GREISINGER G 1420 Operating Manual
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GREISINGER G 1420 Operating Manual

Handheld conductivity measuring device
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Operating manual
G 1420
EN
Handheld conductivity measuring
device

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Summary of Contents for GREISINGER G 1420

  • Page 1 Operating manual G 1420 Handheld conductivity measuring device...

  • Page 2: Table Of Contents

    Qualified personnel.......................... 8 Description ............................ 9 Scope of delivery .......................... 9 Functional description...........................  9 The product at a glance ........................ 10 The G 1420............................ 10 Display elements .......................... 10 Operating elements .......................... 10 Bases for measurement ........................ 12 Conductivity principles ........................ 12 Conductivity measurement .........................
  • Page 3 Table of contents 7.2.5 Configuring parameters of the adjustment menu................ 21 Error and system messages...................... 24 Disposal.............................  25 Technical data...........................  26 Spare parts and accessories ...................... 27 Service ...............................  28 12.1 Manufacturer............................ 28 12.2 Repairs processing .......................... 28 12.3 Sales offices ............................ 28 12.4 Sales subsidiaries..........................

  • Page 4: About This Documentation

    1 | About this documentation G 1420 1 About this documentation 1.1 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 1420 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.

  • Page 6: Safety

    2 | Safety G 1420 2 Safety 2.1 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. CAUTION This symbol warns of potential dangers or harmful situations which can cause damage to the device or to the environment in case of non-observance.

  • Page 7: Safety Instructions

    G 1420 Safety | 2 CAUTION Break-out In order to prevent the mount or product itself from breaking out, stress must be avoided. – Do not hang anything on it! – Do not place anything on it! 2.3 Safety instructions This product has been designed and tested according to the safety requirements for electronic measuring devices.

  • Page 8: Intended Use

    2 | Safety G 1420 CAUTION Connection error! A defect can occur if the product is installed without consideration of the thread or con- nection type. – The connection flange/thread must be correct! – Ensure that the mating plug has the correct design! –...

  • Page 9: Description

    G 1420 Description | 3 3 Description 3.1 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 10: The Product At A Glance

    4 | The product at a glance G 1420 4 The product at a glance 4.1 The G 1420 LCD Display G1420 G1420 4.2 Display elements Display Battery indicator Evaluation of the battery status Unit display Display of units, if applicable, with unstable symbol...
  • Page 11 G 1420 The product at a glance | 4 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...

  • Page 12: Bases For Measurement

    5 | Bases for measurement G 1420 5 Bases for measurement 5.1 Conductivity principles Conductivity γ Conductivity describes the capability of a material to conduct electrical current. It is also the inverse of specific resistance. The conductance is the inverse of the meas- ured resistance R.

  • Page 13: Calibration / Adjustment Of The Measuring Cell

    G 1420 Bases for measurement | 5 2-pole measuring cell 4-pole measuring cell 2-pole stainless steel measuring cell for low conductivities <100µS, e.g. pure and purest water, boiler water, osmosis and filter technology 5.4.2 Calibration / adjustment of the measuring cell In harsh applications and due to ageing processes, the cell constant of measuring cells changes.
  • Page 14 5 | Bases for measurement G 1420 Temperature coefficients of 2.0 %/K are most common. Formula = LF / ((1 + TK / 100%) * (TX – T Tref A temperature coefficient can be determined, for example, with measurement of a solution at 2 temperatures, T1 and T2, with temperature compensation switched off.

  • Page 15: Operation And Maintenance

    G 1420 Operation and maintenance | 6 6 Operation and maintenance 6.1 Operating and maintenance notices NOTE The product and conductivity measuring cell must be handled with care and used in accordance with the technical data. Do not throw or strike.

  • Page 16: Calibration And Adjustment Service

    6 | Operation and maintenance G 1420 NOTE Unnecessary screwing places the water-tightness of the product, among other things, at risk and should be avoided. NOTE Read the following handling instructions before replacing batteries and follow them step by step. If disregarded, the product could be damaged or the protection from moisture could be diminished.
  • Page 17 G 1420 Operation and maintenance | 6 laboratories which have demonstrated their expertise in accordance with DIN EN ISO/ IEC 17025. The DAkkS calibration includes any necessary adjustment with the pur- pose of minimising a deviation of the measuring device.

  • Page 18: Operation

    7 | Operation G 1420 7 Operation 7.1 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 [} p. 18]. Prerequisite – Sufficiently full batteries are inserted in the product.

  • Page 19: Configuring Parameters Of The Configuration Menu

    G 1420 Operation | 7 4. When you have selected the desired parameter, change the parameter to the de- sired value with the Up button and the Down button. 5. The changes are saved after running through the entire Configuration menu. STOR appears in the display.
  • Page 20 7 | Operation G 1420 Compensation coefficient TL,N 0.300 .. 3.000 Temperature compensation coefficient in %/K Reference temperature for temperature compensation TREF Reference temperature 25 °C or 77 °F 25 °( Reference temperature 20 °C or 68 °F 20 °(...

  • Page 21: Adjustment Of The Measuring Input

    G 1420 Operation | 7 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, T.SL or S(L display text when the product is switched on.
  • Page 22 7 | Operation G 1420 Zero point correction T.OF 0.00 No zero point correction -5.00 .. 5.00 Zero point correction in °C. and/or at °F -9.00 .. 9.00 Gradient correction of the temperature T.SL No gradient correction 0.00 Gradient correction in % -5.00 ..
  • Page 23 G 1420 Operation | 7 NOTE The most precise results can be achieved when the control solution temperature is ad- justed to 25 °C. With different temperatures, the table value of the corresponding tem- perature must be used as a setpoint.

  • Page 24: Error And System Messages

    8 | Error and system messages G 1420 8 Error and system messages Display Meaning Possible causes Remedy Range switching or Measuring cell de- Wait for the transient effect ---- measured value un- fect of the controller stable Contamination or air...

  • Page 25: Disposal

    G 1420 Disposal | 9 9 Disposal Separation by material and recycling of device components and packaging must take place at the time of disposal. The valid regional statutory regulations and directives applicable at the time must be observed. NOTE The device must not be disposed of with household waste.

  • Page 26: Technical Data

    10 | Technical data G 1420 10 Technical data Measuring range Conductivity 0.000 .. 2.000 µS/cm 0.00 .. 20.00 µS/cm 0.0 .. 100.0 S/cm Specific resistance 10.0 .. 200.0 kΩ/cm 0.010 .. 2.000 MΩ/cm 0.01 .. 20.00 MΩ/cm Salinity Temperature -5.0 ..

  • Page 27: Spare Parts And Accessories

    G 1420 Spare parts and accessories | 11 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 603499 GWZ-01 Flow-through vessel (for measuring cells with Ø 12 mm and Ø...

  • Page 28: Service

    12 Service 12.1 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 12.2 Repairs processing Defective products are repaired professionally and quickly in our service centre.

  • Page 29: Sales Subsidiaries

    Phone +33 4 72 37 45 30 Phone +91 22 40236235 info@ghm.dk | www.ghm.dk a.jouanilou@ghm-group.fr info@ghmgroup.in | www.ghmgroup.in Italy for Greisinger & Delta OHM Italy for Honsberg, Martens, Val.co Netherlands GHM GROUP – Delta OHM GHM GROUP – Val.co GHM Meettechniek BV...

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