849 Level Control Manual 8.849.
Metrohm AG CH-9101 Herisau Switzerland Phone +41 71 353 85 85 Fax +41 71 353 89 01 info@metrohm.com www.metrohm.com 849 Level Control Manual 8.849.8001EN 04.
Teachware Metrohm AG CH-9101 Herisau teachware@metrohm.com This documentation is protected by copyright. All rights reserved. Although all the information given in this documentation has been checked with great care, errors cannot be entirely excluded. Should you notice any mistakes please send us your comments using the address given above.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ Table of contents Table of contents 1 Introduction 1 1.1 Instrument description ......................................................... 1 1.2 Model versions ...................................................................... 1 1.3 Intended use ......................................................................... 2 1.4 About the documentation ................................................... 2 1.4.1 Symbols and conventions ..........................................
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ Table of contents 5.5 Electromagnetic compatibility (EMC) ................................ 16 5.6 Ambient temperature ......................................................... 16 5.7 Dimensions and material ................................................... 17 6 Conformity and warranty 6.1 Declaration of Conformity ................................................. 18 6.2 Warranty (guarantee) ......................................................... 19 6.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ Table of figures Table of figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 849 Level Control Front 849 Level Control ..................................................................... 5 Rear 849 Level Control ...................................................................... 5 6.1113.000 sensor ............................................................................ 6 6.1113.100 sensor .........................
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 1 Introduction 1 Introduction 1.1 Instrument description The 849 Level Control is used for monitoring liquid levels in canisters and bottles. It can detect both high liquid levels (e.g. warning of overflow of a waste container) as well as low liquid levels (e.g. a supply container running empty). Due to conductivity measurement the level sensors can be used in various media.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 1.3 Intended use 1.3 Intended use The 849 Level Control is designed for usage in an automation system in analytical laboratories. It is not suitable for usage in biochemical, biological or medical environments in its basic equipment version. The instrument described here can be used in chemicals and flammable solvents. The usage of the 849 Level Control therefore requires that the user has basic knowledge and experience in the handling of toxic and caustic substances.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 1 Introduction Warning This symbol draws attention to a possible hazard due to electrical current. Warning This symbol draws attention to a possible hazard due to heat or hot instrument parts. Warning This symbol draws attention to a possible biological hazard. Caution This symbol draws attention to a possible damage of instruments or instrument parts. Note This symbol marks additional information and tips. 1.5 Safety instructions 1.5.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 1.5 Safety instructions Protection against electrostatic charges Warning Electronic components are sensitive to electrostatic charges and can be destroyed by discharges. Always pull the mains cable out of the mains connection socket before connecting or disconnecting electrical appliances on the rear panel of the instrument. 1.5.3 Flammable solvents and chemicals Warning All relevant safety measures are to be observed when working with flammable solvents and chemicals. ￭ ￭ ￭ ￭ 1.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 2 Overview of the instrument 2 Overview of the instrument 1 Figure 1 2 3 4 Front 849 Level Control 1 Sensor connector 1 for overflow monitoring (Level Full) Signal at contact 2 Sensor connector 2 for overflow monitoring (Level Full) Signal at contact 3 Sensor connector 1 for empty level monitoring (Level Empty) Signal at contact loss 4 Sensor connector 2 for empty level monitoring (Level Empty) Signal at contact loss The connectors for the sensor cables (6.2151.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 2.1 Sensors 2.1 Sensors 2.1.1 6.1113.000 sensor for aqueous media The 6.1113.000 sensor can be used for monitoring fluid levels in rinse or waste containers (e.g. 20 L canisters). It is suitable exclusively for conductivity measurements in aqueous media. E R F Figure 3 6.1113.000 sensor The sensor rods are comprised of stainless steel (AISI 304) and therefore have only limited resistance to strong acids. Dimensions: ￭ ￭ ￭ 2.1.2 Overall length 37.4 cm Rod length 36.1/4.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 2.1.3 2 Overview of the instrument 6.1113.110 sensor for ultra pure water The 6.1113.110 sensor can be used for monitoring fluid levels in storage or waste containers (e.g. in chromatography). It is specially suitable for conductivity measurements in aqueous media with low conductivity. E F Figure 5 6.1113.110 sensor The sensor rods are comprised of high-purity graphite and are resistant against the most common solvents.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 3.1 Configuration 3 Installation 3.1 Configuration 3.1.1 Basic setting The logic of the 849 Level Control must be configured before it is used for the first time. The operating mode can be set with DIP switches. Remove the two fastening screws on the rear side of the housing and then carefully pull the electronic print located there out of the housing to the rear. Figure 6 Printed circuit board You will see a DIP switch strip on the electronic print.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 3 Installation 7 3.1.2 Level Empty 2 Overall status Should general monitoring of all sensor signals via a single remote line ("OR-gate") be desired, remote line 2 can be switched on for monitoring the overall status. Switch on DIP switch 2 for this purpose. This causes remote line 2 to be activated as soon as a Level Full or Level Empty status is reached. Remote line 2 is activated whenever a random sensor signal reacts to overflow or empty running. 