Heyl Testomat EVO TH Service Instructions Manual
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Heyl Testomat EVO TH Service Instructions Manual

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Service Instructions
®
Testomat
EVO TH
These operating instructions are the copyrighted property of Heyl Analysen-
technik GmbH & Co. KG.
It is intended for customer service and should only be used by authorised ser-
vice staff.
No part of this publication may be reproduced or transmitted in any form or by
any means to a third party, in particular to our competitors, without express
prior permission of Heyl Analysentechnik GmbH & Co. KG.

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Summary of Contents for Heyl Testomat EVO TH

  • Page 1 Service Instructions ® Testomat EVO TH These operating instructions are the copyrighted property of Heyl Analysen- technik GmbH & Co. KG. It is intended for customer service and should only be used by authorised ser- vice staff. No part of this publication may be reproduced or transmitted in any form or by any means to a third party, in particular to our competitors, without express prior permission of Heyl Analysentechnik GmbH &...

  • Page 2: Table Of Contents

    Contents Contents Contents ....................2 Important safety information ............. 3 Qualification of the staff ................ 3 Warning notices in these instructions ........... 3 Further documents ................4 General instructions ................4 Key combinations when switching on ........... 6 Prior to carrying out maintenance work ..........7 Permissible tools ...................

  • Page 3: Important Safety Information

    Always adhere to hazard warnings and safety tips when using reagents, chemicals and cleaning agents. Please adhere to the re- spective safety data sheet! Download the safety data sheets for the supplied reagents at http://www.heyl.de. Qualification of the staff Maintenance work requires fundamental electrical and process engi- neering knowledge as well as knowledge of the respective technical terms.

  • Page 4: Further Documents

    General instructions Further documents Testomat instruments are plant components. Therefore, always ob- serve the documentation of the plant manufacturer. General instructions Regular maintenance is necessary to ensure trouble-free operation of the Testomat instrument. Regular visual inspections also increase operational reliability. Also refer to the notes in the operating instruc- tions! Fix errors by yourself.
  • Page 5 General instructions • Clean the measuring chamber at regular intervals (approx. every 6 months) and, if possible, replace the two seals of the measuring chamber holder and the sight-glass windows. • If the water has high iron content, cleaning might be necessary more often.

  • Page 6: Key Combinations When Switching On

    General instructions Key combinations when switching on You can gain access to some service functions when you press a key or a combination of keys when switching on the device. The following table gives you an overview of the possible combinations. Function Calibration mode Basic programming...

  • Page 7: Prior To Carrying Out Maintenance Work

    General instructions Prior to carrying out maintenance work Carry out a visual inspection of the instrument: • Are the instrument doors closed properly? • Is the instrument heavily soiled? • Is there air inside the dosing hoses? • Are the hose connections of the dosing pump free of leaks? •...

  • Page 8: Carrying Out Maintenance

    Carrying out maintenance Carrying out maintenance This service manual describes maintenance work that goes beyond the regular maintenance work described in the “Maintenance and repairs” chapter of the operating manual. see Operating manual Replacing the indicator Page 66 Setting the indicator level Page 67 Cleaning the measuring chamber and the viewing window...

  • Page 9: Cleaning Of Clogged Solenoid Valves

    Carrying out maintenance Cleaning of clogged solenoid valves When the solenoid valve is clogged with impurities, the measuring chamber is not properly emptied. In this case, the solenoid valve can be carefully cleaned. For dismantling all Testomat devices, please proceed as follows: ...
  • Page 10 Carrying out maintenance  When microbial contamination or deposits are present, clean the  valve chamber and the parts of the valve with a small brush (e.g. from our cleaning brush set, Art. No. 32287).
  • Page 11 Carrying out maintenance Use of cleaning agents  Never use organic solvents to clean the measuring chamber and CAUTION other plastic parts!  For cleaning, use an acidic cleaning agent.  Observe the safety instructions when handling cleaning agents!  Carry out assembly by following the steps for dismantling of the same in reverse.
  • Page 12 Carrying out maintenance Risk of interchanging parts Do not interchange the inlet and outlet sides when mounting! The NOTE springs are not identical. The solenoid valve no longer works when it is incorrectly assembled. Do not interchange the cable connectors of the inlet and outlet sides when reconnecting (inlet: yellow-green cable;...

  • Page 13: Repairing Or Replacing The Dosing Pump

    Carrying out maintenance Repairing or replacing the dosing pump Maintenance rate ® The dosing pump DOSIClip is a high-precision piston dosing pump, NOTE which makes up to 400 000 pump strokes per year depending on the settings (a measurement all 10 minutes x 4 pump strokes every day). To ensure proper operation for many years, we recommend sending in the pump for servicing every 2-3 years.

  • Page 14: Replacing The Dosing Pump Valves

    Carrying out maintenance Replacing the dosing pump valves In certain cases and with an obvious cause of malfunctioning, it is also possible to replace the pump valves. Please proceed as follows: 1. Remove the transparent cover. 2. Use a suitable screwdriver to remove the electronics from the housing (snap-on installation).

