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Page 64 of 127

Operating Manual

OMGEM5KN – Iss. 5.1

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GEM5000

5) Follow the instructions on the front of the instrument when taking your gas and measurement

reading.

6) At the point in which the operator presses ‘Enter’ to store the gas reading the temperature is

recorded.

Note: Temperature probe readings can be analysed further when downloaded to Gas Analyser Manager

(GAM).

How to identify a borehole using the GPS feature (optional)

An optional GPS feature is available for the GEM5000 gas analyser. It enables the site engineer to automatically

locate borehole IDs using GPS satellite signal from predefined borehole IDs uploaded from Gas Analyser

Manager. The GPS reading data is stored for each measurement reading.

Note: Borehole IDs may be uploaded from GAM with or without location information. If location details are

not uploaded the location longitude and latitude coordinates can be stored when the borehole is located

and downloaded to GAM with the reading measurements.

Screen navigation:

1) Switch on the analyser and wait for the self-test warm-up to complete and the analyser will display

the ‘Main Gas Read Screen’.

2) In order to use the navigation function if configured, you must switch ‘Navigation - On’ on the

analyser. Select the ‘Menu’ key followed by ‘Key 5’ to toggle navigation to on. Select the ‘Menu’ key

to exit and return to the ‘Main Gas Read Screen’.

3) Select the soft-key ‘Next ID’, then select a borehole ID from the list displayed and press the ‘Enter

‘key to continue.

Before entering the GPS Navigation Screen for the first time the following health and safety

message will be displayed.

“Please be aware of the terrain when using this screen. You are responsible for your own safety

whilst walking on-site!”

4) After reading the user warning message, select the soft-key ‘Dismiss’. Use the tracking display to

locate the borehole

Note: There is often a wait time frame of between 30 seconds to two minutes whilst getting a satellite signal.

Be aware that heavy rain, trees overhead etc. will give a bad fix.

Geotech GEM5000 User Manual

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