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13 

 

 
Alternatively, if the set temperature is not so low as critical, in most cases, manual defrosting 
will be adequate. 
 

c)  The  proper  of  defrosting  cycle  can  vary  upon  actual  environmental  conditions,  preset 

temperature  value and running time. We recommend defrost at least  1-2 times per day,  with 
3-5 minutes for each cycle. 

d)  If  after  a  defrosting  cycle,  there  is  still  some  ice  inside  the  evaporator  chamber  (normally  by 

long term, low temperature operation) the “defrosting timer” needs to be shortened and/or the 
“defrosting time” must be extended accordingly.   

e)  During the defrosting process, the actual temperature inside can have a temporary deviation of 

3°C to the set point. This is normal, so does not require any action. 
 

10.6 Explanation for setting Manual Defrosting cycle: 

Alternatively, during the operation, the unit can run a manual defrosting cycle when necessary. To 
activate the cycle, press        button and hold for 3 seconds, the unit will start manual defrost for set 
"defrosting period". To abort, press          button and hold for 3 seconds. Minimum time interval 
between two manual defrost cycles is 1 min. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 

 

Attention: 

 

1. 

The defrosting cycle will only be activated when the following requirement is fullfilled

Auto defrosting cycle

: when both set and actual temperature is at or below 

10

;

Manual defrosting cycle

: when actual temperature is at or below 10

2. 

The cooling system keeps running during defrosting cycle, while the motor fan stops.     

3. 

The temperature will silently overshoot during defrosting, and then be stabilized when 

defrosting terminates.     

4. 

For better temperature control during continuous low temperature operations, 

for example, below 10.0°C, the following operations are recommended: Set 
Defrost Timer: 

“3” hr, Defrost Period: “0.7” min; 

Weekly maintenance: Open the door and wipe off the condensation, set the 
temperature at top value “65°C” and let it run for at least 1 hour to further 
evaporate the condensations 

inside the chamber.

 

5. 

During defrosting cycle or heating up process, the drip tray should be place at the 

unit's rear end and emptied on a regular basis. 

 

 

Summary of Contents for ZWY-111B

Page 1: ...User s Manual This Manual applies to Modes ZWY 111B ZWY 211B ZWY 111G ZWY 211G ZWY 111C ZWY 211C ZWY 111D ZWY 211D ZWF 111 and ZWF 211 Economic Horizontal Shaking Incubator...

Page 2: ...agriculture It is widely used for cell culturing hybridization cell aeration and solubility studies Etc Since the date of your purchase of this product after sale service will always be close to you t...

Page 3: ...r is needed 6 A surge protector is recommended to avoid power related faults 7 In case of malfunction or burning smell the unit must be unplugged immediately Use a circuit breaker to cut off the power...

Page 4: ...orm is still moving do not open the lid too much or too long as this might affect the temperature inside 8 The incubator must be kept away from volatile flammable explosive liquids or gases 9 Please k...

Page 5: ...__ 10 9 Temperature Speed Alarm Settings _____________________________ 11 10 Refrigeration Defrost Settings ________________________________ 12 11 Temperature Calibration______________________________...

Page 6: ...r in refrigerated units only has an independent overload protection CFC free refrigerant which causes no damage to ozone layer Applies on ZWY 2 ZWF 2 models Large doublefold tempered glass window and...

Page 7: ...64 82 82 66 100 ml 64 82 82 66 250 ml 40 45 52 45 500 ml 28 33 38 32 750 ml 23 24 26 23 1000 ml 15 15 22 15 2000 ml 11 12 11 3000 ml 8 11 11 5000 ml 6 6 6 Test tube 18ml 208 208 208 208 Inner dimensio...

Page 8: ...n Hold this button for 2 seconds to turn the unit on off the standby mode Temperature button Press this button to display the actual temperature value and the set temperature in turns Speed button Pre...

Page 9: ...amber is deviated over the preset alarm limit the indicator flashes and the alarm beeps Heating indicator When the heater is connected with power supply this indicator will be light This indicator wil...

Page 10: ...eep unscrewing screwing the adjusting bolt on the front left corner with the spanner until the unit is elevated leveled and sits firmly on the four blocks 4 2 The shaking mechanism of all reciprocal s...

Page 11: ...the current status of temperature retaining Keep Temp Mode function press Increase or Decrease to change the setting 6 2 Press Set confirm to exit to the home page 1 Display current control mode and t...

Page 12: ...imer page press Increase or Decrease to change the value if necessary If Timer is set as 0 the unit will keep running continuously 7 2 Press Set confirm to exit to the home page Special Attention 1 Th...

Page 13: ...ess Increase or Decrease to change the time press Set confirm to save and switch to year setting page press Increase or Decrease to set the year and press Set confirm again to save and switch to the m...

Page 14: ...Increase or Decrease to change the value 9 3 Press Set confirm to exit to the home page Special Attention 1 Deviation alarms can only be activated when unit is running and once actual temperature or...

Page 15: ...ss the Set Confirm button to confirm and store the changed value 10 5 Explanation for setting auto defrosting cycle a Defrost Timer is the time interval between two cycles For example if this is set a...

Page 16: ...it will start manual defrost for set defrosting period To abort press button and hold for 3 seconds Minimum time interval between two manual defrost cycles is 1 min Attention 1 The defrosting cycle wi...

Page 17: ...ture should have changed due to the calibration Waiting for another one hour to let the temperature stabilize again at 37 C and check the thermometer value again and calculate the new difference f if...

Page 18: ...tton if the symbol A is displayed on the lower left corner of the screen it means the non volatile memory function has been active 13 Setting of communication address for RS485 connection Opt If the R...

Page 19: ...on within 3 seconds the remaining operating time will be cleared to zero Press the Start Stop button once more and the unit starts again to count down from the preset operation time 15 5 While the uni...

Page 20: ...through the opening 16 5 Use the Allen key to loosen the A central fixing nut 16 6 Use the 8 10 spanner to hold the B adjusting bolt as still in the meantime loosen the C safety nut with 17 19 spanne...

Page 21: ...cold air is excessive Close a part of the ventilation opening The ventilation fan is broken Notify the distributor to replace the fan The heater does not work Notify the distributor to repair the heat...

Page 22: ...he equipment if it does not work Notify the distributor The equipment causes a strange loud noise The equipment is not placed horizontally Adjust the left back foot to make the equipment stable The fi...

Page 23: ...20 18 Electronic Control System...

Page 24: ...e the parts free of charge Your distributor will provide professional workmanship and will repair the unit without any charge When this one year warranty is expired we will continue to provide you wit...

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