23
TIME mode number Special operating mode
0
B4 mode
1
First level mode
2
Second level mode
3
Point-in-time mode
b. SETTING THE TIME VALUE -
TIME [ 0 (VALUE) ENTER]
A TIME VALUE may be entered which, when used with TIME mode described below,
can show the peak load for various portions of the stroke. The timer starts at the time the
meter is triggered (via THRESHOLD or PROBE INPUT) and continues until the number
of seconds equal to the TIME VALUE has elapsed.
To display the TIME VALUE press the "TIME" key once. Channel 0 will show a number
0 to 99.99. This is the TIME VALUE in seconds. To change the value, press "0" and
enter the new value. Press "ENTER" to finish the entry process. The maximum delay
which can be entered is 99.99 seconds.
c. THE POINT-IN-TIME-MODE
The N269 meter can be set-up to display the load at a particular point in the stroke. This
can be accomplished in a variety of ways. The most common way utilizes the time value
as a delay from the point at which the load signal crosses the threshold at the start of
loading. Thus when the amount of time since the threshold crossing elapses, the meter
reads the load value and stores this number in the memory.
Another way to trigger this point-in-time reading is very similar to the above method. If a
probe is used in place of the threshold, the point-in-time becomes the time at which the
time value occurs having started its timing when the probe indicated the start of the load
signal.
The last way to gather this point-in-time data is by using a probe dedicated exclusively to
this point-in-time function. When the TIME VALUE is set to zero and the meter is in
the TIME mode this probe is enabled. Then whenever the probe turns on the meter
stores the load seen at this time in the memory.
To display the Point-In-Time load the meter must be in TIME mode number 3. Press the keys
RESET TIME in that order. The display will show the TIME VALUE in channel 0 (X.XXX) and
a single digit number to the left of this value. The single digit number is a number from 0 to 3. It
is this number which determines the time mode number. Press the DEC. PT. key to select this
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