INFICON T-Guard Leak Detection Sensor - Manual (Page 76)

74
Errors and Warnings
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9 Errors and Warnings
Error No. Plain text message Possible reason Recommendation
E1 24 V of the MC50 is too low
Fuse F1 on the DC/DC board has
blown or power supply unit too
weak Replace the Fuse F1 on the DC/
DC board or use a controlled
power supply unit.
E2 24 V of sensor heating too low
Fuse F2 on the DC/DC board has
blown or power supply unit too
weak Replace the Fuse F2 on the DC/
DC board or use a controlled
power supply unit.
E3 24 V II too low
Fuse F3 on the DC/DC board has
blown or power supply unit too
weak Replace the Fuse F3 on the DC/
DC board or use a controlled
power supply unit.
W4 24 V at socket OPTION is too low
Fuse F4 on the DC/DC board has
blown or power supply unit too
weak Replace the Fuse F4 on the DC/
DC board or use a controlled
power supply unit.
E7 -15 V of the MC50 is too low DC/DC board defective
Call nearest INFICON service
representative
E8 15 V of the MC50 is too low DC/DC board defective
Call nearest INFICON service
representative
E9 High Voltage error Problem in sensor electronics
Call nearest INFICON service
representative
W11 Wise-current unstable
T-Guard™ Leak Detection Sensor
possibly not being used for
several days, sensor current
should stabilize after longer run-
time.
The helium background is higher
than 20 ppm.
Get the T-Guard™ run for 2
hours. Reduce the helium
background in the room.
E12 Wise Sensor not ignited
Current from Wise Technology
sensor too low for more than 10
min after power on.
(>5E-11 A). Restart the T-Guard™ Leak
Detection Sensor, if problem
persists, call nearest INFICON
service representative
E13 Problem in Heater Control
Heater control for Wise
Technology sensor defective.
Restart the T-Guard™ Leak
Detection Sensor, if problem
persists, call nearest INFICON
service representative
E14 Discharge gone out
Sensitivity problem of Wise
Technology sensor
or
No ambient helium present (e.g.
inlets purged with nitrogen)
Restart with inlets connected to
external air
If problem persists, call nearest
INFICON service representative
E19 No communication with Wise ADC
Wise Technology sensor defective
or
CPU-board defective
Call nearest INFICON service
representative!
E20
Temperature at electronic unit is too
high (>60°)
Ambient temperature too high
Cool down environment, place
the T-Guard™ Leak Detection
Sensor in cooler area.
E20
Temperature at electronic unit is too
high (>60°)
Ventilation failure
Check if fan is (check for air flow
through inlet of the housing)