lbx T1 INC-H Refrigerated Incubator with Humidity Control User Manual

user manual

INC-H Refrigerated Incubator with Humidity Control
Please read the User Manual carefully before use, and follow all operating and safety instructions!

Preface

Thank you for purchasing our product. Users should read this manual carefully, follow the instructions and procedures, and be aware of all the preventive measures when using this instrument.

Service
If help is needed, you can always contact your dealer or Labbox via www.labbox.com.
Please provide the customer service representative with the following information:

• Serial number
• Description of the problem
• Your contact information

Warranty

This instrument is guaranteed to be free from defects in materials and workmanship under normal use and service for a period of 24 months from the date of invoice. The warranty is extended only to the original purchaser and shall not apply to any product or parts that have been damaged due to improper installation, improper connections, misuse, accident, or abnormal conditions of operation.
For claims under the warranty, please contact your supplier.

Introduction

The INC-H Refrigerated Incubator with Humidity Control is the ideal testing equipment for simulating natural environments. It comes with 30 segments of program memory and functions such as constant temperature, auto humidity control, day/night cycle, and over-temperature protection. This equipment can be used for a wide range of applications, including seed germination, seedling raising, plant growth, microorganism cell culturing, insect rearing, commercial medicinal testing, building and timber material performance testing, industrial product quality inspection, and constant temperature and humidity experiments.

Characteristics

1. The high-brightness large screen liquid crystal display panel and light-touch operational keys allow for easy viewing of cycle period, segments, time, temperature, and humidity. The device can be connected to a computer through a USB interface, ensuring that the entire experimental process is controlled safely. (The USB interface and software are optional accessories and must be purchased separately.)
2. The instrument has various anti-jamming measures and includes functions such as over-temperature protection, thermal resistor short-circuit protection, and delay protection to ensure reliable security during use.
3. The entire structure is made using advanced techniques, including a cold-rolled steel surface with electrostatic spraying for an attractive and durable finish.
4. The advanced air flue circulate mode ensures a balanced flow rate in the working room, preventing powdery substances and young plants from blowing away. The device includes a world-famous brand compressor and uses environmental protection refrigerant R134a to ensure safe and effective experiments.

Main Technical Parameters

ºC
Temperature

Distinguishability

| 0.1 ºC
Temperature Fluctuation| High temperature ±1 ºC; low temperature ±0.5 ºC
Humidity Range| 45 % ~ 90 % RH
Humidity Error| ±5 % RH
Heating Power| 1800W| 2000W
Interior Dimensions (mm)| 415350500| 490400750
Exterior Dimensions (mm)| 5715911051| 6466411301
Packaging Dimensions (mm)| 6766801235| 7517301490
N.W. (kg)| 69| 86
G.W. (kg)| 92| 114

1. Working Room Temperature Profile
   Temp.

Spot

| Temp.

( ºC)

| Temp.

Spot

| Temp.

( ºC)

---|---|---|---
①| 36.63| ⑤| 36.91
②| 36.98| ⑥| 36.86
③| 37.5| ⑦| 36.88
④| 37.33| ⑧| 36.64
⑨| 37.15| |

Diagram:

Note: The above specifications are tested with a chamber temperature of ≤25 ºC and are only applicable to our products.

2. Temperature and Humidity Diagram
   

Working Conditions

1. Ambient Temperature: 5 ºC ~ 32 ºC (e.g., if the set temperature is ≤10 ºC, the ambient temperature should be ≤28 ºC).
2. Relative Humidity: ≤80 % RH.
3.  Air Pressure: 86 – 10 Kpa.
4. Keep the climate chamber away from vibrations and corrosive gases.
5. Keep the container away from direct sunlight and other cooling and heating sources.
6. Keep it away from high concentrations of heat sources; install it horizontally and leave some space between the machine and wall.
7. Install it in a room with good ventilation.

Precautions

Safety

1. The device should be connected to an earthed power supply to ensure the safety of the machine and the experiment. Connect the power as required by the machine.
2.  This equipment should not be used for inflammable and explosive, poisonous, or highly corrosive experiments.
3. Ensure that the machine is installed horizontally. If the machine is newly installed, let it stand for 24 hours before using it for the first time.
4. Non-professionals are not allowed to disassemble or repair this machine.
5. Do not set the temperature too low when the temperature inside the container is ≥ 50 ºC to ensure the long service life of the compressor.
6. When an alarm is triggered, do not force start the machine until the problem is identified.
7.  Read the instruction manual carefully before operating the machine.

