2009 by ELTRA GmbH Germany – July 2009 – Service Manual Thermostep
Page 20
2. Malfunctions
If a malfunction occurs during analysis, an error message is shown at Form –
Flow
accompanied by a permanent accustic signal. In the following the error message and the error
situation is described followed by a description how to correct it. The troubleshooting is listed
at frequency of its appearance, so it is recommended to check them at the listed sequence.
2.1
Initializationtest failed
After starting software a TGA initialisation test checks functionality of the analyser. For
progress through this test Thermostep has to be switched on (position 1 or 2). The test checks
the single fuctions one after another and interrupts when an error occurs. Depending at which
function the test is interrupted it maybe necessary to open the analyser manually (see
Operation manual: Form –
Controller
), because the cover doesn’t open until the test is
completed.
The test checks the below functions:
a.) Availability of compressed air
b.) Communication between balance and PC
c.) Functionality of the balance
d.) Communication of Thermostep control unit and PC
e.) Availability of Nitrogen and Oxygen
f.) Functionality of Outputs
At a.)
Error message: “No compressed air!”
Check the availability of compressed air and the gas tube to the analyser!
Fig. 2.1: BS – Connector for compressed air
