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Summary of Contents for GHM GREISINGER G 1500 Series
- Page 1 Compact manual G 1500 series pH / Redox measuring device...
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Page 2: Table Of Contents
Table of contents G 1500 series Table of contents About this documentation ............4 Foreword ..................4 Legal notices .................. 4 Further information ................. 4 Safety ..................5 Explanation of safety symbols ............5 Foreseeable misuse ............... 5 Safety instructions ................6 Intended use ................... - Page 3 G 1700 series Table of contents Operation and maintenance ..........19 Operating and maintenance notices..........19 Calibration of the pH measurement ..........20 6.2.1 General Explanation ..............20 6.2.2 Buffer solutions ................21 Automatic pH calibration ............... 21 Manual calibration ................ 23 Display the electrode assessment of active calibration ....
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Page 4: About This Documentation
1 | About this documentation G 1500 series About this documentation Foreword Read this document carefully and familiarise yourself with the operation of the device before you use it. Keep this document ready to hand and in the immediate vicinity of the device so that it is available to the personnel/user for reference at all times in case of doubt. -
Page 5: Safety
G 1500 series 2 | Safety 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 6: Safety Instructions
2 | Safety G 1500 series – The device is not intended to come into direct contact with food. For measure- ment in foods, samples must be taken and discarded after the measurement! – Not suitable for use with requirements on functional safety, e.g. SIL! Safety instructions DANGER Danger of breaking the electrodes! -
Page 7: Qualified Personnel
G 1500 series 3 | The device at a glance Qualified personnel For commissioning, operation and maintenance, the relevant personnel must have adequate knowledge of the measuring process and the significance of the measure- ments. The instructions in this document must be understood, observed and followed. In order to avoid any risks arising from interpretation of the measurements in the concrete application, the user must have additional expertise. -
Page 8: Connections
3 | The device at a glance G 1500 series Connections BNC connection Connection for pH electrode (Un/locking with rotating ring on the cable plug) 2x 4mm banana Connection for temperature sensor or reference electrode (only available at G 1501) CAUTION Ensuring water tightness! The device guarantees protection from spray water, rain or accidental immersion in... -
Page 9: Operating Elements
G 1500 series 3 | The device at a glance Operating elements On / Off button Press briefly Switch on the device Activate / deactivate lighting Long press Switch off the device Reject changes in a menu Up / Down button Display of the min/max value Press briefly Change value of the selected parameter... -
Page 10: Operation
4 | Operation G 1500 series Operation Opening the configuration menu Press the Function key for 2 seconds to open the Configuration menu. (ONF appears in the display. Release the Function key. Parameter Values Meaning SET.T Setting the temperature G 1500 : -5 .. 105 Medium temperature in °C (at °F: 23 .. - Page 11 G 1500 series 4 | Operation UN,T Display unit temperature °( Temperature display in °C °F Temperature display in °F Alarm (only at G 1501) No alarm active Alarm via text insertion, acoustic signal and flashing of the background lighting BEEP Alarm via text insertion and acoustic signal L,TE...
- Page 12 4 | Operation G 1500 series L,TE Backlight 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 No automatic shut off of the backlight IN,T Factory settings Use current configuration...
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Page 13: Adjustment Of The Measuring Input (Only Available At G 1501)
G 1500 series 4 | Operation Adjustment of the measuring input (only available at G 1501) 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 display text T.OF or T.SL when switching on. -
Page 14: Measurement Basics
5 | Measurement Basics G 1500 series 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 15: Ph Electrode
G 1500 series 5 | Measurement Basics 5.1.2 pH electrode Normally, so-called pH single-rod measuring chains are used. They include all neces- sary components that are integrated in an electrode. There are also electrodes with integrated temperature sensors. Design of a pH electrode: Coaxial cable Reference electrode Measuring electrode... -
Page 16: Further Information
5 | Measurement Basics G 1500 series 5.1.3 Further information A pH electrode is a wear part. If the signal is very slow or the required values are no longer observed after careful cleaning and possible regeneration, the electrode must be replaced. -
Page 17: Care And Maintenance
G 1500 series 5 | Measurement Basics 5.1.6 Care and maintenance NOTE The glass tip of the electrode with the sensitive hydrated layer must be kept moist, e.g. with 3 mol/l KCl solution in the storage cap. Accidental drying-out of the electrode can be reversed under certain circumstances after storage for several hours in 3 mol/l KCl, but this cannot be guaranteed. -
Page 18: Redox Measurement (Orp) (Only Available At G 1501)
5 | Measurement Basics G 1500 series Redox measurement (ORP) (only available at G 1501) 5.2.1 Explanation The Redox potential 0RP specifies the extent to which the measured sample has an oxidising or reducing effect relative to the standard hydrogen electrode. This potential is frequently used in swimming pools as a measured variable for the disinfecting effect of a chlorination. -
Page 19: Operation And Maintenance
G 1500 series 6 | Operation and maintenance Operation and maintenance Operating and maintenance notices NOTE The device 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 device is stored at a temperature above 50 °C, or is not used for an extended period of time, the batteries must be removed. -
Page 20: Calibration Of The Ph Measurement
6 | Operation and maintenance G 1500 series Calibration of the pH measurement 6.2.1 General Explanation The following steps describe how to calibrate the device. 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 21: Buffer Solutions
G 1500 series 6 | Operation and maintenance 6.2.2 Buffer solutions At least one buffer solution is required to calibrate the device. With the help of the GPH buffer capsules, appropriate solutions can be prepared as follows: 1. Fill a plastic bottle with approx. 100 ml of distilled water. 2. - Page 22 6 | Operation and maintenance G 1500 series Procedure for the calibration: Press the Function key for 4 seconds to open the Calibration menu. The display shows (AL. Release the Function key. PK 7 appears in the display. Place the electrode in the GPH 7.0 buffer solution. The device determines the correct value automatically.
