826 pH mobile / 827 pH lab Manual 8.827.
Metrohm AG CH-9100 Herisau Switzerland Phone +41 71 353 85 85 Fax +41 71 353 89 01 info@metrohm.com www.metrohm.com 826 pH mobile / 827 pH lab Program version 5.826.0011 and 5.827.0011 Manual 8.827.8001EN 12.
Teachware Metrohm AG CH-9100 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. Documentation in additional languages can be found on http://documents.metrohm.com.
Contents Table of contents 1 Introduction.......................................................... 1 1.1 Instrument description ................................................................................. 1 1.2 Parts and controls ........................................................................................ 2 1.3 Information about these Instructions for Use ............................................. 4 1.3.1 Notation and pictograms ....................................................
Contents 6.2 Temperature measurement (T mode) ........................................................ 34 6.3 Potential measurement (U mode) .............................................................. 34 7 Various functions ............................................... 35 7.1 Reports ....................................................................................................... 35 7.1.1 Arrangement of a report ......................................................................... 36 7.
Contents 9.4 Scope of delivery ....................................................................................... 62 9.4.1 826 pH mobile ........................................................................................62 9.4.2 Optional accessories for 826 pH mobile ...............................................65 9.4.3 827 pH lab ..............................................................................................65 9.4.4 Optional accessories for 827 pH lab ...........................
Contents List of illustrations Fig. 1: pH meter 827 ..................................................................................................................1 Fig. 2: Front view of the 827 pH lab...........................................................................................2 Fig. 3: Rear view of the 827 pH lab ...........................................................................................3 Fig. 4: Connecting sensors ..........................................................
1 Introduction 1 Introduction These instructions provide you with a comprehensive overview of the installation, working principles and operation of the 826 pH mobile and 827 pH lab. Additional theoretical principles can be found in the Metrohm Monograph 8.015.5013 "Electrodes in Potentiometry". You can also request our descriptions of applications involving pH measurements in the form of Application Notes and Application Bulletins from your local Metrohm agency or download them from the Internet under www.
1.2 Parts and controls Both instruments have the following features: • • • 1.2 Dot-matrix display for both the continuous display of the measured value and for showing the user dialog. High-impedance measuring input for pH, redox or ISE sensors, a connection for a separate reference electrode and an input for temperature sensors (NTC or Pt1000). Infrared interface for a infrared printer. Parts and controls Fig.
1 Introduction Fig. 3: Rear view of the 827 pH lab 4 Connection for potentiometric electrodes pH, ISE, redox or silver electrodes with built-in or separate reference electrode; socket type F 7 Infrared interface Connection for printer or PC with infrared interface 5 Connection for separate reference electrode for connection with two 2 mm B-plugs; the adapter 6.2103.180 or 6.2103.
1.3 Information about these Instructions for Use 1.3 Information about these Instructions for Use Attention! Please study these instructions carefully before you start to use the instrument. The instructions contain information and warnings that must be observed by the user in order to guarantee the safe use of the instrument. 1.3.
1 Introduction 1.4 Safety information Warning! This instrument should only be used in accordance with the information given in these installation instructions. 1.4.1 Electrical safety Please observe the following guidelines: • • Only qualified Metrohm technicians should carry out service work on electronic components. Open the housing only in order to change the batteries. There are no components inside the housing that the user can service or exchange.
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2 Installation 2 Installation 2.1 2.1.1 Instrument setup Packaging The 826/827 pH meter and its specially packed accessories are supplied in very protective special packaging. Please store this packaging in a safe place; it is the only way in which the safe transport of the instrument can be guaranteed. 2.1.2 Checks Please check that the delivery is complete and undamaged immediately on receipt (compare with delivery note and list of accessories given in Section 9.4). 2.1.
2.4 Mains connection Fig. 4: Connecting sensors 2.4 4 Connection for potentiometric electrodes pH, ISE, redox or silver electrodes with built-in or separate reference electrode; plug F 5 Connection for separate reference electrode 6 Connection for temperature sensor Pt1000 or NTC, connected via two 2 mm banana plugs, reducing adapters for 4 mm plug B may be necessary (6.2103.180 / 6.2103.190). Please observe: The red plug must be put in the socket "Temp.
