Related Manuals for VWR PH20
Summary of Contents for VWR PH20
- Page 1 PH20 pH Tester Operating manual European catalogue number: EU connection: 662-2283 Version: 1.0 Issued: 07.01.2019...
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Page 2: Table Of Contents
Qualified personnel.......................... 10 Description ............................ 11 Scope of delivery .......................... 11 Job description............................ 11 The product at a glance ........................ 12 The PH20............................ 12 Display elements .......................... 12 Operating elements .......................... 12 Connections............................ 13 Bases for measurement ........................ 14 pH measurement .......................... 14 6.1.1... - Page 3 Table of contents 8.2.3 Configuring parameters of the configuration menu................ 24 8.2.4 Adjustment of the measuring input ..................... 25 Error and system messages...................... 27 Disposal............................. 29 Technical data........................... 30 Service ............................... 31 12.1 Online resources.......................... 31 12.2 Sales partners............................. 32 B-H86.0.11.DB201-1.0 3 / 33...
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Page 4: Legal Address Of The Manufacturer
1 | Legal address of the manufacturer PH20 1 Legal address of the manufacturer VWR International bvba Researchpark Haasrode 2020 Geldenaaksebaan 464 B-3001 Leuven Phone: + 32 16 385011 http://be.vwr.com 4 / 33 B-H86.0.11.DB201-1.0... -
Page 5: About This Documentation
VWR guarantees that this product will remain free from material and production de- fects for a period of two (2) years from the time of delivery. If there is a defect, VWR shall decide on its own discretion whether to repair or replace the product free of charge or to provide the customer with a refund of the purchase price of the product, insofar as it is sent back during the warranty period. -
Page 6: Correctness Of Content
2 | About this documentation PH20 2.5 Correctness of content The contents of this document were checked for corrected and are subject to a con- tinuous correction and updating process. This does not rule out potential errors. In the event that errors are discovered or in case of suggestions for improvement, please in- form us immediately via the indicated contact information in order to help us make this document even more user-friendly. - Page 7 PH20 About this documentation | 2 NOTE For information about the software version, press and hold the ON button to switch on the product for longer than 5 seconds. The series is shown in the main display and the software version of the product is shown in the secondary display.
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Page 8: Safety
3 | Safety PH20 3 Safety 3.1 Explanation of safety symbols DANGER This symbol warns of imminent danger which can result in death, severe bodily injury, or severe property damage in case of non-observance. DANGER This symbol indicates danger for living tissue as well as a variety of materials, which can be damaged or destroyed when coming into contact with this chemical. -
Page 9: Safety Instructions
PH20 Safety | 3 DANGER Incorrect area of application! In order to prevent erratic behaviour of the product, personal injury or property dam- age, the product must be used exclusively as described in the chapter Description [} p. 11] in the operating manual. -
Page 10: Intended Use
3 | Safety PH20 NOTE If the product is stored at a temperature above 50 °C, or is not used for an extended period of time, the batteries must be removed. Leaks from the batteries are avoided as a result. -
Page 11: Description
PH20 Description | 4 4 Description 4.1 Scope of delivery Please check to ensure the completeness of the product after opening the package. You should find the following components: – Quick reference guide – Handheld measuring device, ready for operation, including batteries –... -
Page 12: The Product At A Glance
5 | The product at a glance PH20 5 The product at a glance 5.1 The PH20 LCD Display PH20 BNC connection 662-1382 5.2 Display elements Display Battery indicator Evaluation of the battery status Unit display Display of units, if applicable, with unstable symbol... -
Page 13: Connections
PH20 The product at a glance | 5 Long press Reset the min/max value of the current measure- ment Both simultaneously Rotate display, overhead display Function key Press briefly Freeze measurement Return to measurement display Call up next parameter Long press, 2s... -
Page 14: Bases For Measurement
6 | Bases for measurement PH20 6 Bases for measurement 6.1 pH measurement 6.1.1 Explanation The pH value describes the acidic or alkaline behaviour of an aqueous solution. A pH value below 7 is acidic, a value above 7 is alkaline. A pH value of 7 is neutral. -
Page 15: Further Information
Dirty electrodes must be cleaned. The suitable cleaning agents for the pH glass mem- brane are listed in the table below. Impurities Cleaners General residue Mild detergent Inorganic coatings Commercially available liquid glass clean- Metal compounds 1 mol/l HCl solution or VWR 83603.180 pepsin cleaning solution B-H86.0.11.DB201-1.0 15 / 33... - Page 16 6 | Bases for measurement PH20 Oil and grease Special cleaner or solvent Biological coatings with protein 1% pepsin enzyme in 0.1 molar VWR 83603.180 HCl solution Resin lignins Acetone Extremely resistant residues Hydrogen peroxide or sodium hypochlor- The material of the pH probe must always be protected. Plastic shafts must not be cleaned in solvents, etc.
