Shanghai Yinxi Biochemical Incubators Instructions

Instruction Manual for
Biochemical Incubators

Biochemical Incubators

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☆ Please read this Instruction Manual carefully before use.
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Summary

1. Product Features
   —Large color display screen:
   There are liquid crystal display with white characters on blue background, and the temperature and dynamic icon can directly indicate the running condition of incubator.
   —High precision:
   The temperature is accurately controlled by microcomputer, which ensures a highly precise constant temperature. The touch-button facilitates the temperature regulation.
   —Safe and reliable:
   Over-voltage protection, under-voltage protection, and double temperature limits (Alarms are given in case of a superhigh temperature (over 69.9°C) or an ultralow temperature (under 0C).
   The upper-limit protection can be provided when the temperature reaches 70°C.)
   —Environment-friendly and energy-saving:
   The insulating layer is integrally injected with hard PU, thus ensuring a long durability and a high effectiveness in energy saving.
   —Self-diagnosis
   The fault can be diagnosed automatically, and displayed visually. The supply voltage can be
   detected automatically, and alarms can be given.
   —Automatic printing and recordings
   The data printer or curve recorder prints or records the historical data or curve of temperature
   automatically for easy reference and filing.
   (The configuration is optional. Please mark it when placing an order. )
   —RS485 computer communication interfaces
   (The configuration is optional. Please mark it when placing an order. )

2. Application Scope and Main Purposes
   The Biochemical Incubator (referred to as the incubator, the same below) is a kind of biochemical test equipment providing heating and cooling functions. It is an ideal choice for tertiary institutions, environmental protection, scientific research, health, epidemic prevention, petroleum, chemical and other units. Widely used in BOD determination of water analysis, microbial, viruses, animals and plants, culture and preservation of the algae cells and tissue, plant cultivation and breeding and other constant-temperature tests.

3. Type and Specification:
   The incubator is controlled by the computer and has a variety of specifications. This manual applies to the 100L, 150L, 250L. 325L, 400L, 500L. 600L, 800L, 1000L, 1200L, 1500L types.

4. Composition and Meaning of Model

5. Service Environment
   It should be used under the following conditions:

6. Ambient temperature: 5 ~30°C;

7. Ambient humidity: <80%RH;

8. Range of atmospheric pressure: 86kPa ~ 106kPa.

9. Operating Conditions

10. It should be operated on an AC (220 £ 22) V (50 + 1) Hz power source.

11. Operating mode: Continuous operation.

Structural Features

• Body:
  The exterior housings are made of superior cold-roll steel sheets, and the inner housing is made of brushed stainless steel. The insulating layer is made of hard PU foam.

• Door:
  The door is mounted with hollow glass in its middle so as to facilitate observing the experiment effect. The insulating layer is made of hard PU foam. The door gasket is sealed together with the housing with magnetic adhesive.

• Refrigerating system:
  It is made up by the compressor, condenser, capillary tube, evaporator and so on.

• Control system:
  It is controlled by microcomputer.

• Heating system:
  It is made up by the racket-shaped or horseshoe-shaped heater.

• Air circulation system:
  The high-quality axial fan is used.

• Supporting net:
  The supporting net is a linear shelf which is made of round steel and sprayed with plastic. The height is adjustable

Technical Features

The incubator is a kind of high-precision and thermostatic device that can control heating and refrigeration designed for the required purposes (No. 2 in the summary).
The main technical parameters are shown in Table 1 and Table 2.
Table 1: Dimension of incubator Body

Table 2: Major Performance Parameters

The above parameters are measured in the 20℃±2℃ thermostatic chamber.
Note 1: When used in a low temperature, the following principle shall be followed:
operating temperature ≥ ambient temperature-20℃.
Note 2: When used in a low temperature, the following principle shall be followed: operating temperature ambient temperature-25℃.

Directions for Use and Precautions

1. Indication Panel: Definition of indicator light:

2. 【 】Indicator light: in normal working state (not set state), this light is on; otherwise it is off.

3. 【RUN】 Indicator light: when the timing comes to an end, this light is off; otherwise it is always on.

4. 【STOP】 Indicator light: when the timing comes to an end, this light is on; otherwise it is off.

5. 【 】Indicator light: when there is alarm of temperature deviation to the upper limit, or abnormal temperature measurement, this light will be on; when there is alarm of temperature deviation to the lower limit, this light will flash; under normal working condition, this lamp will be off.

