ALD-T Manual - Axiomsafety.com
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1. 1 Houston Texas 77060 Phone 281 528 0201 SENSITIVITY ADJUSTMENT Sensitivity adjustment should be done in the field on a situational basis Each ATAM will require adjustment to ensure proper operation in an alarm condition While Axiom Technologies can provide our customers with an ultrasonic signal generator for testing purposes we also recommend utilizing compressed air or inert gas for final verification A sensitivity adjustment switch fig 6 provides ten gain amplification adjustment settings Turning this switch clockwise with a small screwdriver will increase the gain in 1096 increments Final adjustments should be done with the following consideration Water saturation has a major effect on the ultrasound level produced during a blowout In situations where wells produce very wet gas the ATAM gain will need to be adjusted to a higher sensitivity In situations where the unit is deemed to sensitive perhaps due to unavoidable background noise the gain will need to be decreased accordingly LED BAR GRAPH Test mode only Switch position 4 fig 6 is used for testing With this switch is ON press SW1 Reset Button and release The Bar Graph LEDS fig 6 on the board are now used to indicate the level of the sound into the Microphone and the board does not transmit data Testing with the LED BAR GRAPH should be done with the ATAM door closed using the viewing window on the door to monitor registered frequencies Fig 6 ATAM G2. address is set by putting the switch in the ON position The code is based on a binary setting in which each of the three switches are assigned a value of 1 2 or 4 The total of all energized switch values is added to determine which alarm channel will be used For example Switch 1 On Alarm channel 1 Switch 2 ON Alarm channel 2 Switch 1 and 2 ON Alarm channel 3 Switch 4 ON Alarm channel 4 Switch 4 and 1 ON Alarm channel 5 Switch 4 and 2 ON Alarm channel 6 See example below Switch 4 2 and 1 ON Alarm channel 7 All switches OFF none used Alarm Address ID Configuration Test Mode Activate LED Bar Graph Transmitter Transmitter set to alarm set to test channel 6 mode FIELD INPUTS OUTPUTS Each ATAM can be used to wirelessly transmit external alarm signals using the Input Output terminals located above the battery module These consist of two open collector type inputs pull to ground each with a zener diode for monitoring wiring integrity The diode is located in an jumper assembly containing a BLUE and a WHITE wire which are shrink wrapped on one end Upon battery module installation the ATAM processor will search for these diodes and either activate these channels if found or ignore these channels if not The typical field wiring would consist of a 2 wire normally open circuit which uses a signal wire a ground wire and a
3. covered in the RECEIVER section of the user manual MAINTENANCE The ATAM requires little maintenance but a minimum of a monthly visual examination and testing is required to insure that the unit as well as the systems and devices associated with the safety shutdown are operating properly Periodic checks are required to verify that the external microphone is not blocked by accumulated foreign substances mud grease snow ice etc as this may adversely affect its performance Because of the changing nature of gas wells and associated components recalibration should be done on a well to well basis every 90 days minimum July 26 2012 11 Axiom Technologies Acoustic Monitor User s Manual 15711W Hardy Road Suite 1 Houston Texas 77060 Phone 281 528 0201 BATTERIES The batteries are expected to have a life of about 2 years before replacement is needed The battery life is dependent on the amount of wireless transmissions during that period of time The ATAM routinely reads battery voltages and provides warnings if the batteries need replacement Channel 8 on the receiver is used to indicate a low battery condition WARNING EXPLOSION HAZARD BATTERIES MUST ONLY BE CHANGED IN AN AREA KNOWN TO BE NON HAZARDOUS REPLACE BATTERY MODULE WITH AXIOM TECHNOLOGIES BATTERY PACK ONLY WARNING DO NOT ATTEMPT TO RECHARGE BATTERY MODULE AS THIS MAY TRIGGER AN UNSTABLE CONDITION WITHIN THE LITHIUM CELLS AND CAUSE AN EXPLOSION Note Whe
