Operating instructions behrotest® ET 2 control unit
Contents
1. tinuous change of time setting with in creasing speed Example The set time is 90 min HEATING W W tJ behrotest ET2 cncursrearer Press the f key once again On the display you will see OFF Heating with the time controlled programme Heating up the heating unit Switch on the control unit if this has not already been done First of all heat the heating unit up to the desired temperature To do this press the key On the display you will see the current temperature of the heating unit actual temperature The HEATING lamp provides infor mation about the heating activity HEATING T eE ri i TEMP gt Lu g 5 me MAIN SWITCH PROG W A tJ behrotest ET2 crcursreaker Inserting the samples Once the temperature has reached its target value you can insert the samples Heating up the samples Press the key The heating process starts with the target values for temperature and time set by you On the display you will see the actual temperature The HEATING lamp indicates that heating is in progress You can toggle the display from the actual temperature to the remaining time by means of the 4 key The nl IME and TEMP LED s will tell you what is currently shown on the dis play After the set time has expired the control unit will terminate the heating process and a buzzer will be sounded If you2. min increments or unlimited 13
3. wish to terminate the heating process before that switch off the control unit at the mains switch Tip heating a series of samples If you wish to heat a large number of samples one after the other press the key immediately af ter the heating process is com pleted In this case the heating unit will maintain the target temperature and you will avoid the repeated time consuming heating up After inserting the samples start the new heating process by pressing the key HEATING THE og ER wwe 5 5 THE MAIN SWITCH behrotest ET2 cncursrearcr Example Actual temperature 155 C HEATING TIME RUN CD row RH Pree PROG 4 A CJ behrotest ET2 crcursrearcr a Example Remaining time 68 min Operating in the con tinuous heating mode Switch on the control unit if this has notalready been done Setting the target temperature Press the J key Now the two TEMP and PROG LED s will be illuminated on the ET 2 front panel On the display the temperature previ ously set will be shown If you are using your control unit for the very first time the temperature will be shown that had been set in the fac tory during the functional testing of the unit Now Select the desired target tem perature by means of the 4 and keys The ET 2 will allow you to select a tem perature between 20 C and 450 C in 1 C increme
4. Labor Technik behrotest ET 2 control unit HEAT Ne TIME ce lt A TEMP NE j B MAIN SWITCH PROG behrotest ET2 cur sreaker z Operating instructions Please read these operating instructions carefully before commissioning your new behrotest ET 2 control unit These instructions will introduce you to the handling of the ET 2 using clear and simple instructions Additional information which is useful and important for understanding the functioning of the device is highlighted in the text by means of grey bars In the interests of handling the device safely please take heed of the safety notes marked with a A in these instructions We wish you every success in your work with the behrotest ET 2 Safety notes A A A Ensure that no liquids are able to enter the device Risk of electric shock Before opening the device the power supply must be disconnected Risk of electric shock Ensure that all connection cables between the control unit and the heater are laid in such a way that they do not touch the heating unit The cable insulation could become scorched This would give rise to a risk of short circuiting or electric shock Table of Contents behrotest ET 2 Overview oo cccccecsccsscccsseeccseecceeseceecereeesseeceeeees 5 Setting up and connecting the device 0 eeeeeteeeteteeeteeeees 6 Setting UP the COVICE i isciisiisrasennii netics 6 COMMECHING the COV ICS das sssisor
5. connected and screwed tight Switch the control unit off and on again at the mains switch If the same fault message is then displayed the temperature sensor in the heating block is probably defective Please get in touch with our customer service Please get in touch with our customer service Check that the heating block is connected Check the limit switch in the heating block see operating instructions for the heating block Switch the control unit off and on again at the mains switch If the same fault message is then displayed the heater in the heating block is defective probably Please get in touch with our customer service Switch off the control unit without delay and get in touch with our customer service a 2 Technical data External dimensions w x h x d in mm Weight Material Supply voltage Breaking capacity Connection of the heating devices Sensor Control behaviour Temperature control range Control precision Time range able to be set 140 x 100 x 270 140 x 135 x 270 with front feet folded out approx 1 700 g powder coated steel plate 230 V 50 Hz 2200 W ohmic load Via integrated four pole appliance socket Safety cut out is integrated into the mains switch Pt100 three wire circuit three pole diode socket with screw connection for sensor PID with anti drift control 20 450 C can be set digitally in 1 C increments 1K 1 999 min can be set digitally in 1
