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MREL GROUP OF COMPANIES LIMITED

1555 Sydenham Road Kingston, Ontario K7L 4V4 Canada

T: +1-613-545-0466 F: +1-613-542-8029 E: [email protected] www.mrel.com

Operations Manual

Edition 5.4

Содержание DATA TRAP II

Страница 1: ...MREL GROUP OF COMPANIES LIMITED 1555 Sydenham Road Kingston Ontario K7L 4V4 Canada T 1 613 545 0466 F 1 613 542 8029 E blasting mrel com www mrel com Operations Manual Edition 5 4...

Страница 2: ...urpose The Customer assumes the entire risk as to the results and performance of the product MREL is committed to product innovation accordingly product may undergo specification improvements without...

Страница 3: ...BNC Adapters 13 3 1 5 Daisy Chain Cable 14 3 2 LED Display 14 3 3 DataTrap II Internal Rechargeable Battery 16 3 4 Testing The DataTrap II Power Status 16 3 5 Recharging the DataTrap II Data VOD Reco...

Страница 4: ...I Setup Procedure For Recording Voltage Signals 44 6 5 Utilizing The External Trigger 45 Chapter 7 Strain Gauge Upgrade 47 7 1 Introduction 48 7 2 Ensuring That All Components Hardware Have Been Recei...

Страница 5: ...T 1 613 545 0466 F 1 613 542 8029 www mrel com 1 Chapter 1 Getting Started...

Страница 6: ...eived All of the steps detailed in this Chapter should be completed before the Operator goes into the field to conduct a VOD test 1 Ensure that all DataTrap II components have been received and are av...

Страница 7: ...T 1 613 545 0466 F 1 613 542 8029 www mrel com 3 Chapter 2 Introduction...

Страница 8: ...recorded data in the DataTrap II Data VOD Recorder This allows the DataTrap II Data VOD Recorder to record for relatively long periods 6 seconds on one channel when recording at a rate of 10 MHz The m...

Страница 9: ...able air blast pressure transducers Measurement of cross blasthole pressures using carbon composition resistors and or commercially available tourmaline gauges Measurement of temperatures using thermo...

Страница 10: ...minimum booster size for any explosive by measuring run up velocities in full scale blasting environments Measure the timing accuracy of detonators in full scale blasting environments Measure the effe...

Страница 11: ...T 1 613 545 0466 F 1 613 542 8029 www mrel com 7 Chapter 3 Hardware...

Страница 12: ...snow dust and similar harsh weather conditions As well the case offers resistance to high temperatures shocks and vibrations The DataTrap II Data VOD Recorders top panel is shown below MAIN CONTROL PA...

Страница 13: ...542 8029 www mrel com 9 POWER Button INFO Button STATUS Indicator ESC Button UP ARROW Button NEXT TEST Button STOP Button TRIG D Out of Range Indicators ENTER Button START Button and Indicator DOWN A...

Страница 14: ...be ended manually by pressing STOP To make the lights stop blinking press STOP ESC Button ENTER Button UP ARROW Button and DOWN ARROW Button The 4 buttons ENTER ESC UP and DOWN are used to view and ad...

Страница 15: ...active TTL high level for several seconds when the DataTrap II Data VOD Recorder has been triggered TRIG IN Connector BNC connector for the trigger wire if external triggering is used DC OUT Connector...

Страница 16: ...2 0 port is recommended USB 1 1 can be used but downloading data is much slower Be careful NOT to plug the Power Cable into the USB port SYNC IN and OUT Connectors The SYNC in and out ports are used...

Страница 17: ...corders non volatile memory The TRIG D light flashes slowly once all data from the test has been stored in the DataTrap II Data VOD Recorders memory Otherwise the light will remains off 3 1 2 Battery...

Страница 18: ...es the current option Processing the current option will do one of the following Take an immediate action such as changing the voltage range for a channel Act if the user confirms the choice such as e...

