www.gkdtechnologies.com
M1000002 V1.2 - 11/2021
15
9 CALIBRATION (CONT.)
9.2
Stage 2 - Zero Pressure Sensor
With No Load and the machine set to the minimum radius combination of the boom, dipper
or any extending boom fitted, the hydraulic ram pressure will be at the minimum value
supporting the weight of the boom etc. but no load.
Ensure the magnet is fitted on the top of the display as shown on page 14. The Display will
be in Indicator mode. (Probably just bottom green “Power On” indicator lit.)
Press and hold the RED test button for more than 3 seconds to enter the Calibrate mode. All
the LEDs come on to show it is now in Calibrate mode. Release the Red button and the top !
Red and bottom green Power On LEDs are lit, as well as the 50% Green LED.
!! DON’T REMOVE THE MAGNET !!
REMOVING IT, OR NO ACTIVITY FOR 100 SECS WILL EXIT THE CALIBRATE MODE.
Press the Red button twice. The 100% LED lights to show “Zero Pressure Sensor” mode.
Press & hold the Red button for over 2 secs to make the Series 1-L Acquire and Store the
Pressure Sensor reading representing the No Load pressure.
Now release the button. All the LEDs should come on momentarily, then all but the Green
Power On LED go off before all the LEDs come on momentarily again to confirm the
Zero Angle has been acquired and stored. The unit will then go from Calibration mode to
Indicator mode with just the Green Power LED lit.
9.3
Stage 3 - Data Logger On/Off Control
Ensure the magnet is fitted on the top of the display as shown on page 14. The Display will
be in Indicator mode. (Probably just bottom green “Power On” indicator lit.)
Press and hold the RED test button for more than 3 seconds to enter the Calibrate mode. All
the LEDs come on to show it is now in Calibrate mode. Release the Red button and the top !
Red and bottom green Power On LEDs are lit, as well as the 50% Green LED.
!! DON’T REMOVE THE MAGNET !!
REMOVING IT, OR NO ACTIVITY FOR 100 SECS WILL EXIT THE CALIBRATE MODE.
Press the Red button three times. The Red 100% & Yellow 75% LEDs will light to show the
unit is in Data logger Control Mode (If both 100% & 75% LEDs don’t light the unit may not be
equipped with the Data logger control function, and may need to be upgraded).
If the Red “!” LED is lit as well as the 100% & 75% LEDs the Data logger is enabled. If the Red
“!” LED is NOT lit but the 100% & 75% LEDs are lit the Data logger is disabled (If you don’t
want to change the Data logger status, remove the magnet at this point).
With the magnet in place, to swap the Data logger function from On to Off, or Off to
On, press and hold the Red button for more than 2 seconds. All the LEDs then come on
momentarily, All but the Green LED then go Off, All the LEDs then come On momentarily to
show the Data logger function has changed. The unit will then go from Calibration mode to
Indicator mode with just the Green Power LED lit.