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SCP SCIENCE DigiPREP, Руководство по обслуживанию


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KeyPad

Version 1.0

SCP SCIENCE

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ELECTRICAL SCHEMATIC – DIGIPREP HT

Digi

PREP Jr, MS, LS, HP

Notes:

*LS Heater 230 

VAC 50/60 HZ 2655W

** No voltage selector switch for LS models

***  DigiPROBE Dongle is used only when no DigiPROBE is connected

Содержание DigiPREP

Страница 1: ...Providing Innovative Solutions to Analytical Chemists DigiPREP KeyPad Controller Service Manual www scpscience com ...

Страница 2: ... 61010 1 and the IEC 61010 2 010 2nd edition 2001 02 Canada International 21800 Avenue Clark Graham Baie d Urfé QC H9X 4B6 Tel 1 514 457 0701 Fax 1 514 457 4499 USA 348 Route 11 Champlain NY 12919 4816 Tel 1 800 361 6820 Fax 1 800 253 5549 North America only Europe 12 Avenue du Québec Bâtiment I 2 Silic 642 91965 Courtaboeuf CEDEX France Tel 33 0 1 69 18 71 17 Fax 33 0 1 60 92 05 67 China C1102 Ro...

Страница 3: ...een 13 System screen 13 OPERATING PARAMETERS 14 Run screen 14 Calibration screen 14 SAFETY MESSAGES 15 Possible Safety Messages 15 Preventing Safety Messages 16 Disabling Safety Messages 16 DigiPROBE ERROR MESSAGES 17 DIAGNOSTIC TEST PROCEDURE 17 CLEANING 17 SPECIFICATIONS KEYPAD 18 Electrical 18 Environmental 18 KEYPAD SERVICE MANUAL KEYPAD GENERAL DESCRIPTION 20 LIGHT EMITTING DIODE LCD 21 KEYPA...

Страница 4: ...NS 37 SAFETY INFORMATION 37 INSTALLATION 38 Unpacking 38 SETTING UP 38 OPERATION WITH PROBES 39 DigiPROBE 39 DigiSET 39 BLOCK DESCRIPTION 40 CLEANING 41 Cleaning of Minor Surface Spills 41 Cleaning of Digestion Wells 41 Cleaning Melted Plastic from Wells 41 Cleaning of a Major Spill 41 SPECIFICATIONS 42 Environmental 42 Electrical 42 ACCESSORIES 43 OPTIONS 44 ELECTRICAL SCHEMATIC 45 DigiPREP HT IN...

Страница 5: ...rical 59 ACCESORIES AND OPTIONS 60 ELECTRICAL SCHEMATIC 61 JR MS HP HT SERVICE MANUAL DigiPREP JR BLOCK DESCRIPTION 62 DigiPREP JR Spare Part List 63 DigiPREP MS BLOCK DESCRIPTION 65 DigiPREP MS Spare Part List 66 DigiPREP HP BLOCK DESCRIPTION 67 DigiPREP HT BLOCK DESCRIPTION 69 DigiPREP HT Spare Part List 70 DigiPREP LS BLOCK DESCRIPTION 71 MISCELLANEOUS PART LIST 72 ELECTRICAL SCHEMATICS KEYPAD ...

Страница 6: ...with Dongle but not with DigiPROBE 81 Heater Does Not Heat Up Temperature Displays but Does Not Change 81 Heater Cannot Achieve Desired Temperature But ContinuouslyTries to Ramp 81 Heater Cannot Achieve Desired Temperature Stops Heating Too Early 82 Heater is Overshooting Temperature 82 Controller Temperature Fluctuates Between Impossible Values 82 Controller Temperature Fluctuates Around Set Poin...

Страница 7: ...plete the repairs will be chargeable to the distributor at SCP SCIENCE s current rates Parts required in the post warranty period will be charged according to the prevailing Service Parts Price List less distributor s discount Transport charges for the instrument to be returned are the responsibility of the distributor c Post Warranty Period SCP SCIENCE agrees to supply required service parts at p...

Страница 8: ...____________________________ ___________________________________________ ___________________________________________ ___________________________________________ ___________________________________________ 3 Power Supply The Fuses are fine Power cables are correctly inserted see page 26 Comments and observations ___________________________________________ ___________________________________________...

