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Metrohm Autosampler plus 919 IC, Manual

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Metrohm Autosampler plus 919 IC Manual Download Page 37

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5 Troubleshooting

919 IC Autosampler plus

￭￭￭￭￭￭￭￭

29

5  Troubleshooting

5.1 

Problems and their solutions

Problem

Cause

Remedy

The peristaltic pump
is pumping too little.

Peristaltic pump – Contact
pressure too weak.

Correctly set the contact pressure.

Peristaltic pump – Pump
tubing defective.

Replace the pump tubing.

Summary of Contents for Autosampler plus 919 IC

Page 1: ...919 IC Autosampler plus Manual 8 919 8003EN 2020 01 29...

Page 2: ......

Page 3: ...Metrohm AG CH 9100 Herisau Switzerland Phone 41 71 353 85 85 Fax 41 71 353 89 01 info metrohm com www metrohm com 919 IC Autosampler plus Manual 8 919 8003EN 2020 01 29...

Page 4: ...echcom metrohm com This documentation is protected by copyright All rights reserved This documentation has been prepared with great care However errors can never be entirely ruled out Please send comm...

Page 5: ...l 6 2 Overview of the instrument 7 2 1 Front 7 2 2 Rear 8 2 3 Connector strip 9 2 4 Sample rack 9 2 5 Peristaltic pump 10 3 Installation 11 3 1 Setting up the instrument 11 3 1 1 Packaging 11 3 1 2 Ch...

Page 6: ...5 1 Problems and their solutions 29 6 Appendix 30 6 1 Lift settings 30 6 2 Remote interface 31 6 2 1 Pin assignment of the remote interfaces 31 7 Technical specifications 33 7 1 Lift and turntable 33...

Page 7: ...tubing cartridge 16 Figure 9 Installing the filtration cell holder 18 Figure 10 Mounting the safety shield 19 Figure 11 Connecting the computer 20 Figure 12 MSB connections 22 Figure 13 Connecting a...

Page 8: ......

Page 9: ...a high performance PC soft ware e g MagIC Net from Metrohm 1 2 Instrument description The 919 IC Autosampler plus has the following features Turntable with interchangeable sample rack A single row sa...

Page 10: ...y 1 4 About the documentation CAUTION Please read through this documentation carefully before putting the instrument into operation The documentation contains information and warnings which the user m...

Page 11: ...General notes on safety WARNING Operate this instrument only according to the information contained in this documentation This instrument left the factory in a flawless state in terms of technical sa...

Page 12: ...rostatic charges WARNING Electronic components are sensitive to electrostatic charges and can be destroyed by discharges Do not fail to pull the power cord out of the power socket before you set up or...

Page 13: ...e not permitted to reach into the working area of the instrument while operations are running A considerable risk of injury exists for the user WARNING In the event of a possible blockage of a drive t...

Page 14: ...2 19 EU WEEE Waste Electrical and Electronic Equipment The correct disposal of your old instrument will help to prevent negative effects on the environment and public health More details about the dis...

Page 15: ...ument 919 IC Autosampler plus 7 2 Overview of the instrument 2 1 Front 1 2 3 4 5 Figure 1 Front 919 IC Autosampler plus 1 Safety shield 2 Sample rack 6 2041 510 3 Peristaltic pump 4 Lift with needle a...

Page 16: ...sampler plus 1 Warning symbols see chapter 1 5 4 page 5 2 Pump connectors M8 connector for external pumps 3 Stirrer connector For propeller stirrer 802 Stirrer and mag netic stirrer 741 Magnetic Stirr...

Page 17: ...ip 919 IC Autosampler plus 1 USB connectors 2 Controller connector For the connection to the PC 3 MSB connectors For stirrers dosing devices etc 4 Mains connection 5 Type plate 2 4 Sample rack Attachi...

Page 18: ...rack is rotated into the starting position 2 5 Peristaltic pump The peristaltic pump can be used as a 1 channel or 2 channel pump One or two 6 2755 000 tubing cartridges can be mounted 1 2 3 4 5 6 Fig...

Page 19: ...s suitable for operation and free of vibrations and which provides protection against corrosive atmosphere and contamination by chemicals The instrument should be protected against excessive temperatu...

Page 20: ...ot use a not permitted power cord 1 Plugging in the power cord Plug the power cord into the instrument s power socket Connect the power cord to the power grid 3 3 Installing the sample needle Needles...

Page 21: ...1835 020 6 1835 040 6 1835 050 made of PEEK This is how you install the needle and the capillary 1 Removing the pressure screw Loosen and remove the pressure screw 6 3 screwed onto the nee dle holder...

Page 22: ...e capillary to the pressure screw of the needle holder The capillary must be pushed in while doing so 3 4 Installing the peristaltic pump 1 2 3 4 5 6 7 8 1 9 10 3 6 2744 160 Figure 7 Installing the pu...

