Laboratory Horizontal Autoclave BEO1F5 (BAHZ-401-A)

Cross screwdriver

Cross screwdriver

Cross screwdriver

inner hexagon spanner

Diagonal pliers

Open-end wrench

Adjustable wrench

Electric soldering iron and

soldering tin

Sleeve

A multimeter

PTFE TAPE

Electrical tape

Electric drill

Needle nose pliers

Hot melt gun

75mm and 50mm Open-end wrench

E01

E02

E03

E04

E06

E10

E11

E12

E16

E19

E21

E22

E23

E24

E26

E28

E36

E43

E46

Fault code

Fault description

Possible causes

Exclusion method

remarks

code E01

After starting the procedure, the sterilization chamber door is not locked or the chamber door interlock fails;

The cover is not closed in place and the cavity cover is not closed tightly during

the user's use;

The microswitch in the cavity cover is not actually stuck in place, or the microswitch is damaged;

Check that the indicator of the lid lock on the LCD screen flashes red, and then close the lid again;

Remove the outer cover of the chamber, check the conduction of the microswitch when closing the door, and adjust the position of the microswitch;

real- time detectio n

3.The fuse of the interlocking motor is burnt or the motor is damaged;

4.The intermediate relay controlled by the corresponding interlocking motor is burnt

3. When opening the door, check whether the interlocking motor terminal is normally powered by AC220V, check whether the fuse is damaged and replace it;

5. The wiring of the corresponding motor power supply circuit falls off, loosens, heats up and burns

4. Check whether the intermediate relay coil is closed normally;

6. The corresponding output point of the control motor on the PLC or the corresponding input point of the microswitch is damaged;

5. Check whether the wiring from the power incoming line to the two main contacts of the intermediate relay and from the contactor to the terminal is good

6. Check whether the corresponding output point of PLC is on, and

whether the input point inputs the ON signal, otherwise

code E02

After starting the procedure, no change of evaporator temperature is detected within a certain period of heating

Solid state relay fault;

Heating pipe failure;

Heating contactor fault;

PLC output point fault

Observe whether the solid-state relay indicator flashes green normally, otherwise, the next step;

Measure whether the resistance of each two wires of the heating pipe is about 10.2 Ω, otherwise replace the heating pipe;

Check whether the input and output voltage of the contactor are normal, or replace the contactor;

Check whether the corresponding output voltage of PLC is within

DC24V, or replace the PLC module;

real- time detectio n

code E03

After starting the program, it is detected that the normally closed signal of temperature control switch and pressure

The temperature start value of the temperature control switch is not adjusted to about 260 °, or the temperature control switch is damaged;

Pressure switch failure;

The input points of

Check whether the temperature of the temperature control switch is set accurately and rotate it for adjustment;

Check and measure whether the voltage at both ends of temperature control and pressure switch is normal

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switch becomes normally open;

temperature control and pressure switch controlled by PLC are damaged;

4. The temperature control switch is actually started, there is no water in the cavity, and the reason for pure water inlet valve, pipeline and pressure

and whether there is normal voltage. If yes, replace the temperature control switch and pressure switch;

3. Check whether the PLC input port is in the ON state, and if so, how to replace the PLC module;

4. Check whether the pure water is open, whether the pipeline is damaged by water leakage, and whether the pressure is normal;

code E04

① : The temperature in standby is greater than the maximum working temperature set in the background;

② : The chamber temperature is greater than or less than the sterilization temperature limit value during sterilization;

Poor contact of temperature sensor or corresponding terminal of PLC;

The sterilization process is reported to E04, mainly to confirm whether the cold air is discharged normally, whether the sterilization articles are sealed, and whether the instrument is leaking;

If E04 fails to enter the sterilization stage during the heating process, the temperature compensation value of the inner chamber is usually insufficient, and the temperature and pressure cannot

correspond

Check and lock the temperature sensor terminal wire, or replace the temperature sensor;

Check whether the sterilization items and status are normal, run an empty process again, and compare whether there is a fault code;