Operation

1. If starting up the machine for the first time, do not change any parameters unless allowed in the operation manual.
2. Turn off any unnecessary lights or humidifiers.
3.  During testing, if the temperature or humidifier is shut off for protection, set the humidifying parameters to 0 when not necessary.
4. The working room uses a vertical ventilation circulation mode, so do not overload the trays with too many items. The total burden area load should not exceed one third of the tray.
5.  If the testing environment temperature is over 35 ºC, or if the working room temperature is over 50 ºC, do not set a low temperature.
6. Do not use acids or alkalis to clean the inner and outer surface of the machine. Periodically clean it with neutral detergent and wipe it with a dry cloth.
7. Turn off the power when finished using the machine and keep the interior and exterior of the chamber dry and clean.

Operation Instructions

1. Instructions for Use
   • Before turning on the power for the first time, let the humidifier stand at room temperature for half an hour.
   • The recommended working environment for the humidifier is between 5 ºC and 40 ºC, with a relative humidity of less than 80% RH.
   • Use clean water at temperatures below 40 ºC.
   • If the humidifier has not been used for a long time, the water tank and sink must be cleaned before use.

2.  Installation and Operation Steps
   • Remove the two water boxes from the incubator chamber.
   • The smaller plastic tub is for wastewater and should be placed under the water valve. (In case the incubator will not be used for a long time, please open the water valve, and let all the water out.)
   • The bigger water reservoir with a cover is for pure water and should be positioned under the suction hole.
   • Open it and connect the two tubes.
   • Connect one tube from the suction hole through the hole in the cover and install the water filter at the end.
   • Connect the second tube from the drain hole to the water reservoir if your circulating water is pure and can be recycled.
   • However, if the water from the drain hole cannot be recycled, please connect it to the wastewater tub.
   • Connect the power supply and turn on the power switch (make sure it is dry and not turned on yet). The power LED light will turn on.
   • Adjust the fog volume control knob to select the appropriate fog volume.

3. Operation and Display Instructions of the Meter
   
   3.1 Definition
   T1 Reservation: T1 flashes when entering the reservation timing. The【（2）display window】shows the reservation countdown.
   T2 Heating: T2 lights up when heating is output.
   T3 Compressor: T3 lights up when the compressor starts up, and flashes when the compressor is waiting for the start-up delay.
   T4 Humidification: T4 lights up when humidification is output.
   T5 Daytime: T5 lights up when in daytime mode.
   T6 Night: T6 lights up when in night mode.
   T7 Timer: T7 flashes when the timer is running, and the【（2）display window】shows the timing countdown time of the timer.
   T8 Water shortage: T8 lights up when there is a water shortage, and flashes when there is a water shortage alarm.
   T9 Open the door: T9 flashes when the door is open.
   T10 Alarm: T10 lights up when there is an alarm of temperature and humidity, and flashes when entering the low temperature or high temperature protection state.
   T11 Lock the screen: T11 lights up when the screen is locked.
   T12 Addition of water: T12 lights up when the water pump is output.
   T13 Defrost: T13 lights up when defrost is activated.
   T14 Magnetic valve: T14 lights up when magnetic output is activated.
   T15 Illumination/sterilization: T15 lights up when illumination is output, and flashes when sterilization is activated.
   3.2 Display Window 【（1）display window】display: Period or segment values.
   【（2）display window】display: Timing or time setting.
   【（3）display window】display: Temperature measurement value.
   【（4）display window】display: Temperature setting value.
   【（5）display window】display: Humidity measurement value.
   【（6）display window】display: Humidity setting value.
   【（7）display window】display: Illumination value or heating output power.
   3.3 Definition of Keys
   【 LOCK 】 key| Under normal display, press and hold this button for 2 seconds to manually lock or unlock the screen.
   ---|---
   【 ILLUMINATION 】 key| Under normal display, clicking this button switches the illumination.

   ---

【 SET 】 key

| Under normal display, clicking the button enters the setting value modification interface. Press and hold this button for 3 seconds to enter the parameter table modification interface.

【 SHIFT 】 key

| In the setting state, clicking this key shifts the set value, causing it to flicker and allowing for modification.
Under normal display, if running in [day/night] mode, this key switches the
running state of day and night. If running in program mode, this key shifts the segments or cycles displayed.

