Sanyo MLS-3781L - User Manual

I FILE No.
SERVICE MANUAL High-pressureSleamSlerilizer
Labo Autoclave
MODEL NO.
MLS-37S1 Ll3781 L
Photo: MLS-3751 L
INDEX
~-- ITEM NAME PLATE
• Model No.indication
R""N,r:; LABEL
+Model No. and rated power
supply voltage are indicated here.
Model No. Rated Voltage Plug
MLS·3751L AC 120V
MLS·3751L
AC230V
MLS·3781L AC230V
MLS·3781L AC230V
Productcord No.
131699501
131699502
131699401
131699402
1. Safety Precautions in Servicing Work .................................................... ·············1
2. Specifications ...................................................... ·········································2
3. Outside Dimensions ...............................•...........•...........•........................... 3"""4
4. Names of Parts and Operations ...................................................... ··············5-6
5. Construction and Functions ....................................................................... 7 .......... 10
6. Piping Diagram and Wiring Diagram ...........•...........•...........•.................. ·····11~12
7. Process Flow and Operations .................................................................. ··13~21
8. About Various Modes .. · .. · .. · .. · .. · .. · .. · .. · .. · .. · .. · .. · .. · .. · .. · .. · .. ···· .. · .. · .... · .. · .. · .. ·· .. 22 .......... 27
9. Temperature and Pressure Adjustment and Checking .................................... ··28 .......... 32
10. Thermistor Temperature Characteristics /
Altitude. Atmospheric Pressure and Boiling Point in Standard Atmosphere················ 33
11. Circuit Diagram ...................................................... ······································34
12. Troubleshooting ...................................................... ································35~44
13. Disassembling Procedure .............•...........•...........•...........•...................... ··45~50
14. Instruction Manual .. · .. · .. · .. · .. · .. · .. · .. · .. · .. · .. · .. · .. · .. · .. · .. · .. · .. · .. · .. · .. · .... · .. · .. · .. ·· .. 51 .......... 63
15. Parts List .......................................................•...........•...................... ··64~71
16. Instruction Manual of Works for Optional Parts ··· .. · .. · .. · .. · .. · .. · .. · .. · .... · .. · .. · .. ·· .. 72 .......... 79
REFERENCE No. SM6610004

Sanyo MLS-3781L Specifications

General

Model	MLS-3781L
Magnification	40x-1000x
Stage	Mechanical
Condenser	Abbe
Focus	Coaxial coarse and fine
Type	Upright Biological Microscope

Summary

Safety Precautions in Servicing Work

Specifications

Names of Parts and Operations

Construction and Functions

Process Flow and Operations

Descriptions of Process Operation

Detailed explanations of each step in various sterilization processes.

Descriptions of Safety Device Actuation

About Various Modes

Temperature and Pressure Adjustment and Checking

Adjustment of Thermistors

Manually correcting temperatures of lateral, object, and bottom thermistors.

Adjustment of Pressure Sensors

Manually correcting pressure sensor readings at open lid and 135°C.

Checking Safety Valve Operation

Procedure to check if the safety valve actuates correctly at specified conditions.

Circuit Diagram

Troubleshooting

Stand-by Not Displayed

Troubleshooting steps for when the unit does not power on or display stand-by.

Lid Appears on Display

Troubleshooting for "Lid" error preventing process start.

Door Appears on Display

Troubleshooting for "door" display error when the cover is closed.

Process Does Not Start

Steps to take when the process fails to start.

Power Not Supplied to Heater

Diagnosing issues where the heater is not receiving power.

Hose Appears on Display

Steam Leaks from Chamber Periphery

Identifying and fixing steam leaks around the chamber.

Steam Leaks from Pipe and Joint

Diagnosing and repairing steam leaks from pipes and joints.

Open Error (E1) Lateral Thermistor

Troubleshooting for lateral thermistor open circuit errors.

Abnormal Temp. Object Sensor (TH2)

Troubleshooting for abnormal object temperature sensor readings.

Abnormal Temp. Bottom Thermistor (TH3)

Troubleshooting for bottom thermistor abnormal temperature errors.

Handle Lock Unlockable (E6)

Diagnosing and fixing issues with the handle lock mechanism.

Movable Handle and Lid Lock Not Working (E7)

Troubleshooting for issues with the movable handle and lid lock.

Abnormally High Pressure (E8)

Addressing situations of abnormally high pressure within the chamber.

Pressure is Low (E9)

Troubleshooting steps for low pressure conditions.

Data Read;Write Error (E10)

Resolving issues with memory read/write errors.

Optional Printer Not Working

No Sound Issued

Date and Time Reset

Disassembling Procedure

Dismounting the Packing of the Chamber

Dismounting the Side Panel and Back-Side Panel

Dismounting the PC-Board Assembly for Control