VEGA VEGAMET 391 With SIL qualification - Manual (Page 46)

46
12 Supplement
VEGAMET 391 • With SIL qualification
38704-EN-130228
12 Supplement
12.1 Technical data
General data
Version
Instrument for mounting into front panel, switching cabi-
net or housing
Weight 620 g (1.367 lbs)
Housing materials Valox 357 XU
Connection terminals
Ʋ Type of terminal Pluggable spring-loaded terminal with coding
Ʋ Max. wire cross-section 2.5 mm² (AWG 14)
Voltage supply
Operating voltage
20 … 253 V AC, 50/60 Hz, 20 … 253 V DC
Max. power consumption 7 VA; 3 W
Sensor input
Number of sensors
1 x 4 … 20 mA
Input type
Ʋ Active input Sensor supply through VEGAMET 391 mit SIL-Qualifi-
kation
Measured value transmission
Ʋ 4 … 20 mA analogue for 4 … 20 mA sensors
Deviation
Ʋ Accuracy ±20 µA (0.1 % of 20 mA)
Terminal voltage 19 … 14.5 V at 4 … 20 mA
Current limitation approx. 26 mA
Detection line break ≤ 3.6 mA
Detection shortcircuit ≥ 21 mA
Adjustment range 4 … 20 mA sensor
Ʋ Empty adjustment 2.4 … 21.6 mA
Ʋ Full adjustment 2.4 … 21.6 mA
Ʋ min. adjustment delta 16 µA
Connection cable to the sensor two-wire screened standard cable
Digital input
Quantity
2 x digital input
Input type Passive
Switching threshold
Ʋ Low -3 …5 V DC
Ʋ High 11 …30 V DC
Max. input voltage 30 V DC
Max. input current 30 mA