Drying Oven BER-502

1. Safety warning before use

Must prohibit items

1. Do not store volatile, flammable, or explosive materials in this device, as it may cause explosions or fires.

2.Do not place this device in a place that is exposed to rain, moisture, or may splash water, otherwise it may cause accidents such as leakage, short circuit, or electric shock.

professional technicians are not allowed to disassemble, repair, or modify equipment, otherwise improper operation may cause fire or electric shock accidents to personnel。

Must comply with items

1.This device should be installed on a solid ground. If the ground is not solid enough or the installation location is not suitable, personnel may be injured due to equipment overturning.

2. Please use the dedicated power supply indicated on the nameplate of this device, and the power socket must be grounded. This device must be reliably grounded to prevent accidental electrical leakage that may cause electric shock or fire.

3. Before carrying out any repairs or maintenance on this equipment, be sure to disconnect the power supply to prevent electric shock or personal injury.

4. When repairing or maintaining equipment, it is necessary to wear gloves to prevent personal injury caused by touching edges or sharp corners.

5.If any abnormalities are found in the operation of the device, immediately unplug the power plug and stop the device from running. Operating under abnormal conditions may cause electric shock or fire。

2. Main features of product

1. Unique vertical dual duct circulating horizontal air supply, with uniform temperature distribution in the studio.

2. Digital tube display microcomputer intelligent PID temperature controller.

3. Standard fan switch, high brightness LED instrument operation indicator light, and high-temperature resistant blower motor.

4. New anti scald handle.

1. The temperature controller's color LCD screen displays the set value, measured value, and timing simultaneously on the screen.

A 2.4 speed 3-speed speed adjustable fan can adjust the required air volume according to different sterilization requirements of users, thereby sterilizing various types of samples.

3. Independent over temperature protection system: When the temperature in the studio exceeds the alarm value set by the instrument, cut off the main heating circuit to improve safety.

4. Independent temperature limiter: High precision digital display independent temperature limiter, set to limit the temperature of the studio, providing dual safety protection for the product.

3. Technical Specification

Table 1

4. Instrument operation and display instructions

Figure 1

Figure 2

1.Instrument operation and usage

Key Definition

1. [SET]: Set button. When the main interface displays the status, click this button to enter the temperature and time target value setting state. Long press this button for 3 seconds to enter the internal parameter setting state.

2. { }: Shift/self-tuning key. Clicking this key in the set state can cause the set value to shift and flash for modification.

In the main interface display state, long press this button for 6 seconds to enter the temperature self-tuning selection state.

3. [ ]: The decrease/rerun button can be used to decrease the set value by clicking or long pressing it in the set state.

Press and hold this button for 3 seconds in the main interface and at the end of the run state to restart the operation.

4. [ ]: Add/lock screen button, click or long press this button in the set state to gradually increase the set value.

If the lock screen function is selected, in the main interface display state, click this button to lock or unlock the screen.

Definition of digital tube display type instrument indicator lights:

1. [AT/F] indicator light: This light comes on when the temperature unit is Fahrenheit, flashes during the temperature self-tuning process, and goes off in other states.

2. [TIM] indicator light: It lights up when there is a timing setting, flashes during the reservation timing process, and goes off when there is no timing function.

3. [OUT] indicator light: When there is heating output, this light will turn on, and vice versa, it will turn off.

4. [LOC] indicator light: lights up in lock screen mode, otherwise goes off.

5. [SIN] indicator light: Invalid reservation.

6. [ALM] indicator light: When there is a temperature deviation alarm or abnormal temperature measurement, this light will turn on. When there is a temperature deviation alarm, this light will flash. Under normal conditions, this light will turn off.

Definition of LCD instrument indicator lights:

1. [Main interface] Indicator light: This light will light up in normal working state (not set state), and turn off in reverse.

2. [Lock] indicator light: It lights up in the lock screen state, and goes off in the opposite direction.

3. [AT] indicator light: During the temperature self-tuning process, this light flashes, otherwise it goes out.

4. [Alarm] Indicator light: When there is a temperature deviation alarm or abnormal temperature measurement, this light will turn on. When there is a temperature deviation alarm, this light will flash. Under normal conditions, this light will turn off.

5. [Heating] Indicator light: When there is heating output, this light will turn on, and vice versa, it will turn off.

6. [A] Indicator light: This light flashes during the reservation timing process, and goes off if not.

7. [RUN/STOP] indicator light: STOP will only light up after the timer ends, and RUN will light up in other states.

8. [↑/→/↓] Indicator lights: They flash respectively during heating, constant temperature, and cooling.

2. Operation and usage methods

In the main interface display state, click the [Set] button to enter the temperature setting state. The PV area displays the prompt SP, and the SV area displays the temperature setting value. The modification method is the same as above; Click the [Set] button again to enter the time setting state. The PV area displays the prompt ST, and the TIME area displays the time setting value; Click the [Settings] button again to exit this setting state, and the set values will be automatically saved.

Explanation: LCD type, "symbol" represents "time unit";

Digital type, with the symbol "TIME display area decimal point".

3. Reference and setting of internal temperature parameters

In the main interface display state, long press and hold the [Set] button for 3 seconds. The password prompt Lc will be displayed in the PV area, and the password value will be displayed in the SV area. Use [Increase], [Reduce], and [Shift] to modify the desired password value. Then click the [Set] button. If the password value is incorrect, the instrument will automatically return to the main interface display state. If the password value is correct, enter the internal parameter setting state, and click the [Set] button to modify each parameter in sequence. During this process, long press the [Set] button for 3 seconds to exit this state, and the parameter values will be automatically saved. Please refer to the table below for details:

Explanation: In the parameter table, the temperature setting value is abbreviated as SP, and the temperature measurement value is abbreviated as PV.

Table 2 (Parameter Table)

Table 3 (Parameter Table)

5. Instrument wiring diagram

:Represents the charged output, should be directly connected to the load.

" ":Represents the switch output without charge.

Figure 3

Figure 4

Figure 5

6. General faults and troubleshooting methods

Table 4