INFICON Gemini ATM to Ultra-High Vacuum Gauge - Manual (Page 11)

tina83e1-a (2014-02) 11
Gauge identification
3MAx-xxx-0x0N
3MAx-xxx-0x0Q
3MBx-xxx-0x0P
–
100 k
Ω referenced to supply
common
85 k
Ω referenced to supply
common
Status signal (digital output)
Current rating 100 mA
High voltage is ON +14.5 … +30 V (dc)
(depending on supply voltage)
High voltage is OFF 0 V (dc)
High voltage cut-in, low active, Pin 7 (digital input)
High voltage ON
High voltage OFF <2.5 V (dc)
>4.0 V (dc)
High voltage cut-in, high active, Pin 8 (digital input)
High voltage ON
High voltage OFF >11.0 V (dc)
< 5.0 V (dc)
Supply
DANGER
The gauge may only be connected to power sup-
plies, instruments, or control devices that conform
to the requirements of a grounded protective extra-
low voltage (SELV) and limited power source
(LPS), Class 2. The connection to the gauge has to
be fused.
1)
Supply voltage
at the gauge 2)
+14.5 … +30 V (dc)
Ripple ≤1 V
pp
Power consumption ≤2 W
1) INFICON controllers fulfill this requirement.
2)
The minimum voltage of the power supply unit must be increased
proportionally to the length of the sensor cable.