2 Installation 2.6 Connecting a printer A printer with an infrared interface can be connected to the infrared interface for printing out reports. Activate the infrared interface of the pH meter under configuration/auxil/IR interface: (see Section 5.4) No further transmission parameters need to be set. Attention! In order to guarantee a perfect transmission the distance between the pH meter and the printer should be 80 cm at the maximum. The infrared interfaces must face each other directly.
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3 Operation 3 Operation 3.1 Operating concept The pH meter provides two types of display: 1. The measured value display. This is the normal instrument display. 2. The menu display This is used for editing various settings. In the measured value display the current measured value is shown together with the method of the temperature measurement (only for mode pH) and the date and time (only for modes U and T) respectively.
3.2 All key functions at a glance 3.2 All key functions at a glance The functions of all the keys are described below both for the measured value display and the menu display: Key Measured value display Menu display On/Off • The < > key switches the instrument on and off. On/Off • The < > key switches the instrument off at any time. • After switching-on the pH meter is in the initial state of the last mode to have been used.
3 Operation Key Measured value display Menu display Altering display contrast Controlling the menu bar • The contrast of the LCD display can • In each menu display the <> und be altered with the arrow keys <> <> keys can be used to move the and <> during the measured valselection bar up and down by one ue display. line. • This setting is retained after the in- Cursor control for text input strument has been switched off and • The character to be entered is seon.
3.3 Operating principles 3.3 3.3.1 Operating principles Configuration and method parameters Instrument configuration and parameters for the pH mode (no adjustable parameters are required for the measuring modes U (mV) and T (°C)) are each contained in menus with a tree structure. These menu structures are shown in the appendix in Section 9.2. The instrument configuration of the pH meter is described in the menu << config >>. This contains the basic settings that apply for all measuring modes.
3 Operation 3.3.3 Entering text and numbers The editing of text and number inputs is activated with the <> or <> key. The first digit of the entry field will be displayed inverted for text entries whereas it is the last digit for number entries. The cursor can be moved to the position to be changed with the <> or <> key. The desired character can be selected from a cylinder with the <> or <> keys. The cursor movement can be accelerated by keeping the arrow keys pressed down.
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4 Short operating tutorial 4 Short operating tutorial In this section the necessary steps for carrying out a simple pH and ion measurement with calibration are described. The instructions are limited to those steps that are absolutely necessary and will enable you to carry out your first measurements with the pH meter directly. The operating principles are described in Section 3.3. 4.
4.2 pH calibration 3 Result • Wait for potential measurement, the result will be displayed: • After 30 s the pH meter will switch back automatically to the measurement display. This can also be done immediately with or . 3 Poor calibration data • If the calibration data are outside the calibration parameters defined as the limits (see Section 6.1.3) then a corresponding message will be shown: • You can still accept the calibration data with , or reject it with .
4 Short operating tutorial 6 Possible error messages • In case buffer pH 7 has been measured again by mistake, the following message is displayed: same buffer Change the buffer and press . The calibration is being continued. The calibration can be canceled with . • If the temperature difference is > 2 °C between the buffers, the following message is displayed: delta T > 2 °C Adjust the temperature and continue the calibration with or cancel it with 4.
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5 Configuration 5 Configuration The configuration menu contains all the instrument settings for the pH meter. These are independent of the mode. They continue to exist until they are edited or the permanent memory containing the instrument configuration is re-initialized (see Section 8.3). All the settings of this menu are described in this section. For each point you will find all the possible entries or the valid entry range together with the default value.
5.2 Printing out measured values line feed 0...3...999 The paper feed of the printer at the end of a report can be set here. You can select the number of empty lines so that after the report has been printed out you can tear off the printed paper directly at a suitable point. The paper feed depends on the type of printer and has to be set accordingly. Note! The line feed must be set to 999 when using a A4 printer. dev.
5 Configuration when the drift condition has been fulfilled or after a certain difference of the measured value has been exceeded. print crit.: immed. With this setting a measured value report will be printed out after pressing in the menu << print >>. The following options can be used: date & time: on, off Here you can choose whether the date and time at which the measured value was recorded are to be included with each individual measured value.
