manualshive.com logo in svg

Air Techniques A/T2000 XR, Service Manual, Page: 22 / 60

Share
Download
Air Techniques A/T2000 XR Service Manual Download Page 22

22

Bath Temp

(°

F)

Thermistor

Resistance

60

7658

61

7642

62

7274

63

7089

64

6911

65

6739

66

6569

67

6406

68

6245

69

6092

Bath Temp

(°

F)

Thermistor

Resistance

70

5941

71

5797

72

5655

73

5516

74

5382

75

5251

76

5125

77

5000

78

4882

79

4765

Bath Temp

(°

F)

Thermistor

Resistance

80

4651

81

4540

82

4432

83

4328

84

4225

85

4126

86

4029

87

3936

88

3844

89

3755

Bath Temp

(°

F)

Thermistor

Resistance

90

3668

91

3583

92

3501

93

3420

94

3343

95

3266

96

3193

97

3120

98

3050

99

2982

Notes:

To accurately measure the thermistor’s resistance (Ohms), immerse the probe into a bath of water with a
known temperature.  A minimum of 2 minutes immersion time is required to acclimate the probe to the
bath.  Measure the resistance at the connector points.

Any other resistance value found at the corresponding temperature which is not within the high and low
limit curves is considered Out of Spec and deemed faulty.

THERMISTOR RESISTANCE CHART

Summary of Contents for A/T2000 XR

Page 1: ...AUTOMATIC FILM PROCESSOR SERVICE MANUAL...

Page 2: ...t Points 19 Troubleshooting 23 Section 1 Operation and Function Troubleshooting 23 Section 2 Film Quality Troubleshooting 29 Avoiding Chemistry Contamination 37 Cover Assembly 38 Base Assembly Top Vie...

Page 3: ...long term health hazards to personnel or patients CAUTIONS Any operation procedure or practice which if not strictly observed may result in destruction of equipment or loss of treatment effectiveness...

Page 4: ...NNECTOR At Rear POWER SWITCH ADJUST SET TEMP FILM INLET WITH ACTIVATING SHUTTER FILM RECEPTACLE TRAY DIVIDERS OPERATOR CONTROLS LEVELING FOOT LEVELING BASE BUBBLE LEVEL REPLENISHMENT PUMP AND AGITATOR...

Page 5: ...ot normally required because the proces sor has a 1 air gap between water supply inlet and the maximum possible water level height WATER TEMP 55 F 13 C to 80 F 27 C DRAIN 1 1 2 vertical PVC standpipe...

Page 6: ...6 PLUMBING CONNECTIONS OPTION 1 Chemistry recovery and wash water sewer disposal connection If permitted by local code...

Page 7: ...7 PLUMBING CONNECTIONS OPTION 2 Chemistry recovery and wash water sewer disposal connection If permitted by local code...

Page 8: ...the retain ing nut under cap to remove the cap assembly Cut the replenishment lines to appro priate length OPTION 1 Route water white drain hose to a vertical 1 1 2 PVC standpipe Route Developer black...

Page 9: ...that when it is inserted into the water container it reaches to the bottom of the WATER label Insert the hose into the container 3 Insert the wash water inlet hose all the way to the bottom of the wa...

Page 10: ...ITEM DESCRIPTION PART NUMBER 1 Cover Assembly with Electronic Module 45800 2 Base Assembly 45200 3 Developer Transport 45500 4 Fixer Transport 45505 5 Wash Dry Transport 45510 6 Leveling Base Assembl...

Page 11: ...FILL LINE DEVELOPER TANK FILM INLET P N 45567 WASH TANK BUBBLE LEVEL LEVELING FEET P N 43106 LEVELING BASE P N 45100 WEEP HOLE INNER BAFFLE P N 41307 OUTER BAFFLE P N 43526 BAFFLE PLATES ON LEFT END B...

