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Table of Contents
Troubleshooting
Related Manuals for Permalert PAL-AT Series
Summary of Contents for Permalert PAL-AT Series
- Page 2 The information contained in this manual, including but not limited to any product specifications, is subject to change without notice. PERMALERT ESP, INC. (PERMALERT) PROVIDES NO WARRANTY WITH REGARD TO THIS MANUAL OR ANY OTHER INFORMATION CONTAINED HEREIN AND HEREBY EXPRESSLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE WITH REGARD TO ANY OF THE FOREGOING.
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Page 3: Table Of Contents
PAL-AT Operating Manual Table of Contents Introduction ....................5 1.1 Theory of Operation ......................5 1.2 Power Up ..........................5 1.2.1 Initial Display ......................5 1.2.2 Contrast Adjustment.....................6 1.2.3 Installation Instructions ..................6 1.2.4 Manual Updates ....................6 Operating PAL-AT ..................7 2.1 Setup ..........................7 2.1.1 Multiple Cable System ..................7 2.1.2... - Page 4 PAL-AT Operating Manual 2.4 Monitor ........................... 16 2.4.1 Normal Messages Displayed ................16 2.4.2 Fault Messages Displayed ................16 2.4.3 Alarm Silence Feature ..................17 2.4.4 Failure to Enter Monitor Mode ................17 2.5 Display Setup ......................... 18 2.5.1 Multiple Cable System ..................18 2.5.2 Display Setup Data....................
- Page 5 PAL-AT Operating Manual Response to Alarms ................33 3.1 Decisions ........................33 3.1.1 Locations ......................33 3.2 Alarm Conditions ......................33 3.2.1 Fault ........................33 3.2.2 Break Alarm ....................... 33 3.2.3 Leak Alarm ......................33 3.3 Leak Analysis ........................33 3.3.1 First Leak ......................
- Page 6 PAL-AT Operating Manual 6.6.1 Sensing Cable and Probe Requirements ............47 6.6.2 Assign Output Relays ..................47 6.6.3 Display Output Relay Assignments ..............47 6.6.4 Change Output Relay Assignments ..............48 PAL-AT Setup Record ................49 Warranty Registration ................51...
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Page 7: Introduction
LCD01: PAL-AT LEAK DETECTION SYSTEM, VX.XX PERMALERT ESP INC. “TIME” “DATE” "VX.XX" is the firmware version PAL-AT is using. The "DATE" is displayed with 4 digits for the year in this initial display. The message is displayed during a 5 minute warm-up period and then PAL-AT... -
Page 8: Contrast Adjustment
Detailed Installation Instructions are provided in the PAL-AT Installation Manual (PA 1000). 1.2.4 Manual Updates Refer to the PermAlert (Perma-Pipe) web site, www.permalert.com, for the latest version of this manual. The leak detection information can be found by selecting: Product Catalog---Industry Applications---Leak Detection. -
Page 9: Operating Pal-At
PAL-AT Operating Manual Operating PAL-AT PAL-AT lists the primary functions in the Main Menu. The LCD displays two menu functions at a time. Read the display carefully. PAL-AT prompts for the information it needs. Press the # key to step through the Main Menu and display the next two menu functions. -
Page 10: Baseline Check
2 Operating PAL-AT 2.1.3 Baseline Check The next message is: LCD05: STANDARD RESOLUTION, BASELINE = ?? ENTER * FOR MENU, # TO CONTINUE The baseline is a number between 25 and 35. If the unit displays a value outside this range it shows a hardware failure. - Page 11 PAL-AT Operating Manual Figure 2.1.3B: AT20C and AT50C Component Layout Figure 2.1.3C: AT20K Component Layout...
