Raytech TraceTek TTDM-128, User Manual

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The TTDM-128 System Display
The icons represent the four states of the TTDM-128 leak detection network. The LEDs
indicate which states are currently active.
Monitoring
Service
Leak
Fault
Green Yellow Red Red
N
OTE
: The Service, Leak and Fault LEDs will illuminate if an alarm condition exists on any
SIM. Multiple LEDs may be illuminated simultaneously to indicate multiple types of alarms,
although the alarms could exist on different SIM channels.
MONITORING
This green LED indicates that the TTDM-PLUS is powered up and monitoring at least one
sensor circuit.
SERVICE
The TTDM-PLUS is able to give advance warning of potential problems. The yellow
Service LED illuminates to indicate that service is required on one of the sensing cables
attached to the network. Note that the green Monitoring LED remains illuminated; the unit
continues to monitor for leaks during a Service alarm.
LEAK
When liquid is detected, the red Leak LED illuminates. Note that the green LED remains
illuminated; the unit continues to monitor for new leaks on all channels, as well as for
changes to the detected leak.
FAULT
When the TTDM-PLUS module detects a fault — either a cable fault (break) or an
electronics fault — the red Fault LED illuminates. After a fault on an individual SIM
has been detected, the TTDM-PLUS module will, in most cases, continue to scan the
remaining SIM units and their associated sensing circuits. However, some fault conditions
may disable multiple channels or even the entire system. The TTDM-PLUS is unable to
detect a leak on any channels affected by a fault,
I
MPORTANT
: Always investigate the cause of a Fault condition immediately.
N
OTE
: For more information on the various TTDM-128 alarm states, see the Alarms section
of the manual on page 35.