5.2 Printing out measured values adapted accordingly, as otherwise the buffer memory of the connected printer would be filled too quickly. This means, for example, that the report header should only be printed out once at the start of a series of measurements. Otherwise data could be lost. In this case you should consider matching the measured value recording to the measured value memory (see Section 5.3). stop time: 0...
5 Configuration 5.3 Storing measured values << config >> configuration : ├ store : └ store crit. ┬ ├ │ ├ └ immed., drift, off time ┬ time int. └ stop time change ┬ delta pH/T/mV └ stop time Up to 200 measured values can be stored manually or automatically after reaching the drift criterion, at definite time intervals or after changing by a certain amount (see Section 7.2). The storing is done by pressing in the menu << store >>. store crit.: immed.
5.4 Auxiliaries delta pH: delta T: delta mV: 0.10...0.50...16.00 pH 0.1...0.5...100.0 °C 0.1...30.0...999.9 mV stop time: 0...999'999 s The storage of the measured values is terminated when the stop time has elapsed or will continue indefinitely ('0 s'). A termination is always possible with .
5 Configuration If no printer is within the range of the infrared interface after switching on the pH meter or if the printer is switched off respectively, the following message is displayed: no IR connection Please consider the transmission range of the infrared interface (see Section 2.2) or switch on the printer respectively. The pH meter has to be switched off and on again. date time YYYY-MM-DD hh:mm:ss You can set the date and time here. The program will only accept numbers which make sense. temp.
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6 Methods / Parameters 6 Methods / Parameters The exact measuring method of the pH meter is described by parameters which, like the instrument configuration, are arranged in a tree structure in the menu display. The complete tree is shown in the appendix (see Section 9.2) to provide a better overview. The parameters are set analogous to the instrument configuration. No parameters are available for the measuring modes U (mV) and T (°C). The menu << param >> is therefore not visible in these modes.
6.1 pH measurement (pH mode) 6.1.2 Calibration parameters param : ├ cal.settings : ├ temperature ├ report ├ cal.interval ├ no.of buffers └ buff.type The calibration parameters describe the most important settings for the calibration such as buffer types and number of buffers. temperature 0.0...25.0...99.9 °C Just as for the measuring temperature, the calibration temperature should also be entered when no temperature sensor is connected.
6 Methods / Parameters no.of buffers 1...2...3 Up to 3 buffers can be used for the pH calibration. If the calibration is carried out with only one buffer then the program will use the theoretical value of 100.0 % for the slope. This also applies when a calibration with several buffers is canceled with after the first buffer has been measured and then confirmed with .
6.1 pH measurement (pH mode) The other stored buffer tables are described in Section 9.3. During the calibration the pH meter shows the type and temperature-specific pH value of the recognized buffer. For temperatures within the 5 °C steps the pH value is linearly interpolated. buff.type: special If you would like to use different buffers from those described, then you require the exact pH value of each buffer at the temperature used for calibration. These pH values can be entered here.
6 Methods / Parameters 6.1.4 pH calibration data The current pH calibration data can be called up at any time under param/cal.data. If no calibration has yet been carried out then only the theoretical calibration data slope = 100.00 % and pH(0) = 7.000 will be shown and taken into account for the measurement. param : ├ cal.data : ├ slope ├ pH(0) ├ variance ├ temperature ├ temp.sensor ├ cal.date ├ cal.time ├ cal.interval ├ buff.type └ no.
6.2 Temperature measurement (T mode) temperature The calibration temperature is shown here. temp.sensor If the calibration temperature has been determined automatically by a connected temperature sensor then its type will be shown here ('NTC' or 'Pt1000'). A manually entered temperature for the calibration will be indicated accordingly ('manual'). cal.date The date of the calibration is shown here. cal.time The time of the calibration is shown here. cal.
7 Various functions 7 Various functions This section describes various functions of the pH meter which cannot be assigned to individual modes. 7.1 Reports A pH meter report is produced by transmitting data to a printer or computer via the infrared interface. In this way you can document e. g. measuring results, calibration data or the configuration of the instrument in written form. A requirement for a properly functioning report output is the activation of the infrared interface (see Section 5.4).