3.1.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 3.2 Connecting the sensor 3.2 Connecting the sensor The sensor is comprised of three rods in one screw cap adapter which can be mounted on a plastic canister or on a glass bottle. Two connections for one to two sensor cables are located in the screw cap adapter.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 3 Installation Note The extra opening in the bottle adapter is used for ventilating the container. This opening may not be sealed. The pressure equilibrium in the container must always be ensured. A 6.1619.000 adsorber tube can be attached with the bottle adapter for the 6.1113.100 and 6.1113.110 sensors. This adsorber tube (with M6 thread) can be filled with a suitable material which protects the contents of the container, e.g. against CO2 or humidity.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 3.3 Connecting the remote cable If the remote lines are to continue to be available for the purpose of controlling a different device, then a 6.2125.000 stackable plug and an additional 6.2125.090 connecting cable are to be used. 849 — Metrohm instrument with 6.2148.010 remote box Metrohm devices which are controlled through a USB connection (e.g. Professional ICs, Titrandos, USB Sample Processors), can be supplemented with a 6.2148.010 remote box.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 4 Handling and maintenance 4 Handling and maintenance 4.1 Sensor monitoring via remote interface The 849 Level Control is connected to the remote interface of a suitable Metrohm device. Metrohm Sample Processors, ProfIC and Titrando systems can scan the input lines of the remote interface in a method run and thus check the status of a Level Control sensor. A total of 8 lines (Input 0…7) are available. The 849 Level Control uses the remote lines Input 4, 5, 6, and 7.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 4.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 5 Technical specifications 5 Technical specifications 5.1 Measuring inputs 4 sensor connectors 8-pin Mini DIN sockets Switching threshold 1 µS Measurement frequency ca. 1.7 kHz 5.2 Remote socket Max. switching current 20 mA Max.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 5.3 Supply 5.3 Supply Voltage 5.0 V Power consumption ＜ 15 mA 5.4 Safety specifications Design and testing According to EN/IEC 61010-1, UL 3101-1, protection class III Safety instructions The manual contains information and warnings which have to be followed by the user in order to ensure safe operation of the instrument. 5.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 5.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 6.1 Declaration of Conformity 6 Conformity and warranty 6.1 Declaration of Conformity This is to certify the conformity to the standard specifications for electrical appliances and accessories, as well as to the standard specifications for security and to system validation issued by the manufacturing company. Name of commodity 849 Level Control Level detector for liquids, based on conductivity measurement.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 6.2 6 Conformity and warranty Warranty (guarantee) Metrohm guarantees that the deliveries and services it provides are free from material, design or manufacturing errors. The warranty period is 36 months from the day of delivery; for day and night operation it is 18 months. The warranty remains valid on condition that the service is provided by an authorized Metrohm service organization. Glass breakage is excluded from the warranty for electrodes and other glassware.
6.3 Quality Management Principles ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ Software development Software development occurs in terms of the software life cycle. Tests are performed to detect programming errors and to assess the program’s functionality in a laboratory environment. Components All components used in the Metrohm instruments have to satisfy the quality standards that are defined and implemented for our products. Suppliers of components are audited by Metrohm as the need arises.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 7 Accessories 7 Accessories Note Subject to change without notice. 7.1 Qty. 1 Scope of delivery 2.849.0010 Order no. Description 1.849.0020 849 Level Control Additional equipment for Sample Processors for monitoring the filling level of rinsing or waste canisters via Remote. 1 6.1113.000 Sensor for 849 Level Control Sensor for 849 Level Control Shaft material: Shaft material (completion): Shaft diameter top (mm): Shaft diameter bottom (mm): Length from SGJ (mm): 1 6.2151.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 7.2 Scope of delivery 2.849.0020 7.2 Qty. 1 Scope of delivery 2.849.0020 Order no. Description 1.849.0020 849 Level Control Additional equipment for Sample Processors for monitoring the filling level of rinsing or waste canisters via Remote. 1 6.1113.100 Level sensor MF to 10 L Canister Sensor for Level Control MF Shaft material (completion): Shaft diameter top (mm): Shaft diameter bottom (mm): Length from SGJ (mm): 1 6.1619.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ 7.3 Qty. 1 7 Accessories Scope of delivery 2.849.0030 Order no. Description 1.849.0020 849 Level Control Additional equipment for Sample Processors for monitoring the filling level of rinsing or waste canisters via Remote. 1 6.1113.110 Level sensor MF to bottles 6.1608.0X0 MF Sensor for Level Control MF Shaft material: Shaft material (completion): Shaft diameter top (mm): Shaft diameter bottom (mm): Length from SGJ (mm): 73 high purity 8 8 79 / 252 1 6.1619.
￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭ Index Index A Aqueous media .......................... 6 B Basic setting ............................... 8 Bit sample ................................ 13 C Carbon fiber compound ............. 6 Conductivity measurement ......... 6 Configuration ............................. 8 Corrosion ................................. 14 D Dimensions ................................ 6 DIP switches ............................... 8 E Electronic print ...........................
