PURE AIR MONITOR is device to monitor purity of high pressure high purity gas intended to use for Weapons Systems and Detector cooling Applications.
The requirement on high purity is based on the fact that the gas is used for detector cooling by Joule Thomson coolers which are very sensitive to impurities especially like the moisture and CO2. Therefore some standards were established which govern this field like:
The JT coolers need high purity gas because the impurities in gas froze on the nozzle and thus reduce the gas flow and consequently the cooling power. The excessive level of impurities is detected by this monitor. The monitor detects the gas flow change and due to calibration it can show if the gas still can be used for Detector cooling application or not.
The measurement is taken at 206,8bar (3000psi) constant pressure. The gas flow needed for the measurement is between 11,6 and 14,2 Nl/min ( or 12,7 and 15,6 sl/min).
Typical measurement is taken over 3h period.
The PAM can be connected to high-pressure system with pressures up to 414bar (6000psi), which should be regulated to working pressure of 207bar. The working pressure for monitoring is 207 bar (3000psi).
Quality is shown on LED display (see G), via red yellow or green light showing the quality of gas.
Electric Power supply 12 VDC
Maximal air flow, at 3000 psig (206,84 bar) and ambient temperature of20°C: 14,2±1,5Nl/min
L x W x H = 57 x 66 x 230 mm
Weight: 930 gr.
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