Manual

ATO-400 / ATO-600 Operating Procedures
40
6.12 Diagnostic Check Procedure
This procedure describes the steps to perform the diagnostic check on the ATO.
Table 13.0 Diagnostic Check Procedure
STEP ACTION ATO DISPLAY
13-1
The diagnostic check is a functional
verification self-test of the ATO . This
procedure begins by pressing key #3 on the
START MENU, which displays a
calibration check prompt to attach the test
leads to a shorting bar (See Figure 11).
13-2
When the test leads are attached to a
shorting bar, press the “ENTER” key to
start the self-test process. The self-test
feature checks ramping current and displays
a percent of ramp level as it ramps to full
current. When the ramp reaches full
current, the remaining self-check functions
automatically sequence without operator
control. If any circuit fails (does not pass),
then do not use the ATO unit to measure
any resistance until the problem has been
corrected.
13-3
Automatic, no operator action required.
13-4
Automatic, no operator action required.
13-5
Automatic, no operator action required.
13-6
Automatic, no operator action required.
13-7
Automatic, no operator action required.
DIAGNOSTIC CHECK
CONNECT SHORTING BAR
“ENTER” TO CONTINUE
RUNNING DIAG CHECK…
RAMPING CURRENT: xx%
RUNNING DIAG CHECK…
CURRENT RAMP CKT
“PASS”
RUNNING DIAG CHECK…
ZERO CKT CHECK
“PASS”
RUNNING DIAG CHECK…
FSCALE CKT CHECK
“PASS”
RUNNING DIAG CHECK…
MEAS CKT CHECK
“PASS”
RUNNING DIAG CHECK…
RAMPING CURRENT: xx%