【 INCREASE 】 key

| In the setting state, clicking this button increases the setting value. Under normal display, if there is a water shortage alarm, long-pressing this button cancels the alarm and continues to add water.
【 DECREASE/DEFROST 】 key| In setting state, clicking this button decreases the setting value. Under normal display, long-pressing this button turns on the defrost function manually.
【 R/S 】 key| In normal displaying state, clicking or pressing this button for a long time turns the controller on or off.

3.4 Operation and Use
3.4.1 When the controller is powered on, the【（3）display window】will show “PS” and the【（5）display window】will show “V06”. There will be a short alarm, and after 2 seconds, the controller will enter the normal display mode.

3.4.2 Modification of Setting Value

In the normal display mode, press the 【SET】button. The “TIME” and “SV” will flash at the same time. You can change the flashing value using the 【SHIFT】, 【INCREASE】, and 【DECREASE】 buttons. Press the 【SET】 button again to shift to the next value. After finishing the modification, press and hold the 【SET】 button for 1 second to exit the setting mode. In constant value mode, you can continuously press the 【SET】 button to change a set of data and then exit. After a short alarm, the controller will enter the normal display interface and keep the data automatically.
When the controller is running in program mode, press the 【SET】 button. The data of the segment will start flashing. At this time, use the 【INCREASE】 and 【DECREASE】 buttons to change the segment, where you can see the time, temperature, humidity, and illumination. Press the 【SET】 button again to change the data in the present segment. When the cursor returns to the segment value and flashes, modify the next segment value again.
When the controller is running in 【DAY/NIGHT】 mode, press the 【SET】 button, and “DAY” will flash. You can shift to “NIGHT” using the 【INCREASE】 and 【DECREASE】 buttons, and then “NIGHT” will flash. You can press the 【SET】 button to check the setting value and modify the setting value in 【DAY/NIGHT】 mode.
3.4.3 Set Segment Number or Cycles
In the no constant mode (see parameter list -1-U1 for details), when the controller is stopped, press the 【SET】 button for 3 seconds. The 【(1) display window】 will then show “Lc,” and the 【(2) display window】 will display the password number. Change the password number to 3 using the 【INCREASE】 and 【DECREASE】 buttons, and enter the mode of segment and cycle.
In the programmable mode, if the “PRO” prompt flashes, you can set the total segment number of running. Click 【SET】, and the “CYC” prompt will flash. You can then set the total cycle number of running (when the cycle number is 0, the controller will run all the time). After finishing the setting, press the 【SET】 button for 3 seconds to exit, and the parameters will be stored. In the DAY/NIGHT mode, the total segment number cannot be set; only the cycle number can be set.
3.4.4 Start and Stop
To start the controller, press the 【R/S】 button U7 second (see user parameters table -1 for details). The 【(2) display window】 will show the remaining time during operation. When the time is up, the controller will stop and the buzzer will sound, U9  (see user parameters table -1 for details). The 【(2) display window】 will display “End”. Alternatively, to stop the controller, press【R/S】 U7 second for a long time and the 【(2) display window】 will display “OFF”.
In programmable mode, if the total segment number is more than 1, and in the mode of constant temperature and humidity (see parameter table -1-U5 and U6 for details), it is required to set each period of time before starting the operation. Note that starting the operation with a setting time of 0 is not possible.
3.4.5 Reservation Function
If the reservation function AP is enabled (refer to the user parameters table -7 for details), press 【SET】 again to set the reservation time in minutes. Otherwise, exit directly to the normal display interface. After setting the reservation time, press 【R/S】 to start. When the reservation time is counting down, you can enter the parameter table again to modify the reservation time. Or press 【R/S】 to stop the controller, which will automatically reset the reservation time to 0 and make it valid only once.
3.4.6 Fault Prompt
Temperature alarm: If there is an upper temperature deviation alarm, the unit “ºC” will flash quickly. If there is a lower temperature deviation alarm, the unit “ºC” will flash slowly.
Humidity alarm: If there is an upper humidity deviation alarm, the unit “%RH” will flash quickly. If there is a lower humidity deviation alarm, the unit “%RH” will flash slowly. If the display window labeled 【（3）】 shows “—”, it means that either the temperature sensor or the controller is faulty. Please carefully check the temperature sensor and its wiring.
3.4.7 Defrost Function
The defrost function can be turned on either automatically or manually. If you want to turn it on automatically (check the parameters in table-4 for details) and then set the interval time and duration of the defrost cycle. On the other hand, if you want to turn it on manually, click the 【DEFROST】 button in the main interface. Note that the duration of the manual defrosting time still depends on the time set in the parameter table, and the defrost function will end once the delay time has elapsed.
3.4.8 Power-off Memory Function
You can choose whether to enable the power-off memory function by modifying the power-off memory parameters (check “U2” parameters: internal parameters table-1).
3.4.9 Check and Set the Internal Parameters
In the normal display state, press 【SET】 for 3 seconds, and the 【(1) display window】 will display the password prompt “Lc”, and the 【(2) display window】 will display the password value. Input the correct password to enter the setting mode of internal parameters, and then click 【SET】 to modify each parameter. After that, press 【SET】 for 3 seconds, and the buzzer will give a short blast and exit. The parameters will be stored automatically.
Note: All internal parameters have been adjusted during factory testing.
It is forbidden to modify them except for the Sensor Correction parameter.