4. zener diode wired in parallel at the end device Polarity reversal of the diode will result in alarm White should always be wired to ground and blue always to the input signal The ATAM also has one pull to ground normally open output which does not require a zener diode July 26 2012 8 Axiom Technologies Acoustic Monitor User s Manual 15711W Hardy Road Suite 1 Houston Texas 77060 Phone 281 528 0201 OPERATION Any alarm from the MIC or either of the Field Inputs will cause the Transmitter to send alarm data The Alarm will be resent every 5 minutes as long as there is any alarm Anytime there is a change in the alarm state from On to Off the data will be sent Under normal conditions the green O K LED fig 5 will continuously flash once every second When the ATAM detects a level of ultrasound above the threshold parameters the DETECTED LED fig 5 will alternately flash every two seconds If a condition persists beyond the delay setting the XMIT fig 5 and ALARM LED fig 5 will repeatedly flash announcing that a wireless transmission has been sent to the receiver The ALARM LED will not stop flashing until the alarm condition goes away Fig 5 LED Placement decre x ey oro TE LED gt p LZ a T e o os ArT ee a DETECTED m DEL UT LED Bum LO DETECTED Eum ME o ALARN T m Mn E July 26 2012 9 Axiom Technologies Acoustic Monitor User s Manual 15711W Hardy Road Suite
5. Axiom Technologies Acoustic Monitor User s Manual 15711 W Hardy Road Suite 1 Houston Texas 77060 Phone 281 528 0201 Axiom Technologies L L C Telephone 281 931 0907 15711 W Hardy Road Suite 1 Fax 281 231 6562 Houston Texas 77060 www axiomsafety com ACOUSTIC MONITOR USER S MANUAL 15711 W Hardy Rd Suite 1 Houston Texas 77060 www axiomsafety com Axiom Technologies LLC Wireless Gas Leakage Acoustic Monitor TRANSMITTER OPERATION July 26 2012 1 Axiom Technologies Acoustic Monitor User s Manual 15711W Hardy Road Suite 1 Houston Texas 77060 Phone 281 528 0201 Table of Contents Introduction y oa eee NX AR EAR RR VOR errr rer 3 Gettin Started iu eoi diede ene oto eo E DUREE PR XERR UP e Rive FUERTE dw ade 4 CHOOSING a Location i nei ise enr poesie rero Sa E Pa e eo SA ERE asosa 5 6 Delay Dip Switches reor eren obra orna sacessecvedssesepoadiooncsGucileteices 7 Interruption Dip Switches e iicet vk n caen io eae ea nna ro np nra ope eae 7 Transmitter Configuration eeeeeeeeee eee eene nnn 8 Alarm Address ID ies ec deti eosae uenia ka seo k Re pdEbAqnbsK bod T OIN C rapid 8 o iip MC M 9 Sensitivity Adjustment eee eee tk eere eoe can P eere P EE deny cneaness 10 LED Bar Graphies coen eas eee eieus e ous oe Fg nea peux EN QUE HE dente diee c pasa 10 Last Alarm PushbUuttol uoeeo envie a e tsi eo neuen i aa ea
6. Axiom Technologies Acoustic Monitor User s Manual 15711W Hardy Road Suite 1 Houston Texas 77060 Phone 281 528 0201 CHOOSING A LOCATION Because of the compact nature of the ATAM and the unistrut on the back of the mounting plate it can be easily installed in likely problem areas Be aware in mounting the device that ultrasound travels very readily through metal Therefore the device should not be tightly anchored to any pipes which will have high frequency vibrations due to normal processes Either attach the Acoustic Monitor to non process structures or provide ultrasound deadening material between the mounting plate and the pipe Typical installation is within 10 15 feet of spots being monitored It is also important the ATAM be installed with an unobstructed view of the area prone to leaks and the receiver whenever possible Periodically check to verify that the external microphone is not blocked by accumulated foreign substances mud grease snow ice etc as this may adversely affect its performance Fig 2 Choke Nipple and Associated Piping Chokes and choke nipples can erode as a result of sand used in the fracturing process The same sand can also affect the elbows and crosses associated with flow line piping Careful consideration should be used when choosing a mounting place for the ATAM The monitor s limited range is an attribute when heavy construction is occurring nearby because most of the transient ultrasonic freque
