GHM Greisinger G 1781 Compact Manual

High precision reference thermometer with micro-probe

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Compact manual

G 1781

High precision reference thermometer

with micro-probe

Table of Contents

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Summary of Contents for GHM Greisinger G 1781

Page 1 Compact manual G 1781 High precision reference thermometer with micro-probe...
Page 2: Table Of Contents
Table of contents G 1781 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 1781 Table of contents 6.2.2 Changing battery ................13 Error and system messages ..........15 Technical data ............... 16 Disposal ................. 17 Service ................... 18 10.1 Manufacturer ................18 10.2 Calibration and adjustment service ..........18 B-H86.0.07.DK2-3.0 3 / 18...
Page 4: About This Documentation
1 | About this documentation G 1781 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 1781 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. 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 6: Safety Instructions
The sensor handle, connecting cable and device housing are not designed for continu- ous contact with foods. Intended use The G 1781 is a high-precision reference thermometer for checking outer products, where the highest accuracy is required. The miniaturized probe is designed to be inserted in appropriate reference bores and to measure on site quickly and without distortion.
Page 7: The Device At A Glance
Auxiliary display min/max/hold mode with unit Connections Probe Permanently connected sensor NOTE The device series is a water-protected thermometer. However the temperature sensor of the G 1781 is not designed for permanent com- plete immersion in liquids B-H86.0.07.DK2-3.0 7 / 18...
Page 8: Operating Elements
3 | The device at a glance G 1781 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...
Page 9: Operation
G 1781 4 | Operation 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 Alarm No alarm active Alarm via text insertion, acoustic signal and flashing...
Page 10 4 | Operation G 1781 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 UN,T Display unit °(...
Page 11: Adjustment Of The Measuring Input
G 1781 4 | Operation Adjustment of the measuring input 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 12: Measurement Basics
5 | Measurement Basics G 1781 Measurement Basics Possible measuring errors 5.1.1 Immersion depth Gas: Immerse as far as possible into the gas to be measured so that the measur- ing sensor is subjected to a heavy flow. 5.1.2 Surface effects and poor heat transfer Special measuring sensors are required for this purpose.
Page 13: Operation And Maintenance
G 1781 6 | Operation and maintenance Operation and maintenance Operating and maintenance notices NOTE The device and temperature probe 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 14 6 | Operation and maintenance G 1781 CAUTION Damage! If the batteries have different charge levels, leaks and thus damage to the device can occur. – Only use high-quality and suitable alkaline batteries! – Do not use different types of batteries! –...
Page 15: Error And System Messages
G 1781 7 | Error and system messages Error and system messages Display Meaning Possible causes Remedy ---- Measurement far Measurement Stay within allowable outside of the outside of the measurement range measuring range measuring range Probe or device Send in for repair...
Page 16: Technical Data
8 | Technical data G 1781 Technical data G 1781 Measuring range 0.00 .. +80.00 °C (32.00 .. +176.00 °F) Accuracy 37 °C: ± 0.05 K ± 1 digit 0 .. +80 °C: ± 0.1 K ± 1 digit Probe...
Page 17: Disposal
G 1781 9 | Disposal Storage temperature -20 to 70 °C Current supply 2 * AA batteries (mignon) Current requirement approx. 0,7 mA, approx. 2,5 mA with backlight battery life Service life > 3000 hours with alkaline batteries (without backlighting)
Page 18: Service
10 | Service G 1781 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 10.2...