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Summary of Contents for Metrohm 832 KF Thermoprep
- Page 1 CH-9101 Herisau/Switzerland E-Mail info@metrohm.com Internet www.metrohm.com 832 KF Thermoprep Instructions for Use 8.832.1023 10.2004/ dm...
- Page 2 Although all the information given in these instructions has been checked with great care, errors cannot be entirely excluded. Should you notice any mistakes please inform the author at the address given above. © Metrohm Ltd. 2002 Printed in Switzerland 832 KF Thermoprep...
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Page 3: Table Of Contents
4.4.2 Setting a temperature................15 4.4.3 Self-optimization of the control parameters..........16 4.4.4 Key lock function..................16 Working procedure................ 17 4.5.1 Preparing the 832 KF Thermoprep/756/831 Coulometer system ..18 4.5.2 Determination with blank value subtraction..........18 4.5.3 Determination without blank value subtraction........19 Practical information ..............20... - Page 4 8.2.1 832 KF Thermoprep................25 Optional accessories..............27 8.3.1 Sample vials....................27 Warranty and conformity............... 28 8.4.1 Warranty ....................28 8.4.2 EU Declaration of Conformity for 832 KF Thermoprep ......29 8.4.3 Declaration of Conformity ...............30 Index List of illustrations Fig. 1 Front view ........................3 Fig.
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Page 5: Introduction
It has been designed for use in production and laboratories and covers a wide range of applications. The 832 KF Thermoprep can be used wherever it is necessary to heat up a solid or liquid sample and/or to drive off water by the application of heat. -
Page 6: Information About These Instructions For Use
1.2 Information about these Instructions for Use 1.2 Information about these Instructions for Use Please read through these Instructions for Use before you start to use the 832 KF Thermoprep. The following notations and pictograms are used in these instructions: Operating element The operating elements are explained on pages 3ff. -
Page 7: Parts And Controls
Inlet tubing 6.1805.020 6.2816.070 and 6.2816.080 Dosing tip 6.1543.060 Air/Nitrogen outlet Septum stopper 6.2730.050 Drying bottles 6.1608.050 With 6.1602.140 inset, filled with 6.2811.000 molecular sieve Sample holder Bottle holder Pump switch Flow indicator Temperature selection switch Flow controller 832 KF Thermoprep, Introduction... -
Page 8: Rear View
Fig. 2 Rear view Tubing guide Transfer tubing connection Ventilation slots Guide spring Mains switch Needle base Mains connection Hot air outlet Fuse holder Key lock switch Adjustment nuts Air/nitrogen outlet Connection for dust filter (6.2724.010) 832 KF Thermoprep, Introduction... -
Page 9: Temperature Controller
1.3.4 Sample holder for standard vials The dimensions of the 6.2063.000 sample holder are optimized for the Metrohm 6.2419.007 standard sample vials (6 mL). This ensures the highest possible heat flow from the oven to the sample. If other sample containers with different dimensions shall be used custom made sample holders can be delivered. -
Page 10: Safety Information
This instrument must only be operated at the specified mains voltage. Repair and maintenance: If faults or malfunctions occur while using the 832 KF Thermoprep we recommended that you first check that the connection to the control in- strument has been made correctly. -
Page 11: Installation
Installation This section describes the things you should pay attention to when un- packing and starting up the 832 KF Thermoprep. It also tells you how a complete automation system is built up. The following illustration provides an overview of the peripheral devices... -
Page 12: Instrument Setup
Setting the mains voltage Before you switch on the 832 KF Thermoprep for the first time please check that the mains voltage set on the instrument (see illustration on the following page) corresponds to your local mains voltage. If this is... -
Page 13: Fig. 6 Fuse Holder
(see below). 220 – 240 V 100 – 120 V Mains switch Mains connection Fuse holder 220 - 240 V 100 - 120 V Fig. 6 Fuse holder 832 KF Thermoprep, Installation... -
Page 14: Assembling The 832 Kf Thermoprep
3.3 Assembling the 832 KF Thermoprep 3.3 Assembling the 832 KF Thermoprep 3.3.1 Assembling the needles • Screw spacer 3 (4.832.4190, L=58 mm) into distributor 39. For special requirements, e.g. different sample vials, custom-made spacers can be supplied, see p. 27. -
Page 15: Attaching The Drying Bottles
832 KF Thermoprep. The free end of the When attaching the tubing please tubing is screwed onto the connection provided observe the following: for it on the guide head. -
Page 16: Assembling The Coulometric Cell
The titration vessel is adapted for the gas inlet in the following way: Instead 6.2730.020 Septum stopper, 6.2730.050 Stopper is used with 6.1543.060 Tip. (Nipple and O-ring of 6.2730.030 from the Titrino accessories.) Fig. 10 Volumetric KF cell 832 KF Thermoprep, Installation... -
Page 17: Operation
4.1 Inserting and removing sample vials As the oven of the 832 KF Thermoprep can reach a temperature of 250 °C, vials must only be inserted in or removed from the oven by us- ing crimping pliers or other tools. Hot vials should only be placed on temperature-resistant surfaces. -
Page 18: The Pump
Fig. 13 Needle in lowered position 4.3 The pump The 832 KF Thermoprep is equipped with a powerful air pump, with which the released humidity of the sample can be transferred to a titra- tion cell in a constant carrier gas stream. -
Page 19: The Temperature Controller
