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Liquid Leak Detection/Location Systems for piping, raised floors, semiconductor tools, containment piping, fuel systems and other applications. Company Profile. PermAlert is part of Perma-Pipe the largest prefabricated – preinsulated pipe manufacturer in the US
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Liquid Leak Detection/Location Systems for piping, raised floors, semiconductor tools, containment piping, fuel systems and other applications
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
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.
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.
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
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
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
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.
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
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.
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 • CABLE 2 RETURNED TO NORMAL AT 1226 ON 5/8 • SECURITY CODE 1 ENTERED, LEVEL 250 AT 1231 ON 5/8 • CABLE 1 SETUP, WITH LENGTH OF 514 FEET AT 1231 ON 5/8 • NEW CABLE 1 REFERENCE, STORED AS MAP 1 AT 1231 ON 5/8 • CABLE 1 MONITORING ON, MAP 1 AT 1231 ON 5/8/98 • CABLE 1 RETURNED TO NORMAL AT 1232 ON 5/8 • **********End of Archives**********
Benefits of PermAlert’s 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
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