YOKOGAWA ZR22G User Manual page 53

Needle valve
Ø43
Instrument air inlet
<1>
40
(Note1) The connecter of ejector assembly is a
dedicated connecter with nozzle function.
1)
Po (kPa)
200
P= 0.5
100
0
5 15
10
L (m)
Pressure setting characteristics
3)
Pg (kPa)
-1.0
-0.5
0
80
40 60
P (kPa)
Suction pressure characteristics
Pressure gauge assembly
Pressure gauge
Ejector
<3>
Tee
Blow Rc1/4
Needle
valve
Air
source
2)
Qa (l/min)
40
30
0
60 80
40
P (kPa)
Air consumption characteristics
4)
Qg (l/min)
8 Gas Pressure:
0 kPa
4
Gas pressure : -15 Pa
0
80
40 60
P (kPa)
Suction flow characteristics
<2. Specifications>
<2>
Nozzle (Note1)
Detector
R1/2
20
<1> Rc1/4 or 1/4 FNPT
<2> Ø6/Ø4 or 1/4 inch copper tube (stainless)
with ejector to connect
<3> R1/4 or 1/4 NPT
Pressure gauge
Po
Ejector
Qa
L Pg
Qg
Po (kPa) : Pressure setting
P (kPa) : Drive pressure (at the ejector entrance)
Pg (kPa) : Suction pressure
Qa (l/min) : Air consumption
Qg (l/min) : Suction flow
L (m) : Distance between the ejector and the pressure
gauge
Gas
F2-9E.ai
IM 11M12G01-02EN 1sh Edition : Mar. 25, 2021-00
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