flow rate control and display via Rota meter
- Memory stores up to 500 historical data points
- RS485 communication for host computer connection
- Audible alarm for prompt notification
- Compatible with conventional control outputs
- Outputs include 4 mA to 20 mA current and relay
- Sound and light alarm outputs
- Supports software and hardware calibration
Technical Specifications
Power input | 12 V DC |
Scream | LCD dot matrix, tricolour backlight |
Sensor type | Optical |
Gas type | TVOC |
Sampling way | Pump type |
Gas range | Optional |
Precision gas range | ≤ ± 5 % FS |
Resolution | Optional |
Repeatability | ≤ ± 2 % FS |
Zero drift | ≤ ± 2 % F S or 6 h |
Span drift | ≤ ± 5 % F S or 6 h |
Response time | T 90 ≤ 30 |
Output signal | PC |
Control output | Two level alarm relay |
Contact capacity | 0 V DC or 1 A |
Key | four function keys, operate sensitive, fast (OK, return, up and down, left and right key) |
Indicate | 3 (power- green, alarm–red, fault: yellow) |
Operate humidity | 20 % RH to 95 % RH (no condensing) |
Sensor life | sensor (1 to 2 year), Instrument (10 years) |
Communication Protocol | FAD 2.3 |
Interface | 3.3 in x 1.8 in (84 mm x 45 mm) |
Housing Dimension | 7.5 in x 4.7 in x 7.9 in (190 mm x 120 mm x 200 mm) |