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DXF-200 Getting Started Guide

Page 16

CAUTION: Dewar LN

2

tank minimum 50 litters capacity. Maximum 22 psi (1.5 bar) supply pres-

sure. Pressure exceeding 22 psi will damage the instrument.

MISE EN GARDE: Réservoir Dewar LN2 d'une capacité minimale de 50 litres. Pression d'alimenta-
tion maximale de 22 psi (1,5 bar). Une pression supérieure à 22 psi endommagera l'instrument.

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Содержание DISCOVERY XENON FLASH

Страница 1: ...n Getting Started Guide Revision A Issued September 2020...

Страница 2: ...ts trademarks copyrights or other intellectual property TA Instruments Operating Software as well as Module Data Analysis and Utility Software and their asso ciated manuals and Help are proprietary an...

Страница 3: ...ual Supplement Please click the TA Manual Supplement link to access the following important information supplemental to this Getting Started Guide TA Instruments Trademarks TA Instruments Patents Othe...

Страница 4: ...ur protection Please heed the warning labels and take the necessary precautions when dealing with these areas This Get ting Started Guide contains cautions and warnings that must be followed for your...

Страница 5: ...en cas d utilisation contraire aux indications du manuel la protection offerte par l quipement peut tre alt r e WARNING Always unplug the instrument before performing any maintenance AVERTISSEMENT D b...

Страница 6: ...de l instrument source peuvent tre assez chaudes pour provoquer un malaise au contact de la peau pendant l analyse d un chantillon Si vous effectuez un essai basse temp rature le froid peut galement...

Страница 7: ...m 17 Choosing a Location 18 In 18 On 18 Near 18 Away from 18 Moving the Instrument 19 Connecting the Environmental Module to the Pulse Source Module 20 DXF Back Panel 22 Connecting the Environmental M...

Страница 8: ...taining the DXF EM 40 General Cleaning Practices 40 Recommended Cleaning Supplies 41 Cleaning Maintenance Schedule 41 Maintenance Procedures 42 Clean the Solid State Detector Pins 42 Clean the Light P...

Страница 9: ...story of the rear face is recorded through high speed data acquisition from a solid state pins sensor with very fast thermal response and thermal diffusivity is determined from the time dependent ther...

Страница 10: ...ration effectively harnesses the power of a Xenon flash tube and with the aid of proprietary wave guides delivers it to the sample inside the Environmental Module The DXF produces a maximum pulse widt...

Страница 11: ...hlamp is safe to fire POWER When the flashlamp 12 VDC power supply is ON the green POWER LED lights up INTERLOCK This function is not used CHARGE The flashlamp controller has 4 control states The CHAR...

Страница 12: ...temperature out side the acceptable range an alarm is triggered and the OVER TEMP red LED will light up If the interlock ON LED is enabled it will be disabled OPTICAL When the internal interlocks for...

Страница 13: ...D will light up ON INTERLOCK When prompted by the operating software this switch is pressed to enable the temperature control of the furnace If all the electronic checks are correct the switch s integ...

Страница 14: ...perature control of the sample operation in air or inert gas The EM also includes a two sample holder supporting a variety of sample sizes Adapters are available for smaller cylindrical and or square...

Страница 15: ...wall outlets on the same circuit and make sure that the mains assigned do not also supply power to noise generating equipment nearby such as motors welders transformers etc System supply voltage 198 2...

Страница 16: ...capacity Maximum 22 psi 1 5 bar supply pres sure Pressure exceeding 22 psi will damage the instrument MISE EN GARDE R servoir Dewar LN2 d une capacit minimale de 50 litres Pression d alimenta tion max...

Страница 17: ...onnecting the Environmental Module to Pulse Source Module Setting up system communication with the controller Connecting the utilities It is strongly recommended that you have your DXF system installe...

Страница 18: ...l vibrations NOTE Do not place equipment against walls or cabinets that might impede air flow Leave at least 7 5 cm 3 in clearance between the back of the instrument and any objects CAUTION An indepen...

Страница 19: ...la terre jusqu aux prises dans lesquelles l ordinateur est branch Moving the Instrument Lifting the DXF should always be done with two people 1 With each person standing on either side of the DXF pla...

Страница 20: ...the image below and then install the sealing foam Figure 5 Reflector and sealing foam 3 Place the Environmental Module on top of the DXF so that they are stacked make sure to align the 4 pins on the b...

Страница 21: ...ROUND wire must be provided through the power hook up Improper grounding may cause severe damage for which the supplier will not accept responsibility All power strips must be fully grounded and carry...

Страница 22: ...mmunication between the DXF and the Solid State Detector Assembly USB Cable Provides flash control USB1 Cable Provides data acquisition TEMPERATURE CONTROLLER COMMUNICATION Cable Provides communicatio...