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Page 12: Hydrocarbon Liquids
2 Operating PAL-AT 2.1.4 Hydrocarbon Liquids Next PAL-AT displays the message: LCD06: CABLE ? MONITORING HYDROCARBONS? (FUELS) ENTER # FOR YES, * FOR NO Press # if any section of the sensor cable (not probes) is monitoring for hydrocarbon liquids (gas, oil, fuel, solvents, etc.). -
Page 13: Enter Cable Distance
PAL-AT Operating Manual important to include this piece of jumper cable in the sensor string, even if the first location to be monitored may be less than 50 feet from PAL-AT. For the first section, press 3 and #, if type JMP-U jumper cable is used. -
Page 14: End Of Sensor String
Probes are a special case. Probes can be connected to a PAL-AT sensor string anywhere along its length. PermAlert ESP supplies probes with 10 feet of jumper cable attached to the input and 50 feet to the output of the probe integrator. The probe section length is 60 feet for calculating the distance to the end of the section. -
Page 15: Multiple Cable System
PAL-AT Operating Manual 2.2.1 Multiple Cable System If the system has multiple cable cards, the first message is: LCD15: ENTER CABLE NUMBER (1-?), THEN # : FOR REFERENCE * TO EXIT Other models skip this message. 2.2.2 Reference Process If there is no fault on the cable, PAL-AT does not allow taking a map, except map 1, and displays: LCD16: CABLE ? NO FAULT - REFERENCE NOT ALLOWED ENTER # OR * TO RETURN TO MAIN MENU... -
Page 16: Verify
2 Operating PAL-AT LCD22: CHECK CONTINUITY TO END OF CABLE ? * TO RETURN TO MENU, # CONTINUITY OK First check the continuity to the end of the cable to make sure all cable is connected and a length of cable was not removed for drying and then not replaced (see Section 5.2). -
Page 17: Verify Process
PAL-AT Operating Manual 2.3.3 Verify Process The next message PAL-AT displays is: LCD28: VERIFYING CABLE ? When the process is completed, PAL-AT displays the following message if the current system matches the selected map: LCD29: CABLE ? MATCHES MAP ? , END AT ???? FEET MONITOR CABLE ? # FOR YES, * FOR NO This means the cable is in the same condition now as when the reference map was made. -
Page 18: Monitor
2 Operating PAL-AT a cable is causing repeated alarms. If a cable is put on/off-line for monitoring, the action is recorded in the archive history of events (see Section 2.6). Monitor Press 4 and # from the Main Menu to put PAL-AT into monitor mode. The display alternates several messages when PAL-AT is in this mode. -
Page 19: Alarm Silence Feature
PAL-AT Operating Manual LCD41: CABLE ? DRYING AT ???? FEET # TO SILENCE ALARM “TIME” “DATE” LCD42: BREAK DETECTED IN CABLE ? AT ???? FEET # TO SILENCE ALARM “TIME” “DATE” LCD43: SHORT DETECTED IN CABLE ? AT ???? FEET # TO SILENCE ALARM “TIME”... -
Page 20: Display Setup
2 Operating PAL-AT LCD47: MONITORING NOT ENABLED ENTER # OR * TO RETURN TO MENU When the master password is issued, select the security function by pressing 8 and # from the Main Menu. The display is: LCD48: ENTER SECURITY PASSWORD * TO CLEAR, # TO ACCEPT ENTRY Enter the master password and press #. -
Page 21: Display Setup Data
PAL-AT Operating Manual 2.5.2 Display Setup Data If a password at level 250 is entered, the next message is: LCD51: HEREAFTER ENTER # TO SHOW NEXT SECTION OR * TO ABORT OR REENTER SETUP DATA Otherwise it is: LCD52: HEREAFTER ENTER # TO SHOW NEXT SECTION ENTER * TO RETURN TO MENU Press * at any time to exit display setup and return to the Main Menu. -
Page 22: Add Sections
Contact PermAlert for details. A form is provided in this manual that can be used to keep a permanent record of the setup table. A copy of the completed form should be kept in a safe location, in addition to the one in this manual. - Page 23 PAL-AT Operating Manual LCD62: POWER LOST AT “TIME” ON “DATE”, RESTORED This entry is made when a unit is turned on, recording when power was lost. LCD63: CABLE “A” SETUP, WITH LENGTH OF “B” FEET This entry is made when a sensor string is setup, "A" is the cable number and "B" is the length of the sensor string.
- Page 24 2 Operating PAL-AT LCD71: SHORT DETECTED IN CABLE “A” AT “B” FEET This entry is made when a short is detected. LCD72: BREAK DETECTED IN CABLE “A” AT “B” FEET This entry is made when a break is detected. LCD73: FAULT IN FIRST 50 FEET OF CABLE “A”...