6. lded out This allows the front of the device to be lifted slightly and tilted This eases operation of the device and the reading of the values shown on the display This fuse operates similarly to an overload cut out which you are familiar with from domestic appli cations It interrupts the circuit in S the event of a current surge or Connecting the device overload Because for this safety function a Connectthe ET 2 control unit to the power supply network spring has to be tensioned the Insert the mains plug for the heater into the four pole appliance socket mains switch for the ET 2 re HEATING Furnace at the rear of the ET 2 and firmly tighten the union nut quires a greater pressure for ee m WY f switching on than conventional ete a Connect the three pole diode socket for the sensor in the heater to the socket mains switches labelled P TI00 on the rear of the control unit Now also screw this plug tight t Switch on the control unit at the mains switch The mains switch is now illuminated and on the display behrotest ET2 cicurpreaccr the message OFF appears Operating the de vice The behrotest ET 2 control unit can operate in 2 operating modes 1 Time controlled programme In the time controlled programme mode you selecta temperature and then seta time of your choice between 1 and 999 minutes After this time has expired the ET 2 will automatically switch off u 2 Contin
7. nts Continuous pressure on the 4 and 4J keyswill lead to a continuous change of target tempera ture with increasing speed Example The set temperature is 155 C HEATING me Ta O ae ie iii PROG 3 4 l behrotest ET2 crcursreaker S34 SS Press the fe key twice On the display you will see OFF Heating in the continuous heating mode Switch on the control unit if this has not already been done Start the heating process by pressing the t key The HEATING lamp provides information about the heating activity On the display you will see the cur rent temperature of the heating unit actual temperature Terminate the heating process by pressing the key ll What to do if If a fault occurs during operation of the behrotest ET 2 control unit a buzzer is sounded and a message on the display will inform you about the nature of the fault Fault code Fault type E03 No signal from Pt100 temperature sensor E02 Short circuit in the sensor E10 Heating is interrupted Ell General fault The address of our customer service is behr Labor Technik GmbH Spangerstrake 8 D 40599 Dusseldorf G ermany Tel 49 211 7 48 47 33 Fax 49 211 7 48 47 48 eMail service behr labor com Internet http www behr labor com Measures for correction of the fault Check that the plug for the temperature sensor at the rear of the ET 2 is
8. snaccarsaccaninasnannwnuaidaesansntannndasusssaciananudvnnvaneaniicd 6 Switching on the AeVICE cece eee ce eceeteeeeee tee teeteeeteesteeeeeeteee 7 Operating the device 2 2 4 ay daniehinhed ene nae 8 Working with the time controlled programme 8 Setting the target temperature and the time ooo cesses eesseeeseeestessteesseeseteesteeeteesneeenesnee 8 Heating with the time controlled programme Heating up the heating unit Inserting the samples Heating up the samples mni Operating in the continuous heating mode Setting the target temperature Heating in the continuous heating mode What to do if Technical data behrotest ET 2 Overview Front view programme LED s display HEATING MAIN SWITCH lamp mains switch CIRCUIT BREAKER E key pad Rear view connection socket for temperature sensor Power 230 V AC Furnace power cable connection socket for heating unit 5 HEATING indicator Setting up and connecting the device Switching on the device Setting up the device The behrotest ET 2 mains switch fulfils two functions Its Never set the ET 2 control unit up inside an extraction cabinet as first function is to switch the de aggressive gases can damage the device vice on and off Its second func tion is provided by the fuse Place the device on a dry and level surface integrated into the switch Both front feet of the ET 2 can be fo
9. uous heating In the continuous heating mode you selecta temperature and then start the heating process which at the end is terminated by you operating the mains switch Working with the time controlled programme Setting the target tempera ture and the time Switch on the control unit if this has not already been done Press the fe key Now the two TEMP and PROG LED s will be illuminated on the ET2 front panel On the display the temperature previ ously set will be shown If you are us ing your control unit for the very first time the temperature will be shown that had been setin the factory during the functional testing of the unit Now select the desired target tem perature by means of the 4 and keys The ET 2 will allow you to select a tem perature between 20 C and 450 C in 1 C increments Continuous pressure on the 4 and keys will lead to a continuous change of target tempera ture with increasing speed Example The settemperature is 155 C HEATING RUN ie m MAA behrotest ET2 ccur ereaker SS SS Press the key Now the two LED s TIME and PROG will be illuminated on the front panel Now Select the desired target time by means of the 4 and keys The ET 2 will allow you to select a time between 1 min and 999 min in 1 min increments Continuous pressure on the 4 and keys will lead to a con
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