ADS Environmental Services Portable FlowShark Pulse QR 775006 A2 - Manual (Page 86)

Installation 3-49
An air vent plug is attached to the air hose on the end connected to the compressor.
This plug is required for dismantling the profiler. Dismantle the profiler in the
following way:
 Prior to dismantling the profiler, prevent it from floating away using the chain.
For example, consider tying the unit to a manhole rung.
 Stand safely at the rim of the manhole and anticipate the high tractive forces
that might occur from the strong water pressure pushing the unit out once the
air pressure is released.
 Deflate the balloon by carefully pressing the air vent plug into the connection
valve at the end of the air hose.
Air will escape from the balloon slowly and the water dammed upstream will force
the pipe profiler out of the pipe.
Air will escape with a pressure of up to 21.8 psi (1.5 Bar).
Strong water pressure may result from certain factors, such as high
dam pressure or the blockage created from the pipe profiler.
Under these circumstances, take sufficient measures to secure the
chain (e.g., using a tripod and karabiner or similar device) prior to
deflation.
Pull up the pipe profiler using the chain. When elevating the profiler, take into
consideration the weight of the unit based on the diameter. Therefore, ADS strongly
recommends employing equipment such as pulleys or other lifting devices.
Cable Cover
To prevent debris buildup around the cable and/or to safely fasten sensor cables on
horizontal surfaces, cover the cable with a thin, stainless steel sheet 1.4571 (V4A).
Covers of 3.3 feet (1 m) in length are available from ADS.
1 Stainless steel/cable cover
2 Cable
Cable layout with cable cover