Liquid Leak Detection/Location Systems for piping, raised floors, semiconductor tools, containment piping, fuel systems and other applications

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• Liquid Leak Detection/Location Systems for
  piping, raised floors, semiconductor tools,
  containment piping, fuel systems and other
  applications

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Company Profile

• PermAlert is part of Perma-Pipe the largest
  prefabricated preinsulated pipe manufacturer in
  the US
• PAL-AT Leak Detection was introduced in 1988 and
  was the reason for founding PermAlert ESP
• Sales Volume of the parent corporation (MFRI) is
  about US 178 million with over 500 employees
  worldwide

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Art Giesler

• Mechanical Engineer from UMR
• Worked for York Air Conditioning
• MBA from TCU
• Hydro-Air, Inc. a manufacturers rep
• PermAlert ESP
• Projects Social Security, VISA, IBM, Intel,
  AMD, HP, Exodus, Digital Island, US West, Nuclear
  Power Plants, DOE

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PAL-AT Cable Systems and LiquidWatch Probe
Systems

• PAL-AT uses coaxial cables and probes to monitor
  for liquid leakage. The system can detect and
  locate leaks, breaks and shorts on the sensor
  cable as well as probe activations.
• LiquidWatch is a probe monitoring system and can
  monitor up to 64 probes from a single panel. The
  probes are monitored for activation, breaks and
  shorts.

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Time Domain ReflectometryPAL-AT

• TDR is a cable measuring technology related to
  sonar and radar. By sending energy pulses down
  the center conductor of a coaxial cable and
  measuring the reflected energy to the outer braid
  a map can be stored of the cable and monitored
  for change. When change occurs the type of alarm
  and its location is displayed on the panel.

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TDR Trace of Dry Cable
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TDR Trace with Leak Detected
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TDR Trace of System with Wet Cable
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TDR Trace showing Growing Leak
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Map 3 Response
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Second Leak Detected
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Monitoring with Liquid on the Cable
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Break Detected
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Short Detected
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Probe Activated
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PAL-AT Panels

• AT20C - Monitoring up to 2,000 (600 m) on a
  single cable
• AT50C - Monitoring up to 5,000 (1500 m)
  equivalent length on a single cable
• AT20K - Monitoring up to 7,500 (2500 m)
  equivalent length per cable with a maximum of two
  cables
• AT40K - Monitoring up to 5,000 (1500m)
  equivalent length per cable with a maximum of
  eight cables
• AT80K - Monitoring up to 7,500 (2500 m)
  equivalent length per cable with a maximum of
  eight cables

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Types of CablePAL-AT

• AGW Gold Sensor cable for use in containment
  piping, trenches, trays
• and subfloors
• AGT Gold Sensor cable for use
  in subfloors and trays. More
  sensitive than AGW
• TFH Sensor cable for detecting hydrocarbons
  and solvents while ignoring water TFH

• TFH

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Types of ProbesPAL-AT and LiquidWatch

• PHL/PWS Solid state probes for hydrocarbon and
  conductive liquids
• PSTV/PTHL/PFS Float switches for high/low level
• PT10 (PAL-AT) Probe integrators and PA-10
  (LiquidWatch) Probe Adaptors for dry contacts

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LiquidWatch

• LiquidWatch has two basic panels. The LW64 is
  for use in normal classified probe locations
  while the LW64IS provides a UL Listed System for
  monitoring in Class 1, Division 1 Groups C D
  locations. The basic panel monitors up to eight
  probes with modules being added for additional
  probe requirements.

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Applications

• Raised Floors - Data Centers, ISPs, Clean Rooms
  Telecommunication, Semiconductor, Office Bldgs
  Pharmaceutical
• Piping - Containment piping, single wall piping,
  hydrocarbon piping, waste drains
• Trenches and Trays - Under wet benches, piping
  and equipment
• Generators, Electrical Switch Gear and
  Transformers for hydrocarbon leakage or water
  seepage
• What ever needs liquid leakage detection that a
  probe or sensor cable can be used

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Palcom SoftwarePAL-AT and LiquidWatch

• Palcom allows remote control of up to 254 panels
  with the ability to review TDR traces, review the
  history of each unit and to pull down a Cad
  drawing for each system for location of leaks,
  breaks, shorts or probe activation's.

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Archive Data

• POWER LOST AT 8985 ON 18/95 RESTORED AT 0853 ON
  5/8
• YEAR CHANGED FROM 29 TO 98 AT 0853 ON 5/8
• CABLE 1 SETUP, WITH LENGTH OF 514 FEET AT 0921
  ON 5/8
• LEAK DETECTED IN CABLE 3 at 225 FEET AT 1157 ON
  5/8
• ALARM ON CABLE 3 SILENCED AT 1157 ON 5/8
• CABLE 4 SETUP, WITH LENGTH OF 538 FEET AT 1208
  ON 5/8
• SECURITY CODE 1 ENTERED, LEVEL 250 AT 1210 ON
  5/8
• NEW CABLE 4 REFERENCE, STORED AS MAP 1 AT 1210
  ON 5/8
• CABLE 4 MONITORING ON, MAP 1 AT 1210 ON 5/8/98
• CABLE 4 RETURNED TO NORMAL AT 1211 ON 5/8
• SECURITY CODE 1 ENTERED, LEVEL 250 AT 1217 ON
  5/8
• CABLE 3 SETUP, WITH LENGTH OF 833 FEET AT 1217
  ON 5/8
• NEW CABLE 3 REFERENCE, STORED AS MAP 1 AT 1217
  ON 5/8
• CABLE 3 MONITORING ON, MAP 1 AT 1217 ON 5/8/98
• CABLE 3 RETURNED TO NORMAL AT 1218 ON 5/8
• SECURITY CODE 1 ENTERED, LEVEL 250 AT 1225 ON
  5/8
• CABLE 2 SETUP, WITH LENGTH OF 815 FEET AT 1225
  ON 5/8
• NEW CABLE 2 REFERENCE, STORED AS MAP 1 AT 1225
  ON 5/8
• CABLE 2 MONITORING ON, MAP 1 AT 1225 ON 5/8/98

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Benefits of PermAlerts PAL-AT

• Wet cable startup
• Multiple Leak location capability
• Location of Breaks
• Detection of Shorts versus Leaks
• Not susceptible to contamination from dirt/dust,
  etc.
• Archive History Data
• UL Listed, FM Approved, CE Approval available
  Class 1 Div 1 Groups C D Sensor Circuits
• Up to 8 circuits and 7,500 (2500 m) per circuit
• Corrosion resistant sensor cables
• Different cable types on the same circuit
• EPA third party tested

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Benefits of LiquidWatch

• Modular in design allowing for easy expansion
• Monitoring of probes for activation and the
  leader cable for breaks and shorts
• History log of events
• UL Listed for Class 1 Div 1, Groups C D
  locations
• Different probe types
• Probe adaptor to allow interface of any dry
  contact probe device

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Questions and Answer Period