Страница 9: ... is at the appropriate voltage Verify that the 180o C NC Thermal Switch is closed Check resistance of heater according to the DigiBLOCK size Verify the 450o C Thermostat is closed for HT 3 The block is heating very slowly Ensure that the voltage selector switch of the heating block is at the correct position Ensure correct block has been selected 4 No display and no back light Check fuse F1 Check ...

Страница 10: ... with the DigiPREP system in order to maintain good laboratory practice Do not place DigiPREP controller in a fume hood Do not place the DigiPREP controller on a surface containing flammable material DigiPREP block should be operated in a fume hood DigiPREP controller must be plugged into a three prong grounded outlet WARRANTY SCP SCIENCE warrants this product free from defect in workmanship and m...

Страница 11: ...ge If the instrument has been damaged in shipping contact the freight carrier to report damage and to file a damage report Also contact the SCP SCIENCE service department to report damage and to request service information see page 88 for contact information If damage is noted do not attempt to operate the instrument 1 Power light LED 2 LCD screen 3 KeyPad 4 Connection port for umbilical cord to b...

Страница 12: ... Arrow Key Press to move the cursor to the left Right Arrow Key Press to move the cursor to the right INSTRUMENT OPERATION The keypad controller uses different screens to access dfferent functions Use the arrow keys to move the cursor on the screen and press enter to accept your selection A or symbol displayed next to an item indicates that the current screen contains more items than can be shown ...

Страница 13: ...to change back En English FR French DE German IT Italian ES Spanish NL Dutch JP Japanese romanized Next select which DigiPREP system you are using Your selection determines the correct set of PID values that the controller will use to ensure precise control of the temperature of the block SYSTEM SCREEN JR DigiPREP JR 24 position ambient to 180o C MS DigiPREP MS 48 position ambient to 180o C LS Dig...

Страница 14: ...splayed to the nearest 0 1 of a degree and the time is displayed in minutes and seconds An asterisk will appear occasionally in the upper right corner of the display This indicates that the heating element is firing If AL is displayed in the bottom right corner of the screen the alarm is set to sound when the remaining time runs out Pressing the alarm key will toggle the alarm off You can also use...

Страница 15: ...negative value hold down the left arrow key until the correct value is reached Press enter to save the values and exit the screen To return to the factory calibration or to clear all data from the keypad choose the number of calibration points as 0 and press enter to make the selection SAFETY MESSAGES During operation the keypad controller monitors the system to detect potential problems If there ...

Страница 16: ...ossible Causes The DigiPROBE is being moved in and out of the sample repeatedly The DigiPROBE is being moved in and out of the holding well repeatedly The sample has evaporated PREVENTING SAFETY MESSAGES To avoid receiving safety messages keep the following tips in mind When using the DigiPROBE place the tip of the PROBE about 1 mm from the bottom of the digestion vessel Use watch glasses whenever...

Страница 17: ...tact the service department 1 Shut off power to DigiPREP keypad 2 Ensure that DigiPROBE is installed and inserted into either the holding well or the sample If you are not using DigiPROBE ensure that the dongle is connected 3 Ensure that the umbilical cable is connected properly to the block and the controller 4 Turn the power back on 5 Is the blue LED light on YES NO 6 Is the LCD backlight lit up...

Страница 18: ...rt according to EIP A EIP B EIP C is below the limit requirement in SJ T11363 2006 X Indicates that the toxic or hazardous substance contained in all the homogenous materials for this part according to EIP A EIP B EIP C is above the limit requirement in SJ T11363 2006 ENVIRONMENTAL Relative humidity 30 to 80 Altitude Up to 2000m Installation Category ll Pollution Degree 2 Ambient operating temp 5 ...

Страница 19: ...ut 5 Panel Mount Connector 7 Pin Male 6 Panel Mount Connector 2 Pin Male 7 Flat Head Nylon Screw 6 32 X 1 8 Voltage Selector Switch 9 Flat Washer Nylon 6 Screw 10 LED 11 Nylon Nut 6 32 12 Stud 6 32 13 Brass Insert 6 Screw 14 LCD 15 Fish Paper 16 Nylon Stand off 6 32 x 17 Bottom Kydex 18 Feet 19 Pan Phillips Head Tapping Screw 8 x ...

Страница 20: ...sed of a keypad to enter information regarding set point temperature and controlling time to a CPU which controls the DigiPREP block Jr MS LS HP or HT FIGURE 5 GENERAL KEYPAD BLOCK DIAGRAM Host CPU Module LCD Display PC DTE RS 232 COM Debug Update RTD Input Circuit A D UIPS Module Regulators and Voltage Reference Heater Drive Module Heating Block Buzzer Alarm optional 100 260Vac 115 230 Vac 12Vdc ...