Altered set values are immediately accepted by the temperature con- troller. If the key lock function (tumbler switch 29 on the rear panel of the hous- ing) is switched on then no settings can be made. 832 KF Thermoprep, Operation... -
Page 20: Self-Optimization Of The Control Parameters
4.4.4 Key lock function The temperature controller settings can be protected against accidental alteration. On the rear panel of the 832 KF Thermoprep the 'Key Lock' tumbler switch 29 can be switched to 'On'. If the key lock function is switched on the 'Temperature' tumbler switch 9 can still be used to select the two set temperatures T1 and T2. -
Page 21: Working Procedure
Sample vials contain a considerable amount of atmos- pheric humidity, e.g. Metrohm standard vials with a volume of 6 mL can contain 60…150 µg water. While the determination is being carried out atmospheric moisture can also enter the coulometer cell as a result of leaks, etc. -
Page 22: Preparing The 832 Kf Thermoprep/756/831 Coulometer System
4.5 Working procedure 4.5.1 Preparing the 832 KF Thermoprep/756/831 Coulometer system 1. Switch on the 832 KF Thermoprep. The oven heats up automati- cally to set temperature T1 or T2. 2. If necessary use the set value switch to alter set temperature T1 or 3. -
Page 23: Determination Without Blank Value Subtraction
7. Lower the needle until it reaches the stop. Enter the sample size at the coulometer and confirm it with <ENTER>. 8. After the determination wait for post-conditioning to be completed and, if necessary, carry out further determinations. 832 KF Thermoprep, Operation... -
Page 24: Practical Information
• Hydranal ® Manual, Water reagents for Karl-Fischer-Titration, Riedel- de Haën, 1987 • The following Metrohm Application Bulletins can be obtained free of charge: No. 109 Karl Fischer water determination with the KF drying oven No. 145 Determination of low water contents in plastics using the KF oven method No. -
Page 25: Maintenance Information
4.6 Practical information Maintenance information The 832 KF Thermoprep does not need a lot of care. Ensure that it does not become excessively dirty and is not exposed to corrosive atmos- pheres. • Renew used-up molecular sieve in good time. The molecular sieve should be exchanged as soon as increased drift values occur in the Karl Fischer cell. -
Page 26: Troubleshooting
The "freshest“ mo- lecular sieve belongs in the front bot- tle.) Leaky titration vessel O- Replace O-rings. rings. Leaky septum cap. Replace septum cap. Titration time too Inhomogeneous Reduce sample particle size before long. sample. weighing. 832 KF Thermoprep, Troubleshooting... -
Page 27: Annex
According to IEC 61010, EN 61010, EN50093, protection class 3 Safety information The Instructions for Use contains safety information that must be observed by the user in order to ensure the safe operation of the instrument. 832 KF Thermoprep, Annex... -
Page 28: Electromagnetic Compatibility (Emc)
(at max. 85% relative humidity) Storage -20 °C…+60 °C Transport -40 °C…+60 °C 8.1.8 Dimensions and materials Height 49.5 cm Width 35.5 cm Depth 22.0 cm Weight approx. 8.9 kg (without accessories) Housing material Metal housing, surface-refined 832 KF Thermoprep, Annex... -
Page 29: Standard Equipment
8.2 Standard equipment 8.2 Standard equipment Immediately upon receipt of the instrument please check that the deliv- ery is complete. 8.2.1 832 KF Thermoprep Order no. 2.832.0020 Order no. Description 1.832.0020 832 KF Thermoprep KF oven for processing single samples in sealed vials. - Page 30 O-ring 6.2739.000 Tubing nipple wrench 6.2811.000 Molecular sieve, 250 g 6.2816.070 Penetration needle 6.2816.080 Outlet needle 6.2419.007 Sample vials, 6 mL 6.1448.057 Septum seals for sample vial 6.2419.007 8.800.1023 Instructions for Use for 832 KF Thermoprep 832 KF Thermoprep, Annex...
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Page 31: Optional Accessories
Septum seals for sample vial, 1000 ea. In order to use other sample vials with different dimensions the sample holder of the 832 KF Thermoprep must be replaced. Please contact your Metrohm distributor. For further accessories please see Metrohm Accessories Catalog. -
Page 32: Warranty And Conformity
Metrohm from any liability to pay compensation. If any instruments and parts have to be returned, the original packaging should be used if at all possible. -
Page 33: Eu Declaration Of Conformity For 832 Kf Thermoprep
8.4 Warranty and conformity 8.4.2 EU Declaration of Conformity for 832 KF Thermoprep EU Declaration of Conformity The Metrohm Ltd. company, Herisau, Switzerland hereby certifies, that the instrument: 832 KF Thermoprep meets the requirements of EU Directives 89/336/EEC and 73/23/EEC. -
Page 34: Declaration Of Conformity
International Certification Body (CB/IEC). The technical specifications are documented in the instruction manual. Metrohm Ltd. is holder of the SQS-certificate of the quality system ISO 9001 for quality assurance in design/development, production, installation and servicing. Herisau, May 30, 2002 Dr. -
Page 35: Index
Mains switch ......4 Septum stopper ......3 Electromagnetic compatibility ..Maintenance ......21 Service-personnel .....6 ........24, 30 Malfunctions ......6 Set temperatures ....15 Electrostatic charges ....6 Materials .........24 Set value display....5, 15 Setup.........8 Emission ......24, 30 Maximum pressure ....14 832 KF Thermoprep, Index... - Page 36 Transfer tubing connection..4 Warning........2 Transport damage ....28 Warranty........28 T1, T2 ........15 Troubleshooting...... 22 Water content ......17 Technical data ......23 Tubing guide......4 Temperature controller ... 3, 5, 15 Display/Control parts....5 832 KF Thermoprep, Index...
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