4. Parameters Table
   User Parameters Table -1

Parameter

Indication

| Parameter

Name

| Parameter Function Description| (Range) Factory

Value

---|---|---|---
Lc| Password| When “ Lc=9 ”, you can check and modify the

parameters.

| 0
**U1| ** Running mode| 0: Fixed value running mode.
1: Day or night mode, 0 ~ 99 cycles.
2: Program mode, programmable 1 ~ 30 period,
0 ~ 99 cycle.| ** (0～2) 0
U2**| Power off running mode| 0: No run.

1: Running from the first paragraph (day). 2: Running from outage time.

| (0～2) 2

U3

| ****

Timing correction

| Correction of the total timing error, corrected value = (running time in seconds – actual time in seconds) * 10 ÷ actual time in minutes.| (-999～999) 0
U4| Time unit| 1: minutes 0 ~ 9999; 2: hours 0 ~ 9999| (1～2) 1

**U5**

| Timing deviation of constant temperature| When starting the timing function, the difference between the measured temperature and the set value should be within U5.
Note: 0 means timing doesn’t need to judge the temperature.| ****

(0～10.0ºC) 0

**U6| ** Timing deviation of constant humidity| Start timing if the humidity measurement value is within U6 of the set value.
Note: 0 means timing doesn’t need to judge the humidity.| ** (0～50.0%) 0
U7| 【 R / S 】 available time| After pressing U 7 for a long time, 【 R / S 】 is available.| (0～10s) 0
U8| Lock screen time| Auto-lock screen time. 0 means no auto-lock screen time.| (0～300s) 0
U9**| Prompt time of end of the running| When the running finishes, the buzzer beeps.

Note: 0 means beep all the way.

| (0～300s) 0

UA

| ****

Illumination time

| When the lighting is turned on, the lighting time is automatically turned off.

Note: 0 means that the light must be turned off manually.

| ****

(0～9999min) 0

**Ub**

| ** Temperature of starting sterilizing| If the setting temperature is ≤ Ub, the sterilization function is turned on.
If the setting temperature is > Ub , the sterilization function is turned off.
Note:
According to Parameters-8, you can turn on or off the sterilization function.
-0.1 alarm of output humidity for sterilization relay.| ** (-0.1～50.0ºC) 0
Uc| IP| IP of this machine| (1～16) 1

Temperature Parameter Table -2

Parameter

Indication

| Parameter

Name

| Parameter Function Description| (Range) Factory Value
---|---|---|---
Lc| Password| “ Lc=103 ”, allows you to check and modify the parameters.| 0

TH

| ****

Upper deviation Over temperature alarm

| If the “measured value > setting value + TH ”, then the upper deviation alarm will sound, and the temperature and humidity output will be turned off. When the alarm is triggered, the temperature alarm relay will activate, the buzzer will sound, the alarm indicator will light up, the temperature unit will flash rapidly, and any button can be pressed to cancel the buzzer.| ****

(0～20.0ºC) 5.0

TL

| ****

Lower deviation Over temperature alarm

| If the “measured value < set value + TL”, the lower deviation alarm will sound. When the alarm is triggered, the temperature alarm relay will activate, the buzzer will sound, the temperature unit will flash slowly, and any button can be pressed to cancel the buzzer.
Note: this function is invalid when “TL=0”.| ****