Страница 21: ...positive to negative DIGITAL SCREEN LED IS MALFUNCTIONING With the system powered up verify that the following message is appearing for 5 seconds on the LCD screen If the startup message is not appearing or strange characters are displayed replace the LCD monitor After 5 seconds the user should see the following If not remove the bottom plate by removing the 4 screws holding the feet in place and ...

Страница 22: ...ld feel a soft click upon pressing a button ROW4 GND GND GND GND R49 R23 R50 R22 R51 R21 R52 R20 C33 C32 C31 C30 5Vdc 10K 10K 10K 10K 100 100 100 100 1nF 1nF 1nF 1nF R16 100 R17 100 R19 100 R18 100 RJ7 ROW3 RJ6 ROW2 ROW1 RJ5 RJ4 1 4 7 Shift Left 2 5 8 0 3 6 9 Shift Right Alarm Temperature Time Enter COL4 GND C29 1nF COL1 GND C26 1nF COL2 GND C27 1nF COL3 GND C28 1nF FIGURE 8 KEYPAD ELECTRONIC DIAG...

Страница 23: ...a time and verify if they execute correctly the commands below ALARM A small AL should appear on the LCD display TARGET TEMPERATURE The target temperature menu should appear TARGET TIME The target time menu should appear KEYPAD DIAGNOSTIC SECTION To identify if the trouble is caused due to the keypad buttons or a faulty circuit verify the impedance of the buttons that do not respond to the command...

Страница 24: ...eyPad controller It is designated as a Universal Input Power Supply UIPS since it can operate within 100 260 VAC to output 12Vdc 0 8A No selector switch is needed for 115 VAC or 230 VAC input supply The 12Vdc voltage is then regulated to supply 5 0Vdc Digital and 50Vdc AVCC analog to the main circuits of the system FIGURE 10 AC DC CONVERTER ...

Страница 25: ...re about 160 Vdc for 120 Vac input supply or 300 Vdc for 240 Vac input supply If the voltage is much lower measure the voltage across the cathode and anode of diodes D3 D4 D5 and D6 You should read about 63Vdc for 120 Vac and 125 Vdc for 240 Vac If not replace the faulty diodes Place the negative lead of the multimeter on TP2 which is the ground test point Place the positive lead of the multimeter...

Страница 26: ...gend 1 Test point TP1 2 Diodes D3 D4 D5 and D6 3 Test point TP1GND 4 U1 5 U3 pin 1 6 Test point TP4 5 0Vdc supply 7 Test point TP2 Digital ground testpoint 8 Test point TP3 12Vdc supply Legend 1 Fuse 15A 2 Fuse 15A 3 AC Filter FIGURE 13 DC POWER AND REGULATORS 2 1 3 5 4 10 6 7 8 9 ...

Страница 27: ...Pad Version 1 0 SCP SCIENCE 27 HEATER DRIVE SECTION This circuit controls the heater inside all types of DigiPREP blocks It consists of an opto isolated triac driven circuit FIGURE 14 HEATER DRIVE CIRCUIT ...

Страница 28: ...fore opening the bottom plate verify with a multimeter that the COM2 dongle is shorted If not replace the part with a new one If the dongle is ok remove the bottom by removing the 4 screws that hold the feet in place Check if the DigiSET cable see figure 15 for position is fully inserted FIGURE 15 DIGISET CONNECTOR LOCATION Legend DigiSET connector INTERNAL WIRING CONNECTION VERIFICATION After rem...

Страница 29: ...8 for position is flashing Be very careful not to touch any components inside the KeyPad as it is running The block temperature must be lower than the set point temperature for the LED to flash If the LED is not on if possible use and oscilloscope and verify if there is a pulsing signal on the trigger input TP8 coming from the CPU If there is no signal on TP8 please refer to the CPU section for mo...

Страница 30: ...pin and NEUTRAL see figure 19 Make sure that there is 120V 230V AC toggling or not Also refer to figure 20 for an example of what an be seen on a scope if the control is toggling Make sure that the heating block temperature is lower than the set point temperature if you want the Triac to toggle If the triac output remains low while it should toggle as shown in figure 20 replace the triac If you re...