6. 【 】Indicator light: when there is heating output, this light will be on; otherwise it will be off.

7. 【 】Indicator light: when there is refrigeration output, this light will be on, and it will flash in the process of starting delay, otherwise it will be off.

8. 【 】Indicator light: when there is lighting output, this light will be on; otherwise it will be off.

9. 【 】Indicator light: when there is defrosting solenoid valve output, this light will be on, otherwise it will be off.

10. Key definition****
    | key：| In normal display state, click this key to switch on and off the light.
    ---|---|---
    | key：| In normal display state, click this key to enter the modification interface of the setting values , and long press this key for 3 seconds to enter the modification interface of the parameter table.
    | key| In the setting state, click this key to make the setting values shift, flash and modify.
    | key：| In the setting state, click this key to increase the setting values.
    | key：| In the setting state, click this key to decrease the setting values.

11. Instructions of operation:
    ** 2.1 When the controller is powered on, the upper row of the display window displays [graduation number and instrument model], and the lower row displays [version number]. After about 3 seconds, it will enter the normal display state.
    2.2 The reference and setting of temperature and time
    Note:** the timing function and timing mode (timing / countdown) are optional. See the values of parameter NDT and NDE in internal parameter table-2.

12. If there is no timing function:
    Click the [setting] key to enter the temperature setting state, and the prompt “SP” will be displayed on the upper display window, while the setting temperature will be displayed in the lower row. The temperature can be modified to the required one through the [ increase ], [decrease] and [shift] keys; then click the [setting] key to exit the setting state, and the modified values will be automatically saved.

13. If there is timing function
    Click the [setting] key to enter the temperature setting state, and the prompt “SP” will be displayed on the upper display window, and the setting temperature ~ will be displayed in the lower row, and the modification method is the same as above; then click the[setting]key again to enter the time setting state, and the prompt “ST” will be displayed on the upper display window, while the setting time will be displayed in the lower row; and then click the [ setting ] key to exit the setting state, and the modified values will be automatically saved.
    ‘When the time is set to “0”, it means that there is no timing function, and the instrument operates continuously, and the setting values of temperature are displayed in the lower row of the display window; when the setting time is not “0”, the running time is displayed in the lower row of the display window, and the “time unit” is on. When the timing starts, the “time unit” flashes. ‘When the timing is over the operation completes, the lower row of the display window displays “End”, and after the buzzer beeps intermittently for EST seconds (refer to the internal parameter table-2 for details), it stops. After the scheduled operation is over, long press the [decrease] key for 3 seconds to restart the operation.
    2.3 Alarm for abnormal temperature
    If “—” is displayed on the upper row of the display window, it means that there is something wrong with the temperature sensor or the temperature exceeds the measuring range or the controller is broken; the controller will automatically disconnect the heating output; the buzzer will beep continuously and the alarm light will be on constantly. Please check the temperature sensor and its wiring carefully.
    2.4 When the upper deviation is over temperature and an alarm appears, the buzzer beeps and beeps, and the “ALM” alarm light is always on, disconnecting the heating output; when the lower deviation is over temperature and an  alarm appears, the buzzer beeps and beeps, and the “ALM” alarm light flashes; if the over temperature alarm generates due to the change of the temperature setting values, the “ALM” alarm light is not on, and the buzzer does not beep, either. 2.5 In the normal display state, long press the increase key for 2 seconds to manually lock the screen. Click the increase key to release the lock screen under the lock screen state; or in the main interface, the screen will be locked automatically after no key  operation for a certain period of time (refer to internal parameter TABLE-1, parameter LCT for details).
    2.6 When the buzzer beeps, you can press any key to eliminate it.

14. Internal parameter function
    In the normal display state, long press the key for 3 seconds, and the password prompt “LC” will be displayed in the display window:
    Internal Operation Parameters of the Control Panel****