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Page 23: Manual Calibration
G 1500 series 6 | Operation and maintenance Manual calibration In the configuration menu, it is possible to manually adjust the device by entering the corresponding parameters (SET.T, PK.OF and PK.SL), similar to a device with rotary knobs. You can carry out a 1-point or 2-point calibration. 1-point calibration: Here, only a zero point shift of the measurement takes place. -
Page 24: Display The Electrode Assessment Of Active Calibration
6 | Operation and maintenance G 1500 series The PK.SL parameter appears in the display Place the electrode in the second buffer solution with a value below pH 6 or above pH 8. Wait until the display value is stable. Adjust the value corresponding to the buffer solution (note temperature depend- ence!) with the Up key and Down key. -
Page 25: Battery
G 1500 series 6 | Operation and maintenance Battery 6.6.1 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 adequate for operation of the device. - Page 26 6 | Operation and maintenance G 1500 series NOTE Read the following handling instructions before replacing batteries and follow them step by step. If disregarded, the device could be damaged or the protection from moisture could be diminished. Unscrews the Phillips screws (A)and remove the cover. Carefully replace the two Mignon AA batteries (B).
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Page 27: Error And System Messages
G 1500 series 7 | Error and system messages Error and system messages Display Meaning Possible causes Remedy ---- Sensor cable Cable breakage Connect a suitable meas- defect uring probe Incorrect measuring Sensor or probe probe Stay within allowable defect measurement range Measuring probe or Measurement far... - Page 28 7 | Error and system messages G 1500 series (AL ERR.1 Neutral buffer not Incorrect buffer Use fresh buffer solution allowed solution used Clean electrode, re- Buffer solution is calibrate contaminated Replace electrode Electrode contami- nated or defective (AL ERR.2 Slope is too low Incorrect buffer Use fresh buffer solution...
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Page 29: Technical Data
G 1500 series 8 | Technical data Technical data Measuring range G 1500 G 1501 0.00 .. 14.00 pH 0.00 .. 14.00 pH Redox -1500 .. +1500 mV -1293 .. +1707 mV Temperature -5.0 .. 105.0 °C (23.0 .. 221.0 °F) Accuracy (at nom. - Page 30 8 | Technical data G 1500 series Nominal temperature 25 °C Operating conditions -20 to 50 °C; 0 to 95 %RH (temporarily condensing) Storage temperature -20 to 70 °C Current supply 2 * AA batteries (mignon) Current requirement approx. 0,7 mA, approx. 2,5 mA with backlight Service life >...
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Page 31: Disposal
Service 10.1 Manufacturer If you have any questions, please do not hesitate to contact us: Contact: GHM Messtechnik GmbH GHM GROUP - Greisinger Hans-Sachs-Str. 26 93128 Regenstauf | GERMANY Email: info@greisinger.de | www.greisinger.de WEEE reg. no. DE 93889386 B-H86.0.1X.DK2-3.1 31 / 32... -
Page 32: Accessories
11 | Accessories G 1500 series Accessories Spare parts: GB-AA-2 art. no. 479249 Spare batteries AA (2 pcs.) Electrodes / sensors: GE 114 - BNC art. no. 610460 Universal pH electrode GE 125 - BNC art. no. 600731 Universal pH electrode with integrated Pt1000 temperature sensor GE 135 - BNC art.
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