Number

Information

Notes

M1

CHAMBER DOOR IS OPEN

The test chamber door is not properly closed. Please close the chamber door.

If the M1 message still does not disappear after the chamber door is properly closed, the door interlock switch is faulty.

M2

LAMP DOOR IS OPEN

The door of the lamp chamber is not properly closed. Please close the chamber door.

If the M2 message still does not disappear after the chamber door is properly closed, the door interlock switch is faulty.

M5

BLACK PANEL SENSOR NOT CALIBRATED

The blackboard temperature sensor is not calibrated.

M7

AIR TEMP SENSOR NOT CALIBRATED

The chamber temperature sensor is not calibrated.

M10

END OF TEST

The test is completed. This is just an information message.

If "MESSAGE ONLY" is selected in the program, this message will appear when the test ends, and the test will continue.

The user must manually stop the machine.

M11

END OF TEST

The test is completed. This is just an information message。

If "ALARM" is selected in the program, this message will appear when the test ends, and the test will continue.

The user must stop the machine manually.

M12

END OF TEST SHUTDOWN

The test is completed. Power off. This is just an information message.

If "STOP" is selected in the program, this message will appear when the test ends, and there will be no alarm sound.

Automatic shutdown.

M13

END OF TEST SHUTDOWN

The test is complete. Power off. This is just an information message

If "STOP+ALARM" is selected in the program, this message will appear when the test ends, and there will be an alarm sound.

Automatic shutdown.

M14

TIME TO REPLACE LAMPS

Lamp replacement is required. This message will appear after the lamp has been used for 1,500 hours. Replace the lamp.

M15

TIME FOR ROUTINE SERVICE-

(After this message last appeared) The equipment has been running for 2,000 hours.

 Please refer to the maintenance content in Chapter 13.

M16

BLACK PANEL TEMP TOO HOT XXX℃

The temperature of the blackboard temperature sensor is too low. This message appears when the sensor temperature is more than 3℃ below the set value and lasts for more than 55 minutes. Possible causes include：

1. The temperature set value of the blackboard temperature sensor is too high relative to the chamber temperature.

2. There is a problem with the circulating air fan or its drive.

3. There is a problem with the fresh air fan or its drive.

Consult the Customer Service Department of Q-LAB Corporation.

M17

BLACK PANEL TEMP TOO COLD XXX℃

The temperature of the blackboard temperature sensor is too low. This message appears when the sensor temperature is more than 3°C below the set value and lasts for more than 55 minutes. Possible causes include:

1.The temperature setpoint of the blackboard temperature sensor is too high relative to the chamber temperature.

2.There is a problem with the circulating air fan or its drive.

3.There is a problem with the fresh air fan or its drive.

Consult the Customer Service Department of Q-LAB Corporation.

M18

CHAMBER AIR TEMP TOO HOT XXX℃

The temperature of the chamber temperature sensor is too high. This message appears when the sensor temperature is more than 3°C above the set value and lasts for more than 55 minutes. Possible causes include:

1.The set value of the chamber temperature is too low relative to the laboratory temperature.

2.There is a problem with the heater relay.

3. There is a problem with the fresh air fan or its drive.

4. There is a problem with the circulating air fan or its drive.

Consult the Customer Service Department of Q-LAB Corporation.

M19

CHAMBER AIR TEMP TOO COLD XXX℃

The temperature of the chamber temperature sensor is too low. This message appears when the sensor temperature is more than 3°C below the set value and lasts for more than 55 minutes. Possible causes include:

1. The set value of the chamber temperature is too high relative to the laboratory temperature.

2. There is a problem with the heater relay.

3. There is a problem with the heater.

4. There is a problem with the drive of the fresh air fan.

5.There is a problem with the circulating air fan or its drive.

Consult the Customer Service Department of Q-LAB Corporation.