7. eneral Layout Battery Pack Removed Sensitivity Adjustment Switch a E eom LED Bar 4 r3 a tio omo f Graph Test 2i 5 LI onmesR E Osi Si Oxnit RER 0s2 Au ORZA H ME gt AL hy D um MIU She nET xus ene oT a R4e Y 1 RYAN ow TEST TR o v s Address phen oN Switch ALARM 2 Hr Position 4 Mode Only July 26 2012 10 Axiom Technologies Acoustic Monitor User s Manual 15711W Hardy Road Suite 1 Houston Texas 77060 Phone 281 528 0201 LAST ALARM PUSHBUTTON fig 7 Each time this is pressed the board transmits data to the receiver You will press and hold while you are having a receiver board learn the RF ID code If you are learning an RF ID code on a receiver board the switch setting for the Alarm ID does not matter as long as Alarm Address switch position 4 is not ON SW1 MASTER RESET BUTTON fig 7 This is a hardware reset of the board and restarts the program It is also used to initiate the LED Bar Graph mode SWI Master Reset Switch Internal Microphone MILII add M10 DELAY OQ z e 5 dm Em A R3 ta 3 IM DRHE J RS 7 oe iz Y Vl FA r o perf osz OLIRANING cn rak Last Alarm TTF ae em Ea Ope TECTED ws d A Pushbutton BOP 101 1 ae Ot T a Ec NEM Drum Mes O ALARN si yer nd 2 ose E E D s E uENL 0k e ene fT 7 oym n R4e V T 5 or m ALARM hy e ALARM 2 PAIRING YOUR ATAM WITH A RECEIVER This is
8. i va 11 SWI Master Reset Button 2 eee ccdsesaectecstonccciesesssiuessck 11 Pairing With A Receiver cec eee eee esee esee eee soto eee eos eeoooe 11 Ma inte ance IPC RR 11 Batt rl s 2 2 eeococisicile eec esce a ore ERUCSDROSRe i aa 12 13 14 Specifications c eoe o hesterno nh dindesSansesededating CURR UKU DU Ra PNE TEE 14 July 26 2012 Axiom Technologies Acoustic Monitor User s Manual 15711W Hardy Road Suite 1 Houston Texas 77060 Phone 281 528 0201 INTRODUCTION The Axiom Technologies Wireless Acoustic Monitor ATAM was designed to provide a reliable cost effective means of detecting the discharge of gases under pressure within its close proximity Typically the monitor is installed near points prone to major leaks such as choke nipples or above ground bends in the flowline Because of the compact aluminum enclosure and wireless capability this monitor can be easily moved to a different area during workover or construction The transmitter is powered by a modular lithium battery pack which provides an estimated two year lifespan and is interchangeable with most Axiom Technologies safety equipment Leak detection is accomplished using an external ultrasound microphone connected to a microcontroller which filters out unwanted transient noise During persistent alarm conditions a wireless signal is sent to a receiver unit which can be connected to Axiom Technologies safety equipment a PLC te
9. imes necessary to ignore fluctuations For that reason the ATAM has four dip switches that allow the ultrasound level to fluctuate for a period of time without resetting the delay timer They are selectable individually or collectively in 2 1 2 or 4 second increments by switching to the ON position Fig 4 Dip Switch Configuration Battery Removed Interruption Dip Switches J R mm oF ka LS H 5 I pe FW 5 os S o do c28 i lt osz OLRRNING fi 13 Delay Dip TTF e oss ep TECTEO FS3 Switches R 3 F ST e T 0900910 imm d C993 E D oss aL enn 11 544 1 2 os a d l Li e INON 3H oss gj OK srin erT REN n orsi n p ALARM ALARM 2 Alarm Address LD Dip Switches Note that a 4 1 2 1 4 second interruption Interruption has been selected Switches Note that a 40 Delay second delay has Switches been selected July 26 2012 7 Axiom Technologies Acoustic Monitor User s Manual 15711 W Hardy Road Suite 1 Houston Texas 77060 Phone 281 528 0201 TRANSMITTER ALARM ADDRESS I D CONFIGURATION The transmitter board transmits data to the receiver board each time there is a change in an alarm condition and every 30 minutes as a service check The alarm condition will be indicated on the receiver board based on the ALARM Address ID fig 4 set on the transmitter board using three Alarm Address I D Dip Switches The Dip switch
