Section 3: Operating Information - Delta RetroSign GRX-1 User Manual

SECTION 3: Operating information

Getting started
Turn the RetroSign GRX on by pressing the red power button underneath the instrument. After some
time the system has booted and the instrument is ready for use.
The RetroSign GRX automatically switches to stand-by mode if the instrument has not been used for
a specific amount of time (see 'Settings' in this section). From stand-by mode the instrument is ready
within 1-2 seconds.
Calibrate the instrument if necessary (see 'Calibration' later in this section). To ensure high quality of
data DELTA recommends calibrating the instrument minimum once a day, typically in the morning
before commencing the measurements.
The instrument can be operated between 0 o C to +60 o C / +32 o F to 140 o F.
Switching the instrument on/off and stand-by
Turn on: press the red power button.
Stand-by: press the power button shortly to switch off RetroSign GRX and set it in stand-by mode.
The instrument can easily be switched on again by pressing the power button again.
Switching off: to switch off the instrument completely press and hold the power button for a couple of
seconds until 'Power off' is written on the touch screen. Then tap the screen to turn off the instrument.
Be aware: The battery is drained off power if the instrument is not being switched off after user.
Safety precautions. In case of any severe error condition remove the battery immediately.
Icons
The icons in the status bar at the top of the screen give information about the instrument status and
operational mode:
Main menu
The various instrument actions can be accessed via the main menu.
Press at the top left corner of the GRX screen to access the main menu. You can also access
the main menu by swiping the screen from the left side.
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RetroSign GRX User Manual / December 2017 DELTA