INFICON STM-2 USB Thin Film Rate/Thickness Monitor - Manual (Page 79)

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STM-2 Operating Manual
Chapter 6
Troubleshooting and Maintenance
6.1 Troubleshooting Guide
If STM-2 fails to function, or appears to have diminished performance, the following
troubleshooting charts may be helpful.
CAUTION
There are no user serviceable components within the
STM-2 case.
Refer all maintenance to qualified personnel.
6.1.1 Indicator
If there is a problem with STM-2, the indicator will display a signal as to the likely
cause, see
Table 6-1 .
Table 6-1 Indicator troubleshooting guide
SYMPTOM CAUSE REMEDY
Power indicator
flashing STM-2 and/or sensor not
connected. Verify proper STM-2/sensor connections.
Failed crystal/no crystal. Replace crystal with new INFICON crystal.
Two crystals placed into the crystal
holder. Remove one of the crystals.
Computer did not initialize STM-2. Click Find Instruments >> Search for
STM-2s on LabVIEW Application.
Power indicator
extinguished STM-2 does not have power. Verify computer is turned on and USB cable
is plugged in.
Device drivers not properly
installed. Uninstall and reinstall device drivers.
USB indicator is
flashing Communication traffic. Program software to query STM-2 every 100
ms for indicator to be illuminated.
USB indicator is
extinguished Software not running. Open STM-x_win32 application.
Software not installed. Install STM-x_win32 application.