(-50.0～0ºC) 0

Tb

| ****

Deviation correction

| Correct the error generated by the sensor when measuring low temperature; Tb = actual temperature value – meter measurement value.| ****

(-99.9～99.9ºC) 0

**TA| ** Slope correction| Correct the error caused by the sensor when measuring high temperature.  **TA = 1000 * (actual temperature value – meter measurement value) / meter measurement value.| **

(-999～999) 0

TP| Heating ratio| Adjust the time proportionally.| (0.1～50.0) 8.0
TI| Heating integral| Adjust the integral action.| (1～2000s) 500
TD| Heating differential| Adjust the differential action.| (0～2000s) 200
TT| Heating cycle| Adjust the heating control cycle.| (1～60s) 5

Tc

| Low temperature control Heat off| Non-heating point during low temperature control, only valid when the temperature setting is lower than the ambient temperature.| ****

(-2.0～0ºC)

-0.5

To| Heating power| Maximum percentage of the heating output power.| (0～100%) 100
**Tu| ** Cooling on| When the compressor is in the manual start/stop mode and in the off-type control, if the “measuring temperature ≥ set temperature + Tu”, the compressor is turned on.| (-10.0～10.0ºC) 0.6
**Tn| ** Cooling off| When the compressor is in the manual start- stop mode and in the off-type control, if the “measuring temperature ≤ set temperature + Tn”, turn off the compressor.| ** (-10.0～ uP ) 0.6
****TE| High temperature control Heat off| Heat off: Non-heating point during high temperature control, only valid when the temperature setting is higher than the ambient temperature.| ** (-10.0～10.0ºC) 5.0

Parameter

Indication

| Parameter

Name

| Parameter Function Description| (Range) Factory

Value

---|---|---|---
Lc| Password| To view and modify parameter values,

enter “Lc=203”.

| 0

HH

| ****

Upper deviation Over humidity alarm

| If the “humidity measurement value > set value + HH ”, an upper deviation alarm is triggered, and the super-wet alarm relay and humidity output are turned off. When the alarm is triggered, the humidity alarm relay has an output, the alarm indicator is on, and the humidity unit flashes rapidly.| ****

(0～50.0%) 20.0

HL

| ****

Lower deviation Over humidity alarm

| If the “humidity measurement value < set value + HL”, a lower deviation alarm is triggered. The humidity alarm relay has an output when the alarm is triggered, the alarm indicator is on, and the humidity unit flashes rapidly.

Note: this function is invalid when

“HL=0”.

| ****

(-50.0～0%) 0

Hb

| ****

Deviation correction

| Correct the error generated when measuring the sensor for low humidity. Hb = actual humidity value – meter measured value.| ****

(-99.9～99.9%) 0

HA

| ****

Slope correction

| Correct the error generated when measuring the sensor for high humidity. HA = 1000 * (actual humidity value – meter measurement value) ÷ meter measurement value.| ****

(-999～999) 0

HP| Humidification ratio| Time proportional adjustment.| (0.0～90.0) 10
HI| Humidification integral| Integral action adjustment.| (1～999s) 200
Hd| Humidification

differential

| Differential action regulation.| (0～999s) 30
HT| Humidification cycle| Humidification control cycle.| (0～60s) 3
Hc| Low humidity control Humidification off| Non-humidification point during low humidity control.| (-50.0～50.0%) 0.0
Ho| Humidification power| Maximum power percentage of

humidified output.

| (0～100%) 100

Hu

| ****

Dehumidification off

| When the compressor is in manual start/stop mode and the compressor is in off-type control, if “measuring humidity ≥ set humidity + Hu ”, turn on the compressor.| ****

( Hn ～20.0%)

-5.0

Hn

| ****

Dehumidification on

| When the compressor is in manual start/stop mode and the compressor is in off-type control, if “measuring humidity ≤ set humidity + Hn ”, turn off the compressor.| ****

(-20.0%～ Hu ) 3.0

HE

| ****

No humidification point

| When the compressor is working in the intermittent mode, the humidification can be stopped in advance by modifying the set value if the conditions are met.| ****

(0.0～10.0) 2.0

**HF| ** Low humidity No humidification point| When controlling for low humidity, if the humidity measurement value is ≥ humidity set value + HF, the controller will prevent humidification.| **** (-10.0～10.0%) -5.0
---|---|---|---

Compressor Parameter Table -4

Parameter Indication| Parameter Name| Parameter Function Description| (Range) Factory Value
---|---|---|---
Lc| Password| View and modify parameter values when “Lc=109”.| 0

