Vanguard CT-7500 - Manual (Page 30)

MODEL CT-7500 OPERATING INSTRUCTIONS
24
Rev 2 Jan 2001
9.1.1 Timing an OPEN Operation With No Insertion Resistor
Table 9-1. Open Operation With No Resistor
STEP OPERATION ACTION DISPLAY
1 READY TIMER FOR BREAKER OPERATION. PRESS #1 KEY. INSERTION RESISTOR?
1.NO
2.YES
2 SELECT NO INSERTION RESISTOR. PRESS #1 KEY. TIMING WINDOWS:
1.WINDOW = 1 SECOND
2.WINDOW = 10 SECONDS
3 SELECT 1-SECOND WINDOW. PRESS #1 KEY. 1.INTERNAL TRIGGER
2.EXTERNAL TRIGGER
4 SELECT INTERNAL TRIGGER. PRESS #1 KEY. TIMING MODE:
1. OPEN
2. CLOSE
3. O-C 4. C-0
5. O-C-O
5 SELECT OPEN OPERATION. PRESS KEY #1. OPEN TIMING
Hold "ARM" Switch,
Then "START".
"STOP" to ABORT
6 INITIATE OPEN COMMAND. HOLD "ARM" KEY AND
PRESS "START" KEY. TEST IN PROGRESS
Hold "ARM" Until
Test complete.
(Up to 15 seconds)
7 ANALYZER IS READY TO OUTPUT RESULTS. NONE. 1.TIME BREAKER
2.GET RESULT
3.SET-UP
4.DIAGNOSTIC
Note
One-second timing windows are used for breaker timing; 10-second timing windows are used
for circuit-switcher timing.