  • Page 15: Checking Dosing

    Carrying out maintenance Checking dosing When measuring the hardness, it is checked whether the yellow val- ue is at least 50 below the limit value after each (except the first) dosing stroke. Each stroke usually results in the value being reduced by 80 to 100 digits.

  • Page 16: Special Function "Adjust Mode

    Special function “Adjust mode” Special function “Adjust mode” The adjust mode is used for testing the overflow detection and the optical amplification setting. The amplification setting is carried out in the normal measuring mode NOTE of the instrument, i.e. manual adjustment is not required. The test described below is only used for checking and error detection.

  • Page 17: Checking The Automatic Adjustment

    Checking the automatic adjustment  Prior to adjustment, fill the measuring chamber with deionised wa- ter (VE water) until overflow occurs.  Switch to “Adjust mode” (see “Calling adjust mode”).  Press the key to switch on the transmit diodes and the stir- ring mechanism.

  • Page 18: Manual Measured Value Check

    Manual measured value check Manual measured value check The measured value check of the Testomat instruments is usually carried out during a laboratory analysis of the measuring water. In special cases, this check can also be carried out via direct input of a standard solution, created especially for this task, into the measuring chamber.

  • Page 19: Troubleshooting

    There is insufficient dye in the indicator. Use a new indicator.  When using an indicator that is not from Gebr. Heyl, replace it with the one recommended by us. 2. The stirring bar in the measuring chamber holder fails to rotate, resulting in an insufficiently mixed indicator.
  • Page 20 Troubleshooting  Make sure that all the indicator hoses are fitted correctly. If not, air may enter the hoses!  If the error re-occurs, replace the bottle insert for a screw cap with a suction tube (art. no.: 40135).  Make sure that the suction and pressure hose set is not kinked or trapped.

  • Page 21: Error Message "38 Water Low

    Troubleshooting 9. Iron (< 0.5 mg/l), copper and aluminium ions (<0.1 mg/l) may impair the measurement. Remedy:  This is probably caused by old iron pipes, new copper pipes or changes to the well water. Pay attention to the composition of the measuring water.

  • Page 22: Error Message "33 Fault Optics

    Troubleshooting Error message “33 Fault optics” Remedy  There is an error at the optical component. The receiver is defec- tive. Replace the measuring chamber holder.  Cold water (<8°C) combined with a warm and humid ambient tem- perature (>28-30°C) can lead to the formation of water drops on the sight-glass windows.

  • Page 23: Readjusting The Current Interface

    Troubleshooting 4. Stop input terminals 19 and 20, no function. Remedy:  The PAUSE key of the device has been activated.  The optocoupler might be defective. External voltage has been applied to terminals 19 and 20. Howev- er, only a volt-free contact should be applied here (see operating instructions).

  • Page 24: Spare Parts For Testomat Evo Th

    Spare parts for Testomat® EVO TH ® Spare parts for Testomat EVO TH Art. No Pressure controller Art. No Device spare parts 40125 Controller / filter , complete 31582 Fuse GS-M 5x20E 4A MT receiver 40120 Controller / filter 31655 Fuse T2A (24V) receiver 40129...

  • Page 25: Component Positions

    Component positions Component positions...
  • Page 26 Component positions Controller/filter receiver, with tube Item Name Article number Quantity Controller / filter receiver 40120 Controller plug 40129 O-ring 11249 Flow controller valve body, 11225 Locking pin 11270 Angled plug-in connector 40157 Inlet filter 11217 Spring for inlet filter 11218 Flat seal 24x2 33777...
  • Page 27 Component positions Drainage and piping Item Name Article number Quantity Reducing connector 10-6 40152 Plug-in angular connector 40154 Pipe 10x98 40240 Pipe 6x115 40142 Plug-in connector 40150 G1/8“ - 6 Plug-in connector 40156 G3/8“ – 10 T connector 10 40112 Pipe 10x45 35863 Drain funnel...
  • Page 28 Component positions Measuring chamber complete (40022) Item Name Article number Quantity Measuring chamber hous- 37810 Flat seal 24x2 33777 Sight-glass window 30x3 40170 Sight-glass holder, 40176 Bolt M3x40 33253 Plug for measuring cham- 11210 Angled plug-in connector 40320 Tube, PVC, 3,0/1,5, 35852 200mm Latch fastener...

  • Page 29: Checklist Testomat Evo Th

    ® Checklist Testomat EVO TH Dear customers and service technicians, The following checklist is no substitute for your expertise and experience applied to the process of troubleshooting. It should assist you and facilitate swifter and more systematic detection and logging of errors. No claim of completeness may be inferred from this list. We are grateful to receive supplementary feedback at any time.
  • Page 30 ® Device settings for Testomat EVO TH Caution! Your settings may be deleted in the event of a repair. Accordingly, export your device settings onto an SD card before sending the device for repair to our service team. The settings can be re-imported after the repair. Impuls Menu Setting...
  • Page 31 Gebrüder Heyl Analysentechnik GmbH & Co. KG Orleansstraße 75b D 31135 Hildesheim Serviceanleitung_EVO_GB_190718.docx www.heyl.de Scan the code and visit us on our website!

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