7.1 Reports 7.1.1 Arrangement of a report The first lines of a report provide a general description. This report header is configured under configuration/report (see Section 5.1): Report Id: 'mp Device Id: 827 pH lab Date, Time: print date 01106 5.827.0010 2005-01-27 14:21:52 ... If you have entered a device identification (dev.label) under configuration/report then this will appear in the report header as an additional line between the device Id and the line date/time.
7 Various functions 7.1.3 Measuring point report << print >> By pressing the key in the in the menu << print >> a measuring point report will be produced. The following examples show versions of this type of report, the various configurations of which are defined under configuration/print (see Section 5.2). A typical version of a measuring point report is the output of a single measured value. The print criterion 'immed.' or 'drift' must be selected. 'mp 827 pH lab print date pH = 6.958 01106 5.
7.1 Reports 7.1.6 Parameter report << report >> param 7.1.7 The complete set of parameters of the mode pH is printed out with a parameter report. A parameter report can't be printed for the measuring modes U (mV) and T (°C) because these modes don't have any editable parameters. Measured values memory report << report >> mval Up to 200 measured values can be stored in the menu << store >> (see Section 7.2).
7 Various functions 7.1.9 System test report After the pH meter has been switched on an electronic system test is carried out automatically. The tests are documented in the system test report which can be printed out when the pH meter is switched on: (see Section 5.1): 'di 827 pH lab 01106 5.827.
7.2 Measured values memory 7.2 Measured values memory The pH meter can store up to 200 measured values with additional information. Depending on the storage criterion you can store the measured values immediately, at fixed time intervals, drift-controlled or after the change by a certain amount. The appropriate instrument settings are made under configuration/store. A more detailed description of the configuration is given in Section 5.3. 7.2.
7 Various functions Measured value no. No. of stored measured values You can now use the two arrow keys <> and <> to leaf between the measured values. In order to delete all measured values select the second parameter del mv store: in the above measured values memory menu and set it to 'yes' with <>; then confirm this and the following safety query delete ? with . Note! It is not possible to delete just individual measured values out of the measured values memory.
7.3 Setup 7.3 Setup Certain settings of the pH meter can be found in the setup menu. This menu cannot be accessed from the normal instrument display, as alterations to these settings have a great influence on the functions of the pH meter. The setup menu is called up by pressing down and holding down the key while switching on the pH meter. setup ├ lock ├ instr.number ├ instr.
8 Troubleshooting – Messages – Maintenance 8 Troubleshooting – Messages – Maintenance 8.1 Troubleshooting If problems occur during pH measurement then these can have various causes: 1. Application Difficult sample matrices or interferences can prevent reliable measurements (e. g. insufficient ionic strength). Our Application Bulletins and Application Notes support you in correct selection of the analytical conditions. The most suitable electrode for your application can be found under www.metrohm.com. 2.
8.
8 Troubleshooting – Messages – Maintenance Problem Possible cause Remedy No display after switching on despite mains connection (827 only) Empty batteries • Change batteries System test message: Instrument fault • Note error number and inform Metrohm Service Err #X 8.2 Messages The pH meter uses various messages to selectively inform you about possible errors or operating problems.
8.2 Messages Message Situation Cause Remedy battery low Mode pH/U/T The batteries are almost empty Change batteries (see Section 8.4.1) buffer error calibration Buffer not recognized 1. Replace buffer 2. Press buffer not de- calibration fined pH value of a buffer has not been defined for the given temperature pH values are only defined in the range of 0 ...
8 Troubleshooting – Messages – Maintenance Message same buffer ----.overrange 8.3 Situation Cause Remedy calibration Potential difference between 1st and 2nd buffer is less than 6 mV 1. Change buffer Measuring range exceeded Remedy error or change mode Mode pH/U/T 2. Press Diagnosis The pH meter is equipped with a diagnosis program. This allows selective checks of the functions of individual assemblies.
8.3 Diagnosis AD converter test The electronic components of the analog-digital converter are checked. At the end the messages 'Init ADC ok', 'Comm.test ADC ok' and 'ADC Interrupt ok' should appear. LC display test With this test you can check that the LCD display is functioning properly. It consists of a sequence of individual tests which can be switched forward with any key (except ). After displaying the character set the test must be terminated with .
