GHM GREISINGER G 1500 Operating Manual
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GHM GREISINGER G 1500 Operating Manual

Ph measuring device
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Operating manual
G 1500
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pH measuring device

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Summary of Contents for GHM GREISINGER G 1500

  • Page 1 Operating manual G 1500 pH measuring device...

  • Page 2: Table Of Contents

    Table of contents Table of contents About this documentation .......................... 4 Foreword ................................4 Purpose of the document ..........................4 Legal notices ..............................4 Correctness of content ........................... 4 Layout of this document ..........................4 Further information ............................5 Safety ................................6 Explanation of safety symbols ........................
  • Page 3 Table of contents 7.2.3 Configuring parameters of the configuration menu ..............26 7.2.4 Adjustment of the measuring input ....................28 Error and system messages ........................29 Disposal ................................. 30 Technical data .............................. 31 Spare parts and accessories ........................32 Service ................................34 12.1 Manufacturer ..............................

  • Page 4: About This Documentation

    1 | About this documentation G 1500 About this documentation Foreword Read this document carefully and familiarise yourself with the operation of the product before you use it. Keep this document ready to hand and in the immediate vicinity of the product so that it is available to the personnel/user for reference at all times in case of doubt.

  • Page 5: Further Information

    G 1500 About this documentation | 1 Prerequisite All mandatory prerequisites are then listed for each step. Instruction Tasks to be carried out by the personnel / user are represented as numbered instruc- tions. Adhere to the sequence of the specified instructions. Representation Shows an illustrative instruction or a configuration of the product.

  • Page 6: Safety

    2 | Safety G 1500 Safety 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 7: Safety Instructions

    G 1500 Safety | 2 Safety instructions DANGER Danger of breaking the electrodes! All electrodes contain glass parts that can cause injuries when broken. There is an elevated risk of injury in connection with measurements in foods. – Inspect the electrode before and after the measurement! –...

  • Page 8: Description

    3 | Description G 1500 Description 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 9: The Product At A Glance

    G 1500 The product at a glance | 4 The product at a glance The G 1500 Top view LCD Display Front view Display elements Display Battery indicator Evaluation of the battery status Unit display Display of units or type of mode, min/max/hold Main display Measurement of the current pH value or value for min/max/hold...

  • Page 10: Connections

    4 | The product at a glance G 1500 Up / Down button Press briefly Display of the min/max value Change value of the selected parameter Long press Reset the min/max value of the current measure- ment Both simultaneously Rotate display, overhead display Function key Press briefly Freeze measurement (Hold)

  • Page 11: Measurement Basics

    G 1500 Measurement Basics | 5 Measurement Basics NOTE To start the measurement, remove the protection cap from the electrode and rinse the shaft and the membrane with distilled water. pH measurement 5.1.1 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.

  • Page 12: Ph Electrode

    5 | Measurement Basics G 1500 5.1.2 pH electrode NOTE Normally, so-called pH single-rod measuring chains are used. They include all neces- sary components that are integrated in an electrode. 5.1.3 Design 1. Coaxial cable 2. Reference electrode 3. Measuring electrode 4.

  • Page 13: Choosing A Ph Electrode

    G 1500 Measurement Basics | 5 Substances that accumulate on the glass membrane or the diaphragm affect the measurement and must be removed regularly. This can be achieved for example with automatic cleaning systems. 5.1.5 Choosing a pH electrode The GE 114 WD or GE 100 can be used for most applications. However, some areas of application require special electrodes.
  • Page 14 5 | Measurement Basics G 1500 GRL 100 pepsin cleaning solution into which the electrode is immersed for 5 minutes before being rinsed off with clean water. NOTE Crystallisation of the 3 mol/l KCL solution is unavoidable. Crystallised potassium chlo- ride on the protective cap and shaft can easily be removed with a fingernail or cloth and is therefore not a defect or grounds for complaint.

  • Page 15: Redox Measurement (Orp)

    G 1500 Measurement Basics | 5 Redox measurement (ORP) 5.2.1 Explanation The Redox potential specifies the extent to which the measured sample has an oxidis- ing or reducing effect relative to the standard hydrogen electrode. This potential is frequently used in swimming pools as a measured variable for the dis- infecting effect of a chlorination.

  • Page 16: Operation And Maintenance

    6.3 | Calibration and adjustment G 1500 Operation and maintenance 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. 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.

  • Page 17: Battery

    G 1500 Calibration and adjustment | 6.3 Battery 6.2.1 Battery indicator If the empty frame in the battery display blinks, the batteries are depleted and must be replaced. However, the device will still operate for a certain length of time. If the BAT display text appears in the main display, the battery voltage is no longer ade- quate for operation of the product.
  • Page 18 6.3 | Calibration and adjustment G 1500 Instruction 1. Unscrews the Phillips screws (A)and remove the cover. 2. Carefully replace the two Mignon AA batteries (B). Ensure that the polarity is correct! It must be possible to insert the batteries in the correct position without using force.

