The document provides an overview of liquid leak detection systems offered by Permalert, including their history, technologies, and applications. Key features include pal-at cable systems and Liquidwatch probe systems that monitor for leaks using coaxial cables and probes, utilizing time domain reflectometry to identify and locate issues. The systems are designed for various environments, including data centers and semiconductor facilities, and are modular, allowing for easy expansion and integration.

1. Liquid Leak Detection/LocationLiquid Leak Detection/Location
Systems for piping, raised floors,Systems for piping, raised floors,
semiconductor tools, containmentsemiconductor tools, containment
piping, fuel systems and otherpiping, fuel systems and other
applicationsapplications

2. Company ProfileCompany Profile
PermAlert is part of Perma-Pipe the largestPermAlert is part of Perma-Pipe the largest
prefabricated – preinsulated pipeprefabricated – preinsulated pipe
manufacturer in the USmanufacturer in the US
PAL-AT Leak Detection was introduced inPAL-AT Leak Detection was introduced in
1988 and was the reason for founding1988 and was the reason for founding
PermAlert ESPPermAlert ESP
Sales Volume of the parent corporationSales Volume of the parent corporation
(MFRI) is about US $178 million with over(MFRI) is about US $178 million with over
500 employees worldwide500 employees worldwide

3. PAL-AT Cable Systems andPAL-AT Cable Systems and
LiquidWatch Probe SystemsLiquidWatch Probe Systems
PAL-AT uses coaxial cables and probes toPAL-AT uses coaxial cables and probes to
monitor for liquid leakage. The system canmonitor for liquid leakage. The system can
detect and locate leaks, breaks and shorts ondetect and locate leaks, breaks and shorts on
the sensor cable as well as probe activations.the sensor cable as well as probe activations.
LiquidWatch is a probe monitoring systemLiquidWatch is a probe monitoring system
and can monitor up to 64 probes from aand can monitor up to 64 probes from a
single panel. The probes are monitored forsingle panel. The probes are monitored for
activation, breaks and shorts.activation, breaks and shorts.

4. Time Domain ReflectometryTime Domain Reflectometry
PAL-ATPAL-AT
TDR is a cable measuring technologyTDR is a cable measuring technology
related to sonar and radar. By sendingrelated to sonar and radar. By sending
energy pulses down the centerenergy pulses down the center
conductor of a coaxial cable andconductor of a coaxial cable and
measuring the reflected energy to themeasuring the reflected energy to the
outer braid a map can be stored of theouter braid a map can be stored of the
cable and monitored for change. Whencable and monitored for change. When
change occurs the type of alarm and itschange occurs the type of alarm and its
location is displayed on the panel.location is displayed on the panel.

5. TDR Trace of Dry CableTDR Trace of Dry Cable

6. TDR Trace with LeakTDR Trace with Leak
DetectedDetected

7. TDR Trace of System with Wet CableTDR Trace of System with Wet Cable

8. TDR Trace showing Growing LeakTDR Trace showing Growing Leak

9. Map 3 ResponseMap 3 Response

10. Second Leak DetectedSecond Leak Detected

11. Monitoring with Liquid on the CableMonitoring with Liquid on the Cable

12. Break DetectedBreak Detected

13. Short DetectedShort Detected

14. Probe ActivatedProbe Activated

15. PAL-AT PanelsPAL-AT Panels
AT20C - Monitoring up to 2,000’ (600 m) on a singleAT20C - Monitoring up to 2,000’ (600 m) on a single
cablecable
AT50C - Monitoring up to 5,000’ (1500 m) equivalentAT50C - Monitoring up to 5,000’ (1500 m) equivalent
length on a single cablelength on a single cable
AT20K - Monitoring up to 7,500’ (2500 m) equivalentAT20K - Monitoring up to 7,500’ (2500 m) equivalent
length per cable with a maximum of two cableslength per cable with a maximum of two cables
AT40K - Monitoring up to 5,000’ (1500m) equivalentAT40K - Monitoring up to 5,000’ (1500m) equivalent
length per cable with a maximum of eight cableslength per cable with a maximum of eight cables
AT80K - Monitoring up to 7,500’ (2500 m) equivalentAT80K - Monitoring up to 7,500’ (2500 m) equivalent
length per cable with a maximum of eight cableslength per cable with a maximum of eight cables

