Vega POINTRAC 31 Operating Instructions Manual page 50

Radiometric sensor for level detection
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11 Supplement
Switching voltage
Switching current
Switching current
Ʋ Standard
Ʋ USA, Canada
Breaking capacity
Ʋ Min.
Ʋ Max.
Contact material (relay contacts)
Transistor output
Output
Load current
Voltage loss
Switching voltage
Blocking current
Measurement accuracy (according to DIN EN 60770-1)
Process reference conditions according to DIN EN 61298-1
Ʋ Temperature
Ʋ Relative humidity
Ʋ Air pressure
Non-repeatability
Deviation with bulk solids
Deviation under EMC influence
Ambient conditions
Storage and transport temperature
Process conditions
For the process conditions, please also note the specifications on the type label. The lower value
always applies.
Process pressure
Process temperature (measured on the
detector tube)
50
max. 253 V AC/DC
With circuits > 150 V AC/DC, the relay contacts must be
in the same circuit.
max. 3 A AC (cos phi > 0.9), 1 A DC
max. 3 A AC (cos phi > 0.9), 1 A DC
max. 3 A AC (cos phi > 0.9)
50 mW
Standard: 750 VA AC, 40 W DC (at U < 40 V DC)
USA, Canada: 750 VA AC
If inductive loads or stronger currents are switched
through, the gold plating on the relay contact surface will
be permanently damaged. The contact is then no longer
suitable for switching low-level signal circuits.
AgNi or AgSnO2 each with 3 µm gold plating
Floating transistor output, permanently shortcircuit-proof
< 400 mA
< 1 V
< 55 V DC
< 10 µA
+18 ... +30 °C (+64 ... +86 °F)
45 ... 75 %
860 ... 1060 mbar/86 ... 106 kPa (12.5 ... 15.4 psig)
≤ 0.5 %
The values depend to a great extent on the application.
Binding specifications are thus not possible.
≤ 1 %
-40 ... +60 °C (-40 ... +140 °F)
Unpressurized
-40 ... +60 °C (-40 ... +140 °F)
With temperatures of more than 60 °C we recommend
the use of water cooling
POINTRAC 31 • Foundation Fieldbus

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