Table of Contents
Troubleshooting
Related Manuals for Tanaka AKV-202
Summary of Contents for Tanaka AKV-202
- Page 1 Automatic Kinematic 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: Foreword
Thank you for purchasing Model AKV-202 from Tanaka Scientific Limited. This Maintenance Manual includes necessary information for the re-adjustment and repairing of AKV-202. Please read this Manual thoroughly to understand the contents before maintenance. This manual employs the following precautionary notation. For your safety, ensure that you understand these precautions and heed them at all times. -
Page 3: Table Of Contents
Contents FOREWORD..........................1 INTENDED READER OF THIS MANUAL..................1 REVISIONS ..........................1 Contents............................2 Periodical Inspection ......................4 Checking Temperature Calibration Input (Frequency: about once a month) ....4 Checking Temperature Display (Frequency: about once every three months) ....4 Inspecting the Bath Overheat Cutoff Device (Frequency: about once every three months) ............................4 Adjustment Method ........................5 Editing Test Mode......................8... - Page 4 8.1.1 CPU Board......................22 8.1.2 ROM ........................22 8.1.3 Internal battery .......................22 Bath Section Part replacement ..................23 8.2.1 Removing Bath ......................23 8.2.2 Removing the top lid of the bath ................23 8.2.3 Replacing the heater....................24 8.2.4 Replacing the stirrer motor..................24 8.2.5 Replacing the temperature sensor .................25 8.2.6 Replacing the fluorescent lamp................25 8.2.7...
-
Page 5: Periodical Inspection
1 Periodical Inspection To maintain the Tester’s performance and to ensure safety, be sure to inspect this Tester periodically. 1.1 Checking Temperature Calibration Input (Frequency: about once a month) Using the later procedure 2.3.3, check that an input temperature offset value is stored in the memory correctly. -
Page 6: Adjustment Method
2 Adjustment Method The test mode can be edited and the bath temperature can be set by using the panel switches in the following way. While depressing the FUNCTION key, press and release the RESET key to display the screen shown in Fig. - Page 7 07: Built-in Clock Time Setting -> See section 2.7 on page 13. 08: Password Setting -> See 2.8 on page 14. 09: Print All Parameters -> See section 2.9 on page 15. 10: Meniscus Sensor Photo Check -> See section 3 on 16. 11: Check Counter ->...
- Page 8 y o u s a v e i t ? Y e s Fig. 5 Save Screen Move 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.
-
Page 9: Editing Test Mode
2.1 Editing Test Mode Up to 20 test modes can be registered in this Tester. Make [Edit Mode] flash and then press the FUNCTION key to display the screen shown in Fig. 6. [ M o d e ] P a g e : 1 / 3 N o . - Page 10 (a) Discharge: Discharge time of the sample (b) Pour1: Dispensing time of solvent 1 (c) Dip1: Soaking time of solvent 1 (d) Vacuum1: Discharge time of solvent 1. (e) Wash Times1: Number of times steps (b)~(d) are repeated. (f) Pour2: Dispensing time of solvent 2 [ M o d e ] P a g e : 3 / 3 D i p 2 :...
-
Page 11: Setting Viscometer Number And Constants
2.2 Setting Viscometer Number and Constants Up to 10 sets of viscometer numbers and constants can be registered in this Tester. Make [Edit Viscometer] flash and then press the FUNCTION key to display the screen shown in Fig. [ V i s c o m e t e r ] N o . -
Page 12: Setting Sample Id
Calibrate the bath temperature using a glass thermometer as follows: 1) Insert a calibrated glass thermometer suitable for the calibration temperature into the bath. 2) Press the BATH CONT. key in the main screen to start bath temperature adjustment. 3) In the Bath Preset screen, select a bath temperature number to calibrate [Preset No.]. 4) Once the current bath temperature has become stable, read the glass thermometer to determine the calibration value. -
Page 13: Setting Operator Name
2.5 Setting Operator Name Up to 10 12-character operator names can be registered in this Tester. Make [Edit Operator] flash and press the FUNCTION key to display the screen of Fig.13. [ O p e r a t o r N a m e ] N u m b e r : O p e r a t o r... -
Page 14: Setting Built In Clock
[ P r i n t e r & C o m m . P o r t ] P a g e : 2 / 2 C o m m . P o r t : B a u d R a t e : 9 6 0 0 M a c h i n e... -
Page 15: Setting The Password
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 clear the password. Please record your password and keep it safe place. -
Page 16: Printing Set Contents
