
Máy đo CO2 để bàn AZ7798, AZ7788, AZ7787
Các model:
- VZ7787AZ, 7787 meter
- VZ7788AZ, 7788 meter
- VZ7798AZ, 7798 meter
*Available for EB project
Desktop Carbon Dioxide Monitor
- w/ logging:7798
- w/ relay:7788
- w/o relay:7787
- Large LCD displays CO2 value (with good,normal,poor air quality indicator), year-month-date, hour-minute, air temp. & relative humidity
- 15 degree tilt to provide easy see and read angle
- Display real time clock and date
- NDIR (non-dispersive infrared) waveguide technology
- CO2 automatic background calibration(called ABC) for long time drift compensation
- 7798:Up to 15999 points auto logging memory space
- 7788:CO2 relay to control ventilation
Thông số kỹ thuật
| Thông số | Giá trị |
|---|---|
| Measuring range CO2 | 0~9999 ppm,(2001~9999 ppm out of scale range) |
| Temperature | -10~60 °C (14~140 °F) |
| Relative Humidity | 0.1%~99.9%RH |
| Resolution CO2 | 1ppm |
| Resolution Temperature | 0.1 °C/°F |
| Resolution Relative Humidity | 0.1%RH |
| Accuracy CO2 | ±50ppm+5% of reading( 0~2000ppm) Other range is 10% of reading |
| Accuracy Temperature | ±0.6 °C/±0.9 °F |
| Accuracy Relative Humidity | ±3%RH (at 25 °C, 10~90%RH) ±5%RH ( at 25 °C , others ) |
| Warm-up time | 30 seconds |
| Response time CO2 | <2 minutes ( 90% step change) |
| Response time Tair | <2 mins (90% step change) |
| Response time RH | <10 minutes ( 90% step change) |
| Sample point | 15999 points ( 5333points for each parameter) |
| Sampling rate | 1sec to 04 hour 59 mins 59 sec. |
| LCD size (mm, HxW) | 60×82 |
| RELAY(1A 30VDC/0.5A 125VAC) | YES |
| Operating condition | 0~50 °C , 5~80% RH (avoid condensation) |
| Storage condition | -20~ 50 °C,5~90%RH(avoid condensation) |
| Power supply | 5VDC adaptor (+10%), >=500mA |
| Meter size | 120 x 80 mm (Diameter x Depth) |
| Weight | 200g |
| Standard package | Meter, manual,5V universal adaptor, plain box, software CD & cable (7798 only) |



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