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Manual leak testing

SHL

RS–

RS+

SHL

RS–

RS+

RED

GRN

YEL

BLK

GND

TTSI

M-1

Leak

Location Module

RATING: 24V

±10%

50/60 Hz

3VA

Network

Addr

ess

TTSIM-1

TTSIM-1 Indications:

LEAK

Red

CABLE BREAK

Flashing yellow

SERVICE

Flashing yellow

POWER LED

Green

TTDM-128 Indications:

LEAK Red

CABLE BREAK

Yellow

POWER LED

Green

Text message in 4x20 display

TTDM-128

TRACE

TEK

Initial Power-up and Test

Connect the cable to the alarm module and test the system.

• For direct buried long line underground leak detection

applications, TraceTek requires use of nVent RAYCHEM

TraceTek TTSIM-1. TTSIM-1 can be used as standalone unit or

in conjunction with TTDM-128.

• Apply power to the TraceTek instrument and look for a

“Normal” indication.
– On TTSIM-1, Normal Condition is indicated by a green LED

and a momentary flash of the RED LED every 5 seconds.

– On nVent RAYCHEM TraceTek TTDM-128 the alpha-numeric

display will indicate a channel number and display the words
SYSTEM NORMAL.

• If the Yellow LED is on in any of these instruments or the words

“Cable Break” or “Loop Break” is displayed, then the cable

system must be inspected for loose connections, missing end

terminations until the cable continuity is established and the

“Normal” condition is achieved.

• Leak testing can be done with a mapping cap (TT-MAPPING

CAP-MC) or by bending the sensor cable tightly between

fingers. The MAPPING CAP simulates a leak at the location

where it is installed in the system.
– For TTSIM-1 a red LED will indicate that the simulated LEAK

has been detected.

– For TTDM-128 a leak location will be displayed in feet or

meters (as selected) in addition to the red LED indication

• For larger piping systems with TTDM-128 or TTSIM-1,

the MAPPING CAP should be moved sequentially to each

accessible connector. Record the distance displayed on the

as-built drawings. This will become the basis for the System

Map.

• Create a System Map showing where sensing cables and alarm

modules have been installed. The System Map will include

the beginning and end of sensing cables, and location of any

connections. If using locating alarm modules, the System Map

should include distance readings at significant landmarks

(beginning and end of system, changes of direction, branches,

valves, low points, etc.).

Note

: Do not use fuel to test the TT5000-HS cable. Do not use

solvent to test the TT5001-HS cable. The TT500X-HS cable is not

resettable after exposure. Leak testing should be done, by bending

sensor cable tightly between fingers, or with a mapping cap

(TT-MAPPING CAP-MC). The TT-MAPPING CAP-MC simulates a

leak at the location where it is installed in the system.

Содержание TRACETEK TT5000-HS

Страница 1: ...mination Used during installation or trouble shooting to temporarily isolate a sub section of sensor cable for resistance measurements nVent RAYCHEM TraceTek TT Kellems Grip Large part P000001291 Large Kellems Grip used in cable pulling when rope overbraid loop not available nVent RAYCHEM TraceTek TT ULTRA TORCH part 390067 000 Flameless heating tool Ultratorch 200 or suitable heat gun with concen...

Страница 2: ...ll the rope in opposite direction for a short distance then try repulling in original direction with normal force Shake the rag attached to the sizing tool free of excess debris Remove the rope section containing the rag from the sizing tool Replace the rag with a clean rag if necessary and then attach the rope section with the rag to the eye splice in advance of the sizing tool Reverse the pullin...

Страница 3: ...f cable into the conduit Before pulling the cable into any conduit verify that correct conduit is being used Good conduit installations will use a strategy to mark conduits Check with project supervisors if any doubt exists as to how the conduit is labeled Errors in conduit identification and cable orientation can result in compromised cable quality Insert the end of the rope braid as far as possi...

Страница 4: ...normal force Finish the cable pull by extending the TT500X HS MC with factory installed connectors or TT5000 HS HYB HSE with factory installed end termination cable at least 1 foot beyond top of the access point conduit riser For TT500X HS bulk sensing cable without connectors cable extend at least 2 feet beyond top of the access point conduit riser The extra length is necessary due to connectoriz...

Страница 5: ...zed cable or as part of the TT5000 HUV CK MC M F connector kit Install the heat shrink tube as environmental seal over all mated male female pin socket connections Center the unlabeled shrink tube over the pin socket connection Heat shrink the tube over the connection beginning in the center and shrinking towards the ends until the tube fully conforms to the shape of the connection and adhesive fl...

Страница 6: ...sensing cable following the Sensing Cable Test Procedure If practical connect the installed sensing cable to the TraceTek alarm module Test the system and put it in operation following the alarm module installation instructions At the beginning of the next work day Check that the installed sensing cable is clean and intact following the Sensing Cable Test Procedure Compare the results with those o...

Страница 7: ...ries a cable string ensure they are all connected 2 Connect a Modular Leader Cable TT MLC MC to the sensing cable 3 Verify that the sensing cable is intact Loop 1 Measure the resistance between the yellow and black wires of the leader cable as illustrated Loop 2 Measure the resistance between the red and green wires of the leader cable The readings should roughly equal a multiple of the length of ...

Страница 8: ...ngths and is also available in bulk form for long distance runs between the sensor cable and alarm module location F Install a leader cable TT MLC MC BLK between the sensor cable and the alarm module location The factory standard length of leader cable is 12 ft 4 m It has a female metal connector on one end and four tinned leads on the opposite end for connection at the alarm module terminal block...

Страница 9: ...ons until the cable continuity is established and the Normal condition is achieved Leak testing can be done with a mapping cap TT MAPPING CAP MC or by bending the sensor cable tightly between fingers The MAPPING CAP simulates a leak at the location where it is installed in the system For TTSIM 1 a red LED will indicate that the simulated LEAK has been detected For TTDM 128 a leak location will be ...

Страница 10: ...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 sequen...

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