2.9 Printing Set Contents Make [Print All Parameters] flash and then press the FUNCTION key to display the screen of Fig. 18. [ P r i n t P a r a m e t e r s ] P a g e : 1 / 2 A l l P a r a m e t e r s : O F F... -
Page 17: Confirmation Of Optical Projector/Receiver
3 Confirmation of Optical Projector/Receiver The Tester automatically adjusts the optical projector intensity so that the intensity received by the meniscus detection mechanism will be 50%. The optical projector/receiver intensities can be checked by the following method. In the MENU screen, move the cursor to [Photo Check] and press the FUNCTION key to display the screen below. -
Page 18: Counter Check
4 Counter Check This tester has time counter function for measuring timing. Accuracy of the counter can be checked by this function. In the MENU screen, move 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 ] 9 9 9 9 . -
Page 19: Test Result History
5 Test Result History The Tester can store the 50 latest test results. In the MENU screen, move the cursor to [History] and press the FUNCTION key to display the screen below. [ H i s t o r y ] H i s t o r y N o . -
Page 20: System Information
6 System Information ROM version 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 . -
Page 21: Problems And Solutions
7 Problems and Solutions 7.1 Trouble shooting with Error message This Tester displays Errors 01 to 09 as follows: T R O U B L E T R O U B L E E r r o r E r r o r P h o t o A d j u s t P h o t o... -
Page 22: Bath Level
7.1.7 Bath Level The bath liquid level is low. Replenish the bath liquid. 7.1.8 Bath Overheat The bath temperature has exceeded the set temperature of the bath overheat cutoff device. Set the temperature of the bath overheat cutoff device to the test temperature + 10°C or higher. -
Page 23: Parts Replacement Procedures
8 Parts Replacement Procedures Warning: Before replacing parts, turn the main switch off, disconnect the plug from the outlet, and wait for one minute or longer. Otherwise, electric shock or damage to the instrument may occur. 8.1 Control Part Replacement Prior to replacing parts, remove the control part cover. -
Page 24: Bath Section Part Replacement
8.2 Bath Section Part replacement Caution: Be careful not to catch the rubber tubing for washing. 8.2.1 Removing Bath 1) Remove the back plate of the main unit. Disconnect the ventilation fan and the gas detector from the relay connectors. 2) Disconnect the lead wires of the heater and the fluorescent lamp from the terminal board. -
Page 25: Replacing The Heater
8.2.3 Replacing the heater 1) When the top lid has been removed, you can see the heater mounting nuts on the back of the bath. After securing the inside of the bath with a wrench, loosen the nuts. Remove the nuts on both sides and extract the heater toward inside the bath. -
Page 26: Replacing The Temperature Sensor
8.2.5 Replacing the temperature sensor The bath need not be removed from the main unit. The procedure is as follows. 1) Remove the front plates (upper and lower) at the top of the bath. 2) Remove metal connector temperature sensor. 3) Unscrew the temperature sensor setscrews and remove the sensor. -
Page 27: Replacing The Glow Lamp For The Fluorescent Lamp
8.2.7 Replacing the glow lamp for the fluorescent lamp 1) Remove the back or right plate of the main unit. 2) There is a power box for the fluorescent lamp at the back of the bath. Replace the glow lamp on its side. -
Page 28: Replacing The Optical Projector/Receiver Board
8.2.9 Replacing the optical projector/receiver board 1) Remove the front plate (upper) at the top of the bath. 2) Remove the optical projector/receiver panel from the main unit and extract it. 3) There is an optical projector/receiver board at the back of the panel. Disconnect the connectors and unscrew the eight setscrews to remove the board. -
Page 29: Replacing The Solenoid Valve
8.2.11 Replacing the solenoid valve 8.2.11.1 Replacing the plunger (when the solenoid valve is located the place where the plunger can be replaced easily.) 1) Remove the clip from the solenoid valve top and extract the coil section. 2) Remove the body by rotating it using a wrench. 3) Replace the internal plunger. -
Page 30: Safety Devices
8.2.13 Safety devices (Replacing the float switch (bath liquid level monitor) and bath overheat cutoff device) 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. - Page 31 LEGEND BK: black Printer Setting DRAWN NO. SHEET NO. Silicone Cover1.25 BL: blue BR: brown GR: green 名称： AKV-202 Wiring Diagram GY: gray Silicone Cover1.25 OR: orange 基板名： RD: red OR0.75 AC-L to Power Supply VL: violet VERSION DRAWN BY...
- Page 32 Solvent 1 Solvent 2 Waste Tank 2 Waste Tank 1...