Vega POINTRAC 31 Operating Instructions Manual page 51

Turn-on voltage
Min.
-
Max.
-
Switching current
Min.
-
Max.
-
Breaking capacity
Min.
-
Max.
-
Contact material (relay contacts)
Transistor output
Output
Load current
Voltage loss
Turn-on voltage
Blocking current
Accuracy (similar to DIN EN 60770-1)
Process reference conditions according to DIN EN 61298-1
Temperature
-
Relative humidity
-
Air pressure
-
Reproducibility
Deviation with bulk solids
Deviation under EMC influence
Ambient conditions
Ambient, 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
POINTRAC 31 • 8/16 mA/HART - four-wire
10 mV
253 V AC, 253 V DC
10 µA
3 A AC, 1 A DC
50 mW
750 VA AC, 40 W DC
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 AgSnO and Au plated
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 are considerably application-depend-
ent. Firm specifications are hence not possible.
≤ 1 %
-40 ... +60 °C (-40 ... +140 °F)
Unpressurized
11 Supplement
51