Tanaka AKV-202, Maintenance Manual

Page 1: ...matic Viscosity Measuring System Model AKV 202 Maintenance Manual Ver 1 01 070706 Read this manual thoroughly before using the product and store in a safe place for future reference TANAKA SCIENTIFIC LTD TOKYO JAPAN ...

Page 2: ...ion For your safety ensure that you understand these precautions and heed them at all times WARNING Warnings indicate a significant risk of death or serious physical injury if the information is ignored CAUTION Cautions indicate a significant risk of physical injury or property damage if the information is ignored INTENDED READER OF THIS MANUAL This Manual has been intended to be read and understo...

Page 3: ...10 2 4 Setting Sample ID 11 2 5 Setting Operator Name 12 2 6 Setting Printer and Communication Port 12 2 7 Setting built in Clock 13 2 8 Setting the Password 14 2 9 Printing Set Contents 15 3 Confirmation of Optical Projector Receiver 16 4 Counter Check 17 5 Test Result History 18 6 System Information 19 7 Problems and Solutions 20 7 1 Trouble shooting with Error message 20 7 1 1 Photo Adjust 20 7...

Page 4: ... stirrer motor 24 8 2 5 Replacing the temperature sensor 25 8 2 6 Replacing the fluorescent lamp 25 8 2 7 Replacing the glow lamp for the fluorescent lamp 26 8 2 8 Replacing the light guide optical fiber 26 8 2 9 Replacing the optical projector receiver board 27 8 2 10 Suction pump 27 8 2 11 Replacing the solenoid valve 28 8 2 12 Aligning the solvent dispenser head and the viscometer 28 8 2 13 Saf...

Page 5: ...lass thermometer 1 3 Inspecting the Bath Overheat Cutoff Device Frequency about once every three months Inspect the bath overheat cutoff device as follows 1 Turn the MAINS switch ON 2 Press the BATH CONT key to start bath temperature control 3 Set the cutoff temperature for the bath overheat cutoff device to a value lower than the current bath temperature 4 The device is functioning normally if th...

Page 6: ...t o r 0 6 P r i n t e r C o m m P o r t Fig 2 MENU Screen Page 1 01 Edit test mode See section 2 1 on page 8 02 Edit Viscometer information See section 2 2 on page 10 03 Edit Bath Preset Temperature See section 2 3 Page 10 04 Edit Sample ID See section 2 4 on page 11 05 Edit Operator Name See section 2 5 on page 12 06 Printer and Communication Port Setting See section 2 6 on page 12 M E N U P a g ...

Page 7: ...can also be changed using the up down keys Press the ENTER key to display an input screen Change the contents as follows 1 Move the cursor to an edit item using the up down keys 2 Press the left or right key to change the cursor to single character size for editing 3 Move the cursor to the numeric value to be changed using the left right keys and then change its value using the up down keys 4 Pres...

Page 8: ...e the cursor to Yes to save the edited contents or move it to No to cancel them and then press the ENTER key Print the edited contents and keep a hard copy A hard copy will be necessary when the memory backup battery runs out after approximately 5 to 7 years ...

Page 9: ... inactive If inactive is selected this mode does not appear in the standby screen Name Sample type etc can be entered so that the operator can select appropriate mode easily Viscometer Enter viscometer name which is used in this mode Wait Enter wait time before sample temperature touching bath temperature Suction Weak or Strong Select Strong only when sample get over like following figure M o d e ...

Page 10: ...ed f Pour2 Dispensing time of solvent 2 M o d e P a g e 3 3 D i p 2 1 0 s e c V a c u u m 2 1 0 s e c W a s h T i m e s 2 0 5 D r y 1 5 m i n S e t R e t u r n Fig 9 Mode screen Page 3 g Dip2 Soaking time of solvent 2 h Vacuum2 Discharge time of solvent 2 i Wash Times2 Number of times steps f h are repeated j Dry Drying time of capillary and N Tube Set test conditions at each mode registration num...

Page 11: ...ber name and viscometer constants for each viscometer registration number 2 3 Setting and Correcting Bath Temperature Up to six bath temperatures between 20o C and 100o C can be registered in this Tester Make Edit Bath Preset flash and then press the FUNCTION key to display the screen of Fig 11 B a t h P r e s e t P r e s e t N o 0 0 B a t h T e m p 0 2 5 0 0 B i a s 0 0 0 2 5 0 5 P 2 0 I 2 0 D 2 ...

