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20901059_EN_VACUU·SELECT_V1.3_280119
Appendix
9.1.3 VACUU·SELECT
®
Sensor (optional)
Wetted materials
Component
Wetted materials
Sensor
Aluminum oxide ceramic,
gold‑coated (if applicable)
Measurement chamber
PPS
Small flange
PP
Sealing ring at the sensor
Chemically resistant
fluoroelastomer
O‑ring inside small flange
FKM
Hose nozzle
PP
Venting valve seal
FFKM
Optional: blind plugs without
venting valve
Epoxy resin
Vacuum data
Values
(US)
Measuring range
(absolute)
1060–0.1 mbar
795–0.1 Torr
Accuracy of measure
‑
ment
±1 mbar/hPa/Torr, ±1 digit, with
VACUU·SELECT
®
vacuum controller (after
adjustment, constant temperature)
Measuring principle
Ceramic diaphragm (aluminum oxide, gold‑
coated), capacitive, gas type independent,
absolute pressure
Temperature coefficient
< ±0.15 mbar (hPa)/K
< ±0.11 Torr/K
Maximum admissible
pressure, abs.
1.5 bar
1125 Torr
Maximum admissible media temperature (gas), non‑explosive atmo‑
sphere:
Short term (< 5 min)
80 °C
176 °F
Continuous operation
45 °C
113 °F
ATEX conformity
II 3/‑ G IIC T4 X Internal Atm. only
Maximum admissible media temperature (gas)
`
atmosphere:
Short term
40 °C
104 °F
Continuous operation
40 °C
104 °F
Vacuum data
Wetted materials