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Page 25: History Messages - The Second Line
PAL-AT Operating Manual LCD80: AUTOMATIC MONITORING ENABLED IN / “YEAR” This entry is made when automatic monitoring is enabled using the "master" password. LCD81: AUTOMATIC MONITORING DISABLED IN / “YEAR” This entry is made when automatic monitoring is disabled using the "master" password. LCD82: TIME RESET TO “TIME”, DATE TO “DATE”... -
Page 26: Passwords
2 Operating PAL-AT LCD87: ENTER MINUTES (00-59), THEN # LCD88: ENTER MONTH (01-12), THEN # LCD89: ENTER DATE (01-31), THEN # LCD90: ENTER YEAR (00-99), THEN # Note: PAL-AT uses the 24-hour (military) time display. Passwords PAL-AT has several security levels. The following table shows the menu functions and the required security level: Security Level Required... -
Page 27: Delete Password
PAL-AT Operating Manual LCD91: ENTER SECURITY PASSWORD * TO CLEAR, # TO ACCEPT ENTRY Enter a level 250 password and #. Then press 8 and # again. The message is: LCD92: ENTER PASSWORD TO ADD/DELETE MUST BE 6 TO 10 CHARACTERS LONG Enter 6 to 10 digits and #. -
Page 28: Special Functions
2 Operating PAL-AT Special Functions Several special system functions are listed in a separate menu. (1) To Set Relay Normal States (2) To Display Special Archives (3) To Set Special Options - Alarm silence - Automapping - Averaging Rate – Noise Factor - Power Save Delay (4) To Set Baud Rate (5) To Set System Identification (6) To Enter Phone Number (see PALCOM Operating Manual) -
Page 29: Display Special Archives
PAL-AT Operating Manual The relays are permanently set to alarm if the system is not in monitor mode. If automatic monitoring is disabled for all installed cards, the relays will activate. 2.9.2 Display Special Archives PAL-AT has a special archive that records the first time the system is enabled for automatic monitoring and the first time each cable card is set for monitoring. -
Page 30: Set Averaging Rate
15 seconds to monitor 5,000 feet of cable. Contact PermAlert for more information if you think the PAL-AT requires the special sampling rate. To change the sampling rate, enter 5 for 50 Hz or 6 for 60 Hz interference at the following message:... -
Page 31: Communications Options
The PAL-AT can communicate with an external computer via RS-232 port B. Refer to the “Communications Options for PAL-AT” data sheet for details. PermAlert also offers Windows-based PALCOM Communication software packages that can monitor 254 PAL-AT systems. In addition, software can be written by the customer to read the display and enter keypad data from a remote computer. -
Page 32: Set System Identification
2 Operating PAL-AT The message is: LCD108: MODEM BAUD RATE NOW ???? ENTER * FOR NEXT RATE, # WHEN CORRECT If the displayed rate (????) is correct, press #. If not, press * for a different rate until the proper rate is displayed. -
Page 33: Multiple Cable System
63 at 110 feet drop back down to 32 and finally rise to 63 at the end. The important point is the leak typically starts where the values start dropping quickly to 20 or less. Contact PermAlert for additional information on data analysis. -
Page 34: Data Points
2 Operating PAL-AT 2.9.5.4 Data Points The Data Points feature displays each data point from the selected starting distance. The starting distance may be a trouble area located with Low / High Locations. When 2 # is entered at display LCD111, the following message is displayed: LCD116: CABLE ?, ENTER STARTING DISTANCE, THEN #... -
Page 35: Response To Alarms
PAL-AT Operating Manual Response to Alarms Decisions There are several alarm conditions: Leak, drying, short, break, probe activate/reset and fault. In addition, location information is given. PAL-AT tells you about changes in the system from the baseline established when you made the reference map. It requires an intelligent decision by you to decide if the alarm condition is a serious problem or an acceptable deviation from the baseline. -
Page 36: First Leak
3 Response to Alarms maps. Do this for all entries that were made since the first alarm was recorded in the same general area as the present leak. 3.3.1 First Leak The alarm message shows which map is used for monitoring. If this is the first leak in a particular area, you should take a new map and continue monitoring to see if there is another alarm. -
Page 37: Recommended Inspection
G or H do not have a replaceable battery. If the clock resets after a power loss, send the card to PermAlert for repair. It is the user’s responsibility to contact PermAlert ESP for instructions to return the processor card for battery replacement. -
Page 38: Optional Internal Modem
4 Recommended Inspection Figure 4.3A: Processor Card Details, Revision G Figure 4.3B: Processor Card Details, Revision H 4.3.1 Optional Internal Modem An optional internal modem is available for the version H processor card (see Figure 4.3B). The modem is usually factory installed but can be installed in the field. First turn off the PAL-AT and remove the processor card. -
