Julabo FT402 Operating Manual Download Page 17

Immersion Coolers 

17 

 

6.3. 

Automatic / non-automatic start mode 

 

 

n

 

Keep depressed enter 

 and 

o

 

turn on the immersion cooler with the mains power switch. 
 

For a short while the LED temperature DISPLAY indicates the 
effective start mode: 

 

Ö

 

AUTOSTART on. 

 

Ö

 

AUTOSTART off.

 

 

NOTE:  

The immersion cooler has been configured and delivered by 
JULABO according to N.A.M.U.R. recommendations. This means for 
the start mode, that the unit must enter a safe operating state after a 
power failure (non-automatic start mode). This safe operating state is 
indicated by „OFF“ on the LED temperature display. A complete 
shutdown of the main functional elements is effected simultaneously. 
The values set on the immersion cooler remain stored, and the unit is 
returned to operation by pressing the start/stop key. 

Should such a safety standard not be required, the AUTOSTART 
function (automatic start mode) may be activated, thus allowing the 
unit to be started directly by pressing the mains power switch or 
using a timer. 

 

 

 

Warning:

  

For supervised or unsupervised operation with the AUTOSTART function, avoid 
any hazardous situation to persons or property.  
The instrument no longer conforms to N.A.M.U.R. recommendations. 

 

Summary of Contents for FT402

Page 1: ...a doc Druck 02 05 11 English Operating manual Immersion Coolers FT402 FT902 FT902 C JULABO USA Inc 884 Marcon Boulevard Allentown PA 18109 Phone 1 610 231 0250 Fax 1 610 231 0260 info julabo com www j...

Page 2: ...nd distributed according to the requirements of ISO 9001 2008 Certificate Registration No 01 100044846 Unpacking and inspecting Unpack the immersion cooler and accessories and inspect them for possibl...

Page 3: ...4 1 Explanation of safety notes 12 4 2 Explanation of other notes 12 4 3 Safety instructions 13 5 Preparations 14 5 1 Installation 14 5 2 Immersion probe Sensor connection Pt100 14 6 Operating procedu...

Page 4: ...for Pt100 external sensor for temperature measurement and control Model FT402 is provided with a handle for portable use Model FT902 is equipped with four castors Two of the castors include locking l...

Page 5: ...the mains power supply has low impedance to avoid any negative effects on the instruments being operated on the same mains This unit is designed for operation in a controlled electromagnetic environme...

Page 6: ...sheet 2 or Mandatory label M018 Colors blue white Carefully read the user information prior to beginning operation Scope EU 2 Semi S1 0701 Table A1 2 9 Carefully read the user information prior to beg...

Page 7: ...404A R134a Electrical connections Pt100 external sensor Pt100 Overall dimensions WxDxH cm 20x30x43 Immersion probe Lxdia cm 12x5 Immersion probe flexible Lxdia cm Connection tubing L cm 120 Noise leve...

Page 8: ...R23 R404A R23 Electrical connections Pt100 external sensor Pt100 Overall dimensions WxDxH cm 38x55x60 Immersion probe Lxdia cm Immersion probe flexible Lxdia cm 65x1 5 Connection tubing L cm 160 Nois...

Page 9: ...temperatures up to 31 C linear decrease down to 50 relative humidity at a temperature of 40 C Max mains voltage fluctuations of 10 are permissible Protection class according to IEC 60 529 IP21 The un...

Page 10: ...T402 Front view Rear view 1 7 8 9 10 FT 402 C 11 12 13 10 A M P 10 A M P 1 Mains power switch illuminated I on off 2 Edit keys increase decrease setting 3 Enter key store 4 LED temperature display 5 C...

Page 11: ...ded with each unit Order No 8 981 003 Pt100 sensor 200x6 mm dia stainless steel 9 Clamp for immersion probe 10 Immersion probe 11 Mains power cable with plug 12 15 A M P Mains circuit breakers resetta...

Page 12: ...mportant instructions Warning Describes a possibly highly dangerous situation If these instructions are not followed serious injury and danger to life could result Caution Describes a possibly dangero...

Page 13: ...rids free of obstructions Maintain a sufficient distance from all surrounding surfaces Do not move the unit from the position where it was set up during operation Always turn off the unit and disconne...

Page 14: ...For 0 68 kg of refrigerant R23 1 m3 of space is required The instrument should be set up at a frost proof and dry location The ambient temperature must not exceed 35 C Press down the castor levers on...

Page 15: ...d be completely immersed into the bath liquid B FT902 FT402 A B S S 120 mm minimum Important LPlace the external sensor S into the bath medium and securely fix the sensor LFT902 The diameter of the be...

Page 16: ...voltage specified on the type plate Deviations of 10 are permissible 6 2 Switching on Start Stop Switching on The immersion cooler is turned on and off with the mains switch 1 LThe unit performs a sel...

Page 17: ...mode This safe operating state is indicated by OFF on the LED temperature display A complete shutdown of the main functional elements is effected simultaneously The values set on the immersion cooler...

Page 18: ...o set a lower value Keep the keys depressed for the value to change fast 3 Press enter to store the value 6 5 Temperature control The immersion cooler can only control the temperature if both the Pt10...

Page 19: ...oil DANGER OF INJURY 7 Troubleshooting guide Error messages 8 Whenever the microprocessor electronics registers a failure a complete shutdown of the compressor is performed The alarm light illuminates...

Page 20: ...necting cable is electrically connected to the plug housing 4 1 3 2 Pt100 1 4 2 3 Shield Plug Look on soldering side Pt100 Connector for external Pt100 sensor Pin assignment Pin Signal 1 I 2 U 3 U 4 I...

Page 21: ...ooler is designed for continuous operation under normal conditions Periodic maintenance is not required Clean the outside of the unit using a wet cloth and low surface tension water Regularly check th...

Page 22: ...to avoid any harm to the service personnel Attach a short fault description During transport the unit has to stand upright Mark the packing correspondingly When returning a unit take care of careful a...

Page 23: ...in to the contrary all glassware including but not limited to reference thermometers are expressly excluded from the Initial Warranty 4 Buyer s sole remedies Limitations on Seller s Liability Buyer s...

Page 24: ...er without Buyer s prior consent 7 Governing Law The Warranty Provisions and all questions relating to their validity interpretation performance and enforcement shall be construed in accordance with a...

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