在高于海平面的压力下(如25 – 100 psi)对气体进行采样，对于粒子计数器来说是一个挑战。将压缩空气或气体连接到粒子计数器上，可能会破坏流量计系统，并可能损坏仪表。
高压扩散器(HPDs)的开发着眼于解决压缩气体中的粒子计数问题。HPDs通过将部分空气/气体向系统外扩散，将气体压力降至标准大气压，这样Lasair III颗粒计数器的流量计量系统即可正常工作。
请点击高压气体页面查看更多相关信息。
特点
- No moving parts to wear
- Connects vis male 4-VCR fitting
- Exhaust filer prevents possible room contamination
- Mounting clamps supplied
- Stainless steel construction
优点
- Measures gases from 25 to 100 psi (60 to 100 psi for 100LPM)
- No external flow meters needed
- Low contamination, < 5% of ISO Class I or II cleanliness
- Economical monitoring of pressurized gases with atmospheric pressure particle counters
- Can be used with Clean Dry Air, Argton, Nitrogen, or other non-toxic inert gases
- Four different versions for 0.1 CFM, 1.0 CFM, 50 LPM, and 100 LPM flow rates