Страница 31: ...ned below A D POWER AND CONNECTIONS Disconnect J9 from the board then power up the controller With the negative lead of a multimeter on TP6 and its positive lead on the test points below see figure 22 you should read the following measurements ANALOG CIRCUIT MEASUREMENTS WITH J9 OPEN Test Point Required Value TP7 5V TP11 5V TP10 1V TP12 0V Now on J9 short pins 2 and 3 short pins 4 and 5 and insert...

Страница 32: ... are properly connected Reconnect cable J9 to its header and verify if the system is heating up accordingly and the block temperature feedback is correct CPU SECTION The CPU section is basically the microcontroler PIC18F8722 U6 see figure 23 for location FIGURE 23 CPU AND REFERENCE VOLTAGES LOCATION Legend 1 Pin 3 of J1 2 Pin 1 of J1 3 Via to pin 27 of U6 4 Via to pin 26 of U6 5 Via to pin 25 of U...

Страница 33: ...and its possible lead on the via connected to pd C25 2 you should read 5Vdc With the negative lead of a multimeter on the via connected to pad C25 1 and its positive lead on the via connected to pin U6 27 you should read 5Vdc If those values are less than 4 8V replace the KeyPad PCB CPU UNSTABLE If CPU is resetting by itself check pin 9 of U6 WIth the negative lead of a multimeter on pin 3 of J1 a...

Страница 34: ...Providing Innovative Solutions to Analytical Chemists DIGESTION BLOCKS DigiPREP Jr MS LS HP Instruction Manual I i M l www scpscience com ...

Страница 35: ... a temperature range of ambient to 180 C DigiPREP blocks require a DigiPREP controller keypad colour touch screen or PC Classic sold sepa rately for operation DigiPREP blocks are designed to hold DigiTUBE sample digestion vessels Optional accessories include DigiPROBE used to monitor sample and or block temperature and DigiSET PROBE used to monitor and shut off the heating system at a set sample v...

Страница 36: ...asize procedures or conditions that may be misinterpreted or overlooked and to clarify potentially confusing situations WARRANTY SCP SCIENCE warrants this product free from defect in workmanship and materials for one 1 year from date of purchase Should the unit malfunction call SCP SCIENCES s service department see page 92 or your local distributor and a service representative will instruct you on...

Страница 37: ...ned to be lifted from the bottom only Ensure that the controller is disconnected prior to moving the block Do not attempt to lift the block by the top white trim as damage may result DigiPREP blocks are elevated temperature digestion systems with exposed hot surfaces Be careful around the instrument when it is in operation SAFETY INFORMATION A minimum of safety considerations must be followed when...

Страница 38: ...tempt to operate the instrument SETTING UP Place the DigiPREP block in a fume hood The controller must not be placed in the fume hood With the controller s power switch in the off position do the following Verify that the voltage selector at the back of the DigiPREP block is properly set Typically 115 for North America and 230 for Europe Connect the block s umbilical cable to the controller Discon...

Страница 39: ...erature place the DigiPROBE in the storage well located at the rear right corner of the graphite block Ensure that there is a glass liner catalogue number 010 500 041 in the well The control sample should be a typical digestion sample The tip of the DigiPROBE should be approximately 1 mm from the bottom of the digestion vessel Serious temperature overrun may occur during digestion if the DigiPROBE...

Страница 40: ...connects to controller 3 DigiPROBE storage well 4 Voltage selector switch 115V or 230V 5 DigiPROBE dongle 4 pin male 6 24 position DigiTUBE rack MS 2 LS 3 JR 1 DigiPREP JR MS LS HP BLOCK DESCRIPTION DigiPREP Jr DigiPREP MS DigiPREP LS DigiPREP HP DigiPREP MS DigiPREP LS 1 2 4 3 5 6 ...

Страница 41: ...heck the bottom for an aluminium key 1 If your DigiPREP block has an aluminium key Insert the aluminium key into one of the slots located on the bottom of the unit beside the rubber feet Gently push the aluminium key into the slot until the white top ring begins to lift Repeat the process for the three remaining slots and return the aluminium key to the base of the unit If the aluminium key is mis...

Страница 42: ...Housing o o o o o o Graphite Block o o o o o o RTD probe o o o o o o Over temperature sen sor o o o o o o Heater o o o o o o Umbilical Cord wiring o o o o o o Voltage Selector o o o o o o Fasteners o o o o o o O Indicates that the toxic or hazardous substance contained in all the homogenous materials for this part according to EIP A EIP B EIP C is below X Indicates that the toxic or hazardous subs...