Page 23: ...dge 3 Connect the aspiration side Place a 6 2744 030 tubing olive 7 2 on the aspiration side of the pump tubing 4 Connect the pressure side Slide the union nut 7 6 of the 6 2744 160 pump tubing connec...

Page 24: ...6 Connect the capillaries Screw the respective capillaries tightly to the two tubing olives with PEEK pressure screws 7 1 Table 1 Pump tubings and suitable adapters Pump tubing Adapter 6 1826 020 blu...

Page 25: ...it all the way down Switch on the drive of the peristaltic pump Raise the contact pressure lever one step at a time until liquid flows When liquid starts flowing raise the contact pressure lever by an...

Page 26: ...e wall Then fix the filtration cell holder in place with the two screws sup plied 3 6 Mounting the safety shield For reasons of safety it is indispensable that you install the safety shield 6 2751 110...

Page 27: ...ntroller cable the instrument can be connected directly either to a USB socket on a computer to a connected USB hub or to a different Metrohm control instrument You need administrator rights for the i...

Page 28: ...e manual of your computer The 6 2151 000 cable is used for this purpose 6 2151 000 USB 2 USB 1 Contr MSB 2 Figure 11 Connecting the computer The instrument is recognized Depending on the version of th...

Page 29: ...trument can be found in the documentation for the respective computer software 3 8 Connecting MSB devices In order to connect MSB devices e g stirrers or dosing devices Metrohm instruments are equippe...

Page 30: ...e can be used at a single MSB con nector at one time The MagIC Net software supports only dosing devices of the 800 Dosino type CAUTION Exit the control software before you plug in MSB devices When it...

Page 31: ...y interference voltages and thus ensures compli ance with the strict EMC standards in accordance with the applicable technical standards see EU declaration of conformity of the instrument Proceed as f...

Page 32: ...onnect a stirrer or a titration stand as follows 1 Connecting the stirrer or titration stand Exit the control software Connect the connection cable of the magnetic stirrer or of the titration stand to...

Page 33: ...s be coordinated in a single complex automation system However no exchange of data is possible Proceed as follows 1 Connecting the Remote Box Exit the control software Connect the Remote Box connectio...

Page 34: ...ts must be removed immediately In particular the connector strip especially the power plug should be protected from contamination 4 2 Injection valve If the injection valve is blocked then the channel...

Page 35: ...witched off for a longer period This ensures that the contact pressure will be maintained once it has been set CAUTION The 6 1826 xxx pump tubings are made of PVC or PP and therefore must not be used...

Page 36: ...oppers PVC Tygon 0 38 mm Pump tubing for bromate determination using the triiodide method 6 1826 320 Pump tubing LFL orange yellow 3 stoppers PVC Tygon 0 48 mm For acceptor solutions for Inline Dialys...

Page 37: ...ubleshooting 5 1 Problems and their solutions Problem Cause Remedy The peristaltic pump is pumping too little Peristaltic pump Contact pressure too weak Correctly set the contact pressure Peristaltic...

Page 38: ...2 Loosen the nut Slightly loosen the nut below the lift head using a wrench 3 2 Figure 18 Adjusting the needle 3 Adjust the needle holder Turn the needle holder a few millimeters out of the lift head...

Page 39: ...or Metrohm Serial Bus For connecting external dosing devices or stirrers 3 Remote connector For connecting instruments with a remote interface 6 2 1 Pin assignment of the remote interfaces 13 1 14 25...

Page 40: ...ines can be set with the CTRL command Table 3 Inputs and outputs of the remote interface Assignment Pin no Assignment Pin no Input 0 21 Output 0 5 Input 1 9 Output 1 18 Input 2 22 Output 2 4 Input 3 1...

Page 41: ...s Tubing materials PVC Tygon ST PVC Tygon LFL PP 7 3 Interfaces and connectors Controller connec tor USB Upstream port 9 pin Mini DIN socket for connecting a computer for controlling the instrument MS...

Page 42: ...0 at temperatures under 30 C Humidity 50 at temperatures under 45 C Storage 20 60 C Humidity 95 at temperatures under 40 C Humidity 85 at temperatures under 50 C Humidity 50 at temperatures under 60 C...

Page 43: ...Technical specifications 919 IC Autosampler plus 35 7 7 Dimensions Width 0 28 m Height 0 53 m Depth 0 50 m Material Housing Metal housing surface treated Weight without accessories 1 919 0020 14 00 k...

Page 44: ...o your Internet browser 2 Enter the article number e g 919 into the search field The search result is displayed 3 Click on the product Detailed information regarding the product is shown on various ta...

Page 45: ...19 Peristaltic pump 14 Pump tubings 14 M Maintenance Injection valve 26 Peristaltic pump 27 Metrohm Serial Bus MSB see also MSB 21 MSB Connect devices 21 N Needle Install 12 O Operation Peristaltic pu...

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