Check whether the cavity temperature display value is normal during no-load operation, or reset the inner chamber temperature compensation in the advanced parameters;

real- time detectio n

code E06/07

E06 The judgment condition is that the temperature sensor is open

E07 judges that the condition is that the temperature sensor is short-circuited

The sensor is broken, or the wiring is loose or the contact is poor;

The temperature port corresponding to PLC is broken, replace or repair the main board;

Check whether the terminal can be removed normally by replacing it with 120 Ω resistance (equivalent to

50 °C); If it is normal, the sensor is broken;

2. Replace the original position sensor with 120 Ω. If it cannot work normally, replace the PLC temperature module;

real- time detectio n

code E10

Abnormal interruption of sterilization process

The sterilization is not completed and the trip is interrupted;

The sterilization is not

completed and the power is cut off artificially;

Check whether the current is overloaded and restart sterilization;

Press the confirmation key to remove the code and restart sterilization;

real-time detection

code E11

Abnormal water inflow;

The pure water inlet pipe and valve are not opened, and the water supply is abnormal;

Whether the pure water pressure meets the pressure of 0.1-0.5MPA;

The liquid level switch is damaged or dirty;

Whether the input and output points corresponding to PLC are

Check whether the water inlet of the pure water pipeline is normal and whether the valve is open;

Check whether the booster pump works normally and whether the pressure is normal;

Check whether the liquid level switch is damaged and whether the inner wall is dirty, disassemble and clean it;

real-time detection

damaged

4. Check whether the PLC booster pump is damaged and whether the input of the PLC level switch is normal

code E12

① : When the sterilization process is over and the temperature is lower than the cover opening temperature, the diaphragm switch is not closed (the top rod of the diaphragm switch does not fall off);

② : During the heating process, when the main control temperature is greater than the pull-in action temperature, the micro-pressure switch is still in the pull-in state (the top rod of the diaphragm switch is not pushed up)

If the E12 fault is reported during the heating process, confirm whether the pressure gauge shows that the pressure has reached 0.015MPa at 110 °C, and if it does not indicate that the temperature and pressure are not corresponding;

If E12 fault occurs after sterilization;

E12 will be reported immediately after startup and cannot be cancelled;

When the temperature drops to the point where the cover cannot be opened, E12 will be

reported;

The diaphragm switch is usually replaced;

Start up and report E12. Use a multimeter to detect that the PLC has 24V output, which usually means that the connecting wire or diaphragm switch is broken. If there is no output, the PLC is broken;

Pull the safety valve to see if there is pressure in the cavity. If yes, continue to pull the safety valve to relieve pressure. Otherwise, replace the diaphragm switch

real- time detectio n

code E16

E16 judges that the condition is that the article temperature sensor is open

The temperature sensor of the article is broken or has poor contact;

Check whether the terminal can be removed normally by replacing it with 120 Ω resistance; If it is eliminated normally, the sensor is broken;

real- time detectio n

E17 judges that the condition is that the article temperature sensor is short-circuited

2. The temperature port corresponding to the main board is broken, replace or repair the main board;

2. Replace the original position sensor with 120 Ω. If the fault cannot be eliminated, replace the PLC or PLC for repair;

code E19

It is judged that the container level sensor is dirty

The liquid level sensor is dirty;

PLC input point is damaged;

Remove the liquid level switch and clean it;

Replace the PLC input point module;

real-time detection

code E21

Vacuum leakage fault: keep vacuuming, pressure does not drop

The instrument detects a leak:

Check whether the sealing ring, solenoid valve, copper pipe joint and other positions of the instrument are leaking;

The sealed cavity tube and sterilization bag of the instrument are loaded too much, and the air cannot be completely discharged by vacuuming;

The vacuum pump does not work, the voltage supply is out of phase

Replace the heating or solenoid valve;

Take out the load and compare it with no-load operation;

Check the power supply of vacuum pump and run again;

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code E22

Vacuum leakage fault: during the vacuum test, the cavity pressure increases too much in the first 5 minutes

During vacuum leak test:

Check whether the sealing ring, solenoid valve, copper pipe joint and other positions of the instrument are leaking;