Page 12: ...ation value 0 25 o C C The new calibration value will be A B C 40 03 40 00 0 25 0 22 5 Enter the correction value at Bias 6 Move the cursor to Set and press the ENTER key to calibrate the current bath temperature 7 Repeat steps 4 to 6 until the bath temperature becomes stable and the calibrated glass thermometer reading matches the displayed temperature 2 4 Setting Sample ID Up to 10 12 character ...

Page 13: ... and press the ENTER key to register the operator name 2 6 Setting Printer and Communication Port Make Printer Comm Port flash and then press the FUNCTION key to display the screen of Fig 14 P r i n t e r C o m m P o r t P a g e 1 2 P r i n t e r P r e F e e d 0 0 P o s t F e e d 0 0 B a u d R a t e 9 6 0 0 Fig 14 Printer Communication Port Setting Screen Page 1 Pre Feed Paper feed before start pr...

Page 14: ... number is set to 01 CH1 left will be 01 and the CH2 right will be 02 If this number is set to 03 CH1 left will be 03 and the CH2 right will be 04 2 7 Setting built in Clock The Tester has a built in clock Make Set Clock flash and then press the FUNCTION key to display the screen of Fig 16 C l o c k S e t t i n g Y Y M M D D h h m m s s C u r r e n t T i m e 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9...

Page 15: ...P a s s w o r d N e w P a s s w o r d C h a n g e P a s s w o r d P u s h E n t R e t u r n Fig 17 Password Setting Screen Set to OFF when it is not desired to use password protection With the exception of the current cursor location asterisks are displayed in the password columns Caution If you forget your password you have to buy new CPU board or return the CPU board to TANAKA Scientific to clea...

Page 16: ... n O F F V i s c o m e t e r S e t t i n g O F F B a t h P r e s e t O F F C o m m S e t t i n g O F F Fig 18 Print Parameters Setting Screen Page 1 P r i n t P a r a m e t e r s P a g e 2 2 S a m p l e I D O F F O p e r a t o r N a m e O F F P r i n t S t a r t R e t u r n Fig 19 Print Parameters Setting Screen Page 2 Turn a print item ON move the cursor to Print Start and press the ENTER key to ...

Page 17: ...hoto Check and press the FUNCTION key to display the screen below P h o t o M o n i t o r O U T I N O U T I N S u c t i o n 9 9 9 9 S u c t i o n 9 9 9 9 U p p e r 9 9 9 9 U p p e r 9 9 9 9 M i d d l e 9 9 9 9 M i d d l e 9 9 9 9 L o w e r 9 9 9 9 L o w e r 9 9 9 9 S t a r t P h o t o C h e c k R e t u r n Fig 20 Photo Monitor Screen Move the cursor to Start Photo Check and press the ENTER key to ...

Page 18: ...ove the cursor to Check Counter and press the FUNCTION key to display the screen below C h e c k C o u n t e r J 9 9 9 9 9 9 J 9 9 9 9 9 9 C 9 9 9 9 9 9 C 9 9 9 9 9 9 S t a r t S t o p R e t u r n Fig 21 Check Counter Screen Move the cursor to Start Stop and press the ENTER key to start counter For checking precision of counter refer ASTM D445 06 Annex A3 ...

Page 19: ... i s t o r y N o 4 9 P r i n t D a t e 0 0 0 0 0 0 V C 9 9 9 9 9 9 9 9 9 9 T i m e 0 0 0 0 0 0 V J 9 9 9 9 9 9 9 9 9 9 S a m p l e I D V 9 9 9 9 9 9 9 9 9 9 A A A A A A A A T C 9 9 9 9 9 T e s t M o d e T J 9 9 9 9 9 A A A A A A A A R e t u r n Fig 22 Test Result History Screen The latest result is stored at No 0 Move the cursor to Print and press the ENTER key to print the stored results ...

Page 20: ... can be checked by this screen In the MENU screen move the cursor to System Information and press the FUNCTION key to display the screen below S y s t e m I n f o r m a t i o n R O M V e r s i o n 1 1 R e t u r n Fig 23 ROM Version Screen ...

Page 21: ...not adjusted correctly 7 1 2 Suction Time The sample could not be sucked Replace the viscometer with one that is suitable for the sample 7 1 3 Time Over The measurement time exceeded 1000 seconds Replace the viscometer with one suitable for the sample 7 1 4 Photo Unstable The optical receiver intensity is not stable The bath liquid may contain bubbles or be contaminated 7 1 5 Temp Sensor The tempe...