Страница 43: ...ion rack for DigiPREP Jr 50ml 010 505 023 24 position 2 tier rack for 100 ml borosilicate glass tubes 010 505 052 DigiPREP MS start up kit 010 505 066 DigiPREP Jr start up kit ACCESSORIES 50ML Catalogue Number Description 010 500 014 DigiSET 115V 230 V 010 500 031 DigiVAC top 010 500 033 DigiVAC blower unit 010 500 035 DigiPROBE holder for DigiTUBEs 010 500 039 DigiPREP Fume Hood 010 500 049 DigiP...

Страница 44: ...0ml 12 Pos 115V 230V 010 501 215 Start up Kit for 100ml DigiPREP Jr 010 501 230 DigiPREP MS 100ml 30 Pos 115V 230V 010 501 235 Start up Kit for 100ml DigiPREP MS 010 501 250 DigiPREP LS 100ml 230v 010 501 255 Start up Kit for 100ml DigiPREP LS 010 501 261 DigiTUBE 100ml with RackLock pk300 010 501 262 DigiTUBE 100ml with RackLock No Caps pk300 010 501 263 DigiTUBE 100ml with no RackLock pk300 010 ...

Страница 45: ... 0 0 DUWK URXQG 5HG KLWH 0 0 LJL352 RQJOH LV XVHG RQO ZKHQ QR LJL352 RQWUROOHU LJL352 RQJOH W QWHUQDO 57 6WUDLQ 5HOLHI 9DF 9ROWDJH 6HOHFWRU 6ZLWFK 0 0 URXSHG 1RW 8VHG 1RW 8VHG 0 0 QG 1R 9ROWDJH 6HOHFWRU 6ZLWFK IRU 6 PRGHO ELECTRICAL SCHEMATIC DIGIPREP HT DigiPREP Jr MS LS HP Notes LS Heater 230 VAC 50 60 HZ 2655W No voltage selector switch for LS models DigiPROBE Dongle is used only when no DigiPR...

Страница 46: ...SAMPLE DIGESTION SYSTEMS Providing Innovative Solutions to Analytical Chemists DigiPREP HT Instruction Manual www scpscience com ...

Страница 47: ...ontrolled by a Colour Touch Screen or KeyPad controller One should refer to the controllermanualforthecorrectsetupanditsoperations Itisimportantthatthecontrollerbesettothe HT block setting from the UTILITIES screen of the controller in use This will ensure optimal heating control of the block DigiPREP HT typically comes with a manifold insert rack and related accessories for performing high temper...

Страница 48: ... that may be misinterpreted or overlooked and to clarify potentially confusing situations WARRANTY SCP SCIENCE warrants this product free from defect in workmanship and materials for one 1 year from date of purchase Should the unit malfunction call SCP SCIENCES s service department see page 92 or your local distributor and a service representative will instruct you on how to proceed There are no u...

Страница 49: ...r is disconnected prior to moving the system Do not at tempt to lift the system by the top white trim or the U channel as damage may result DigiPREP HT is an elevated temperature digestion system with exposed hot surfaces Be careful around the instrument when it is in operation DigiPREP HT digestion block should be operated in a fully functional fume hood SAFETY INFORMATION A minimum of safety con...

Страница 50: ...ntents of shipping cartons to verify that all items listed are included Please notify SCP SCIENCE or your local distributor of any discrepancies Inspect the products for any shipping damage If the instrument has been damaged in shipping contact the freight carrier to report damage and to file a damage report Also contact the SCP SCIENCE service department to report damage and to request service in...

Страница 51: ...sert and tighten two thumb screws through the skin and into the thread holes of the aluminum U support Insert the right and left rack support panels The short 90 degree bend goes toward the back of the system The cut outs should be placed facing up as shown in the picture Use 2 thumb screws to hold each of the panels in place Set the block proportion of the DigiPREP HT with the back sitting toward...

Страница 52: ... are supplied for the HT 100 40 position As shown in picture The HT 100 10 and HT 250 10 position Teflon manifolds are connected directly to the black exhaust tubing The Teflon manifold may have 1 2 or 4 drain tube connections The end of the long black drain tube connects to the water jet supplied with system or the Universal Fume Scrubber UFS option The drip tray is shown in place It may be store...