Page 12: ...nge to NORMAL Mode KEY PADS ENDO SPEED The arrow indicator to the left of the keypad flashes when the A T 2000XR is in the ENDO SPEED mode Film is processed in 2 1 2 minutes NORMAL SPEED The arrow ind...

Page 13: ...By CLOSED NORMAL to ENDO to NORMAL Stand By CLOSED then OPEN for 4 seconds or more Process starts then stops at shutter closed and stays in selected mode Stand By CLOSED then OPEN for 4 seconds or mo...

Page 14: ...sec Off to 20 ON ON as long as shutter is open SEE NOTE 4 Processing NORMAL 80 to 84 F 84 F Set Point ON ON OFF ON Closed Off to 20 ON ON as long as shutter is open SEE NOTE 4 Processing ENDO 80 to 84...

Page 15: ...it defaults based on abnormal conditions 6 This condition occurs only if there both tanks and both thermal switches fail in the closed position and the developer thermistor is sensing a temperature b...

Page 16: ...LASHES 78 126 80 SEE NOTE 4 15 LAMP FLASHES 77 127 90 SEE NOTE 4 20 LAMP FLASHES 77 128 100 25 LAMP ON STEADY 76 to 32 100 30 LAMP ON STEADY Notes 1 0 44 F min 1 F min is a selected reduced power cont...

Page 17: ...SOR MODE FILM LENGTH SHUTTER Open Time PUMP On Time FLUID VOLUME POWER Turn ON 0 inch 0 min 0 sec 0 sec 126 4 26 POWER Turn ON CLEANING Mode SEE NOTE 1 0 inch 0 min 0 sec 0 sec 0 0 SHUTTER OPEN NORMAL...

Page 18: ...ear the overflow tube weir level before proceeding If any of the levels are low fill to required levels Check Developer Pumping rate 1 Remove the developer black drain hose from is drain catch and pos...

Page 19: ...LTGAGE RANGE VAC RESISTANCE RANGE Ohms WATER SENSOR Shorted Contacts J1 4 12 N A 500 600 J2 component side 2 3 N A 500 600 DRIVE MOTOR J1 3 5 Endo 103 5 126 5 245 300 J1 3 6 Endo 103 5 126 5 245 300 J...

Page 20: ...20 SYSTEM SCHEMATIC...

Page 21: ...MISTOR WATER SENSOR J4 J3 DRIVE MOTOR HEATER PAD CONNECTOR COMPARTMENT COVER REMOVE TO ACCESS J2 J3 J4 J5 TAKE J1 MEASUREMENTS HERE TO TEST COMPONENT VOLTGAGE RESISTANCE PER TEST POINT CHART CONNECTOR...

Page 22: ...mp F Thermistor Resistance 90 3668 91 3583 92 3501 93 3420 94 3343 95 3266 96 3193 97 3120 98 3050 99 2982 Notes To accurately measure the thermistor s resistance Ohms immerse the probe into a bath of...

Page 23: ...MISTRY AGITATOR PROBLEMS 26 u Agitators not spinning clogged motors not running 10 CHEMISTRY TEMPERATURE CONTROL PROBLEMS 27 u Chemistry not at 82 and or display reads error code 11 KNOCKING THUMPING...

Page 24: ...e shape the shutter flag and align as depicted by DETAIL B and DETAIL C in the COVER ASSEMBLY section page 46 With shutter in closed position the flag must be fully inserted into the PCB optic sensor...

Page 25: ...ch will prevent the transport drive motor from running B Check the interlock switch by verifying continuity between the switch leads when tripped Refer to the SYSTEM SCHEMATIC page 20 to test at J10 p...

Page 26: ...ifferent rates uneven dispensing from bottles 1 Check that the pick up tubing in the bottles reach down BELOW the chemistry level 2 Check that the bottle caps are loose a tight cap will diminish sucti...

Page 27: ...If NOT inspect the wiring harness for corrosion on connector pins or poor lugging 3 Check the resistance value of the HEATER PAD J4 pins 1 2 on the heater s connector side The measured value must be 5...

