GREISINGER G 1791 Installation instructions

Compact manual

G 1791

One-hand soil-/compost-thermometer

Table of contents G 1791 
/ 19 B-H86.0.08.DK2-3.0 
Table of contents 
About this documentation......................................................4 
1 Foreword........................................................................................4 
2 Legal notices..................................................................................4 
3 Further information.........................................................................4 
Safety.......................................................................................5 
1 Explanation of safety symbols ........................................................5 
2 Foreseeable misuse .......................................................................5 
3 Safety instructions..........................................................................6 
4 Intended use...................................................................................7 
5 Qualified personnel.........................................................................7 
The device at a glance............................................................8 
1 Display elements............................................................................8 
2 Connections ...................................................................................8 
3 Operating elements........................................................................9 
Operation...............................................................................10 
1 Opening the configuration menu...................................................10 
2 Adjustment of the measuring input................................................12 
Measurement Basics.............................................................13 
1 Measurement in the soil, … ..........................................................13 
2 Possible measuring errors............................................................13 
2.1 Immersion depth...........................................................................13 
2.2 Surface effects and poor heat transfer..........................................13 
2.3 Cooling / evaporation....................................................................13 
2.4 Response time .............................................................................13 
Operation and maintenance.................................................14 
1 Operating and maintenance notices..............................................14 
2 Battery..........................................................................................14 

G 1791 Table of contents

B-H86.0.08.DK2-3.0 3 / 19

6.2.1 Battery indicator............................................................................14

6.2.2 Changing battery..........................................................................14

7 Error and system messages.................................................16

8 Technical data .......................................................................17

9 Disposal.................................................................................18

10 Service ...................................................................................19

10.1 Manufacturer................................................................................19

10.2 Calibration and adjustment service...............................................19

1 | About this documentation G 1791

4 / 19 B-H86.0.08.DK2-3.0

1 About this documentation

1.1 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.

The user must have carefully read and understood the operating manual before

beginning any work.

1.2 Legal notices

The liability and warranty of the manufacturer for damages and consequential

damages are voided with misuse, disregarding this document, disregarding safety

notices, assignment of inadequately qualified technical personnel and arbitrary

modifications of the device.

This document is entrusted to the recipient for personal use only. Any impermissible

transfer, duplication, translation into other languages or excerpts from this operating

manual are prohibited.

The manufacturer assumes no liability for print errors.

1.3 Further information

Software version of the device:

–V1.2 or later

For the exact product name, refer to the type plate on the rear side of the device.

NOTE

For information about the software version, press and hold the ON button to switch on

the device for longer than 5 seconds. The series is shown in the main display and the

software version of the device is shown in the secondary display.

G 1791 2 | Safety

B-H86.0.08.DK2-3.0 5 / 19

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.

NOTE

This symbol indicates processes, which can have a direct influence on operation or

can trigger an unforeseen reaction in case of non-observance.

2.2 Foreseeable misuse

The fault-free function and operational safety of the device can only be guaranteed if

applicable safety precautions and the device-specific safety instructions for this docu-

ment are observed.

If these notices are disregarded, personal injury or death, as well as property damage

can occur.

DANGER

Incorrect area of application!

In order to prevent erratic behaviour of the device, personal injury and property dam-

age, the device must be used exclusively as described under intended use.

–Do not use in safety / Emergency Stop devices!

–The device is not suitable for use in explosion-prone areas!

–The device must not be used for diagnostic or other medical purposes on pa-

tients!

–Not suitable for use with requirements on functional safety, e.g. SIL!

2 | Safety G 1791

6 / 19 B-H86.0.08.DK2-3.0

2.3 Safety instructions

CAUTION

Risk of injury at the temperature sensor!

The insertion probes entail the risk of stab injuries due to the pointed probe design.

–Handle insertion probes with care!

–Fit a protective cap on the measuring probe if probe is not in use!

–Do not put the device down with the sensor tube pointing upwards.

There is a risk of burns when measuring in high (and very low) temperatures. Use

gloves if necessary.

CAUTION

Empty batteries and batteries of inferior quality can leak more easily, which can destroy

the device. Please also observe the instructions in the chapter “Operation and mainte-

nance”.

DANGER

There is an immediate danger to life if live parts come into contact with the temperature

sensor!

Therefore, do not conduct measurements on or in the direct vicinity of live parts or lines.

Never plug the temperature sensor into sockets, etc.

NOTE

This device does not belong in children's hands!

NOTE

Device and sensor are not designed for continuous contact with foods.

G 1791 2 | Safety

B-H86.0.08.DK2-3.0 7 / 19

2.4 Intended use

The G 1700 - series is a water-protected thermometer for precise and temperature

measurements.

The special design of the G 1791 makes it to a convenient insertion thermometer for:

–Soft soils

–compost

–agricultural windrows

–bulk material

2.5 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. The user is solely liable

for damages/danger resulting from misinterpretation due to inadequate expertise.

3 | The device at a glance G 1791

8 / 19 B-H86.0.08.DK2-3.0

3 The device at a glance

LCD Display

Front view

3.1 Display elements

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 temperature or value

for min/max/hold

Auxiliary display

Measurement of the current temperature in

min/max/hold mode with unit

3.2 Connections

Probe

Permanently connected sensor

G 1791 3 | The device at a glance

B-H86.0.08.DK2-3.0 9 / 19

3.3 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

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 button

Press briefly

Freeze measurement (Hold)

Call up next parameter

Long press, 2s

Start menu “configuration”, (ONF appears in the

display

Operating status device is in measured value displunitay

device is in a menu

4 | Operation G 1791

10 / 19 B-H86.0.08.DK2-3.0

4 Operation

4.1 Opening the configuration menu

1. Press the Function key for 2 seconds to open the Configuration menu.

2. (ONF appears in the display. Release the Function key.

Parameter

Values

Meaning

__AL.

Alarm

OFF

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

Alarm via text insertion and flashing of the back-

ground lighting

_AL.LO

Min. alarm limit (only available if AL <> off)

-70.0 .. AL.X,

a min. alert is triggered if the value falls below this

value. (at °F: -94.0 .. AL.Hi)

_AL.XI

Max. alarm limit (only available if AL <> off)

AL.LO .. 250.0

If the value is exceeded, a max. alarm is triggered.

(at °F: AL.Hi .. 482.0)

POFF

Shut-off time

OFF

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

Table of contents

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