QuadTech Sentry 10 Plus, Instruction Manual

Page: 19 / 85

Page 19 of 85
Condensed Operating Instructions (Continued)
Offset
After setting your test parameters, zero the Sentry Plus Series instrument by using the automatic
offset. With no device connected, connect the appropriate cable (or other fixture) into the
OUTPUT connectors. Refer to paragraph 2.13 cable connections based on test to be performed.
Return and HV test leads should not be connected together (open circuit) for AC and DC hipot
tests. Return and GC test leads should be connected (short circuit) for a GC test. There is no
offset in an IR test.
NOTE:
If Ground Continuity (GC) is turned ON when performing an offset, the continuity lead must be connected to the
return (RTN/LOW) terminal, otherwise turn the continuity test OFF.
Prior to performing the OFFSET function:
•
Allow the instrument to warm up for 15 minutes.
•
Connect the Test cables (or fixture) to the front panel OUTPUT and RTN/LOW connectors.
•
Program the test steps.
With the instrument in STAND BY status:
•
Press [F4] = MORE
•
Press [F3] = OFFSET
•
Follow instructions on display: i.e.: connect OPEN across OUTPUT terminal.
•
Press green [START] button.
•
Wait while instrument gets OFFSET value.
•
The OFST block at the bottom of the display is now highlighted (back lit).
•
Press [F4] = MORE to return to STAND BY status.
OPEN
When ready, press [START] to get offset values
F1
RTN/LOW
F2
OUTPUT
DANGER PASS FAIL
F1
F2
F3
F4
START
STOP
Sentry 30 Plus AC/DC/IR Hipot Tester
0 1
Q
uadTech
!
CAUTION
F4
F3
Max 5kVAC
6kVDC
CAL UPDATE
PRESS START KEY TO GET OFFSET..
1.
2.
Please open the HV output terminal
No offset in IR mode.
+ -
Figure COI-3: Zero/Offset OPEN Configuration