WIKA WUD-20 Betriebsanleitung Seite 11

7. Initial start-up and operation
Specifications
Pressure ranges
Over pressure safety
1)
Burst pressure
1)
Pressure ranges
Over pressure safety
1)
Burst pressure
1)
Measuring principle
Materials
Wetted parts
■
- Pressure connection
- Pressure sensor
Case
■
- Lower body
- Plastic components
- Keyboard
- Display cap
Particle test
Inboard helium leak test
Surface finish
Dead volume
Permissible medium
1) 1 psi = 0.069 bar
Operating instructions/Betriebsanleitung, WUD-2x
Downloaded from www.Manualslib.com
Models WUD-20, WUD-25 and WUD-26
psi 14.5 25
bar 1 1.7
psi 120 120
psi 1,800 1,800
psi
bar
psi
psi
Other pressure ranges, pressure units (e.g. MPa, kg/cm
Absolute pressure: 0...2 bar to 0...60 bar, Vacuum pressure: -1...1 bar to -1...250 bar
Metal thin-film sensor
316L VIM/VAR
2.4711 / UNSR 30003
304 SS
PBT
TPE
PC
≤ 0.1 µm Particle 0.1 ptc / ft
< 1 x 10 mbar l/sec (atm STD cc/sec) according to Semi F1
-9
Electropolished, typical Ra ≤ 0.13 µm (RA 5); max. Ra ≤ 0.18 µm (RA 7) according to Semi F19
WUD-20 < 1.5 cm 3 , WUD-25 < 1 cm
Special gas, vapour, liquid
manuals search engine
WUD-20, WUD-25
WUD-26
60 100 160
4 7 11
120 210 320
1,800 2,200 2,600
) on request
2
according to Semi E49.8
3
3 , WUD-26 < 1 cm 3
250 350 500
17 25 36
500 750 1,100
4,800 6,200 5,800
2,000 3,000
145 225
4,200 6,600
10,500 10,500
GB
1,000 1,500
70 100
2,100 3,000
8,000 10,500
5,000
360
10,500
12,000
11