Initial start-up and operation gb, Operating instructions/betriebsanleitung, wud-2x – WIKA WUD-26 Benutzerhandbuch
Seite 11
11611057.01 GB/D 11/2013
11
Operating instructions/Betriebsanleitung, WUD-2x
Specifications
Models WUD-20, WUD-25 and WUD-26
WUD-20, WUD-25
WUD-26
Pressure ranges
psi
15
30
60
100
160
250
350
500
1,000
1,500
bar
1
2
4
7
11
17
25
36
70
100
Over pressure safety
1)
psi
120
120
120
210
320
500
750
1,100
2,100
3,000
Burst pressure
1)
psi
1,800
1,800
1,800
2,200
2,600
4,800
6,200
7,400
8,000
10,500
Pressure ranges
psi
2,000
3,000
5,000
bar
145
225
360
Over pressure safety
1)
psi
4,200
6,600
10,000
Burst pressure
1)
psi
10,500 10,500 10,500
Other pressure ranges, pressure units (e.g. MPa, kg/cm
2
) on request
Absolute pressure: 0...2 bar to 0...60 bar, Vacuum pressure: -1...1 bar to -1...250 bar
Measuring principle
Metal thin-film sensor
Materials
■
Wetted parts
- Pressure connection
316L VIM/VAR
- Pressure sensor
2.4711 / UNSR 30003
■
Case
- Lower body
304 SS
- Plastic components
PBT
- Keyboard
TPE
- Display cap
PC
Particle test
≤ 0.1 µm Particle 0.1 ptc / ft
3
according to Semi E49.8
Inboard helium leak test
< 1 x 10
-9
mbar l/sec (atm STD cc/sec) according to Semi F1
Surface finish
Electropolished, typical Ra ≤ 0.13 µm (RA 5); max. Ra ≤ 0.18 µm (RA 7) according to Semi F19
Dead volume
WUD-20 < 1.5 cm
3
, WUD-25 < 1 cm
3
, WUD-26 < 1 cm
3
Permissible medium
Special gas, vapour, liquid
1) 1 psi = 0.069 bar
7. Initial start-up and operation
GB