AADCO 737 Series, Руководство по эксплуатации

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10
4.14
OUTPUT PRESSURE MULTIPLIER
60 2.24
55 2.16
50 2.08
45 2.00
40 1.91
35 1.82
30 1.73
25 1.63
20 1.53
15 1.415
10 1.29
5 1.155
4.15
The purpose of this exercise is to allow the operator to know his flow conditions
but, more importantly, TO AVOID EXCEEDING THE OUTPUT CAPACITY OF
THE PURE AIR GENERATOR AND JEOPARDIZING THE OUTPUT PURITY.
Each pure air generator has a maximum output rating and the operator should
know this before setting flows.
4.16
Any instrument that is sensitive to even slight variations in oxygen
concentration; i.e., flame ionization detectors used with total hydrocarbon
analyzers, gas chromatographs, flame photometric detectors, etc., all require
incorporation of mixer-receivers, Figure 7 (49), in the pure air generator system
for homogenization of the air mixture before use by the above-mentioned
detectors. NDIR, chemiluminescent, photoionization, and electrochemical
sensors are unaffected by slight variations in oxygen concentration and,
therefore, do not require mixer-receivers. See Section 18, Parts List, for
appropriate models.
4.17
SHUTDOWN PROCEDURE.
4.18
If the unit is not to be used for one week or more, depress the PUMP switch,
Figure 4 (1), depress the POWER switch, Figure 4 (2), and immediately cap
both the PURE AIR outlet, Figures 1 and 3 (59), and the DUMP fitting, Figures
1 and 3 (60), to avoid contaminants from entering the system.