The sealed cavity tube and sterilization bag of the instrument are loaded too much, and the air cannot be completely discharged by vacuuming;

Replace the heating or solenoid valve;

Take out the load and compare it with no-load operation;

Check the power supply of vacuum pump and run again;

real- time detectio n

code E23

Vacuum leakage fault: during sterilization, the cavity pressure is not within the range of saturation pressure (± 27kPa)

At sterilization stage:

The pressure and temperature values do not correspond, usually the pressure or temperature compensation value is incorrect, and the compensation value shall be compared and set again during no-load operation;

The sealed cavity tube and sterilization bag of the

Reset the compensation value during no-load operation;

If there is water in the chamber, the steam will not be saturated. Open the drain valve;

Check whether the sterilization articles are loaded too much and whether the sealed sterilization bag is open;

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instrument are loaded too much, and the air cannot be completely discharged by vacuuming;

code E24

During the test of the safety valve in the chamber, the pressure relief value of the safety valve is reached after the pressure is increased, and the pressure relief of the

safety valve is not detected;

The safety valve pipeline is blocked;

Safety valve failure;

Check and clean the safety valve pipeline;

Replace the safety valve;

real-time detection

code E26/27

E26 judges that the condition is that the inner chamber pressure sensor is open

E27 judges that the condition is short circuit of inner chamber pressure sensor

The pressure sensor is broken or has poor contact;

The corresponding pressure port of PLC is broken, replace or repair the PLC;

Check the PLC terminal and use a multimeter to measure whether there is DC24V. If yes, the pressure sensor is broken;

Check the PLC terminal and use a multimeter to measure whether there is DC24V. If there is no DC24V, replace the PLC for repair;

real- time detectio n

code E28

Fault judgment conditions: ①: When the interlocking motor is not running, the interlocking in-place microswitch and the interlocking release in-place microswitch are detected to be connected at the same time; ②: When the interlock motor is

The interlock in place microswitch is damaged;

Interlocking motor is stuck and does not operate;

Check whether the manual interlock in place switch and interlock release in place switch are normal, or replace the microswitch;

Check whether the motor can rotate normally, or replace the interlocking

real-time detection

started, it is not detected that the interlock in place microswitch is connected for a certain time; ③: The interlocking motor has not detected that the interlocking release in place microswitch is connected for a certain time at the beginning;

3. Motor power supply line fault, PLC damage;

motor;

3. Check whether the PLC does not normally output 24V to the relay when opening or closing the cover interlock action, replace or repair the PLC, and the circuit does not supply 220V voltage to the motor,

then check whether the circuit is abnormal

code E36

Optional: water source pressure sensor fault;

The tap water pressure is insufficient, check whether the water pressure is normal;

Water source pressure sensor fault;

The corresponding pressure port of PLC is damaged

Check whether the water source valve is open and whether the pressure is normal;

Replace the water source pressure sensor;

Replace or repair the corresponding port or module of PLC

real-time detection

code E43

Fault judgment condition: door opening and closing interlock system fault

The interlock motor is on, and the microswitch action of the open position is not detected;

The door lock motor is opened, and the door pin microswitch action is not detected;

The interlock motor is on, and the microswitch action of closing in place is not detected

The microswitch is damaged or not adjusted in place;

The motor is stuck or damaged;

real- time detectio n

code E46

Fault judgment conditions:

Evaporator pressure sensor fault; Open/short circuit

Sandwich pressure sensor failure; Open/short circuit

The pressure sensor is broken or has poor contact;

The corresponding pressure port of PLC is broken, replace or repair the PLC;

Check the PLC terminal and use a multimeter to measure whether there is DC24V. If yes, the pressure sensor is broken;

Check the PLC terminal and use a multimeter to measure whether there is DC24V. If there is no DC24V,

replace the PLC for repair;

Serial no.

Picture

Description

1

PLC

The original machine photo and software version number are required to order PLC accessories

2

circuit breaker

3

Pressure switch

4

temp control switch

5

Solid-state relay

6

KM1 contactor

7

Solenoid valve

8

Interlocking motor

9

seal ring

10

pressure gage

11

Safety valve

12

Heating pipe