  • Page 19: Calibration And Adjustment

    G 1500 Calibration and adjustment | 6.3 Calibration and adjustment 6.3.1.1 Explanation The following steps describe how to calibrate the product. To achieve a precise measurement, observe the following points. NOTE If possible, the calibration range should overlap the measuring range. To achieve this, it is recommended to use buffer solutions for measurements as follows: –...
  • Page 20 6.3 | Calibration and adjustment G 1500 6.3.1.2 Buffer solutions Description At least one buffer solution is required to calibrate the product. In the process, you have the option of using a ready-to-use PHL buffer solution or mixing the solution yourself with GPH buffer capsules - refer to the instructions.
  • Page 21 G 1500 Calibration and adjustment | 6.3 6.3.1.3 Automatic pH calibration Description The following steps describe how to calibrate the product automatically. Prerequisite – The product is switched on. – The pH electrode is inserted in the product. – Ready-to-use GPH 7.0 buffer solution. –...
  • Page 22 6.3 | Calibration and adjustment G 1500 6.3.1.4 Manual 1-point calibration Description The following steps describe how to perform a 1-point pH calibration. NOTE A 1-point calibration is only advantageous if measurement takes place in a narrow range around the calibration point. A reliable electrode evaluation is not possible in this case.
  • Page 23 G 1500 Calibration and adjustment | 6.3 8. Adjust the value corresponding to the buffer solution with the Up button and Down button and confirm the entry by pressing the Function key. 9. The PK.SL parameter appears in the display. 10.

  • Page 24: Calibration And Adjustment Service

    6.3 | Calibration and adjustment G 1500 Calibration and adjustment service 6.4.1 Certificates The certificates are categorised as ISO calibration certificates and DAkkS calibration certificates. The purpose of the calibration is to verify the precision of the measuring device by comparing it with a traceable reference. NOTE The ISO standard 9001 is applied for the iso-calibration certificates.

  • Page 25: Operation

    G 1500 Operation | 7 Operation Commissioning 7.1.1 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 [ 25]. Prerequisite – Sufficiently full batteries are inserted in the product. –...

  • Page 26: Configuring Parameters Of The Configuration Menu

    7 | Operation G 1500 2. (ONF appears in the display. Release the Function key. 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 or the Down button.
  • Page 27 G 1500 Operation | 7 Setting the zero point PK.OF Current measure- Setting of the zero point for calibration of the pH ment measurement. If a calibration cannot be carried out, continue with the function key Setting the gradient PK.SL Current measure- Setting of the gradient for calibration of the pH ment...

  • Page 28: Adjustment Of The Measuring Input

    7 | Operation G 1500 7.2.4 Adjustment of the measuring input Description The temperature input can be adjusted with the zero point correction and the gradient correction. If an adjustment is made, you change the pre-adjusted factory settings. This is signalled with the T.OF or T.SL when the product is switched on. The standard settings of the zero point value and the gradient value is 0.00.

  • Page 29: Error And System Messages

    G 1500 Disposal | 9 Error and system messages Display Meaning Possible causes Remedy SENS ERRO Sensor cable defect Cable breakage Send in for repair Sensor or probe de- Defective sensor or Send in for repair fect probe Measuring range ex- Measurement out- ceeded or undercut side of the measur-...

  • Page 30: Disposal

    Please dispose of empty batteries at the collection points intended for this purpose. NOTE Fill in the return form available from the information base online at www.ghm-group.de and sent it in with the product. 30 / 34...

  • Page 31: Technical Data

    G 1500 Technical data | 10 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 32: Spare Parts And Accessories

    11 | Spare parts and accessories G 1500 Spare parts and accessories A selection of spare parts and accessories for this product is listed below. Article Number Name Description 610049 Mignon battery Mignon AA spare battery 603523 GAK 1400 Working and calibration set 600704 GE 100 Universal pH electrode with BNC connection...
  • Page 33 G 1500 Spare parts and accessories | 11 601422 GRL 100 Pepsin cleaning solution, 100 ml 602914 GWA1Z Threaded adapter PG13.5 to G1 602477 KCL 3 M 3 mol KCL electrolyte for refilling, 100 ml 603205 PG 13.5 Plug-in thread adapter for pressureless insertion of all electrodes 601373 PHL 10...

  • Page 34: Service

    GHM GROUP - Greisinger Hans-Sachs-Str.26 Service Centre 93128 Regenstauf | GERMANY Tel: +49 94029383-39 Fax: +49 94029383-33 service@greisinger.de NOTE Fill in the return form available from the information base online at www.ghm-group.de and sent it in with the product. 34 / 34 B-H86.0.11.DB2-2.1__G1500...

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