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E-mail
service@greensgrace.com
- Phone
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Address
3rd Floor, Building 9, Jiuxiangling Industrial Zone, Xinwei Community, Xili Street, Nanshan District, Shenzhen
Shenzhen Green En Environmental Protection Technology Co., Ltd
service@greensgrace.com
3rd Floor, Building 9, Jiuxiangling Industrial Zone, Xinwei Community, Xili Street, Nanshan District, Shenzhen
indicator |
Technical Requirements |
methodological basis |
JJF 1172 - 2007 |
Measurement range and resolution |
(0-50)ppmEquivalent amount of isobutene (resolution 0.005ppm), or (0-1000) ppm equivalent amount of isobutene (resolution 0.1ppm) can be selected in the same range |
calibration |
Zero point and standard gas two-point on-site calibration |
indication error |
≤±3%F.S |
zero drift |
≤2%F.S |
Span Drift |
≤2%F.S |
repetitiveness |
≤2% |
detection limit |
≤1ppb |
power supply |
DC (18-36) V (typical value is 24V) |
output |
RS485Communication, supporting (4-20) mA output |
display |
128*64LCD display, 4-color alarm indicator light |
sampling method |
Built in suction pump for pumping and sampling |
response time(T90) |
<> |
operating interface |
Both buttons and infrared remote control with operation interface can be used for operation |
service life |
≥ 2 years (based on 24-hour continuous monitoring) |
insulation resistance |
≥20MΩ |
insulation strength |
≥ 1500V, 1-minute test |