Страница 19: ...te Press Enter to choose current rate Length Shows length of time stored for that channel in seconds Read only press ESC to exit Recording Rate Chooses the rate Press Enter to choose current rate PreT...

Страница 20: ...the energy remaining in the battery as a percentage of the full charge 3 5 Recharging the DataTrap II Data VOD Recorder The procedure to recharge the DataTrap II Data VOD Recorder is as follows 1 With...

Страница 21: ...3 Connect the Cigarette Lighter Adapter Optional to complete the connection When the DataTrap II Data VOD Recorder is off it will charge in slow mode 1 to 2 per hour and the screen to the right will...

Страница 22: ...uration of a standard RG type coaxial cable where the high resistance wire is the central conductor and the braided shield acts as the return lead A dielectric material placed between the resistance w...

Страница 23: ...n break circuit using the DAS Data Acquisition Suite or the integrated LCD menu on the DataTrap II Data VOD Recorder panel Multiple Event Storage Adjustable by the operator to allow from 1 to 32 tests...

Страница 24: ...ing the DataTrap II Data VOD Recorder Software All Software operations are point and click The Software allows unlimited graphical zoom on graphs creation of annotated sub graphs The Software contains...

Страница 25: ...T 1 613 545 0466 F 1 613 542 8029 www mrel com 21 Chapter 4 Memory And Triggering...

Страница 26: ...calculate the Total Recording Time Pre trigger Time Post trigger Time is Total Recording Time seconds P of tests x of channels x recording rate Where P of points currently set up in the DataTrap II D...

Страница 27: ...length loaded in the blastholes and the recommended TRIG setting of 95 3 the graphs on the following pages show the lengths of PROBECABLE and PROBECABLE LR that must be consumed for the DataTrap II Da...

Страница 28: ...DataTrap II Operations Manual Edition 5 4 24...

Страница 29: ...T 1 613 545 0466 F 1 613 542 8029 www mrel com 25...

Страница 30: ...DataTrap II Operations Manual Edition 5 4 26...

Страница 31: ...T 1 613 545 0466 F 1 613 542 8029 www mrel com 27 Chapter 5 Recording VOD And Hole Deck Delay Times...

Страница 32: ...toring the continuous VOD profile along the entire length of an explosives column The DataTrap II Data VOD Recorder can measure the VOD of relatively short explosive samples such as explosive cartridg...

Страница 33: ...on the back of the DataTrap II Convenient BNC Adapters have been supplied with the DataTrap II Data VOD Recorder for this purpose The Adapters can be connected to the coaxial cable using the wire cut...

Страница 34: ...Product 1 06 01 Sample of Packaged Explosive VOD PROBEROD or VOD PROBEROD HS MREL Product 1 05 10 or 1 05 11 Detonator Blasting Machine See Figure 1 Place the RG 58 U Coaxial Cable beside the leads fr...

Страница 35: ...CABLE Unit Resistance multiplied by length If this is not the case then remove the length of PROBECABLE and reload another length into the hole 5 The hole can now be loaded with explosives and stemmin...

Страница 36: ...connection as shown above Twist the center conductors together Pull the shielding wires back along the cables and start taping from the cable to the end Figure 2 DataTrap II Data VOD Recorder MREL Pr...

Страница 37: ...a continuous circuit throughout the blast There are two common methods of lowering a doubled length of PROBECABLE in these holes The first and simplest method is to run the PROBECABLE through a wire l...

Страница 38: ...ectrical tape The connection should be shielding to shielding and center conductor to center conductor Ensure that the center conductor and the shielding connections do not touch each other It is a go...

Страница 39: ...VOD PROBECABLE Green MREL Product 1 05 05 VOD PROBECABLE LR Blue MREL Product 1 05 06 RG 58 U Coaxial Cable 101 m 333 ft MREL Product 1 06 01 BNC Connector Male Delay between each hole Blasting Machin...

