23
FIELD CALIBRATION
Immediately following the GT Series screen display
(Fig. 2.3) and while the instrument identification screen
(Fig. 2.4) is displayed,
Press the following buttons in sequence:
LH (INVERT) button
RH (PUMP) button
LH (INVERT) button
RH (PUMP) button
The instrument then begins its warm-up routine, which
lasts approximately 30 seconds. During warm-up, a
countdown timer appears in the top (RH) corner of the
display.
(Refer to Chapter 1 for complete warm-up sequence).
If the correct button sequence is accepted, the countdown
timer alternates with M (menu) symbol.
The instrument now proceeds through the normal start
up sequence, ending with a check of all sensors and
displaying a spanner symbol if a sensor is faulty. If a
sensor is faulty, the orange LED will be active and an
audible beep will be heard.
The instrument displays the configuration & field
calibration menu screen. The alphanumeric screen now
acts as a prompt to help you through the calibration
process.
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