Raytech TraceTek TTDM-128 - Appendix 1 -Events Glossary

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TTDM-128
User Manual
Appendix 1 -
Events Glossary
Type of
Event
Message Description
Power Power Down The time the power was last supplied to the TTDM-128
is stored in nonvolatile memory and is entered into the
Events History log when power is restored.
Restart The Events History log records when power is supplied
to the unit or when the unit is manually restarted.
Leak Leak Liquid detected at the displayed channel and location.
Re-Alarm Occurs under three different situations:
Location changed past Re-Alarm threshold.
New leak location is more than 25 feet from the last
stored location on the channel (new average is shown in
brackets).
Automatic Re-Alarm after the Re-Alarm interval (a user
setting) if the leak condition still exists.
Leak
Cleared
Displayed when channel status returns to normal after a
leak is cleared.
New Leak A new leak on a channel is detected after an earlier leak
is cleared but before the leak relay is Reset.
Fault Cable Break Loss of continuity in both loops of the sensing circuit.
May be caused by broken or disconnected sensing
cable, jumper cable, or connections.
YB Loop
Break
Break in the Yellow/Black loop of the sensing cable; see
Appendix 3 for description of the sensing circuit.
RG Loop
Break
Break in the Red/Green loop of the sensing cable.
Loop
Imbalance
Resistance of the two cable loops indicates more than
25% difference in measured resistance. May be early
indication of cable deterioration or damage, or electrical
contact of one sensing wire with a ground (earth) path.
Cable
Restored
Displayed when cable returns to normal after any fault
condition.
SI Comm
Error
Communications problem between TTDM-128 unit and
any installed SIM channel.
SI Comm
Recovered
Displayed when communication with SIM unit is re-
established.
SI H/W Error A self-test of the SIM unit has failed. The unit needs to
be repaired or replaced.
SI H/W
Recovered
Displayed after a SIM hardware problem has been
corrected.
Service Service
Required
A small amount of current is owing between the two
sensing wires in the sensing cable (see Appendix 3 for
description of the sensing circuit). Usually caused by a
small leak or buildup of contaminants. TTDM-128 may
indicate the location in brackets if it can obtain consistent
measurements.