16. Types of CableTypes of Cable
PAL-ATPAL-AT
AGW Gold Sensor cable for use inAGW Gold Sensor cable for use in
containment piping, trenches, trayscontainment piping, trenches, trays
and subfloorsand subfloors
AGT Gold Sensor cable for useAGT Gold Sensor cable for use
in subfloors and trays. More sensitivein subfloors and trays. More sensitive
than AGWthan AGW
TFH Sensor cable for detectingTFH Sensor cable for detecting
hydrocarbons and solvents while ignoringhydrocarbons and solvents while ignoring
waterwater TFHTFH TFHTFH

17. Types of ProbesTypes of Probes
PAL-AT and LiquidWatchPAL-AT and LiquidWatch
PHL/PWS Solid state probes forPHL/PWS Solid state probes for
hydrocarbon and conductive liquidshydrocarbon and conductive liquids
PSTV/PTHL/PFS Float switches forPSTV/PTHL/PFS Float switches for
high/low levelhigh/low level
PT10 (PAL-AT) Probe integrators andPT10 (PAL-AT) Probe integrators and
PA-10 (LiquidWatch) Probe AdaptorsPA-10 (LiquidWatch) Probe Adaptors
for dry contactsfor dry contacts

18. LiquidWatchLiquidWatch
LiquidWatch has two basic panels. TheLiquidWatch has two basic panels. The
LW64 is for use in normal classifiedLW64 is for use in normal classified
probe locations while the LW64ISprobe locations while the LW64IS
provides a UL Listed System forprovides a UL Listed System for
monitoring in Class 1, Division 1 Groupsmonitoring in Class 1, Division 1 Groups
C & D locations. The basic panelC & D locations. The basic panel
monitors up to eight probes withmonitors up to eight probes with
modules being added for additionalmodules being added for additional
probe requirements.probe requirements.

19. ApplicationsApplications
Raised Floors - Data Centers, ISPs, Clean RoomsRaised Floors - Data Centers, ISPs, Clean Rooms
Telecommunication, Semiconductor, Office BldgsTelecommunication, Semiconductor, Office Bldgs
PharmaceuticalPharmaceutical
Piping - Containment piping, single wall piping,Piping - Containment piping, single wall piping,
hydrocarbon piping, waste drainshydrocarbon piping, waste drains
Trenches and Trays - Under wet benches, pipingTrenches and Trays - Under wet benches, piping
and equipmentand equipment
Generators, Electrical Switch Gear andGenerators, Electrical Switch Gear and
Transformers for hydrocarbon leakage or waterTransformers for hydrocarbon leakage or water
seepageseepage
What ever needs liquid leakage detection that aWhat ever needs liquid leakage detection that a
probe or sensor cable can be usedprobe or sensor cable can be used

23. Palcom SoftwarePalcom Software
PAL-AT and LiquidWatchPAL-AT and LiquidWatch
Palcom allows remote control of up toPalcom allows remote control of up to
254 panels with the ability to review254 panels with the ability to review
TDR traces, review the history of eachTDR traces, review the history of each
unit and to pull down a Cad drawing forunit and to pull down a Cad drawing for
each system for location of leaks,each system for location of leaks,
breaks, shorts or probe activation's.breaks, shorts or probe activation's.

24. Archive DataArchive 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**********

25. Benefits of PermAlert’s PAL-Benefits of PermAlert’s PAL-
ATAT
Wet cable startupWet cable startup
Multiple Leak location capabilityMultiple Leak location capability
Location of BreaksLocation of Breaks
Detection of Shorts versus LeaksDetection of Shorts versus Leaks
Not susceptible to contamination from dirt/dust, etc.Not susceptible to contamination from dirt/dust, etc.
Archive History DataArchive History Data
UL Listed, FM Approved, CE Approval availableUL Listed, FM Approved, CE Approval available
Class 1 Div 1 Groups C & D Sensor CircuitsClass 1 Div 1 Groups C & D Sensor Circuits
Up to 8 circuits and 7,500’ (2500 m) per circuitUp to 8 circuits and 7,500’ (2500 m) per circuit
Corrosion resistant sensor cablesCorrosion resistant sensor cables
Different cable types on the same circuitDifferent cable types on the same circuit
EPA third party testedEPA third party tested

26. Benefits of LiquidWatchBenefits of LiquidWatch
Modular in design allowing for easyModular in design allowing for easy
expansionexpansion
Monitoring of probes for activation and theMonitoring of probes for activation and the
leader cable for breaks and shortsleader cable for breaks and shorts
History log of eventsHistory log of events
UL Listed for Class 1 Div 1, Groups C & DUL Listed for Class 1 Div 1, Groups C & D
locationslocations
Different probe typesDifferent probe types
Probe adaptor to allow interface of any dryProbe adaptor to allow interface of any dry
contact probe devicecontact probe device

27. Questions and Answer PeriodQuestions and Answer Period