Agilent Technologies FRG-700 User Manual page 18

Technical Information
Table 1 Technical Specifications (continued)
Specifications
Supply
The gauge may only be connected to power supplies, instruments or control devices
WARNING
that conform to the requirements of a grounded extra-low voltage (SELV). The
connection to the gauge has to be fused
Supply voltage at the gauge
Power consumption
Fuse 1)
The minimum voltage of the power supply must be increased proportionally to the length of the sensor cable.
Voltage at the supply unit
with maximum line length
Adjustment
<HV> potentiometer
<ATM> potentiometer
Electrical connection
Sensor cable
Line length
Operating voltage
Operating current
Grounding concept
Vacuum connection-signal
common
Supply common-signal
common
Materials exposed to vacuum
Vacuum connection
Measuring chamber
Feedthrough
Internal seals
FRG-700
FRG-702
Anode
Ignition aid
Pirani measuring tube
Pirani filament
1)
Agilent controller fulfill these requirements.
18 Agilent Inverted Magnetron Pirani Gauge FRG-700 and FRG-702 User Manual
≤
15.0 ... 30.0 VDC (ripple 1 V
≤
2 W
≤
1 AT
≤
16.0 ... 30.0 VDC (ripple 1 V
at <10 -4 mbar
at atmospheric pressure
FCC68 female, 8 poles
8 conductors plus shielding
≤
50 m (8x0.14 mm²)
≤
3.3 kV
≤
500 µA
see paragraoh Electrical Connection (page 28)
Ω
connected via 10 k (max. voltage differential
with respect to safety
with respect to accuracy
conducted separately
stainless steel
stainless steel
ceramic
FPM 75
Ag, Cu, soft solder (Sn, Ag)
Mo
stainless steel
Ni, Au
W
Value
1)
.
)
pp
)
pp
±50 V
±10 V)