Vanguard CT-7000 S3 - Manual (Page 66)

CT-7000 S3 USER’S MANUAL REV 1
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3.3.4. Performing an On-Line Timing Test on Live Contacts
The optional "On-line" timing mode (part no. 9021-OT) can be used to capture the breaker's
trip or close time, the trip/close coil current “fingerprint”, and the battery supply voltage while
the breaker is still in service. The On-line timing mode requires an external trigger on the coil
being tested.
Follow the steps below to perform an on-line timing test (an OPEN test example is shown
below):
a. Make the cable connections per Figure 7 and then start from the "START-UP" menu:
Press the [1] key (TIME BREAKER).
b. The following screen will be displayed:
Press the
[2]
key (TIME LIVE CONTACTS).
c. The following screen will be displayed:
Press the [1] key (WINDOW = 1 SEC).
d. The following screen will be displayed:
TIMING MODE:
1. OPEN 2. CLOSE
3. O-C 4. C-O
TIMING WINDOW:
1. WINDOW = 1 sec
2. WINDOW = 10 SEC
3. WINDOW = 20 SEC
1. TIME DRY CONTACTS
2. TIME LIVE CONTACTS
1. TIME BREAKER 09/23/13
2. GET RESULTS 10:10:10
3. SAVE/RESTORE
4. SETUP
5. DIAGNOSTICS