Page 39: Installation & Troubleshooting
The ohmmeter reading should be less than 10 ohms/1000' of cable. If it is not, check the jumper wire, test lead connections, and repeat the test. If the problem persists, contact the PermAlert Field Service Department for assistance. Figure 5.2A: Cable Tests... -
Page 40: Cable Card Sensitivity Adjustment
5 Installation and Troubleshooting Cable Card Sensitivity Adjustment Cable cards can be identified by the serial number printed on a label on the card and the revision number printed on the board. There are 6 diagnostic LED's along the top edge of the card to aid in troubleshooting (refer to Figure 5.3A). -
Page 41: Cable Card Connector Tests
It should be 50-60 ohms with the cable card installed. If the reading is outside this range, replace the cable card connector assembly. A special tool is needed to remove the coaxial connector from the motherboard (Part# 8068400). Contact PermAlert ESP Field Service for details. Figure 5.4A Cable Card Connector Assembly... -
Page 42: U.l., C-U.l. & Fmrc
Class 1, Division 1, Groups C and D locations. The PAL-AT can be supplied with a C- UL listing mark for Canadian applications. Troubleshooting Guide The following guide lists the most-frequently encountered problems. If you are unable to resolve a problem, contact PermAlert ESP Field Technical Assistance at, 847-966-2190 or e-mail at, service@permalert.com. SYMPTOM POSSIBLE PROBLEM... -
Page 43: Restrictions & Limitations
PAL-AT Operating Manual SYMPTOM POSSIBLE PROBLEM ACTION NO END FOUND Jumper cable is disconnected at the BNC Check that the center pin of the BNC is connector. fully seated. FAULT IN 1 50 FEET Connector in the first 50 feet of the system is Perform insulation and continuity tests faulty. -
Page 44: Sensor Cables
1. The maximum number of probes that can be connected to the PAL-AT is normally 10 for each cable card. Consult PermAlert for exceptions to this limit. 2. The operating temperature range of the PHL probe is 0°F to 90°F. All other probes have a range of 0°F to 180°F. -
Page 45: Output Relay System
PAL-AT Operating Manual Output Relay System The PAL-AT Output Relay System consists of an electronic microprocessor-based interface and control panel that monitors a PAL-AT Leak Detection/Location System and controls from 4 to 60, 10-amp 250- volt rated relays. The output relays are available in groups of 4. There are four PAL-AT Output Relay System components available: Model Description... - Page 46 6 Output Relay System Figure 6.1A - AT-ORC Output Relay Controller Wiring Diagram Figure 6.1B – AT-ORx4 Output Relay Panel Wiring Diagram...
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Page 47: Relay Module Configuration
PAL-AT Operating Manual Figure 6.1C: AT-ORx1 Output Relay Panel Wiring Diagram Relay Module Configuration Each added AT-RM relay module must be configured before operating the system. Two jumpers are set to select the numbers assigned to the 4 relays (1-4, 5-8, etc.). Refer to Figure 6.1A and locate the jumpers in the lower right corner. -
Page 48: Internal Diagnostic Indicators
6 Output Relay System Jumper Setting vs. Relay Number Assignment Relay Bank 33-60 / 1-32 Relay Number Assignment Select 1-32 Relay 5 Relay 6 Relay 7 Relay 8 1-32 Relay 9 Relay 10 Relay 11 Relay 12 1-32 Relay 13 Relay 14 Relay 15 Relay 16... -
Page 49: Rs-232 Port Interface Cable Installation
PAL-AT Operating Manual RS-232 Port Interface Cable Installation The AT-ORC Output Relay Controller is provided with an RS-232 communications port and an interface cable. The 9 pin male D connector on the interface cable connects to the Output Relay Controller RS- 232 port (see Figure 6.1A). -
Page 50: Change Output Relay Assignments
6 Output Relay System When # is pressed, the relay data can be viewed for the first section: LCD120: CABLE ?, SECTION ?? ACTIVATES RELAY ?? * FOR MENU, # FOR NEXT SECTION In a similar manner, the data for each section is displayed. The PAL-AT returns to the Main Menu after all sections are displayed. -
Page 51: Pal-At Setup Record
PAL-AT Operating Manual PAL-AT Setup Record DATE: ______________ MODEL #: ____________________________________________________ SERIAL #: ____________________________________________________ LOCATION: ___________________________________________________ CABLE DATA SECTION DATA Section # Length Counts Type Length Counts... - Page 52 7 PAL-AT Setup Record CABLE DATA SECTION DATA Section # Length Counts Type Length Counts...
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Page 53: Warranty Registration
The master password is required by PAL-AT before it will automatically monitor a system. Contact the PermAlert ESP Warranty Department at 847/966-2190 to register your warranty. The warranty personnel will require model number and serial number of the PAL-AT. - Page 54 Notes...