Distinct
environments exist for defining or running tests : the first one is
the Test Editing (or debugging) environment, reserved to technicians and
protected by password; the second one is the Running environment, very easy
and friendly, for production operators (no password required).
You can inspect results with the scope function, save, recall and print
plots, or export and elaborate them with your favorite spreadsheet.
Calibration and troubleshooting are strongly dependent on actual hardware
setup, relative software is supplied separately.
Editing environment
You can run the testprogram while editing it, one step a time or all together. Interface is very easy and self explaining.
You can easily insert, remove steps, change their order and define PASS or FAIL jump for each step.
You can inspect results with the scope function, save, recall and print plots, or export and elaborate them with your favorite spreadsheet.
Production environment
It
is an essential and easy to use environment, results (total or partial)
are displayed clearly.
Collection of test results is possible on demand or automatically, and .you
can elaborate them with your favorite spreadsheet.
CRMT firmware is configured according to the actual hardware; on power up, all boards are cheched and if any board is not responding or suffering a fault condition, that is notified to the operator. Anyway, if a board is not present, all tests that not involve that board can run, so you can go on working even if a faulting module is removed for repairing. This is true even for individual high current current modules, so you can remove the faulting bank and go on working with a lower current.
Before
beginning the test sequence the status of all present boards and the safeties
status are checked, if any failure occurred this is notified to the operator
and the test sequence is aborted.
If during the test sequence the safeties go unsafe, the generators are immediately
disabled in hardware.
Calibration environment
The
calibration procedure interactively drives the operator during the steps
and asks him (when needed) to connect a tester or to adjust trimmers or
to move switches on the calibration tool; the software drives the generators
and executes measures in a stepwise way, so you can verify (if you like)
each operation.
The calibration tool is a set of reference loads arranged to be seen as
a reference DUT; you just have to plug it into the system output connector
and to move switches when asked to.
Calibration process depends on the actual system configuration; a separate
specific calibration software is supplied with the system.

CREA
s.n.c. Strada Arrivore, 31 10154 Turin (Italy)
tel +39 11 246 21 47 - fax +39 11 246 22 00