MILITARY CYPRES USER'S GUIDE
Airtec GmbH
Page 9
1.5
Operational safety
There are two important points to remember regarding the operational safety of
CYPRES:
1.
CYPRES self-tests automatically every time it is switched on. After every switching-
on procedure, CYPRES executes a self-test routine during which all important
internal functions are checked.
Usually, a positive outcome to this self-test
should assure you of trouble free operation for up to 14 hours.
When the display unit shows "0 ", the self-test has been completed successfully.
If the self-test has resulted in errors or discrepancies, CYPRES will not assume
operating mode but will switch itself off while displaying an error code. This error
code indicates why the activating process was abandoned (see page 25).
2.
CYPRES has fail-safe error detection. Two processes are activated in CYPRES
once the unit has been switched on: a primary working process and an
independently operating controlling process that monitors the working process
continuously. In case of errors while the working process is active, the back-up
controlling process will switch the unit off.
Depending on the type and potential impact of the error, CYPRES can either be
switched on again or it will stay in shut-down mode permanently. With certain
error codes (see error code list in chapter 5), it is not possible for the user to
reactivate the unit. In such cases, CYPRES must be sent back to the manufacturer
for inspection and adjustment.
Remember:
A positive outcome of the self-test should assure you a trouble free
operation for up to 14 hours.