Страница 53: ...iPREP HT block temperature independently of the DigiPREP Controller used The dual PROBE contains two separate RTDs in one sheath one sensor is connected through the umbilical cord to the DigiPREP controller to monitor and control the block temperature The second RTD PROBE is connected to the 2 pin connector on the back of the DigiPREP HT system to allow for the monitoring of the precision of block...

Страница 54: ...ector in and flush at bottom 4 Use fingers to push top snug to lip on Dual Zone insert rack 5 Place fingers through holes in top of rack to reach heat deflector 1 If evaporation times are too long Heat Deflector shields may be installed option product number 010 520 032 They push into place as shown in the following instructions ...

Страница 55: ...172 90 173 26 173 63 174 00 174 37 174 74 175 10 175 47 200 175 84 176 21 176 57 176 94 177 31 177 68 178 04 178 41 178 78 179 14 210 179 51 179 88 180 24 180 61 180 94 181 34 181 71 182 07 182 44 182 80 220 183 17 183 53 183 90 184 26 184 63 184 99 185 36 185 72 186 09 186 45 230 186 82 187 18 187 54 187 91 188 28 188 63 189 00 189 36 189 72 190 09 240 190 45 190 81 191 18 191 54 191 90 192 26 19...

Страница 56: ...Time to Temperature at least 25 minutes 2nd Step When programming the additional ramp and soak cycles the Time to Temperature will depend on the last temperature reached i e the previous setpoint This becomes more complex as the heating rates for the DigiPREP HT depend on both the Setpoint temperature and the ΔT Two equations are needed Equation 1 ΔT Tfinal Tinitial Equation 2 Time to Temperature ...

Страница 57: ...llows Suitable boiling chips or the supplied boiling rods should be used to prevent bumping during the digestion procedure Step 1 Set point Temperature is 150o C Time to Temperature 45 minutes Time at Temperature is 60 minutes Step 2 Set Point Temperature is 380o C Time to temperature is 45 minutes Time at Temperature is 30 minutes If the sample contains water the water must be evaporated off prio...

Страница 58: ...or spill If a solution has run down around and below the graphite digestion block turn off the system and unplug DigiPREP HT from the power source Allow the system to cool before proceeding further DigiPREP HT must be disassembled cleaned and thoroughly dried prior to running again Please consult the service departmentfor help if required In order to access under the block first remove the exhaust...

Страница 59: ... ed Biphenyle PBB Polybrominated Diphenyl Ether PBDE Housing o o o o o o SiC Block o o o o o o RTD probe o o o o o o Over temperature sensor o o o o o o O Indicates that the toxic or hazardous substance contained in all the homogenous materials for this part according to EIP A EIP B EIP C is below the limit requirement in SJ T11363 2006 X Indicates that the toxic or hazardous substance contained i...

Страница 60: ... 010 520 322 DigiPREP Quartz Ball Condensor for 100ml Digestion tubes Catalogue Number Description 010 520 030 DigiPREP HT 250 Teflon coated Insert Rack 010 520 031 Digestion Tube borosilicate uncalibrated 010 520 032 Heat Deflector for DigiPREP HT Insert Rack 010 520 087 Digestion Tube Quartz uncalibrated 010 520 131 DigestionTube Calibrated at 50ml and 100ml 010 520 133 Digestion tube borosilica...

Страница 61: ...KeyPad Version 1 0 SCP SCIENCE 61 ELECTRICAL SCHEMATIC DigiPREP HT ...

Страница 62: ...s circuit breaker and receives the female end of the power cord 4 DigiSET Connector Connection port for DigiSET DigiSET will automatically shut off the digestion block when a pre set sample volume is reached DigiSET dongle must be installed to run DigiPREP Jr without the DigiSET option 5 DigiPREP Controller DigiPREP Jr is designed to be used with DigiPREP KeyPad or Touch Screen controller Sold sep...

Страница 63: ...ness umbilical cord Jr HP MS HT BOTTOM OF DigiPREP JR 1 M180 Screws to secure feet all DigiPREP systems 2 M173 Rubber feet all DigiPREP systems 3 C584 Label DigiPROBE 4 E346 RTD panel connector 5 S104 Harness umbilical cord Jr HP MS HT 6 M109 Teflon hole plugs TOP VIEW EXPOSED 1 P200 CPVC Corian top support 2 C176 RTD 3 S129 Housing for Jr unit 4 E346 RTD panel connector 5 S104 Harness umbilical c...