8 Troubleshooting – Messages – Maintenance 8.4 Maintenance Warning! You should remove the batteries in case the pH meter is not used for a longer period. Leaking batteries can damage the pH meter. 8.4.1 Changing the batteries (826 only) The 826 pH mobile reminds you of changing the batteries by displaying the message "battery low" and the symbol . The measurement accuracy is not affected at all. Note! All the parameters are reset to the default values.
8.4 Maintenance Exchange the existing four batteries for four new ones, type LR6/AA/AM3,1.5 V (Metrohm order number 6.2133.000). Take care of the correct polarity of the batteries! The correct arrangement is shown in the battery compartment. Reattach the base plate with the six screws. Tighten the screws firmly (always crosswise) to ensure that the housing is tight. Switch on the pH meter. The following message is displayed: set date and time Set the date and time correctly (see section 5.4).
9 Appendix 9 Appendix In this section you will find the most important technical data of the pH meter, dialog structures, a list of standard accessories and optional accessories as well as warranty and declarations of conformity. 9.1 Technical data Provided that nothing to the contrary is mentioned, the published values represent the typical data of the 826 pH mobile and the 827 pH lab. 9.1.1 Measuring modes Measuring mode Prim. measured quantity Sec. measured quantity pH T pH 9.1.
9.1 Technical data 9.1.3 Measuring input specifications Measuring range Resolution Measuring accuracy 1) pH –8.000 ... +22.000 0.001 pH ± 0.003 pH Temperature Pt1000 NTC (30 kΩ) –150 °C ... +250 °C –5 °C ... +250 °C 0.1 °C 0.1 °C ± 0.2 °C (–20 °C ... +150 °C) ± 0.6 °C (+10 °C ... +40 °C) Potential –1200.0 mV ... +1200.0 mV 0.1 mV ± 0.2 mV 1) ±1 digit, without sensor error, under reference conditions 9.1.4 Measured values memory Memory capacity 9.1.5 Display Display 9.1.
9 Appendix 9.1.9 Safety specifications Instrument 826/827 Standards fulfilled: - EN/IEC 61010-1 - UL 61010-1 - CSA-C22.2 No. 61010-1 - EN/IEC 60529 (only 826) - Protection class III 9.1.
9.
9 Appendix 9.2 Menu structures The menu structures of the instrument configuration and the parameters of all operating modes are shown on the following pages. 9.2.1 Instrument configuration configuration ├ report │ ├ id │ ├ line feed │ ├ dev.label │ └ sys.test rep. │ ├ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ ├ │ │ │ │ │ └ print └ print crit. store └ store crit. immed. ────┬ ├ │ └ immed., drift, off time ┬ time int.
9.2 Menu structures 9.2.2 Parameters in the pH mode param ├ measurement │ └ temp. │ ├ │ │ │ │ │ │ │ │ │ ├ │ │ │ │ │ └ 9.2.3 cal.settings ├ temperature ├ report ├ cal.interval ├ no.of buffers └ buff.type ───┬ Metrohm, NIST, DIN, ... └ special ┬ pH buffer1 ├ pH buffer2 └ pH buffer3 cal.limits ├ lo.lim.slope ├ up lim.slope ├ lo.lim.pH(0) └ up lim.pH(0) cal.data ├ slope ├ pH(0) ├ variance ├ temperature ├ temp.sensor ├ cal.date ├ cal.time ├ cal.interval ├ buff.type └ no.
9 Appendix 9.3 Stored buffer series For automatic buffer recognition during pH calibration the temperaturedependent pH values of several common pH buffers are stored in the 826/827 pH meter. Apart from the Metrohm buffer solutions other reference and technical buffers are also included in the tables. The following tables provide an overview of the stored pH(T) series: The pH values printed in bold are the values at the reference temperature of the particular buffer set.
