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NOTE:
When simultaneously recording voltage and VOD data the triggering of the MicroTrap™, when set on INTernal triggering, is
controlled by the VOD channel. Details on the procedure for recording VOD data are provided in the
7.
Look for the
OUT OF RANGE
of the sensors is out of the voltage range set by the
the signal wires from the
sensor is identified as the fault. The User should test the cable connections to the sensor, as well as the power supply and/or signal
conditioner. A voltmeter should be used to verify the baseline voltage output of the sensor. If the
illuminated the User can proceed to Step 8.
8.
Press the
START
button. The
trigger signal to start collecting voltage data. Personnel may now vacate the
9.
When the
MicroTraps™
level set in
Chapter
1.4), the
and remain on during the collection of data (this time depends on the recording rate and number of tests programmed into the
MicroTrap™). During this time, both the
NOTE:
When the internal triggering criteria are met, the
unit. This pulse is 6 seconds in duration, and has a rise time of 2 microseconds. Some Users may wish to trigger other
instrumentation from the
10. Once data collection ends, the
memory. During this short time, the
OFF
during this time.
11. When the
MicroTrap™
finishes storing the data, the
slowly. The
MicroTrap™
If the MicroTrap™ has triggered prematurely, or the data that you have collected is not of use to you, then you may
erase only the last test by performing the following sequence:
a. Do not turn OFF the MicroTrap™ after the test, the STATUS light and TRIG'D lights should be flashing.
b. To erase the data from the last test; simultaneously press the TOTAL TESTS and REMAINING TESTS buttons
and hold them until this procedure is complete. The LED display will show ct.
c. After about 2 seconds, the ct will begin blinking. After another 2 seconds, the ct will disappear. Release the
buttons. The data from the last test has been deleted.
d. Turn OFF the MicroTrap™, wait several seconds and then turn the MicroTrap™ ON again. Pressing the TOTAL
TESTS button and then the and REMAINING TESTS button will confirm that the remaining tests have been
increased by 1 and that the last test in the MicroTrap™ memory has been deleted.
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warning light indicators ( and ). If there is a warning light, then the voltage being produced by one
MREL Data Acquisition Suite
MicroTrap™
one at a time, until the warning light goes off. When the warning light goes off, the unplugged
START
light will illuminate steadily. The
internal triggering criteria is met (i.e. the voltage signal on one of the channels has crossed the trigger
MicroTrap™
will begin recording voltage information. Upon triggering, the
START
and
STATUS
MicroTraps™ TRIG OUT
TRIG'D
and
START
lights flash rapidly and the
STATUS
light is illuminated to indicate that writing is taking place. Do not switch the
START
has now returned to
Stand-by
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in
MicroTrap™
then starts monitoring the blast, waiting for the
MicroTrap™
lights will also be illuminated.
MicroTrap™
will send a 10 VDC signal to the
port.
MicroTrap™
light will go dark and the
mode.
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Chapter 4.
Chapter
1.4. If this is the case, then disconnect
OUT OF RANGE
location if necessary.
TRIG'D
TRIG OUT
port on the back of the
begins storing data into its non-volatile
STATUS
and
TRIG'D
lights will begin to flash
4 5
lights are not
light will illuminate
MicroTrap™
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