Raytech TraceTek TTDM-128, User Manual

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TTDM-128
User Manual
H
INT
:
Use the Events History to track the events between the “first leak” and the “most
recent event.” See “The Events History Log” section on page 27.
ADDITIONAL LEAK
If liquid contacts sensing cable at a significant distance from the initial leak, the module
will re-alarm however it will indicate that this realarm leak distance could indicate a new
leak rather than a growing leak. In this case, the TTDM shows the re-alarm location in
square brackets:
CH01 USER_LABEL_0001
Leak 370 ft
Re-Alarm [205]
HH:MM DD-MON-YYYY
Brackets indicate that the value shown requires interpretation; when an additional leak
occurs, the value represents the “electrical center” of the leaks.
SERVICE-TO-LEAK ALARM
Although the TTDM-Plus and TTSIM system can continue to monitor a channel when a
Service Required alarm is in effect, the accuracy of location may be impaired.
Example:
CH01 USER_LABEL_0001
Service Req’d [257]
HH:MM DD-MON-YYYY
If sensing cable on that SIM channel detects a full-fledged leak before service is
performed, the TTDM-128 displays a new leak alarm. If the location measured is nearly
the same as the earlier Service Required alarm, the display would appear as below:
CH01 USER_LABEL_0001
Leak 257 ft
HH:MM DD-MON-YYYY
If the leak location is different from the earlier Service Required alarm, the TTDM-128
shows a slightly different display:
CH01 USER_LABEL_0001
Leak [190]
HH:MM DD-MON-YYYY
The TTDM-Plus indicates the uncertainty about the leak location (due to the prior Service
Required alarm condition) by showing the location in brackets.
detected significant movement of the leak (that is, a movement greater than the re-alarm
The LCD now displays the first leak (on the second line of the display) and the most
recent alarm on the third line. The first leak recorded on the SIM channel is likely to be
the fi