Troubleshooting - Error Messages - Instrutech Hornet User Manual

Instruction Manual
9.3

Troubleshooting - Error Messages

Indication
OVERPRESSURE
ION CUR FAIL
EMIS FAIL
LV Failure
LV OVR PWR
F1 or F2 OPEN
F1 or F2 OPEN
Note:
Once the cause of the IG error has been determined and resolved the IG error must be cleared before the IG
filament can be turned on again. The method by which the error is cleared is dependent on the IG CNTL
submenu of the SETUP UNIT menu selected. The IG error can be cleared by one of the following three methods:
1) If Input control menu (IG CNTL) is set to DIGI (digital Input), then remove ground connection (PIN 2) from PIN
1 of the analog connector. Next, apply ground to Pin 1, i.e., reconnect pin 1 to pin 2 of the ANALOG connector
to turn the IG filament on.
2) If Input control menu (IG CNTL) is set to RS485, then send an off command to clear the error. Next, send an
on command to turn the IG filament on.
3) If Input control menu (IG CNTL) is set to FRONT PANEL, first access the CLR IG ERROR submenu of SETUP UNIT
menu. Press Enter to clear the error and exit. Next, turn on the IG filament in the FP OPERATE submenu of the
SETUP UNIT menu.
InstruTech, Inc.
Possible Cause
The calculated pressure is greater than
maximum setting for emission current.
System pressure too high
The ion current (IC) is below the minimum
parameter. Sensor contamination, possible
coating on collector inhibiting ion
collection
Electrometer failure
The desired emission current (IE) could not
be established.
Gauge contamination, possible coating on
filament or grid surfaces.
End of filament life
System pressure too high
The Filament voltage could not be
established. Electronics Failure
The power applied to the filament is at
maximum without establishing an emission
current
Filament 1 or 2 is open
Faulty electronics
IGM401 Hornet
Possible Solution
Change to 100 μA emission current which
will operate at higher pressures or reduce
pressure
Determine source of contamination
Replace the ion gauge sensor tube
Contact InstruTech
Switch to 4 mA emission current and
attempt repeated filament starts to clean
filament
Switch to second filament, degas
Replace the ion gauge sensor tube
Reduce pressure
Contact InstruTech
Contact InstruTech
Switch to the other filament or replace
the ion gauge sensor transducer (IG4yx)
Replace electronics
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