3.3 Intuitive Measuring Mode Selection
The Garnet is fitted with a high accuracy inclinometer, and two measuring ‘paddles’ enabling it to
measure up to seven track parameters. In order to maintain measurement integrity and improve ease
of use, the Garnet records the most extreme (max or min) value measured in the selected direction,
even if this is not the current value.
In the case of the Gauge paddle, a change in direction (and hence a change in measuring mode) will
only be acknowledged if the paddle movement exceeds 5mm in the opposite direction.
In the case of the Groove paddle, the maximum value will be stored until the paddle movement
exceeds 5mm in the opposite direction if Groove Latch is [Disabled], or if the user manually exits that
measuring mode by pressing the (
) button if Groove Latch is [Enabled]. See ‘
3.4 Measuring Modes
The Garnet uses ‘intuitive measuring mode selection’ to determine which measurement(s) the
operator is attempting to make, based whether the paddles are being moved ‘In’ towards or ‘Out’
away from the track centre. The table below illustrates how the different measuring modes are
selected:-
Groove Paddle Enabled
Groove
Paddle
Gauge
Paddle
Display Output
Description
Out
Out
Gauge
1436.4
X-level
/152.1
m
m
m
m
Gauge
Cross-level including orientation
Out
In
-
--
1436.4
X-level
/152.1
m
m
m
m
Running rail to opposite check rail
Cross-level including orientation
In
Out
Groove
76.3
--
/1400.1
m
m
m
m
Groove width or groove
Check rail to opposite running rail
In
In
Groove
76.4
--
/1372.1
m
m
m
m
Groove width or groove
Back-to-back check rail
Groove Paddle Disabled
In/Out
Out
Gauge
1436.4
X-level
/152.1
m
m
m
m
Gauge
Cross-level including orientation
In/Out
In
Gauge
----
X-level
/152.1
m
m
m
m
Error. Invalid Gauge paddle direction!
Cross-level including orientation
In the case of the Gauge paddle, a change in direction (and hence a change in measuring mode) will
only be acknowledged if the paddle movement exceeds 5mm in the opposite direction.
In the case of the Groove paddle, the maximum value will be stored until the user manually exits that
measuring mode by pressing the (
) button (if Groove Latch is on) or if the paddle movement
exceeds 5mm in the opposite direction (if Groove Latch is off).
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