10. lemetry system or any other devices capable of monitoring contact closure Additionally the ATAM can be used to transmit two additional field alarms This can be used to connect wired end devices and transmit them wirelessly with an estimated range of up to 1000 Up to seven transmitters can be paired with a single receiver using an ID code that is generated from over 30 000 possibilities further enhancing the security of each transmission July 26 2012 3 Axiom Technologies Acoustic Monitor User s Manual 15711W Hardy Road Suite 1 Houston Texas 77060 Phone 281 528 0201 GETTING STARTED Typically the Axiom Technologies Acoustic Monitor ATAM transmitter is shipped with the battery module installed in the storage position for shipment Open the transmitter box and remove the four nylon nuts holding the battery module rotate it 180 and carefully re install as shown in fig 1 of this manual The Axiom Technologies logo on the battery pack should be turned to the right side For further instruction see the BATTERY section of this manual The transmitter is now energized and the green O K LED is blinking every second fig 1 Fig 1 ATAM General Layout with Battery Axiom Technologies Logo Lithium Battery Pack Always avoid opening the enclosure in a dusty or rainy environment Batteries must only be changed or turned around in an area known to be non hazardous July 26 2012 4
11. n cleaning the ATAM do not use abrasives materials or fluids as they will cause damage and severely reduce system s reliability July 26 2012 12 Axiom Technologies Acoustic Monitor User s Manual 15711W Hardy Road Suite 1 Houston Texas 77060 Phone 281 528 0201 REPLACING THE BATTERY MODULE Open enclosure the battery module is shipped inside i Ed Unscrew the four 4 nylon spacers RENT WUN uerb Mon Hitt S UNA A M July 26 2012 13 Axiom Technologies Acoustic Monitor User s Manual 15711W Hardy Road Suite 1 Houston Texas 77060 Phone 281 528 0201 Align the battery module with threaded studs and push it in place gently NES The Axiom Technologies printing on the module is to be on the right Note Secure the battery module by reinstalling nylon spacers Verify the green LED blinks about once per second to confirm successful battery module installation ATAM ENVIRONMENTAL SPECIFICATIONS Temperature range 40 to 85 C Humidity range 0 To 95 max non condensing Altitude 2 000 m max Hazardous Area Classification This product is pending certification ATAM SENSOR RATINGS Sensors Trip Setting To be determined by customer during installation ATAM ELECTRICAL RATINGS Electrical Source Dual voltage lithium battery module3 6 amp 14 4 VDC Current consumption 285 mA max on 3 6VDC Circuits 435 mA on 14 4VDC Circuits July 26 2012 14
12. ncies will dissipate July 26 2012 5 Axiom Technologies 15711W Hardy Road Suite 1 Houston Texas 77060 Acoustic Monitor User s Manual Phone 281 528 0201 Fig 3 Wellhead choke and piping July 26 2012 For wellhead monitoring one suggested method of mounting the ATAM is ona pipe that is independent of the process The pipe should be slightly taller than the choke height Include a union close to ground level so that the pipe may be removed for workover or well maintenance Distance should be 10 15 feet away from the piping with the external MIC pointing directly at the problem area Use the built in unistrut bracket on the back of the ATAM to securely fasten it to the pipe via pipe clamps Axiom Technologies Acoustic Monitor User s Manual 15711 W Hardy Road Suite 1 Houston Texas 77060 Phone 281 528 0201 DELAY DIP SWITCHES fig 4 These adjust the amount of time that the alarm condition must remain in order to initiate a shutdown transmission They are selectable individually or collectively in 5 10 20 or 40 second increments by switching to the ON position INTERRUPTION DIP SWITCHES fig 4 An interruption is a short period of time when the ultrasound amplitude drops back below the alarm threshold It is common with water saturated gas to generate an erratic inconsistent ultrasound level during a pipe rupture Due to this transient nature of ultrasound frequencies it is somet
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