C1

| Prohibit compressor Working temperature point| The compressor operation is absolutely prohibited when “temperature measurement ≥ C1”| **** (0～100.0ºC) 42.0

C2

| Do not open the compressor Working temperature point| When “temperature set value ≥ C2”, the compressor is turned on only when the temperature measurement value is higher than the temperature set value.| **** (0～100.0ºC) 42.0

C3

| Normally open temperature point| When “temperature set value ≤ C3”, the compressor operates in a balanced manner.| (-15.0～100.0ºC) 40.0
**C4| ** Normally open humidity point| When the “humidity set value ≤ C4”, the compressor operates in a balanced manner.
(The normal open temperature point and the normally open humidity point have one condition, and the compressor works in a balanced manner.)| ****

(0～100.0%) 10.0

**C5| ** Way of working| 0: Automatically obtain refrigeration and automatically obtain the dehumidification threshold. 1: Manually set the cooling and automatically obtain the dehumidification threshold.
Note: Only valid when the compressor is working in disconnected mode.| **** (0～3) 3

C6

| Compressor start delay| Compressor start delay protection time, the minimum time interval from compressor stop to restart.| (0～600s) 180
**C7| ** Defrosting method| 0: No defrosting function.
1: Electromagnetic valve defrosting. 2: Heating tube defrosting.
3: Independent heating tube defrosting.| ****

(0～3) 1

**C8| ** Defrost interval 1| Defrost time interval when “temperature set value ≤ 10.0 ° C”.
Note: 0 means there is no automatic cream in this section, it can be opened manually.| ****

(0～9999min) 180

**C9| ** Defrost interval 2| Defrost time interval when “10.0 ºC < temperature set value ≤ 20.0 ºC”. Note: 0 means there is no automatic defrosting in this section and it can be done manually.| (0～9999min) 240
---|---|---|---
**CA| ** Defrost interval 3| Defrost time interval when “20.0 ºC < temperature set value ≤ 30.0 ºC”. Note: 0 means there is no automatic defrosting in this section and it can be done manually.| ****

(0～9999min) 480

**Cb| ** Defrost interval 1| Defrost on time when “temperature set value ≤ 10.0 ºC”.
Note: 0 means no defrosting in this section.| (0～200s) 120
**Cc| ** Defrost time 2| Defrost opening time when “10.0 ºC < temperature set value ≤ 20.0 ºC”.
Note: 0 means no defrosting in this section.| ****

(0～200s) 120

**Cd| ** Defrost time 3| Defrost opening time when “20.0 °C < temperature set value ≤ 30.0 °C”. Note: 0 means no defrosting in this section.| (0～200s) 15
**CE| ** Solenoid valve function| -2: No Solenoid valve function.
-1: When the compressor needs to be turned on and the opening delay time is over, the solenoid valve is opened first, then the compressor is turned on again after 10 seconds.
0: Normally open solenoid valve mode. 1, 2: See CF parameters below for details.| (-2～2) -2
**CF| ** Solenoid valve on| If CE=0, when the “temperature measurement value <temperature set value-CF”, the solenoid valve is opened; when “temperature measurement value>temperature setting value+CF”, the solenoid valve is closed.
If CE=1, the solenoid valve is opened when “temperature set value ≥CF”, and the solenoid valve is closed when “temperature set value <CF”.
If CE=2, when the “temperature measurement value>temperature setting value+CF”, the solenoid valve is opened; otherwise, the solenoid valve is closed.| **** (-20.0～50.0ºC) 0

Internal Parameter Table -5

Parameter Indication| Parameter Name| ****

Parameter Function Description

| (Range)

Factory Value

---|---|---|---
Lc| Password| The parameter values can be viewed and modified when “Lc=209”.| 0
**P1| ** Illuminance selection| 0: no light; 1: total 3 levels.
2: total of 4; 3: total of 5.
4: total of 6 levels.
5: total of 10 levels (cold light source 0~10V output).| ** (0～5) 0
P2| Humidity selection| 0: no humidity; 1: only displays humidity; 2: humidity is controllable.| (0～2) 2
P3| Internal parameters| The reserved can be set.| (0～9999) 0
P4| Temperature Upper limit setting| ** Maximum temperature setting.| (P5～99.9ºC) 65.0