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Page 17: Maintenance
PH20 Maintenance | 7 7 Maintenance 7.1 Operating and maintenance notices NOTE The product and electrode must be handled with care and used in accordance with the technical data. Do not throw or strike. NOTE Plugs and sockets must be protected from soiling. -
Page 18: Changing Battery
7 | Maintenance PH20 7.2.2 Changing battery DANGER Danger of explosion! Using damaged or unsuitable batteries can generate heat, which can cause the batter- ies to crack and possibly explode! – Only use high-quality and suitable alkaline batteries! CAUTION Damage! If the batteries have different charge levels, leaks and thus damage to the product can occur. -
Page 19: Calibration And Adjustment
PH20 Maintenance | 7 7.3 Calibration and adjustment 7.3.1 pH calibration Description In order to obtain reliable measurements, the device and electrode must be aligned with each other. In pH measurement, this is referred to as a calibration. In order to conduct a pH measurement, proceed as follows. - Page 20 10.0 Blue 10.18 10.07 10.01 9.97 9.89 For ready-to-use buffer solutions, visit www.vwr.com. Prerequisite – Plastic bottle – approx. 100 ml of distilled water – Buffer capsule Instruction 1. Fill a plastic bottle with approx. 100 ml of distilled water.
- Page 21 PH20 Maintenance | 7 9. Place the electrode in the second buffer solution. The product recognises whether it is a PK 4 or PK 10 buffer solution automatically. 10. Enter the temperature of the buffer solution by pressing the Up key and Down key and confirm the entry by pressing the Function key again.
- Page 22 7 | Maintenance PH20 2. (ONF appears in the display. Release the Function key. 3. The parameter SET.T appears if the temperature sensor is not plugged in. If the temperature sensor is plugged in, you jump to the next point.
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Page 23: Operation
PH20 Operation | 8 8 Operation 8.1 Commissioning 8.1.1 Explanation Description The product is switched on with the On/Off button. It may be necessary to configure the product after switching on. See Configuration [} p. 23]. Prerequisite – Sufficiently full batteries are inserted in the product. -
Page 24: Configuring Parameters Of The Configuration Menu
8 | Operation PH20 3. By briefly pressing the Function key, you can scroll through the parameters. Select the parameter you would like to configure. 4. When you have selected the desired parameter, change the parameter to the de- sired value with the Up button and the Down button. -
Page 25: Adjustment Of The Measuring Input
PH20 Operation | 8 UN,T Temperature display in °C °( Temperature display in °F °F Shut-off time POFF No automatic shut-off 15 30 60 120 240 Automatic shut-off after a selected time in minutes, during which no buttons have been pressed... - Page 26 8 | Operation PH20 3. By briefly pressing the Function key, you can scroll through the parameters. Select the parameter you would like to configure. 4. When you have selected the desired parameter, change the parameter to the de- sired value with the Up button and the Down button.
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Page 27: Error And System Messages
PH20 Error and system messages | 9 9 Error and system messages Display Meaning Possible causes Remedy Error during the last Faulty calibration Conduct a new calibration >(AL< calibration No display, Battery depleted Battery depleted Replace battery unclear char- System error... - Page 28 9 | Error and system messages PH20 Replace batteries Send in for repair 28 / 33 B-H86.0.11.DB201-1.0...
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Page 29: Disposal
PH20 Disposal | 10 10 Disposal NOTE This product bears the "recycle batteries" symbol. It means that this product must not be disposed of with household waste. Instead, it is your responsibility to dispose of the product correctly at the end of its service life by dropping it off at an authorised dis- posal facility which collects the product separately for recycling. -
Page 30: Technical Data
11 | Technical data PH20 11 Technical data Measuring range pH 0.00 .. 14.00 pH Temperature compensation -5 .. 150 °C (or 23 .. 302 °F) Accuracy pH (device) ± 0.02 pH ± 1 digit Nominal temperature 25°C Input resistance pH ca. -
Page 31: Service
– VWR online catalogue and information about accessories and compatible products – Additional product information and special offers Contact If you require information or technical support, please contact your VWR sales centre or visit our website: www.vwr.com. B-H86.0.11.DB201-1.0 31 / 33... -
Page 32: Sales Partners
Veetee Business Park Pražská 442 CZ - 281 67 Stříbrná Skalice Ireland / Northern Ireland Spain Tel.: +420 321 570 321 VWR International Ltd / VWR International VWR International Eurolab S.L. Email: info.cz@vwr.com (Northern Ireland) Ltd C/ Tecnología 5-17 Orion Business Campus... - Page 33 PH20 Service | 12 France Netherlands Great Britain VWR International S.A.S. VWR International B.V. VWR International Ltd Le Périgares – Bâtiment B Postbus 8198 Customer Service Centre 201, rue Carnot 1005 AD Amsterdam Hunter Boulevard 94126 Fontenay-sous-Bois cedex Tel.: +31 020 4808 400 Magna Park Tel.: 0 825 02 30 30* (national)
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