Number

Information

Conditions & Suggested Measures

M1

The chamber door is open

The chamber door is open.

M2

The lamp chamber door is open

The lamp chamber door is open. If the lamp chamber door is already closed but this error occurs, check the interlock components of the lamp chamber door.

M3

Warning: Chamber door interlock problem

If the chamber door switches 1 and 2 are inconsistent, one of the interlock devices is damaged or needs adjustment.

M10

Test completed

If "Display Information Only" is selected, this message will appear when the test ends. The user needs to manually turn off the device.

M11

Test completed

If "Alarm" is selected, this message will appear when the test ends. An alarm will sound, but the device will continue to run.

M12

Test completed, shutdown

If "Stop" is selected, this message will appear when the test ends, and the equipment will shut down.

M13

Test completed, shutdown

If "Stop + Alarm" is selected, this message will appear when the test ends, and the equipment will shut down.

M14

Please replace the lamp tube

The lamp tube has been used for 3,000 hours.

M15

Please perform routine maintenance - refer to the instruction manual

The equipment has been in operation for 2,000 hours. For preventive maintenance information, refer to Section 16 of the product manual.

M16

Blackboard temperature too high XXX℃

The blackboard temperature is 3°C or higher than the set value and remains so for 55 minutes.

1.The blackboard temperature setpoint is too low relative to the chamber temperature setpoint.
2.The circulating fan (or drive) is damaged.
3.The fresh air fan (or drive) is damaged.

M17

The blackboard temperature is too low: XXX℃

The blackboard temperature is 3°C or lower than the set value and remains so for 55 minutes.

1.The blackboard temperature setpoint is too high relative to the chamber temperature setpoint.
2.The circulating fan (or drive) is damaged.
3.The fresh air fan drive is damaged.

M18

The chamber air temperature is too high: XXX℃

Please translate the following text into English.

The chamber air temperature is 3°C or higher than the set value and remains so for 55 minutes.

1.The setpoint is too low relative to the laboratory temperature.
2.The air heater relay is damaged (startup failure).
3.The fresh air fan (or drive) is damaged.
4.The circulating fan drive is damaged.

M19

The chamber air temperature is too low: XXX℃

Please translate the following text into English:

The chamber air temperature is 3°C or lower than the set value and remains so for 55 minutes.

1.The setpoint is too high relative to the laboratory temperature.
2.The air heater relay is damaged (shutdown failure).
3.The air heater is damaged.
4.The fresh air fan drive is damaged.
5.The circulating fan (or drive) is damaged.

M24

When an alarm occurs, the laboratory temperature is XXX℃

When this message appears, it is accompanied by one or more error messages. This information helps with diagnosis, as the laboratory temperature may be the cause of chamber temperature or humidity failures.

M25

The temperature of the main board is too high: XX℃

The temperature of the main board is higher than the maximum allowable temperature.

Move the Q-SUN to an air-conditioned room.

M26

Fault in the lamp rectifier fan

1.The fan is damaged.
2.The fan relay is damaged.
3.The air flow switch is damaged.

M27

Lamp tube/rectifier fan is on: should be off

1.The fan relay is damaged.
2.The air flow switch is damaged.

M30

Replace the battery

The voltage of the main board battery is too low. Please replace the battery.
Note: Dispose of old lithium batteries in accordance with local regulations and ordinances.

M31

Calibrate the light sensor

The lamp tube has been used for 500 hours. Please recalibrate the sensor.

M33

Incorrect irradiance calibrator: UC20/340 should be used

A 420 nm or TUV model is being used, but a 340 nm sensor is installed on the Q-SUN.
Use a UC20/340 calibrator.

M34

Incorrect irradiance calibrator: UC20/420 should be used

A 340 nm or TUV model is used, but a 420 nm sensor is installed on the Q-SUN.
Use a UC20/420 calibrator.

M35

Incorrect irradiance calibrator: UC20/TUV should be used

A 340 or 420 nm model is used, but a TUV sensor is installed on the Q-SUN.
Use a UC20/TUV calibrator.

M43

Spray is off: should be on

The Q-SUN is running the spray step, but the spray is off. Possible causes are:

1.Water supply is turned off.
2.Solenoid valve is damaged.
3.Flow switch is damaged.

M44

Spray is on: should be off

The Q-SUN is not running the spray step, but the spray is on. Possible causes are:

1.Solenoid valve is damaged.
2.Flow switch is damaged.

M46

Atomizer water level is too low

The water level in the humidifier tray is too low. Check the water supply system; see Section 5.4 of the product manual for details.

