Biosan RTS-1C User manual

Periodical maintenance
Real Time Cell Growth Logger RTS-1C does not require periodical technical
maintenance, except cleaning.
Cleaning. Standard ethanol (up to 75%) or any other cleaning liquids can be used for
cleaning and disinfecting of the device, if it does not contain any strong organic
solvents (such as acetone, toluene or benzene).
The following spare parts are available for Cell Growth Logger RTS-1C:
RTS-1C Service Manual - V.3A01 Version 1 - February 2015 Page 1
Service Manual for
Real Time Cell Growth Logger RTS-1C
No. Spare part Marking Article
1 Switch H8600VB1 BS-000000-S02
2 Power Socket HEBL 2,1mm BS-000000-S03
3 USB Connector Board U231 BS-000000-S83
4 Control Board MASTR_GRAPH BS-010160-S01
5 LCD Board BG1286 4EFPHBn207 BS-010160-S02
6 Microprocessor main PIC18F2520 BS-010160-S06
6 Microprocessor display PIC18F2520 BS-010160-S07
7 Button Board BUTM1 BS-010160-S04
8 Casing RTS-1C BS-010160-S13
9 Power Board MDRV7 BS-010160-S03
10 Motor FL42BLS01 BS-010160-S08
11 Fan ME70201V1 BS-010160-S11
12 Peltier element 2TM-127-63-6.5MS BS-010160-S12
13 Detector Board PH3 BS-010160-S05
14 Thermosensor DS18B20 BS-010160-S09
15 LED L-53SF7C BS-010160-S10

I. Spare part replacement
Disassembling:
1. Disconnect the unit from power supply.
2. Remove the tube cap (fig.1/1) by lifting it up.
3. Unscrew the six screws (fig.2/1) on the
underside to release the base part.
Disassembling is applied to all replacements mentioned below.
1. To replace the Switch:
– disconnect the wire terminals (fig.3/1) from the Switch;
– pull out the Switch (fig.3/2);
– replace the Switch;
– re-assemble the unit.
2. To replace the Power Socket:
– unscrew the Power socket from the casing (fig.3/3);
– solder out the power wires (fig.3/4) from the socket (1. scheme);
– replace the Power socket and re-assemble the unit.
3. To replace the USB Connector Board:
– disconnect the wire (fig.3/9) from control board;
– unscrew the two screws (fig.3/5) and release the
USB Connector Board;
– replace the USB Connector Board;
– re-assemble the unit.
Disassembling continued:
1. Disconnect the wire terminals (fig.3/1) from the Switch.
2. Unscrew the Power socket from the casing (fig.3/3).
3. Unscrew the two screws (fig.3/5) and release the USB
Connector Board.
4. Unscrew the four screws (fig.3/6) on the
underside to release the motor assembly ( ).fig.5
5. Unscrew the two screws (fig.3/10) and release the power
wires from the Power Board.
6. Disconnect the wire (fig.3/11) and pull out motor
assembly.
Disassembling is applied to all replacements mentioned below.
fig.2M
fig.1M
RTS-1C Service Manual - V.3A01 Version 1 - February 2015 Page 2
Front view
Underside
1
fig.3M
Base part removed
1
124 3
scheme.1
Not used
5
7
8
6
910
11

4. To replace Control Board:
– disconnect all wire terminals from the Control Board;
– unscrew the four screws on the Control Board assembly (fig.4/1);
– remove Control Board;
– replace the Control Board;
– re-assemble the unit.
Note: LCD Board connected with Control Board via socket.
During installation avoid mechanical strain of LCD Board. If
washers was applied between Control and LCD Board before
disassembling, then mount them back while re-assembling.
5. To replace LCD Board:
– disconnect all wire terminals from the Control Board;
– unscrew the four screws on the Control Board assembly (fig.4/1);
– remove the LCD Board located under the control board;
– replace the LCD Board;
– re-assemble the unit.
Note: During installation avoid mechanical strain of LCD
Board. If washers was applied between Control and LCD
Board before disassembling, then mount them back while re-
assembling.
LCD contrast tuning
– after replacing the Control Board or the LCD Board, LCD
display need contrast tuning;
– to tune contrast of the display, it is necessary to connect to the
circuit and switch the unit without re-assembling;
– take necessary precautions against electric shock hazard;
– connect the cables and power wires;
– plug in the power cord to the circuit and switch on the unit;
– the display lites up;
– turn the potentiometer screw (fig.4/5) and tune the display contrast;
– re-assemble the unit.
6. To replace the Microprocessor:
– with the help of special tool or using a small, flat tip screwdriver
carefully remove the Microprocessor (fig.4/3, fig.4/4);
Do not mix up correct side installing the new one!
The Microprocessor’s and connector’s shape
has the same notch (2. scheme).
Use special tool for microprocessor installation, do not touch
microprocessor pins with bare hands, while replacing
microprocessor use ESD-protection – wrist strap.
Microprocessor is delivered already programmed.
– replace the Microprocessor;
– re-assemble the unit.
7. To replace the Button Board:
– disconnect the wire terminal from the Button Board;
– unscrew the two screws on the Button Board (fig.4/2);
– replace the Button Board;
– re-assemble the unit.
fig.4M
RTS-1C Service Manual - V.3A01 Version 1 - February 2015 Page 3
Control board
35
scheme.2
4 12 6