P5

| Lower limit temperature setting| Minimum temperature set point value.| (- 19.9～P4ºC) 0.0
**P6| Voltage upper limit of humidity input| Corresponding input voltage value when humidity is 100%.| ( P7~5000 mV) 3600
P7**| Lower voltage limit of humidity input| Corresponding input voltage value when humidity is 0%.| ( 0~P6 mV) 1000

P8

| **** Low temperature protection| When “temperature measurement value or temperature setting value ≤ P8”, humidity is not controlled, only temperature is controlled, and the alarm light flashes slowly.| (- 25.0～30.0º C) 0

P9

| High temperature protection| When “temperature measurement value ≥ P9”, the operation stops, all outputs are turned off, and the alarm light flashes quickly.| (0～105.0ºC) 100.0
**PA| Temperature filter coefficient| ** Adjust the temperature sensitivity.| (1～200) 20
Pb| Humidity filter coefficient| Adjust the humidity sensitivity.| (1～200) 20
**PC| ** Input selection| 0: If the door controller is connected, the door will open. If the water controller is connected, there will be a water shortage.
1: If the door controller is disconnected, the door will open. If the water controller is closed, there will be a water shortage.
2: If the door controller is connected, the door will be open. If the water level controller is disconnected, there will be a water shortage.
3: If the door controller is disconnected, the door will be open. If the water level controller is disconnected, there will be a water shortage.| (0～3) 0
**Pd| ** Water level delay Adding water time| If Pd>0, extend the Pd time and close the water after adding water.
If Pd < 0, water shortage is detected, and water is added after a delay of Pd time.| **** (-20～20s) 5
---|---|---|---

PE

| Humidity Decimal place selection| 0: No decimals.
1: Decimal display.| (0～1) 0
**PF| Temperature display insensitive area| ** Temperature display insensitive área.| (0～10.0ºC) 0.1
PH| Humidity display Insensitive area| **** Humidity display insensitive área.| (0～50.0%) 1.0

Reservation Settings -7

Parameter Indication| Parameter Name| Parameter Function Description| (Range) Factory Value
---|---|---|---
**Lc| ** Password| The parameter values can be viewed and modified when “ Lc=36 ”.| ****

0

**AP| ** Reservation setting| 0: reservation setting function off. 1: reservation setting function on.| (0～1) 0
**T_| ** Reservation time| When the AP value is set to 1, to be turned on, click the Set button again to set the appointment time.| (0～9999min) 0

Wiring Diagram

General Faults and Troubleshooting

is broken.
2.   The sensor wiring is off.
3.   The controller is broken| 1.   Replace the sensor.
2.   Check wiring and connect securely.
3.   Replace the controller.
Temperature    has   been   rising without control| 1. Controller wiring board is bad.| 1. Replace the controller wiring board.

The circulating fan does not work or has abnormal noise

| 1.   The motor is faulty.
2.   The motor capacitor is faulty.
3.   The wiring board of the controller is faulty.
4.    The blades of the motor fan are damaged.| 1.   Replace the motor.
2.   Replace the motor capacitor.
3.   Replace the wiring board of the controller.
4.     Replace the blades of the motor fan.
The temperature does not rise when the set temperature is higher than the measured temperature| 1. The heater is faulty.| 1. Replace the heater.

Poor cooling after long-term use

| 1.   The instrument’s condenser is too dusty.
2.    There is not enough refrigerant, and it needs to be refilled.| 1. Clean the dust on and below the condenser.
2.   Add refrigerant.
**** No refrigeration or temperature cannot be lowered| 1.   Check whether the compressor is running or damaged.
2.   Check whether the internal fan of the chamber is running or damaged.
3.   The compressor is running normally but there is no cooling effect.
4.   Confusion in instrument parameters.
5.   Poor ventilation in the lower part of the instrument.| 1.   Replace the compressor if it is damaged.
2.   Replace the motor and fan blades if they are damaged.
3.   Check for refrigerant leaks.
4.   Adjust all meter parameters to factory values.
5.    Leave a gap of 10 cm or more at the back and around the instrument for better ventilation.
Temperature overshoots too much| 1.     The    instrument’s    parameter settings are incorrect.| 1. Refer to the instructions and readjust the parameters.

Inconsistent sample culturing effect

| 1. Placing an excessive amount of sample in the work chamber can result in poor uniformity.| 1. Do not place more than 80% of the volume with sample.

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References

• Lab supplies - Labbox Export

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