M20

CHAMBER TOO HOT XX℃

Possible causes of excessively high temperature in the test chamber include:

1. There is a problem with the heater relay.

2.  There is a problem with the fan inside the chamber.

Consult the Customer Service Department of Q-LAB Corporation.

M21

CHAMBER TOO COLD XX℃

The temperature of the test chamber is lower than the minimum allowable temperature for the test. Possible causes include:

1. There is a problem with the heater relay.

2. There is a problem with the heater.

3. There is a problem with the fan inside the chamber.

Consult the Customer Service Department of Q-LAB Corporation.

M24

LAB TEMPERTURE AT ALARM XX°C

The laboratory temperature may cause chamber temperature failures.

M25

CONTROLLER TOO HOT XX℃

The temperature of the controller is too high. The temperature of the controller exceeds the maximum allowable temperature.

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

Consult the Customer Service Department of Q-LAB Corporation.

M26

LAMP COOLING BLOWER FAILURE

Tube cooling fan failure. Possible causes include:

1. There is a problem with the fan.

2. There is a problem with the fan relay.

3.  There is a problem with the air flow switch.

M27

LAMP COOLING BLOWER ON: SHOULD BE OFF

The tube cooling fan is still running: it should stop. Possible causes include:

1.There is a problem with the fan relay.

2. There is a problem with the air flow switch.

M28

HUMIDIFIER TOO HOT XXXC-MAY BE EMPTY

The humidifier is too hot. It may be out of water. Check the water level.

M29

HUMIDIFIER TOO COLD XXX℃

The temperature of the humidifier is too low. Check whether its heater is normal.

M30

REPLACE BATTERY

Replace the battery. The battery voltage in the control area is too low.

Replace the battery. Note: Please dispose of lithium batteries in compliance with local regulations.

M31

CALIBRATE LIGHT SENSORS

The lamp has been used for 500 hours. Calibrate the sensor.

M33

WRONG RADIOMETER:SHOULD BE CR20/340

The calibration instrument model is incorrect. A 420nm or TUV type was used, but a CR20/340 type calibration instrument should be used.

M34

WRONG RADIOMETER:SHOULD BE CR20/420

The calibration instrument model is incorrect. A 340nm or TUV type was used, but a CR20/420 type calibration instrument should be used.

M35

WRONG RADIOMETER:SHOULD BE CR20/TUV

The calibration instrument model is incorrect. A 340 or 420 nm type was used, but a CR20/TUV type calibration instrument should be used.

M38

LIGHT SENSORS DO NOT MATCH

The light intensity sensors are incompatible. The light intensity sensors in the test chamber are not completely identical. It is necessary to ensure that all light intensity sensors are completely identical.

M43

WATER SPRAY OFF：SHOULD BE ON

Water spray stopped: it should be turned on. Possible causes include:

1. No water supply.

2. There is a problem with the solenoid valve.

3. There is a problem with the flow switch.

M44

WATER SPRAY ON ：SHOULD BE OFF

Water spray is on: it should be stopped. Possible causes include:

1.There is a problem with the solenoid valve.

2. There is a problem with the flow switch.

M45

HUMIDIFIER WATER LEVEL TOO LOW

The water level in the humidifier is too low. Possible causes include:

1.No water supply.

2. There is a problem with the float switch.

M50

CHAMBER HUMIDITY TOO HIGH XX%

The humidity inside the chamber is too high. This message appears when the humidity is 5% higher than the set value.

M51

CHAMBER HUMIDITY TOO LOW XX%

The humidity inside the chamber is too low. This message appears when the humidity is 5% lower than the set value.

M52

BLACK PANEL TEMP RUNAWAY XXX℃

The blackboard temperature is too high. The blackboard temperature exceeds the set value by 10 °C for more than 1 minute. Possible causes include:

1. The set value of the blackboard temperature is too low relative to the set value of the chamber temperature.

2. There is a problem with the circulating air fan or its drive.

3. There is a problem with the fresh air fan or its drive.

Consult the Customer Service Department of Q-LAB Corporation.