Page 28: ...water off As water partially drains the water level sensor fault clears and water flow resumes b Check solenoid valve filter screen Turn OFF water supply before inspecting If clogged or dirty clean as...

Page 29: ...E END ONLY 32 u Developer rack not square or wet inlet rollers processor not level 5 FILM HAS STREAKING CONSISTENTLY REPEATING 33 u Developer rack not square or needs cleaning processor not level 6 FI...

Page 30: ...er chemical changing the cause can be attributed to high levels of chemical activity Add Starter to developer as needed See chemistry manufacturer s recommendation D Check the chemistry temperature fo...

Page 31: ...follows POWER ON push and hold the DISPLAY SET TEMP button on the keypad The value displayed will start flashing if NOT 82 then a readjustment must be made as follows 1 Open the flip lid on the top si...

Page 32: ...et are dry if not then wipe dry 4 Inlet rollers of Developer Transport are dry if not then process a CLEANING FILM after the READY light illuminates NOTE For offices with DAYLIGHT LOADERS verify the l...

Page 33: ...flush Once attained re tighten the screws and verify the rack assembly is still sit ting flush re perform procedure if necessary Check all TRANSPORT RACKS in this manner to verify squareness 2 Check...

Page 34: ...requirements in the USER S MANUAL 6 Confirm the Replenishment Bottles did not run dry if so then change the chemistry and reiterate Monitoring of levels in the bottle are necessary and the chemistry l...

Page 35: ...heck the FIXER Agitator freely spins chemistry circulation 1 Disassemble the agitator assemblies as shown by the BASE ASSEMBLY section page 48 2 Analyze the agitator per the check sequence listed in t...

Page 36: ...eck developer chemistry for contamination Refer to AVOIDING CHEMISTRY CONTAMINATION provided on page 37 to prevent problems 2 Clean per the MAINTENANCE requirements in the USER S MANUAL 13 FIXER TRANS...

Page 37: ...nly use recommended cleaner 6 Use of Spray 2000 Plus to clean the Developer tank Only use on racks since it is very difficult to thoroughly rinse Spray 2000 Plus out of tanks thereby contaminating new...

Page 38: ...ert w Light Seal 45351 7 Shutter Assembly 43584 8 Film Sensor Assembly 44482 9 Shutter Guard 43658 10 Hinge Block 43587 11 Interlock Switch Assembly 45910 12 Vapor Barrier 43121 13 Grommet 43122 UNDER...

Page 39: ...s any previous version designed and is a drop in replacement to all vintage units The actual switch is the same part in all units onlt the mounting bracket and hardware may differ DETAIL B DETAIL D DE...

Page 40: ...40 BASE ASSEMBLY TOP VIEW OVERHEAD VIEW DETAIL A BASE ASSEMBLY 45200...

Page 41: ...Plate 45445 13 Base Wiring Harness Complete 45440 14 Thumb Screw Circulator Cover 30552 15 Fixer Circulator Cover Red 43385 16 Developer Circulator Cover Black 43384 17 Circulator Magnet 43233 17A Te...

Page 42: ...42 BASE ASSEMBLY BOTTOM VIEW SINGLE FUSE CONFIGURATION 5A...

Page 43: ...Black 96 inches 8 feet 44044 16 Replinisher Developer Outlet Tubing Black 26 inches 44042 17 Replenisher Assembly 44265 18 Tubing Developer Drain 36 inches 44209 19 Tubing Fixer Drain 12 1 2 inches 4...

Page 44: ...haft 43242 5 Drive Gear Sprocket 12 tooth 43243 6 Water Level Sensor 45450 7 Capacitor Drive Motor 44275 8 Snap Ring 41127 9 Drive Motor Assembly 45472 10 Drive Motor Mounting Plate 43253 11 Molded Dr...