Страница 23: ...200 Getting Started Guide Page 23 Figure 8 DXF back panel connections POWER ENTRY MODULE USB Cable LED indicators USB1 Cable J102 SOLID STATE DETECTOR Cable TEMPERATURE CONTROLLER COMMUNICATION Cable...

Страница 24: ...head plate on the EM to the J102 port on the back of the DXF 2 Connect the TEMPERATURE SENSORS cable from the side of the EM to the port on the top of the DXF 3 Connect the HEATER POWER cable from th...

Страница 25: ...om the back of the DXF to the controller 3 Connect the USB1 cable from the back of the DXF to the controller 4 Connect the monitor cable to the monitor port on the computer 5 Connect the temperature c...

Страница 26: ...be fully grounded and carry the ground through to the sockets into which the computer is plugged MISE EN GARDE Un fil de masse lourd et ind pendant doit tre fourni via le raccordement lec trique Une m...

Страница 27: ...d coolant line to the LN2 OUTLET see Figure 3 fitting and connect the other end to a hood or vent Connecting the Gas Lines 1 Connect 1 8 tubing to the PURGE GAS INLET Optional tee off this line to a f...

Страница 28: ...e sample and closing the EM Evacuating the system and setting the purge gas flow rate Creating or choosing the test procedure and entering sample and instrument information through the instrument cont...

Страница 29: ...sequence the instrument user interface appears and the keypad buttons are lit this indicates that the instrument is ready for use Shutting Down the DXF System Before you decide to power down your syst...

Страница 30: ...uare of the sample thickness Uncertainty in the sample thickness value due to rough or not completely flat surfaces will result in uncertainty error in the thermal diffusivity determination It is ther...

Страница 31: ...d with vacuum sputtering of a gold silver nickel or platinum layer with 1 m thickness This coating is then over coated using an aerosol spray coating of graphite Please note that In all cases the coat...

Страница 32: ...ing a heat gun gently warm the samples 3 Hold the aerosol can of graphite spray approximately 8 10 inches from the samples Using a single fluent motion spray the exposed surfaces from left to right 4...

Страница 33: ...ector Figure 13 Swing the locking arm away from the Detector WARNING Cartridges will be hot Use caution when loading and unloading samples Check the furnace temperature on the front panel 60 C and bel...

Страница 34: ...lid State Detector away from the sample area 5 Swing the locking arm back so that it rests against the side of the Solid State Detector holding it in place Figure 15 Locking arm holding the Solid Stat...

Страница 35: ...the sample holder remove them If using 1 25 4 mm O D samples remove the sample holder Figure 17 1 2 12 7 mm O D sample holder cover 8 With tweezers carefully place the sample into the sample holder Fi...

Страница 36: ...top of the sample chamber making sure that the tip of the pins reaches the center of the sample Figure 20 Pins 11 Move the locking arm back into place aligning the locking arm with the groove in the...

Страница 37: ...Guide Page 37 Preparing the Instrument Evacuating the System All are equipped with purge capabilities Back fill with Purge Gas Open the needle valve and allow the gas to flow inside of the furnace fo...

Страница 38: ...sample and instrument information through the instrument control software Consult online help for experimental instructions 1 To open the software double click the FlashLine icon on the computer desk...

Страница 39: ...help for details on entering test parameters in the Test Information window Figure 23 Test Information window Stopping an Experiment If for some reason you need to discontinue the experiment you can...

Страница 40: ...de TA Instruments que la m thode propos e n endommagera pas l instrument General Cleaning Practices Use protective eye glasses Use finger coats or gloves Always hold optical components mirrors lenses...

Страница 41: ...easure only thermal diffusivity are more tolerant with contamination of the optics than tests that measure diffusivity and specific heat For only diffusivity multiply with 3 the number of tests below...

Страница 42: ...s important because they must make good contact with the surface of the sample to obtain accurate results If the pins are not making good contact or if the tips are not the correct shape see Figure 27...

Страница 43: ...ip of each pin Slowly and carefully smooth out any rough edges or points 6 Put the Detector back in place locking the locking arm Clean the Light Pipe Assembly NOTE The sample is directly above the Xe...

Страница 44: ...debris that is on the surface of the light pipe Clean all outer surfaces of the light pipe using a lint free optical grade cloth and high purity acetone A small nozzle vacuum may also be used to clean...

Страница 45: ...hick 853142 901 Thermographite Reference 25 4 mm OD x 3 175 mm thick 853143 901 Stainless Steel Reference 12 7 mm OD x 1 58 mm thick 853144 901 Stainless Steel Reference 25 4 mm OD x 1 58 mm thick 853...

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