M53

CHAMBER AIR TEMP RUNAWAY XXX℃

The air temperature in the chamber is too high. The chamber air temperature exceeds the set value by 10°C for more than 1 minute.

Possible causes include:

1. The set value is too low relative to the laboratory temperature.

2. There is a problem with the heater relay.

3. There is a problem with the fresh air fan or its drive.

4. There is a problem with the circulating air fan or its drive.

Consult the Customer Service Department of Q-LAB Corporation.

M54

CHAMBER TEMP RUNAWAY XXX℃

The chamber temperature is too high. The chamber temperature exceeds the set value by 10°C for more than 1 minute.

Possible causes include:

1.The set value is too low relative to the laboratory temperature.
2.There is a problem with the heater relay.
3.There is an issue with the chamber fan.
4.There is a problem with the power supply board.

Consult the Customer Service Department of Q-LAB Corporation.

M56

BLOWER CONTROLLER FAULT

The fresh air fan is not working because its controller is faulty.

Possible causes include:

1.Unstable input voltage.
2.Excessively high room temperature.
3.A broken motor.

Consult the Customer Service Department of Q-LAB Corporation.

M60

LOW IRRADIANCECHANGE LAMP

The light intensity is too low. The light intensity is 5% lower than the set value. Replace the lamp and recalibrate.

M61

LAMP OUT

Lamp failure. The light intensity is 30% lower than the set value. Possible causes include:

1.The lamp is burned out.
2.There is a problem with the ballast.
3.There is an issue with the lamp relay.
4.There is a problem with the trigger electrode.

M63

IRRADIANCE TOO HIGH

The light intensity is too high. The light intensity is 5% higher than the set value. Possible causes include:

1.The dimming signal cable between the ballast and the controller is not properly connected.
2.There is a problem with the ballast.

M64

LAMPS ON: SHOULD BE OFF

Xenon lamp is on: it should be off. The Q-Sun is in a dark cycle, but the controller sensor detects light intensity greater than 0.05W/m².

 Replace the lamp relay.

M67

LAMP RELAY STUCK ON

The lamp relay is stuck in the engaged position. During "relay diagnosis", the light intensity of the lamp is greater than 0.05W/m².

There is a problem with the lamp relay. Replace the relay.

M68

RUN RELAY STUCK ON

The power relay is stuck in the engaged position. During the "relay diagnosis", the light intensity of the lamp is greater than 0.05W/m².

The power relay is broken. Replace the relay.

M69

RELAY CHECK IN PROCESS

Relay diagnosis in progress.

This message is displayed during the M67 or M68 diagnostic process and serves only as an indication.

M70

BLACK PANEL TEMP SENSOR FAIL

The blackboard thermometer is faulty. The blackboard temperature is below 3°C. The blackboard temperature sensor is broken;

replace it.

M72

AIR TEMP SENSOR FAIL

The air temperature sensor is faulty. The air temperature is below 3°C. The air temperature sensor is broken; replace it.

M74

LAB TEMPERATURE SENSOR FAIL

The laboratory temperature sensor is faulty. The laboratory temperature is below 3°C. The laboratory temperature sensor is broken; replace it.

M76

HUMIDIFIER TEMP SENSOR FAIL

The humidifier temperature sensor has a fault. The temperature of the humidifier temperature sensor is below 3°C.

Replace the humidifier temperature sensor.

M77

RH SENSOR FAILURE

The relative humidity sensor is faulty. The reading of the relative humidity sensor is less than 3%.

Replace the sensor.

M80

FLASH MEMORY FAILURE

Program verification error.

Consult the Customer Service Department of Q-LAB Corporation.

M81

FLASH DATA CORRUPT

Parameter and system data errors.

Contact the Customer Service Department of Q-LAB Corporation.

M82

RAM CORRUPTED, RAM RELOADED

Memory data error, data needs to be reinstalled. Contact the Customer Service Department of Q-LAB Corporation.