Edwards Barocel 7025M, Instruction Manual

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Page 10
W601100880_A - Technical data
Electrical connection FCC68/RJ45, 8 pin socket or D-Sub, 9-pin,
male
Sensor cable 8-pin or 9-pin plus shielding
Cable length
§
 100 m (0.14 mm² conductor)
For longer cables, larger conductor cross-sections are required.
Grounding concept
Vacuum flange - signal common See Electrical connection on page 15
Supply common - signal common Conducted separately; for differential
measurement (10

)
*
The gauge is protected against reverse polarity of the supply voltage.
§
For longer cables, larger conductor cross sections are required.
Table 5 Materials exposed to vacuum
Materials exposed to vacuum
Flange, tube Stainless steel AISI 316L
Sensor, feedthrough Ceramics (Al
2
O
3
 99.5%)
Internal volume
DN 16 ISO-KF  3.7 cm
3
8 VCR female

5.1 cm
3
Admissible pressure (absolute)
 00 Torr/mbar (F.S.) 4 bar
100 Torr/mbar (F.S.) 3 bar
10 Torr/mbar (F.S.) 2 bar
Bursting pressure (absolute) 6 bar
Table 6 Environmental
Temperature compensated range +10 °C to +50 °C
Admissible temperatures
Storage -20 °C to +85 °C
Operation 0 °C to +70 °C
Bakeout (not in operation)

110 °C at the flange
Relative humidity  80% at temperatures
 +31 °C decreasing to 50% at +40 °C
Use Indoors only, altitude up to 4000 metres NN
Degree of protection IP 40
Table 4
Electrical (continued)