Страница 64: ...ensor 6 J111 Insulation Jr 10 pc set Other miscellaneous parts A352 Aluminium plate Secures bottom insulation C161 Hot label for Corian top possible hot sur faces P340 White Corian top S121 HEATER HARNESS JR 1 E353 Heater 115V 230V 48 Lead UL Jr 2 E106 Thermal protection relay 3 E239 Voltage selector 4 P149 Teflon tape 0 003 x 7 5 x 11 5 G103 Graphite block grade HLM Jr coated 1 2 3 4 5 ...

Страница 65: ...ord Receptacle On Off switch contains circuit breaker and receives the female end of the power cord 4 DigiSET Connector Connection port for DigiSET DigiSET will automatically shut off the digestion block when a pre set sample volume is reached DigiSET dongle must be installed to run DigiPREP MS without the DigiSET option 5 DigiPREP Controller DigiPREP MS is designed to be used with DigiPREP KeyPad...

Страница 66: ...re feet all DigiPREP systems 2 M173 Rubber feet all DigiPREP systems 3 C584 Label DigiPROBE 4 E346 RTD panel connector 5 S104 Harness umbilical cord Jr HP MS HT 6 M109 Teflon hole plugs Other miscellaneous parts MS A191 Aluminium plate Secures bottom insulation C161 Hot label for Corian top Informs users of possible hot surfaces P149 White Corian top Fits MS HP classic DigiPREP systems J112 Insula...

Страница 67: ... SCIENCE 67 S125 HEATER HARNESS MS HP 1 E391 Heater 115V 230V MS Classic HP 2 E106 Thermal protection relay 3 E239 Voltage selector 4 P147 Teflon tape 0 003 x 13 25 x 17 25 5 G102 Graphite block grade HLM MS coated 1 2 3 4 5 ...

Страница 68: ...ord Receptacle On Off switch contains circuit breaker and receives the female end of the power cord 4 DigiSET Connector Connection port for DigiSET DigiSET will automatically shut off the digestion block when a pre set sample volume is reached DigiSET dongle must be installed to run DigiPREP MS without the DigiSET option 5 DigiPREP Controller DigiPREP MS is designed to be used with DigiPREP KeyPad...

Страница 69: ...een or KeyPad controller Sold separately 4 Umbilical Cable to connect to controller 5 Glass Digestion Tubes 40 100 ml glass tubes or 20 250 ml glass tubes are included with the DigiPREP HT Old format DigiBLOCK umbilical cords are only 7 pins The footprint size is approximately the same as that of a DigiPREP Dongle If the instrument has 9 pins on the umbilical cord please refer to figure NOTE ...

Страница 70: ...90 degree bend E667 Heater for HT Used in both 100 and 250 models G502 Graphite Block 250ml HT only G501 Graphite Block 100ml HT only P616 White Corian TopFits both 250 and 100 HT models S127 House for HT Used in both 250 and 100 HT models C398 DigiPREP HT Label for front of instrument S128 Heater pan Assembly Used in both 250 and 100 HT models 1 ...

Страница 71: ...Cord Switch 15A Switch and line filter combo S183 Umbilical Harness All DigiBLOCK Models E106 Thermo Protection Relay Protects from over temperature G108 Graphite LS block coated Teflon coated LS block M180 Screws to Secure Feet All blocks except COD M173Rubber feet for all blocks All blocks exceptCOD E357 Heater 220V Heater for DigiPREP LS J123 Insulation Set LS Only A106 Aluminum Plate LS Only E...

Страница 72: ...nductor 3 3 uH radial RL622 3R3K RC E607 Inductor 25 mH min 120 K 200KHz BU16 2530R7BL E175 Resistor 33 CFR 25JB 33R E311 Resistor 4 7K CFR 12JB 4K7 E176 Resistor 100 1 2W CFR 50JB 100R E174 Resistor 47 1 4 W CFR 25JB 47R Exxx Trimpot 5 K 1 2 W PV36W501C01B00 E608 Resistor 360 1 2 W CFR 50JB 360R E609 Resistor 75 1 2 W CFR 50JB 75R E611 TRIAC 600V 25A to 220AB BTA24 600BW E199 Transformer 28V A 1 ...

Страница 73: ...KeyPad Version 1 0 SCP SCIENCE 73 HEATER VERIFICATION ...