Long press key for 3 seconds：LC=3
ALH| the upper deviation is over temperature and an alarm appears；| 0-50℃|
ALL| the lower deviation is over temperature and an alarm appears；| 0-50℃|
Lct| Time of locked screen ；| （-1～999 seconds）|
Ct| Compressor delays to start| (0～600 seconds)|
FIL| Filtering coefficient| (1～200)|
Lt| Lights delay to be off| (0～30 mins)|
Cnd| The compressor start- stop mode| (0～1)| Only valid when the compressor is working intermittently!
0: start and stop the compressor automatically (judged by the controller automatically)
1: Start and stop the compressor manually (using the value uP and dn )
uP| the threshold when the compressor starts| (-10.0～10.0℃)|
---|---|---|---
dn| the threshold when the compressor sops| (-10.0℃～uP)|
P| Proportional band| (0.1～80.0℃)| Time proportional effect regulation
I| Integral time| (1～2000 秒)| Integral effect adjustment.
d| Differential time| (0～1000 秒)| Differential effect regulation.
T| Control cycle| (1～60 秒)| Heating control cycle.
Pb| Deviation correction of the measured temperature| (-50.0～50.0℃)| It is usually used to correct the error of low temperature measurement.
Pb = actual temperature – instrument measurement
PL| The slope correction of measurement temperature| (-999～999)| It is usually used to correct errors in high temperature measurement.
PL = 1000 * (actual temperature value -instrument measurement value) / instrument measurement value
Adr| The address| (1～32) 1| The address of the machine.
Long press key for 3 seconds：LC=9
ndA| Temperature alarm mode| (0～1)0| 0 ：Only the upper deviation of temperature is over temperature limit, the alarm appears.
1: There are upper and lower deviation of temperature over temperature limit at the same time ,then the alarm appears.
FCH| Fan type| (0～1) 0| 0: Long shaft fan; 1: short shaft fan
ndc| The working mode of the compressor| (0～2)0| 0：The compressor only works intermittently;
1: The compressor judges the compressor balanced or intermittent work according to the value CP (see below) ; 2: The compressor judges the compressor balanced or
intermittent work according to the value Htd (see below) .
CP| The fixed switching point of the working mode of the compressor| (0～200.0℃)30.0| When “NDC = 1”,
If “the temperature setting   value≥ CP”, the compressor works intermittently; otherwise it works in balanced mode.

Htd

| The automatic switching point of the working mode of the compressor| (-50.0～50.0℃) 0.0| When “NDC = 2”,
If “the setting value of the temperature   ≥ ambient temperature +  HTD”, the compressor works intermittently; otherwise it works in balanced mode.

AnP

| The temperature point where the compressor is forbidden to work|

(0～200.0℃)60.0

| When “the measured value of temperature ≥ ANP”, the compressor is absolutely forbidden to work.
CnP| The temperature point where the compressor is not on.| (0～200.0℃)42.0| When “the setting value of the temperature”≥CnP, only turn on the compressor once when the measured value of temperature is higher than the setting value of the temperature.
ndt| The timing function| (0～2)1| 0：No timing function; 1: constant temperature timing; 2: Startup timing
ndE| The timing mode| (0～1)0| 0: timing, that is, the cumulative time is displayed in the time bar of the main interface;
1: Countdown, that is, the time bar of the main interface displays the remaining time;
Hn| Time unit| (0～1) 0| 0 :Timing in minutes
1: timing in hours
SPd| The deviation of constant temperature|

(0.1～50.0℃)0.5

| When the deviation of temperature between the measured value and the set value is within SPD, the constant temperature stage is entered.
EST| When the timing ends, it will prompt the time| (0～9999 seconds) 60| When the timing is over, the buzzer will prompt the time. Note: when “EST = 9999”, it means a permanent prompt.
EH| Whether to continue constant temperature control at the end of timing| (0～1)0| 0: turn off all outputs after the timing is over;
1: After the timing is over, the constant temperature control is continued.
---|---|---|---
nP| The maximum power output| (0～100%)100| The percentage of the maximum power of the heating output.
Lco| When it is controlled by the low temperature, the deviation of stop heating| (-10.0～10.0℃) -0.5|

When “the measured value of temperature  ≥ the setting value of the temperature + LCO”, turn off the heating output.

SPL| The setting value of the minimum temperature| (-90.0～50.0℃) 0.0| The minimum value of the setting temperature.
SPH| The setting value of the maximal temperature| (SPL～200.0℃) 80.0| The maximal value of the setting temperature.
4. Precautions for Use

1. Denormal heating and refrigerating should not work at the same time. If the heating and refrigerating lights are on at the same time, the incubator may break down and should be timely overhaulled.
2. The built-in over-temperature (+4°C) protection circuit is provided for the temperature control part of the unit. In case of over-temperature, buzz will be sounded and the electric power will be cut off.
3. Do not impact the unit, or pull the probe in the unit, so as to avoid that it goes out of control.
4. There shall not be too much culture in the incubator, otherwise the air circulation inside will be affected.