8. To replace the Casing:
– see both disassembling paragraphs;
– pull out the switch (fig.3/2) from the socket;
– tear off ferrite (fig.3/7) from the casing;
– unscrew the four screws (fig.4/8) and remove electronics base plate;
– replace the casing;
– re-assemble the unit.
9. To replace the Power Board:
– disconnect all wires and terminals from the Power Board;
– unscrew the two screws (fig.5/1) and release Peltier element wires;
– unscrew the two screws on the Power Board (fig.5/2) and release the
board;
– measure the resistance between two pins (fig.5a/1) on the old board;
– using the potentiometer (fig.5a/2) adjust resistance on new power
board to reach the same resistance as measured in replaceable board
between two pins (fig.5a/1).
– replace the Power Board;
– re-assemble the unit.
10. To replace the Motor:
– disconnect Motor wires (fig.5/3) from power board;
– unscrew the four screws (fig.3/8) and pull out motor with tube holder;
– unscrew the two hex set screws (fig.6/1) and remove tube holder;
– unscrew the four screws (fig.6/2) and release the motor;
– replace the motor;
– re-assemble the unit.
11. To replace the Fan:
– disconnect Fan wire terminal (fig.5/4) from power board;
– unscrew the four screws (fig.7/1) and remove the Fan;
– replace the Fan;
– re-assemble the unit.
12. To replace the Peltier element:
– disconnect Fan wire terminal (fig.5/4) from power board;
– unscrew the four screws (fig.7/1) and remove the Fan;
– unscrew the two screws (fig.5/1) and release Peltier element wires;
– unscrew the two screws (fig.7/2) and remove the heatsink;
– replace the Peltier element located under heatsink;
– use new thermal compound to install Peltier element;
Caution! To install the heatsink on the thermoblock with the
screws, use torque driver to make appropriate pressure on
Peltier element. Standard Peltier element (2TM-127-63-
6.5.MS) pressure - 110 cNm.
Higher pressure can damage the Peltier element.
– re-assemble the unit.
13. To replace the Detector Board:
– tear off heat insulation (fig.5/5);
– disconnect the Detector Board wire (fig.8/1) from the power board;
– unscrew the three screws (fig.8/2) and remove the Detector Boar;
– replace the Detector Board;
– re-assemble the unit.
fig.5M
RTS-1C Service Manual - V.3A01 Version 1 - February 2015 Page 4
Motor assembly
fig.6M
Motor with tube holder
21
1
2
3
fig.7M
Fan
4
1
2
5
fig.5aM
Power board
1
2

14. To replace the Thermosensor:
– tear off heat insulation (fig.5/5);
– disconnect Thermosensor wire (fig.8/3) from the power board;
– pull out Thermosensor from the slot (fig.8/4) and replace the
Thermosensor;
– re-assemble the unit.
Note: Installing new sensor grease the new sensor with the thermal
compound.
Thermosensors are delivered already pre-calibrated.
15. To replace the LED:
– tear off heat insulation (fig.5/5);
– disconnect the wire (fig.9/1) from power board;
– pull out glued LED’s from their slots (fig.9/2);
– replace the LED’s
– reassemble the unit.
Note: While re-assembling glue the new LED’s inside the slots.
II. Device calibration for maintenance:
Note: Only use this calibration if the measurement system does not
work correctly or after hardware re-installation, detailed
calibration information is described in user manual.
Following instructions apply to:
– Resetting baseline value for factory hardware pre-calibrated
devices with hardware version 7 or earlier
– Adjusting RPM fluctuation for signal strength stabilization,
which is required for maintenance after re-installation of
hardware for all versions of the device.
1. Turn on the device.
2. Insert a 50 ml centrifuge tube filled with 10ml of H O into the device.
2
3. Set the Volume parameter to 10ml.
4. Using control panel or software unit control panel, set RPM to 2000.
5. Press Run/Stop button.
6. Press and hold Select button until ”CC” command will appear and blink on the
display.
7. Press ‡ button and ”0.00” number will appear and blink on the display.
8. Wait 15 seconds and press ˆ button.
9. Device is now calibrated and will make one verification measurement
RTS-1C Service Manual - V.3A01 Version 1 - February 2015 Page 5
fig.9M
Optical system
1
2
fig.8M
Heat insulation removed
2
1
3
4

Control Board with LCD Board
Motor
Power Board
Button
Board
USB Connector Board
LED
Detector Board
RTS-1C Service Manual - V.3A01 Version 1 - February 2015 Page 6
Thermosensor
Fan
Peltier element