Страница 74: ...uminium T Continue to step 2 If you don t find an Aluminium T The Corian ring is designed to lift off the top of the instrument manually Pull up gently on each corner until the top lifts off and continue to Removing the graphite block 2 Insert the key into one of the slots located beside the rubber feet 3 Push the aluminium T into the slot until the Corian ring begins to lift 4 Repeat process for ...

Страница 75: ...3 16 inch 4 5mm Hex key remove the 4 screws and washers that secure the graphite block to the instrument housing 3 Gently lift the Kydex skin from the graphite block Unscrew the voltage selector switch so that you have more freedom of movement when performing maintenance on the block DigiPREP TESTS AND REPLACEMENT PROCEDURES VOLTAGE SELECTOR SWITCH E239 The voltage selector switch has 6 connection...

Страница 76: ...unted onto the side of the block with two Phillips head screws There is no polarity to this device simply connect one end to the wire that runs to pin 2 of the voltage selector switch and the other end to the wire that runs to pin 7 of the umbilical cord W137 Old format Instruments with the W137 installed are serial numbers JR46040231 and earlier MS46040120 and earlier and HP03050060 and earlier N...

Страница 77: ...d and each pin individually No pins should return continuity 4 Measure between pin 4 EX and pin 6 M This should return continuity 5 Measure between pin 1 EX and pin 3 M This should return continuity 6 Measure between pin 7 L and pin 9 N This should return a resistance based on the following table MODEL VOLTAGE SELECTOR SWITCH POSITION RESISTANCE DigiPREP Jr 115V 230V 18 2 71 2 DigiPREP MS 115V 230...

Страница 78: ...s Celsius the internal RTD C178 returns a value of approximately 108 ohms To measure the value of the internal RTD insert the 4 pin DigiPREP dongle into the block s port For new models measure between pin 1 and pin 4 of the umbilical cord For older models measure between pin 6 and pin 5 of the umbilical cord If you cannot read a resistance visually inspect the wires running from the DigiPREP dongl...

Страница 79: ...g defect The above picture is of damage caused by an acid spill that has leaked under the graphite block and eaten away at the heater Notice the white acid residue Damage such as this is not covered under warranty as it is caused by an acid spill or sample boil over or not cleaning a major spill promptly The above picture is of damage caused by an acid spill that has leaked under the graphite bloc...

Страница 80: ...een the Teflon sheet and the heater by planing a smooth but rigid piece of material across the surface 6 Reconnect the wiring of the new heater to the wires originally cut in section 1 there is no polarity to the black wires as they are AC Use the following table to connect the correct colors to the correct locations 1a White wire Connects to neutral of the heater pad 1b Parallel connection Betwee...

Страница 81: ... persists service on the controller is needed SYSTEM FUNCTIONAL WITH DONGLE BUT NOT WITH DigiPROBE 1 Perform the umbilical cord test on page 85 and ensure pins 2 and 4 are not connected to the umbilical cord This problem is typically caused by having the dongle port wired up in reverse 2 Perform the DigiPROBE test on page 89 HEATER DOES NOT HEAT UP TEMPERATURE DISPLAYS BUT DOES NOT CHANGE 1 Ensure...

Страница 82: ... page 84 CONTROLLER TEMPERATURE FLUCTUATES BETWEEN IMPOSSIBLE VALUES 1 Ensure the dongle is completely fastened to the DigiPREP digestion block 2 Visually inspect the dongle receptacle on the block for damage 3 Perform the internal RTD test on page 86 4 Perform umbilical cord tests on page 85 CONTROLLER TEMPERATURE FLUCTUATES AROUND SET POINT 1 Ensure the dongle is completely fastened to the DigiP...

Страница 83: ...KeyPad Version 1 0 SCP SCIENCE 83 ...

Страница 84: ...SCP SCIENCE 84 KeyPad Version 1 0 ...

Страница 85: ...KeyPad Version 1 0 SCP SCIENCE 85 ...

Страница 86: ...SCP SCIENCE 86 KeyPad Version 1 0 NOTES ...

Страница 87: ...KeyPad Version 1 0 SCP SCIENCE 87 NOTES ...

Страница 88: ...science com Within North America Outside North America Europe China Tel 1 800 361 6820 Toll free Tel 1 514 457 0701 Tel 33 0 1 69 18 71 17 Fax 1 800 253 5549 Toll free Fax 1 514 457 4499 Fax 33 0 1 60 92 05 67 Tel 86 10 51905671 Fax 86 10 51905672 ...

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