INFICON SKY CDG025D 0.1 ... 1000 Torr / mbar - Manual (Page 11)

tina49e1-c (2009-06) 11
Current consumption <500 mA
(max. starting current)
Power consumption
(depending on supply voltage)
≤1 W
Fuse required 2) 1 AT (slow), automatic reset
(Polyfuse)
The gauge is protected against reverse polarity of the supply
voltage.
Electrical connection 15 poles D-Sub, male
Sensor cable
without switching functions
with switching functions
5 poles plus shielding
9 poles plus shielding
Cable length ≤100 m (0.14 mm² conductor)
For longer cables, larger conductor cross-sections are required
(R
cable
≤ 1.0 Ω).
Grounding concept
Vacuum flange - signal common → "Electrical Connection"
Supply common - signal common conducted separately; for dif-
ferential measurement (10 Ω)
Materials exposed to vacuum
Flange, tube
Sensor and diaphragm
Sensor–diaphragm connection
Ceramics–metal connection stainless steel AISI 316L
ceramics (Al
2
O
3
≥99.5%)
glass ceramics solder
AgTiCu hard solder, Vacon 70
(28% Ni, 23% Co, 49% Fe)
Internal volume ≤3.6 cm 3
Admissible pressure (absolute)
≥200 Torr/mbar (F.S.)
1 … 100 Torr/mbar (F.S.)
0.1 / 0.25 Torr/mbar (F.S.)
3 bar
2 bar
1.3 bar
Bursting pressure (absolute) 5 bar