Minimate Pro Operator Manual
9
–19
to edit the value. Press the
Right
and
Left Arrow
key to move from each value
field. Press the
Up
or
Down Arrow
keys to change the value.
(3)
To set a
Pressure Trigger
level for the Linear Microphone, or
Pressure
Trigger
, press the
Right Arrow
key to set the
Pressure Trigger
to
On
.
(4)
Set the
Pressure Trigger Level
in mm/s or psi, dependent on the units selected
in the
View/Edit Preferences
menu, by selecting the
Right Arrow
key to edit
the value. Press the
Right
and
Left Arrow
key to move from each value field.
Press the
Up
or
Down Arrow
keys to change the value.
(5)
Press the
Enter
key to
Save
the changes, or the
Cancel
key to return to the
previous menu without saving the changes.
NOTE:
Refer to the
Auxiliary I/O
feature in this section for more information on
alternative ways to trigger the
Minimate Pro
unit.
g. Record Time:
Select the
Record Time
feature if using the
Waveform
or
Waveform Manual
recording
modes. Within the
Record Time
feature, there are three options,
Record Stop Mode
,
Record Time
, and
Auto Window
, as shown below:
The
Record Stop Mode
sets how the unit stops recording after being triggered. You can
choose between a
Fixed Time
setting or an
Auto Record
setting.
Fixed Time
sets the
record time to a specified length. For example, you set the unit to record for two seconds;
once the record time has elapsed, the unit stops recording. In
Auto Record
the unit
continues to record
Event
activity as long as that activity remains above the trigger level.
(Sufficient memory and battery power must be available). Recording stops at a specified
period of time after the
Event
activity falls below the trigger level. The period of time,
called the
Auto Window
.
Remember to set the
Record Time
long enough to record an entire
Event
but not too
long to avoid recording unnecessary data and filling the unit memory. Set a Record Time
for
Waveform
and
Waveform Manual
record modes.
A helpful rule of thumb when setting a
Record Time
for a blast
Event
is to add the
delays between detonating holes or use the longest delay, then add one second for each
one thousand feet (300 m) from the
Event
to the unit to account for the speed of sound.
For example, in the figure below the minimum record time required is 1.1 seconds. To be
on the safe side and ensure you record all of the Event activity, set the
Record Time
to
2.0 seconds. As there is no single method for setting a
Record Time
, use your knowledge
and experience to determine the setting.
Summary of Contents for Minimate Pro Series
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