Страница 40: ...0 MHz recording rate a DataTrap II Data VOD Recorder with standard memory utilizing 8 channels per test will record for a total of 800 ms per test if the Number of Tests 1 If this is insufficient time...

Страница 41: ...ate steadily The DataTrap II Data VOD Recorder then starts monitoring the test waiting for the trigger signal to set the zero time for collecting data Personnel can now vacate the DataTrap II Data VOD...

Страница 42: ...l resistance is less than 50 ohms The DataTrap II Data VOD Recorder is only calibrated to perform VOD tests between these two initial resistance values 50 3 000 ohms There are three reasons for the in...

Страница 43: ...In some data recording applications it may be desirable to have the DataTrap II Data VOD Recorder begin to record exactly when a specific event occurs For the specific event to start at time 0 on the...

Страница 44: ...per the settings of the DataTrap II Data VOD Recorder but time 0 on the graph will be the precise time when the Trigger Wire became shorted To prepare the test end of the duplex wire to wait for a BRE...

Страница 45: ...T 1 613 545 0466 F 1 613 542 8029 www mrel com 41 Chapter 6 Recording Voltage Signals From Gauges...

Страница 46: ...cross borehole propagation the PVDF transducers to measure detonation pressures various PCB gauges to measure blast over pressures as well as various types of thermocouples to measure temperatures The...

Страница 47: ...e entered in the DAS Data Acquisition Suite Software by the Operator to convert the voltage versus time graphs to graphs of engineering units versus time 4 Install the gauges 5 Connect the gauges to t...

Страница 48: ...Test and look for the OUT OF RANGE warning light indicators and If there is a warning light for a channel then the voltage being produced by one of the gauges is out of the voltage range set by Softw...

Страница 49: ...f the data to a computer is required If there are 1 or more tests remaining in the memory a The DataTrap II Data VOD Recorders Recording Parameters can be changed for subsequent tests by using the Sof...

Страница 50: ...DataTrap II Operations Manual Edition 5 4 46...

Страница 51: ...T 1 613 545 0466 F 1 613 542 8029 www mrel com 47 Chapter 7 Strain Gauge Upgrade...

Страница 52: ...the result in microStrains vs Time using the DAS Data Acquisition Suite software 7 2 Ensuring That All Components Hardware Have Been Received 1 DAS Data Acquisition Suite Software for Strain Gauge An...

Страница 53: ...n on the label Please confirm immediately after receiving Strain Gauge equipment that the correct Pre Amplifier units have been shipped 5 DataTrap II Data VOD Recorder Strain Signal Power Cable used t...

Страница 54: ...Data VOD Recorder Quantity 8 Hard sided case to house the Pre Amplifiers and cabling when it is not in use Quantity 1 Strain Gauge software to be used with the DataTrap II Data VOD Recorder for progra...

Страница 55: ...5 or 10 Volts can be used to allow later flexibility of use of channels in the field if other devices might be used on some channels If some channels are set as VOD make note of them The setting of e...

Страница 56: ...t turn it counter clockwise If the screw becomes hard to turn do not force it confirm that the Strain Gauge does not have a short or broken wire 6 If you have auto adjustable Pre Amplifiers see pictur...

Страница 57: ...T 1 613 545 0466 F 1 613 542 8029 www mrel com 53 Chapter 8 Contacting MREL for Technical Support...

Страница 58: ...L MREL Group of Companies Limited Blasting Instrumentation Team 1555 Sydenham Road Kingston Ontario K7L 4V4 Canada Toll Free Canada USA 1 877 544 MREL Tel 1 613 545 0466 Fax 1 613 542 8029 Email suppo...

Страница 59: ...T 1 613 545 0466 F 1 613 542 8029 www mrel com 55...

Страница 60: ...itted to product innovation accordingly product may undergo specification improvements without notice Copyright 2017 MREL Group of Companies Limited DataTrap II Data VOD Recorder DataTrap II Data VOD...

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