Page 22: ...Circuit protector head not projecting Replace the MAIN board No display Able to start Faulty display Replace the fluorescent display Able to start Replace the fluorescent display Abnormal display Unable to start Replace the MAIN board Intermittent buzzer sounds after MAINS switch ON Faulty CPU board Replace the CPU board Other keys also disabled Replace the MAIN board Operation key disabled Other ...

Page 23: ...ing upward After replacing parts put the control part cover back into the original position and fix securely with screws Be careful that no internal wiring gets pinched between the chassis and the cover 8 1 1 CPU Board The CPU board is mounted in a slot on the MAIN board see Fig 25 8 1 2 ROM As shown in Fig 25 the ROM is inserted with the dent towards CNB 8 1 3 Internal battery The internal batter...

Page 24: ...ower at the top of the bath 7 Remove the position detection sensor for the cleaning agent dispensing head and the temperature sensor and disconnect each metal connector 8 Disconnect the light guide from the panel 9 Unscrew the securing screws from the bottom on each side of the bath and pull the bath out 8 2 2 Removing the top lid of the bath 1 Unscrew the four screws that secure the top plate of ...

Page 25: ...ss handling may cause shaft deflection 1 Remove the top lid of the bath and place it on a wide workbench 2 Loosen the motor side setscrews of the agitation shaft using a 1 5 mm hex socket head wrench Fig 29 3 Extract the agitation shaft from the motor Do not do this by holding the agitation shaft directly but by holding the shaft adapter 4 Undo the motor mounting screws and replace the motor Fig 3...

Page 26: ...and remove the sensor 8 2 6 Replacing the fluorescent lamp Note The bath need not be removed from the main unit 1 Remove the viewing window frame from the front of the bath See Fig 32 2 You will see a fluorescent lamp inside the square hole after removal Put your hand inside and twist the lamp to remove it See Fig 33 Specification of Fluorescent lamp 100V 6W Straight all 100 to 240 VAC models are ...

Page 27: ...e front plates upper and lower at the top of the bath 2 Remove the light guides from the optical projector receiver panel 3 Unscrew the setscrews on the top plate of the light guide holder from the top lid of the bath and remove the light guide holder 4 Replace the light guide Do not fasten the setscrew at the mouthpiece of the light guide too hard Make sure that the light guide does not extend be...

Page 28: ...ragm when the suction force has become weak 1 Unscrew the four screws around the pump head See Fig 37 2 Unscrew the diaphragm setscrews inside and replace the diaphragm 8 2 10 2 Replacing the suction pump 1 Place the bath about 10 cm away from the main unit after removing the bath 2 Disconnect the suction pump lead wire from the terminal board and remove the piping 3 Undo the four nuts at the rubb...

Page 29: ... the piping leading to the solenoid valve 3 Remove the solenoid valve mounting screws from the back of the solenoid valve mounting board See Fig 39 4 Take the ring joint and the hose nipple off from old solenoid valve and then attach them to a new solenoid valve 5 Install the new solenoid valve in reverse order 8 2 12Aligning the solvent dispenser head and the viscometer 1 Remove the viscometer ho...

Page 30: ...e 1 Place the bath about 10 cm away from the main unit after removing the bath 2 Disconnect the metal connector for the safety device from the main unit 3 Remove the metal fixture where the detector is attached See Fig 41 4 Replace the component from outside END Fig 41 Float Switch and Overheat Cutoff device ...

Page 31: ...to Power Supply AC N to Power Supply AC L 100V AC N 100V AC L 100V AC N 100V CN6 CN5 RD1 25 WH1 25 RD1 25 RD1 25 WH1 25 OR1 25 GY1 25 OR1 25 Silicone Cover1 25 Silicone Cover1 25 Silicone Cover1 25 OR0 75 BK0 75 RD0 75 GR0 75 WH0 75 RD0 75 BK0 75 SV CH1 SV2 SV CH1 SV3 SV CH1 SV4 SV CH1 SV5 SV CH1 SV6 BR0 3 RD0 3 BR0 3 RD0 3 OR0 3 Y0 3 1 2 1 2 1 2 1 2 1 2 1 2 4 3 OR0 75 GY0 75 OR0 75 GY0 75 CN1 CN2...

Page 32: ...Solvent 1 Solvent 2 Waste Tank 1 Waste Tank 2 ...