Computrac MAX-1000 User's Manual - Arizona Instrument

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14 TROUBLE DIAGNOSISSYMPTOM DIAGNOSIS REMEDYAnswer always zero Temperature too low Raise setpointNo heatSee symptom belowSample too smallIncrease sampleAnswers vary too much Sample too small Reduce sampleSamples not uniformGrind sampleSample particles too largeGrind sampleBlank display Contrast controls not set Adjust contrastNo powerCheck power cordconnectionsMicroprocessor failureOpen front, press resetBacklight connector disconnected ReconnectHeat will not turn off Set wrong Adjust ending criteriaCircuit board failureCall AZIMoistures too high Temperature set too high Lower tempBent sample panUse new panDirty sample panUse new panDebris in balance gapsCleanDirty heater assemblyClean heater assemblyMoistures too low Temperature too low Increase tempSample too smallIncrease sampleSample too largeDecrease sampleSample needs spreadingSpreadMoisture never stops increasing Other volatiles Try lower temperatureBalance driftingRun drift checkNo heat Voltage selection wrong Check power module atrear of instrument, set tocorrect voltageWiring failure in heater circuitCall AZI CustomerServiceHeater failureCall AZI CustomerServiceDoor sensor failureCheck display for LIDOPEN message whenopenTemperature setpoint too lowRaise temperature aboveroom ambient or standbytemperature62
SYMPTOM DIAGNOSIS REMEDYNo power to instrument Fuse blown Remove and test fusePower switch offCheck switch positionPower cord disconnectedConfirm power cordseatingOutlet not poweredTest circuit with lampNo weight reading displayed Balance not initialized Turn power off, then on,wait 15 secondsErratic results Poor AC ground Ensure grounding fromcase ground to earthgroundDirt in chamber/pan supportClean unitDisplay erratic Unit cold (near freezing) Allow to warm-upUnit resets and alarms Lid open for an extended period Turn switch off and onduring a testof time during testUNDERLOAD when “START” Sample pan or pan support Install pan and/or support,pressed not in place "Quit" test and press“START” again<strong>Instrument</strong> won't tare Test chamber temperature Allow system to stabilizefluctuates/changesDirt in test chamberCleanor under pan support63
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USER MANUALCOMPUTRAC ® MAX ® 1000
Page 5 and 6:
PACKING and SHIPPING INSTRUCTIONSTh
Page 7 and 8:
Figure 1 MAX-1000 PACKING DIAGRAMvi
Page 9 and 10:
TABLE of CONTENTSPACKING and SHIPPI
Page 11 and 12:
12 PERFORMANCE VERIFICATION .......
Page 13 and 14:
1 INTRODUCTIONThe Arizona Instrumen
Page 15 and 16:
Location SelectionSelect a location
Page 17 and 18:
2.3.2 Obtain a sample of test mater
Page 19 and 20:
3.4 CONTROLS3.4.1 The front panel c
Page 21 and 22:
3.6.4 After “START” has been pr
Page 23 and 24: 4.1 INSTALLATION OF BALANCE PAN SUP
Page 25 and 26: 4.2 AC POWER CONNECTIONFigure 7 MAX
Page 27 and 28: 4.5 NITROGEN PURGE SETUP4.5.1 Some
Page 29 and 30: 4.7.4 Connect tubing from the conne
Page 31 and 32: 4.10 ENABLE PRINTER OUTPUT4.10.1 Wi
Page 33 and 34: 5 MENU SYSTEM: INSTRUMENT CONFIGURA
Page 35 and 36: 6 “MEMRY” KEY: MEMORY START SEL
Page 37 and 38: 7.1.1 To select a menu item, move t
Page 39 and 40: Test TemperatureThe current setpoin
Page 41 and 42: Start Temp ControlThe START TEMP CO
Page 43 and 44: Some samples contain more than one
Page 45 and 46: The PAN TARE OPTIONS offers the use
Page 47 and 48: ! RESULT DISPLAY OPTIONSTest result
Page 49 and 50: 7.4 CALIBRATION MENU7.4.1 CALIBRATE
Page 51 and 52: connected (IBM or Epson). Select th
Page 53 and 54: tags entered by the operator to ide
Page 55 and 56: ! SYRINGE TESTThis function is usef
Page 57 and 58: 8 “PARAM” KEY: TEMPORARILY CHAN
Page 59 and 60: 9 MISCELLANEOUS MENU MESSAGES9.1 CO
Page 61 and 62: 10.1.4 The final portion of the cur
Page 63 and 64: Figure 54 MOISTURE VS. TEMPERATURE
Page 65 and 66: 11.2.2 The sample should be added e
Page 67 and 68: 12 PERFORMANCE VERIFICATIONPeriodic
Page 69 and 70: eliable results, use a high quality
Page 71 and 72: 13 ROUTINE MAINTENANCEThe MAX-1000
Page 73: 13.3 SAMPLE PAN SUPPORTThe sample p
Page 77 and 78: TEMPERATURE CIRCUITProbable cause:A
Page 79 and 80: FeatureSpecificationTest DisplayInt
Page 81 and 82: 18 APPENDIX A18.1 PARAMETER DEVELOP
Page 83 and 84: PARAMETER DOCUMENTATION:To ensure o
Page 85 and 86: If smaller standard deviations are
Page 87 and 88: 21 MAINTENANCE CONTRACTArizona Inst
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Computrac MAX-1000 User's Manual - Arizona Instrument

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