GPI GPR-R220L, Instructions For Use Manual

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5) Sloping Leveling
a) Set up the instrument to work horizontally as shown in stages to c)on the previous
page
b) Press the
“
CAL
”
button to get the
“
X
”
value flashing on the screen
。
c) Use the + and-buttons to get the required gradient in the “X” direction ( the X direction
is Parallel to the screen/digital Panel)
d) Press the “X/Y” button to get the “Y” figure flashing.
e) Use the + and-buttons to get the required gradient in the “Y” direction (the Y direction
is at right angles to the screen/digital Pane1)
f) Press the “X/Y” button again so that neither the X or Y letters are flashing.
g) After a few seconds the instrument should start counting up to the preset values. Once
the values are reached the laser will start to rotate again.
h) If the laser is disturbed by an impact or disturbance an audible alarm will sound to
indicate the laser may have moved. The Instrument should be cheeked to see if it has
shifted position. If the instrument remains in the same position push the “X/Y” button