9.3 Stored buffer series DIN (according to DIN standard 19267, 1978) Temp. (°C) DIN1 DIN3 DIN4 DIN7 DIN9 DIN12 pH 1 pH 3 pH 4 pH 7 pH 9 pH 12 0 1.08 - 4.67 6.89 9.48 - 1) 1) 5 1.08 - 4.66 1.09 3.10 4.66 6.84 9.37 13.37 15 1.091) 3.081) 4.651) 6.821) 9.321) 13.151) 20 1.09 3.07 4.65 6.80 9.27 12.96 25 1.09 3.06 4.65 6.79 9.23 12.75 30 1.10 3.05 4.65 6.78 9.18 12.61 35 1.10 40 1.10 1) 45 1.10 50 1.11 1) 55 1.11 60 1.11 1) 65 1.11 70 1.
9 Appendix Mettler Toledo Temp. (°C) Beckmann MT2 MT4 MT7 MT9 MT11 Bec4 Bec7 Bec10 pH 2 pH 4 pH 7 pH 9 pH 11 pH 4 pH 7 pH 10 1) 1) 1) 1) 1) 4.00 7.12 10.32 0 2.03 4.01 7.12 9.52 11.90 5 2.02 4.01 7.09 9.45 11.72 4.00 7.09 10.25 10 2.01 4.00 7.06 9.38 11.54 4.00 7.06 10.18 15 2.00 4.00 7.04 9.32 11.36 4.00 7.04 10.12 20 2.00 4.00 7.02 9.26 11.18 4.00 7.02 10.06 25 2.00 4.01 7.00 9.21 11.00 4.00 7.00 10.01 30 1.99 4.01 6.99 9.
9.3 Stored buffer series Hamilton DURACAL Precisa Temp. (°C) Ham4.01 Ham7.00 Ham9.21 Ham10.01 Pre4 Pre7 Pre9 pH 4.01 pH 7.00 pH 9.21 pH10.01 pH 4.00 pH 7.00 pH 9.00 0 - - - - 3.99 7.11 9.27 5 4.01 7.09 9.45 10.19 3.99 7.08 9.18 10 4.00 7.06 9.38 10.15 3.99 7.06 9.13 15 4.00 7.04 9.32 10.11 3.99 7.04 9.08 20 4.00 7.02 9.26 10.06 3.99 7.02 9.04 25 4.01 7.00 9.21 10.01 4.00 7.00 9.00 30 4.01 6.99 9.16 9.97 4.00 6.99 8.96 35 4.02 6.
9 Appendix Merck CertiPUR (25 °C) Temp. (°C) MerC4.01 MerC7.00 MerC9.00 MerC10.00 pH 4.01 pH 7.00 pH 9.00 pH 10.00 0 - - - - 5 4.00 7.09 9.22 10.22 10 4.00 7.06 9.16 10.16 15 4.00 7.04 9.10 10.10 20 4.00 7.02 9.05 10.05 25 4.01 7.00 9.00 10.00 30 4.01 6.98 8.96 9.94 35 4.03 6.98 8.93 9.90 40 4.03 6.97 8.89 9.86 45 4.05 6.97 8.87 9.80 50 4.06 6.97 8.84 9.
9.4 Scope of delivery 9.4 Scope of delivery Immediately upon receipt of the instrument please check that the delivery is complete. The illustrations in the lists of accessories are not to the same scale. 9.4.1 826 pH mobile Order no. 2.826.0010 (model version without electrode, without case) The following accessories are included: No. Order no. Description 1 1.826.0010 826 pH mobile 1 6.2050.000 Carrying strap 1 6.2133.000 Set of 4 batteries, 1.5 V LR6 1 6.2621.140 Hexagon key 2.
9 Appendix 1 6.2133.000 Set of 4 batteries, 1.5 V LR6. 1 6.2621.140 Hexagon key 2.5 mm 1 8.827.8001EN Instructions for Use for 826 pH mobile and 827 pH lab, english 1 8.827.1203 Quick references for 826 pH mobile and 827 pH lab, english Order no. 2.826.0110 (model version with electrode and case) The following accessories are included: No. Order no. Description 1 1.826.0010 826 pH mobile 1 6.0228.020 LL Primatrode NTC comb.