M49

Power interruption

This message indicates that the power was disconnected and then restored during equipment operation.
This message will appear regardless of the cause of the power outage, including the user turning off the power manually while the equipment is running.
To avoid an M49 error when the Q-SUN is powered back on, always click STOP before turning off the Q-SUN's power.

M50

The humidity in the chamber is XX% too high

The humidity in the chamber is 5% or more higher than the set value.

M51

The humidity in the chamber is XX% too low

The humidity in the chamber is 5% or more lower than the set value.

M52

The blackboard temperature deviates by XXX℃

The blackboard temperature is 10°C higher than the set value and persists for 1 minute.

1.The blackboard temperature set value is too low relative to the chamber air temperature.
2.The circulating fan (or drive) is damaged.
3.The fresh air fan (or drive) is damaged.

M53

The chamber air temperature deviates by XXX℃

The chamber air temperature is 10°C higher than the set value and persists for 1 minute.

1.The chamber air temperature set value is too low relative to the laboratory temperature.
2.The air heater relay is damaged (failure to turn on).
3.The fresh air fan (or drive) is damaged.
4.The circulating fan drive is damaged.

M56

The fan controller is damaged.

1.Input voltage fluctuation.
2.Excessively high room temperature.
3.Motor failure.
4.Fan controller failure.

M58

The turntable is rotating: should stop

Turntable relay failure.

M59

The turntable is stopped: should rotate

1.The turntable rotation sensor needs adjustment or is faulty.
2.Turntable relay failure.
3.Turntable gear motor failure.
4.Chamber door interlock failure.

M60

Low irradiance: Chan x

The lamp irradiance is 5% lower than the set value. Please replace the lamp and recalibrate.

M61

Lamp failure: Chan x

Irradiance is 30% lower than the set value.

1.The lamp is burned out.
2.Rectifier failure.
3.Lamp relay failure.
4.Trigger electrode failure.

M63

Excessive irradiance: Chan x

The irradiance is 5% higher than the set value.

1.Incorrect connection between the rectifier and the main board circuit.
2.Rectifier failure.

M64

The lamp is on: should be off

The Q-SUN is running the dark step, but the main board detects irradiance higher than 0.05 W/m². Please replace the lamp relay.

M65

The alternating current (AC) voltage exceeds the rated range

This message indicates that the rectifier may have turned off due to low voltage. Check the Xe-2 power supply.

M67

Lamp relay failure

During the "relay self-check" process, the irradiance is higher than 0.05 W/m².

1.Lamp relay failure.
2.Please replace the lamp relay.

M68

Operation relay failure

During the "relay self-check" process, the irradiance is higher than 0.05 W/m².

1.Operation relay failure.
2.Please replace the operation relay.

M70

Blackboard temperature sensor failure XXX℃

The blackboard temperature is below 3°C or above 180°C.

1.Ensure the connector is properly connected.
2.Replace the blackboard temperature sensor.

M72

Air temperature sensor failure

The air temperature is below 3°C.

1.Ensure the connector is properly connected.
2.Replace the air temperature sensor.

M74

Laboratory temperature sensor failure

The laboratory temperature is below 3°C.

1.Ensure the connector is properly connected.
2.Replace the laboratory temperature sensor.

M77

Temperature and humidity sensor failure

The reading of the temperature and humidity sensor is below 3%.

1.Ensure the connector is properly connected.
2.Replace the temperature and humidity sensor.

M79

Exceeded maximum calibration time

The calibration time is limited to two hours.

If the calibration is not completed, please restart the Xe-2 and complete the calibration within two hours.

M80

Flash failure

The program checksum test has failed. Please contact Q-Lab Maintenance and Equipment Technical Support.

M81

Flash data corruption

The parameter and setting data are corrupted. Please contact Q-Lab Maintenance and Equipment Technical Support.

   M82

RAM damage, RAM reloading

RAM data error. Please contact Q-Lab Maintenance and Equipment Technical Support.

M90

Please replace the temperature and humidity sensor

Please replace the temperature and humidity sensor.

M101

SD card missing

The SD card on the main board is missing or not properly installed. Please contact Q-Lab Maintenance.

M103

System automatic reboot

Q-SUN has automatically rebooted to avoid potential issues during operation. Please contact Q-Lab Maintenance.

M104

The software has been successfully installed

The software is successfully installed.

M900

Communication failure of the status screen

Communication between the motherboard and the status screen has been interrupted. The device will enter single-screen mode.

M901

Communication failure of the main menu screen

Communication between the main board and the main menu screen has been interrupted. The device will enter single-screen mode.

M902

Communication failure of the motherboard

This message will appear on the screen where error reports M900 or M901 have occurred.