Related Manuals for GHM GREISINGER
Summary of Contents for GHM GREISINGER
- Page 1 Operating manual G 1501 pH / Redox measuring device with temperature measurement...
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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 7.2.4 Adjustment of the measuring input ....................27 7.2.5 Configuring parameters of the adjustment menu ................. 28 Error and system messages ........................30 Disposal ................................. 32 Technical data .............................. 33 Spare parts and accessories ........................35 Service ................................37 12.1 Manufacturer ..............................
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Page 4: About This Documentation
1 | About this documentation G 1501 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 1501 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 1501 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 1501 Safety | 2 Safety instructions DANGER Danger of breaking the electrodes! All electrodes contain glass parts that can cause injuries when broken. There is an el- evated risk of injury in connection with measurements in foods. – Inspect the electrode before and after the measurement! –... -
Page 8: Description
3 | Description G 1501 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 1501 The product at a glance | 4 The product at a glance The G 1501 Top view LCD Disply 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 1501 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 1501 Measurement Basics | 5 Measurement Basics 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. A pH value of 7 is neutral. The pH measurement is very precise, but also sensitive. -
Page 12: Ph Electrode
5 | Measurement Basics G 1501 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 1501 Measurement Basics | 5 – Solutions that contain high concentrations of silver ions 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. -
Page 14: Redox Measurement
5 | Measurement Basics G 1501 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: Operation And Maintenance
G 1501 Operation and maintenance | 6 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 16: Changing Battery
6 | Operation and maintenance G 1501 6.2.2 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... - Page 17 G 1501 Operation and maintenance | 6 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.
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Page 18: Calibration And Adjustment
6 | Operation and maintenance G 1501 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 19 G 1501 Operation and maintenance | 6 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 20 6 | Operation and maintenance G 1501 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 and, if applicable, a temperature sensor are inserted in the product.
- Page 21 G 1501 Operation and maintenance | 6 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 22 6 | Operation and maintenance G 1501 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.
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Page 23: Calibration And Adjustment Service
G 1501 Operation and maintenance | 6 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 24: Operation
7 | Operation G 1501 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 [ 24]. Prerequisite – Sufficiently full batteries are inserted in the product. –... -
Page 25: Configuring Parameters Of The Configuration Menu
G 1501 Operation | 7 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 26 7 | Operation G 1501 Setting the zero point PK.OF Current meas- Setting of the zero point for calibration of the pH urement measurement. If a calibration cannot be carried out, continue with the function key Setting the gradient PK.SL Current meas- Setting of the gradient for calibration of the pH urement...
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Page 27: Adjustment Of The Measuring Input
G 1501 Operation | 7 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 Backlight L,TE Backlight deactivated 15 30 60 120 240 Automatic shut-off of the backlight after a selected time in seconds, during which no buttons have been pressed... -
Page 28: Configuring Parameters Of The Adjustment Menu
7 | Operation G 1501 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 29 G 1501 Operation | 7 Displayed value = measured value – T.OF Gradient correction °C: Display = (measured value – T.OF) * (1 + T.SL / 100) Gradient correction °F: Display = (measured value – 32 °F – T.OF) * (1 + T.SL / 100) + 32 °F Example calculation –...
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Page 30: Error And System Messages
8 | Error and system messages G 1501 Error and system messages Display Meaning Possible causes Remedy SENS ERRO Sensor cable defect Cable breakage Send in for repair Sensor or probe Defective sensor or Send in for repair defect probe Measuring range Measurement out- exceeded or under-... - Page 31 G 1501 Error and system messages | 8 ERR.1 Measuring range Measurement too Stay within allowable meas- exceeded high urement range Incorrect electrode Check electrode connected Send in for repair Electrode or product defect ERR.2 Measuring range is Measurement too Stay within allowable meas- undercut urement range...
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Page 32: 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. 32 / 37... -
Page 33: Technical Data
G 1501 Technical data | 10 Technical data Measuring range Redox Temperature 0.00 .. 14.00 pH -1500 .. +1500 mV -5 .. 105 °C 1293 .. +1707 mV 23 .. 221 °F Accuracy (at nominal tempera- ± 0.02 pH ± 1 digit ±... - Page 34 10 | Technical data G 1501 Directives and standards The devices conform to the following Directives of the Council for the harmoni- sation of legal regulations of the Member States: 2014/30/EU EMC Directive 2011/65/EU RoHS Applied harmonised standards: EN 61326-1:2013 Emission limits: Class B Immunity according to Table 2 Additional errors: <...
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Page 35: Spare Parts And Accessories
G 1501 Spare parts and accessories | 11 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 36 Protective device sleeve A complete list of all accessories- and spare parts is available in our product catalogue or on our home page. We can also provide further information by phone. Contact Internet:www.greisinger.de Tel: +49 94029383-52 36 / 37 B-H86.0.12.DB2-2.1...
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Page 37: 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. B-H86.0.12.DB2-2.1 37 / 37...
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