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RaychemTraceTek-IM-H58740-TT5000HS-EN-1805
PN P000001289
nVent.com
Symptom
Possible Cause and Correction
Green LED not visible on
TraceTek instrument
System is not powered. Check power wiring. Check circuit breakers that may have been tripped.
On TTDM-128 check fuse and replace if necessary.
Leak alarm
(TTDM-128 message and red LED)
(TTSIM-1 Red LED ON)
This is an indication of a LEAK event.
For leak locating modules (TTDM-128): Using leak distance indication and System Map as a guide,
investigate system condition, work to locate and repair leak.
For non-locating modules: Work to locate and repair the leak. (If your system is constructed with multiple
sensor cable segments, using an end termination (TT-MET-MC) to break the system into sections can help in
locating the leak. Work outward from the alarm module using the end termination to establish a temporary
end of the circuit, then sequentially move outward adding one cable segment at a time).
TT500X-HS cannot be reset like other TraceTek cables. Once the cable has been exposed to fuel (for
TT5000-HS) or solvent (for TT5001-HS) it must be replaced. Damaged cable must be cut out of the system
and replacement cable must be installed using factory standard lengths or sections of bulk cable and
connector kits.
In the event of a leak, examine the metal connectors on the sensing cable for possible corrosion. Also
examine the conduit and soil in the leak vicinity for residual contamination. Replace any damaged
components; thoroughly clean up all leaked liquid to eliminate the risk of another sensor cable alarm from
residual contamination.
Note: When the Service Req’d or SERVICE condition exists (Yellow LED), leak location accuracy is reduced
for a new leak.
Flashing yellow LED on TTSIM-1
Could be cable break or service indication. Refer to alarm module instructions for more information.
For Cable break indication: Check for loose connectors, missing end terminations, broken jumper wires or
physical damage to the cable. Repair or replace cable if necessary. The TT-MET-MC end termination can be
used to isolate a damaged section by working outward from the instrument using the end termination to
establish a temporary end of the circuit then sequentially moving outward adding one cable segment at a
time.
“SERVICE Req'd” message
(TTDM-128 Only)
This is an early warning message from the TTDM-128 panel indicating there is current leakage, but not yet to
the level that constitutes a leak. The TTDM-128 panel may display a location in square brackets. If a location
is displayed it should be investigated for possible sources of kinks or pinches. The square brackets indicate
that the leak signal is not strong enough for an accurate location calculation, and may include some error.
Red LED fails to turn off after leak
is repaired, and leak alarm reset
attempted
Examine cable for additional damage or leaks.
Leak location seems inaccurate in
actual leak situation
More than one leak may be present or the cable may be wetted in several locations. If the system is
monitored by a TTDM-128, check the event history to see if there is an earlier indication of a nearby leak or a
SERVICE NEEDED message. If necessary use the end termination to break the system into smaller segments
and work outward to isolate each leak location in multiple leak scenarios.
Leak locations seem inaccurate or
unstable during mapping tests
Make sure that the simulated leak produced by tightly bending the sensor cable or use of TT-MAPPING
CAP-MC is kept in place for at least 30 seconds. The location circuitry in the instruments require a steady
leak location in order to compute an accurate distance. Removing the simulated leak too quickly induces a
random error.
Troubleshooting
North America
Tel +1.800.545.6258
Fax +1.800.527.5703
thermal.info@nvent.com
Europe, Middle East, Africa
Tel +32.16.213.511
Fax +32.16.213.604
thermal.info@nvent.com
Asia Pacific
Tel +86.21.2412.1688
Fax +86.21.5426.3167
cn.thermal.info@nvent.com
Latin America
Tel +1.713.868.4800
Fax +1.713.868.2333
thermal.info@nvent.com