9.4 Scope of delivery 64 3 6.1614.030 Bottle 50 mL, PP 1 6.2050.000 Carrying strap 1 6.2133.000 Set of 4 batteries, 1.5 V LR6 1 6.2307.230 Buffer solutions pH 4 / 7 / 9 10 x 30 mL each 1 6.2308.050 Electrolytic solution c(KCl) = 3 mol/L for Ag/AgCl reference systems, 50 mL 1 6.2621.140 Hexagon key 2.5 mm 1 6.2716.040 Case for 826 pH meter 1 6.2717.000 Beaker 100 mL, PP 1 8.827.8001EN Instructions for Use for 826 pH mobile and 827 pH lab, english 1 8.827.
9 Appendix 9.4.2 Optional accessories for 826 pH mobile Order no. Valid for: Description 6.2307.230 2.826.0010 2.826.0020 Buffer solutions pH 4 / 7 / 9, 10 x 30 mL each 6.2325.000 2.826.0XX0 pHit kit, maintenance kit for pH electrodes 6.2103.180 2.826.0XX0 Adapter red, plug B (2 mm) / socket 4 mm 6.2103.190 2.826.0XX0 Adapter black, plug B (2 mm) / socket 4 mm 9.4.3 827 pH lab Order no. 2.827.011X The following accessories are included: No. Order no. Description 1 1.827.
9.4 Scope of delivery 1 6.2621.070 Hexagon key 5 mm 1 V.0208.016 Recessed head screws 1 8.827.8001EN Instructions for Use for 826 pH mobile and 827 pH lab, english 1 8.827.1203 Quick references for 826 pH mobile and 827 pH lab, english Order no. 2.827.021X The following accessories are included: No. Order no. Description 1 1.827.0010 827 pH lab 1 6.0258.600 LL Unitrode Pt1000 OK (Electrode head U) 1 6.2104.600 Electrode cable for plug in head U/plug F 2x2 mm B, 1m 1 6.2013.
9 Appendix 1 6.2621.070 Hexagon key 5 mm 1 V.0208.016 Recessed head screws 1 8.827.8001EN Instructions for Use for 826 pH mobile and 827 pH lab, english 1 8.827.1203 Quick references for 826 pH mobile and 827 pH lab, english 9.4.4 Optional accessories for 827 pH lab Order no. Description 6.2307.230 Buffer solutions pH 4 / 7 / 9, 10 x 30 mL each 6.2325.000 pHit kit, maintenance kit for pH electrodes 6.2103.180 Adapter red, plug B (2 mm) / socket 4 mm 6.2103.
9.5 Warranty and conformity 9.5 9.5.1 Warranty and conformity Warranty 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.
9 Appendix 9.5.2 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 826 pH mobile Description CH-9101 Herisau/Switzerland E-Mail info@metrohm.com www.metrohm.
9.5 Warranty and conformity 9.5.3 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 827 pH lab Description CH-9101 Herisau/Switzerland E-Mail info@metrohm.com www.metrohm.
9 Appendix 9.5.4 Quality Management Principles Metrohm Ltd., CH-9101 Herisau, Switzerland CH-9101 Herisau/Switzerland E-Mail info@metrohm.com Internet www.metrohm.com Metrohm Ltd. holds the ISO 9001:2000 Certificate, registration number 10872-02, issued by SQS (Swiss Association for Quality and Management Systems). Internal and external audits are carried out periodically to assure that the standards defined by Metrohm’s QM Manual are maintained.
9 Appendix 72 826/827 pH meter, Instructions for Use
10 Index 10 Index < < > ...................................... 12 <>, <> ........................... 12 <>, <>.................................. 13 ................................... 12 ..................................... 13 ................................. 12 A Accuracy ................................. 55 AD converter test .................... 51 Ambient temperature .............. 56 Appendix ................................. 54 Arrow keys ..............................
10 Index Pt1000 Configuration ................. 29 R R (25 °C) ................................. 29 RAM Initialization .................... 50 Rear view .................................. 3 Reference conditions .............. 56 Report Arrangement .................. 39 Calibration data ....... 33, 40 Configuration ........... 22, 40 Finishing line .................. 39 Measured values memory ....................................... 41 Measuring points ........... 40 Output............................
