Measurement Procedure - QuadTech Sentry Plus Series Instruction Manual

2.14

Measurement Procedure

Before a measurement is made verify the following:
1. Sentry Plus Series instrument [POWER] ON.
2. 15-minute warm-up.
3. Test parameters programmed and shown on STAND BY display.
4. Test cables or fixture connected.
5. Offset Function initiated.
6. Device under test connected.
The operator has the option of performing a test at power-up conditions (test conditions at which
the instrument was last powered down) or recalling one of 60 stored test setups. Refer to
paragraphs 2.4 – 2.9 for test programming and storage/recall instructions.
To initiate a test:
•
Press [STOP] to make sure instrument is in STAND BY status.
•
Press [START]. DANGER led flashes. Status window shows UNDER TEST.
•
The test voltage is shut off when all test steps are completed,
•
OR when a test result is judged a FAIL per programmed test limits,
•
OR when the [STOP] button is pressed.
•
Press [STOP] at any time to terminate the output voltage and stop the test.
The Sentry Plus Series instrument judges the measurement value as GOOD or NO GOOD. A
GOOD judgment means the DUT passed all programmed steps. Upon completion of the test the
output voltage is terminated and the display shows PASS. The rear panel PASS signal is
functional and the buzzer sounds (if not turned OFF in SYSTEM parameters under MENU).
If a multiple step test is running and one step in the sequence fails, the Sentry Plus instrument
will not continue with the remaining steps
If the measurement value of the test (or any one step of the test) does not meet programmed
limits, the DUT is judged as NO GOOD, the display will show FAIL and the buzzer will sound
until the [STOP] button is pressed. The [STOP] button may be pressed at any time to terminate
the output voltage and stop the test.
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