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Preparations 

18 

5.7. Countercooling 

 

Notice:  

Observe the laws and regulations of the water distribution company valid in the 
location where the unit is operated. 

Securely attach all tubing to prevent slipping. 

 
 
 
 
 

 

 
 

 

For applications near the ambient temperature, the cooling coil 
must be connected to the water mains. 

 

  Using tubing, connect the cooling coil (25a) to the tap water 

supply, and lead the tap water in a sink through the return 
connector (25b). 

Cooling coil 

 ED-5A / ED-5M 

 

 

 

Cooling coil 

 ED-5 

 

L

 

A specific water flow rate of 45 ml/minute is sufficient to 
compensate for the characteristic temperature. 

L

 

For applications near ambient temperature (20 °C), the 
cooling water temperature should at least be 5 °C below the 
working temperature. 

 

 
 

 

NOTE: Immersion coolers are used for countercooling instead of tap water in 
applications below room temperature.  
 
Order No. 

 

Description 

9 650 820 

 

FT200 

9 650 840 

 

FT400 

8 970 400 

Clamp for cooler probe for open baths 

Summary of Contents for ED-5

Page 1: ...270 doc 02 02 11 English Operating manual Open Bath Circulators ED 5A ED 5M ED 5 JULABO Labortechnik GmbH 77960 Seelbach Germany 49 0 7823 51 0 49 0 7823 24 91 info julabo de www julabo de 1 951 0270...

Page 2: ...ndustry are developed produced and distributed according to the requirements of ISO 9001 2008 Certificate Registration No 01 100044846 Unpacking and inspecting Unpack the circulator and accessories an...

Page 3: ...ols and functional elements 13 5 Preparations 14 5 1 Installation 14 5 2 Bath fluids 14 5 3 Filling Draining 15 5 4 Temperature application to external systems 16 5 5 Tubing 16 5 6 Adjusting the pump...

Page 4: ...temperature display The PID temperature control adapts the heat supplied to the thermal requirements of the bath Safety installations conforming to IEC 61010 2 010 The excess temperature protection is...

Page 5: ...ive affects on the instrument being operated in the same mains This unit is designed for operation in a controlled electromagnetic environment This means that transmitting devices e g cellular phones...

Page 6: ...g label W26 Colors yellow black Hot surface warning The label is put on by JULABO 2 1 Disposal Do not dispose of the unit with household waste However over the long operating period of the unit dispos...

Page 7: ...accordance with appropriate operating instructions for a period of ONE YEAR Extension of the warranty period free of charge With the 1PLUS warranty the user receives a free of charge extension to the...

Page 8: ...A 8 9 Mains power connection 115 V 60 Hz V Hz 103 127 60 Current input at 115 V A 9 Mains power connection 100 V 50 60 Hz V Hz 90 110 50 60 Current input at 100 V A 9 All measurements have been carrie...

Page 9: ...for storage and transportation Air humidity Max rel humidity 80 for temperatures up to 31 C linear decrease down to 50 relative humidity at a temperature of 40 C Max mains fluctuation of 10 are permi...

Page 10: ...oided slight or minor injuries could result A warning of possible property damage may also be contained in the text Notice Describes a possibly harmful situation If this is not avoided the product or...

Page 11: ...id prior to draining by switching the unit on for a short moment for example Observe the limited working temperature range when using plastic bath tanks Employ suitable connecting tubing Make sure tha...

Page 12: ...ed and installed Note sharp edges hot surfaces in operation moving machine parts etc Do dangerous steams or gases arise when heating Is an exhaust needed when working What to do when a dangerous subst...

Page 13: ...shortly for step by step changes Keep the keys pressed for fast change of setpoint 3 OK key store 4 LED temperature display menu indication 5 Control indicator Heating 7 Control indicator Alarm 7 Adju...

Page 14: ...bath tank with the bath cover B 5 2 Bath fluids Caution No liability for use of other bath fluids Do not use flammable bath fluids Water The quality of water depends on local conditions Due to the hi...

Page 15: ...om time to time Pump and heater must always be fully covered with the bath fluid The instrument is not suited for unsupervised continuous operation Filling Take care that no liquid enters the interior...

Page 16: ...onto the pump connectors for feed 24a and return flow 24b Secure the tubing with tube clamps ED 5A ED 5M ED 5 5 5 Tubing Recommended tubing Order No Length Temperature range 8930008 1 m CR tubing 8 m...

Page 17: ...eck the tubing for material defects e g for cracks Preventive maintenance Replace the tubing from time to time 5 6 Adjusting the pump flow 1 2 The pump flow is pre adjusted in the factory and can be m...

Page 18: ...upply and lead the tap water in a sink through the return connector 25b Cooling coil ED 5A ED 5M Cooling coil ED 5 LA specific water flow rate of 45 ml minute is sufficient to compensate for the chara...

Page 19: ...the identification plate 6 2 Switching on Start Stop Caution Observe the limited working temperature range when using plastic bath tanks Bath tanks made of Plexiglas up to 60 C Bath tanks made of Makr...

Page 20: ...ated by OFF on the LED temperature display A complete shutdown of the main functional elements such as heater and circulating pump is effected simultaneously Should such a safety standard not be requi...

Page 21: ...rature of the bath fluid has reached the safety temperature a complete shutdown of the heater and pump is effected The alarm is indicated by optical and audible signals continuous tone and on the LED...

Page 22: ...Cable of the working temperature sensor interrupted or short circuited Defect of the working or excess temperature sensor Working temperature and excess temperature sensors report a temperature diffe...

Page 23: ...he circulator is designed for continuous operation under normal conditions Periodic maintenance is not required The tank should be filled only with a bath fluid recommended by JULABO To avoid contamin...

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