VEGA VEGAMET 407 Z - Manual (Page 14)

14 VEGAMET 407 Z
Alarm information
E1 E2
1
2
+
-
VEGAMET 407 Z
V mA 4 … 20 12 … 24
2
1
2
1
Sensors Measuring line
Capacitive Pressure
measuring transmitter
electrode
Fault diagnosis related to E1 or E2
Signal conditioning
instrument
Short-circuit
current > 22 mA
Check all connections
and measuring lines
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Short-
circuit
removed
?
Short-
circuit
removed
?
Short-
circuit
removed
?
Sensor defect
Short-circuit in the
connection cable
Separate sensor from
connection cable
Separate signal conditionining
instrument from connection cable
Line break
current < 2 mA
Check supply voltage
and measuring line
Signal conditioning
instrument defect
approx.
24 V
?
Alarm
E1 dis-
played?
Alarm
E1 is
displayed
?
Auswertgerät defekt
Fault or break on the
sensor (capacitive
measuring electrode or
pressure transmitter)
Cable break
Short-circuit the signal conditioning
instrument terminals
Remove short-circuit of the terminals on the
signal conditioning instrument, then short-
circuit terminal 1 and 2 on the sensor
Signal conditioning
instrument defect
E1 extinguishes
Signal conditioning
instrument defect