Page 45: ...ground wire 3 and water inlet tube 4 from solenoid Remove existing solenoid and replace with new assembly 6 using machine screws 7 lock washers 8 and flat washers 9 supplied in kit 4 Turn base over an...

Page 46: ...tal terminals in the white connector The value must be between 52 5 and 60 0 Ohms 6 If the resistance is within this range the Heater Pad is good and the source of the heating problem is something els...

Page 47: ...o installing the new Heater Pad inspect its electrical resistance It must be between 52 5 and 60 ohms If necessary clean and wipe the tank surfaces that will be in contact with the Heater Pad to be su...

Page 48: ...ART NUMBER 1 Pump Oscillating 45070 2 PCB Internal Recirc Pump Starter 45985 3 Tubing Clear 47347 4 Bushing Grommet 49144 2 SEE DETAIL A FOR WIRE CONNECTIONS DETAIL A PCB FROM MAIN HARNESS TO RECIRC P...

Page 49: ...49 ROLLER TRANSPORTS WASH DRY TRANSPORT P N5510 DEVELOPER TRANSPORT P N45500 FIXER TRANSPORT P N 45505...

Page 50: ...NNER BAFFLE OUTER BAFFLE BAFFLE PLATES ON LEFT END BOTTOM OF BAFFLE MUST PASS BELOW RAISED BOSS ON SIDE PLATE RAISED BOSS 26 25 7 17 10 15 11 18 23 22 21 7 3 6 5 4 13 20 22 19 16 12 26 25 24 8 17 14 1...

Page 51: ...Plate Red 43507 9 End Plate Black 43502 10 Space Bar 41285 11 Baffle Plate Flat 43852 12 Baffle Plate U Shaped 43851 13 Spacer Retainer 43517 14 Handle 43516 15 Roller Plastic 43518 16 Roller Rubber 4...

Page 52: ...2 CLEAN RACK ASSEMBLIES Do not soak overnight q Place the rack assemblies in a large sink thoroughly moisten with Spray 2000 Plus or water q Clean with a soft brush or use a sponge for each rack and w...

Page 53: ...y performance To make sure that the agitators move freely and to prevent the agitator screws from seizing the agitators must be disassembled and cleaned regularly Remove the thumb screw plastic cap ma...

Page 54: ...ks and drain 6 REFILL THE TANKS WITH CHEMISTRY q Fill the Fixer tank with fixer to the fill line POUR SLOWLY Do not splash or splatter If fixer is splashed into Developer tank wipe up completely with...

Page 55: ...d 3 Follow the same procedure as for the Developer tank as described below but it is necessary to block the drain tube weep hole with the special washer that is included with the processor This washer...

Page 56: ...es and drain the tanks Dispose of the cleaning solution in accordance with local codes Replace the drain tubes q Fill the tanks with water replace the cover and reconnect the cover electrical cable Pr...

Page 57: ...existing leveling frame Discard existing leveling frame 2 Using parts supplied in kit P N 45118 install leveling feet 4 onto leveling frame as shown below Do not install support frame at this time 3 S...

Page 58: ...SOLENOID VALVE FITTING ASSS KIT 45935 REPLENISHER ASSEMBLY WITH CIRCULATOR DRAWER 45950 HEATER PAD ASS Y REPLACEMENT KIT 45970 THERMISTOR REPLACEMENT KIT 45975 EMI RFI FILTER REPLACEMENT IEC POWER ENT...

Page 59: ...2 TOOTH 43244 BEARING DRIVE SHAFT 43246 DRIVE SHAFT CLAMP RED DEVELOPER RACK DEDICATED PARTS PART No DESCRIPTION 43502 END PLATE BLACK 43516 HANDLE FIXER RACK DEDICATED PARTS 43507 END PLATE RED 43516...

Page 60: ...udly designed tested and manufactured in the U S our products are helping dental professionals take their practices to the next level Air Techniques family of quality products for the dental professio...

Reviews:

No comments