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PAGE 13

T E C A L  4 2 5 S    O P E R A T O R ’ S   M A N U A L

Cooling  Probe

Operating temperatures below ambient can be achieved by using the cooling
probe with a chilled water circulator.  The cooling probe is supplied as an
accessory and can be used in an insert with a 3/8" or 10mm hole (see
Accessories).  Instructions for its use are included with the probe.

The block should not be operated at temperatures below dewpoint as
excessive build up of moisture will occur which may cause damage to the
interior of the unit.

After Use

1.

When you have finished heating samples, remember that parts of the
unit – inserts and associated accessories – may be very hot. Take the
precautions listed earlier.  We recommend that the inserts should be
allowed to cool to 70°C before being removed from the Tecal unit.
They will still have to be handled with care

2.

If you need to remove an insert while it is hot,  fit the extractor tool into
the locating holes and lift the insert out carefully.  Never leave the
extractor tool in the insert while it is being used in the Tecal unit.

Summary of Contents for TECHNE Tecal 425S

Page 1: ...Tecal 425S Calibrator Operator s Manual Issue 5 Date of issue 3rd May 2005 Techne is a trademark Techne 2003...

Page 2: ......

Page 3: ...ions 8 Warning 8 Specification 9 Working Conditions 9 Packing 9 WHEN YOU SWITCH ON 10 Front Panel controls 10 Setting the Units for Temperature 12 Setting the Operating Temperature 12 Cooling Probe 13...

Page 4: ...PAGE 2 T E C A L 4 2 5 S O P E R A T O R S M A N U A L...

Page 5: ...PAGE 3 T E C A L 4 2 5 S O P E R A T O R S M A N U A L NOTES...

Page 6: ...that the air inlet vents on the underside are free from obstruction 5 Note that the following symbols may be next to the indicator lamps on the front panel of the units and have the following meanings...

Page 7: ...assurant que les trous d a ration situ s sous l appareil ne sont pas obstru s 5 Les symboles ci dessous situ s c t des t moins lumineux sur la face avant de l appareil ont la signification suivante t...

Page 8: ...Entl ftungsrippen an der Ger teunterseite immer frei zug nglich sind 5 Wenn die Anzeigenl mpchen an der Vorderseite leuchten hat dies folgende Bedeutung Ger t ist eingeschaltet Ger t heizt bertemperat...

Page 9: ...to a las luces indicadoras en el panel frontal del equipo tienen los siguientes significados Indicador de potencia Indicador del calor Indicador de sobretemperatura 6 Los s mbolos que se encuentran en...

Page 10: ...tailed towards the back of this manual Maintaining a set temperature The required temperature is set on the calibrator and the operation of the probe is checked A UKAS certificate can be provided cont...

Page 11: ...of inserts at the back of this book Depth 130mm 5 1 Diameter 38 2mm 1 5 Reference well Depth 101 6mm 4 Diameter 6 6mm 0 26 Working conditions The Tecal units are designed to work safely under the foll...

Page 12: ...econd then the actual temperature of the block will be indicated The Front Panel Controls The front panel controls consist of three buttons for controlling the display a five digit LED display and thr...

Page 13: ...ndicator shows that there is power to the unit Power to the Block Indicator The next indicator shows when there is power to the block When the set temperature is higher than the block temperature this...

Page 14: ...ROW buttons at the same time To convert back press both buttons again Setting the Operating Temperature 1 To display the set temperature on the digital display press and hold the SET Temperature butto...

Page 15: ...ive build up of moisture will occur which may cause damage to the interior of the unit After Use 1 When you have finished heating samples remember that parts of the unit inserts and associated accesso...

Page 16: ...owered up otherwise data integrity cannot be guaranteed Once the cable is fitted it does not matter which unit is powered up first RS232 9 way PC serial port ON OFF switch Fuses Power inlet The follow...

Page 17: ...ndent circuits to protect it from overheating The unit constantly checks that the block temperature does not exceed its maximum If for some reason this temperature is exceeded all power to the block i...

Page 18: ...calibrator to your supplier for repair Never fit a fuse rated higher than the value indicated on the unit serious damage or personal injury may result Replacement parts Each unit is supplied with an...

Page 19: ...ation Aluminium Inserts Immersion depth 114 3 mm or 4 5 NUMBER PROBE DIAMETER METRIC FINSALA 5 off 6mm FINSALB 1 off each 10mm 8mm 6mm 4 5mm 3mm FINSALC 2 off 6mm 2 off 10mm FINSALD 2 off 6mm 2 off 12...

Page 20: ...PAGE 18 T E C A L 4 2 5 S O P E R A T O R S M A N U A L...

Page 21: ...g the details below UK Office Keison Products P O Box 2124 Chelmsford Essex CM1 3UP England Tel 44 0 330 088 0560 Fax 44 0 1245 808399 Email sales keison co uk Please note Product designs and specific...

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