Fault Analysis and Remo

Table 2 Analysis and Handling of Simple Faults

Fault Symptom| Analysis of Causes| Troubleshooting| Remarks
---|---|---|---
The power light isn’t working.| 1.There is no power supply in the socket. 2.The fuse protector blows out.| 1.Check the socket 2.Replace the fuse protector| Behind the unit
The unit can not refrigerate (or cool).| 1. The refrigeration light is off, indicating the circuit board failure.| 1. Replace the circuit board|
| 2. The refrigeration light is on, indicating the failure in the refrigerating system.

3.   The time delay for compressor startup or re-operation has not ended.

| 2.  Repair the refrigerating system
3.  Please wait for a moment.|
---|---|---|---
The unit does not heat (or temperature does not rise.).| 1.  The heating light is off, indicating the circuit board failure.
2.  The heating light is on, indicating the blowing out of heating tube.| 1. Replace the circuit board.
2.  Replace the heating tube.|
The heating or refrigeration light is on, but there is no sign of temperature rise or drop.| Circuit board failure| Replace the circuit board| In the instrument
The lighting tube is not on| The light tube or bracket is broken| Change the light tube or bracket|
The temperature keeps displaying as “—– “| There is a short circuit in the temperature probe or an open circuit in the leading wire.|

Replace the probe Pt100

|
The buzzer sounds, and the temperature exceeds the set values ±4℃.| The possible causes for incubator failure including:
1.  The incubator is not securely shut.
2.  The refrigerant leaks.
3.  The circulating fan does not work.
4.  Circuit board failure| 1.  Securely shut the door, and restart the unit after having the power off for two minutes.
2.  Find out the leaking points, carry out repairing welding and recharge refrigerant.
3.  Replace the circulating fan
4. Replace the circuit board|

Notes: In case the failures are not included in Table 3 or the above failures can not be removed, please contact the technical service department of our company or our maintenance points.

Maintenance

1. The incubator must be kept in a well-ventilated and dry place away from sunshine. The distance between the unit and the wall shall not be less than 10cm.
2. The incubator shall be equipped with a three-pin plug which shall be reliably grounded, in order to ensure the normal operation and personal safety.
3. It is not allowed to clean the inner and exterior surfaces of the incubator with acid, alkali and other corrosive substances for the sake of beauty. It can be cleaned with neutral detergent and then wiped with dry cloth.
4. When replacing the fuse protector, the one with the same blowing current and the same dimension as marked in the fuse protector shall be selected.
5. When the vibrator is not used, cut off its power.
6. The dirt on the condenser (at the back of the incubator) shall be cleaned every six months, so as to ensure a favorable heat dissipation during the operation.

Transport and Storage

1. Transport

2. Rough transport is not allowed.

3. During the transportation, the incubator shall be inclined at a angle less than 45 degrees. It is not allowed to place it flatwise or upside-down.

4. During the transportation of unpacked incubator, pay attention not to impact the refrigerating pipeline at the back of the incubator.

5. Storage
   In case the incubator is not used for a long time before or after unpacking, it shall be stored in a place with the following conditions.

6. Ambient humidity: 0～40℃

7. Relative humidity: ≤80%RH；

8. Range of atmospheric pressure: 86kPa～106kPa。

Out-of-box Audit

1. After unpacking the incubator, you shall take out the Instruction Manual to check whether all the attachments are complete and whether the product specification conforms to the Manual according to the “List of Attachments”.
2. Please inspect the operation of the incubator according to the Instruction Book.

List of Attachments

Special announcement

1. According to related regulations, the product, from the date of purchase, will be guaranteed for one year, except the man-made faults.
2.  Our company reserves the right to change the design of the product. The design is subject to change without prior notice.
3. The Instruction Manual covers the contents of technical instruction.
4. The version number of this instruction manual is V2019620.

10. The wiring diagram
Special reminder：

1. In order to reduce the interference to the instrument during wiring, please pay attention to the separation of strong current circuit (such as the power line and load line) and weak current circuit (such as the sensor signal line).
2. If the communication function is used, the communication data line must be far away from the strong current circuit.

Heat solid state
Power supply board
The dotted line indicates the internal connection of the circuit board
15-17 terminals are not charged Alarm relay
Normally closed point Normally open point
illumination
Defrosting solenoid valve Relay
Cooling
Heating
Shanghai Yandi Instrument Co., Ltd
Professional Manufacturer of Temperature and Humidity Controller

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