DataTrap II™ Operations Manual - Edition 5.4
52
The power and data cables for each channel must now be set up.
Do the following for
Channel 1
:
1. Connect the
Channel Extension Cable
from the
Channel 1
BNC connector on the back of the
DataTrap II™ Data/VOD Recorder
to the
Channel 1
BNC connector on the
Signal
Conditioner Lid
.
2. Connect the
Power/Data Cable
to the
Channel 1
4-pin socket on the lid. Unroll the
cable to the location of the
Pre-Amplifier
.
3. Mount the
Strain Gauge
for
Channel 1
on the surface to be measured.
4. Connect the lead wires from the
Strain Gauge
to the
Pre-Amplifier
.
5. If you have manually adjustable preamplifiers, adjust the
Pre-Amplifier
so that both lights have
gone out. The directions to turn the adjustment screw are shown below. If the light over the “
E
”
in
BALANCE
is list, turn it clockwise. If the light over the “
B
” is lit, turn it counter
clockwise. If the screw becomes hard to turn, do not force it, confirm that the
Strain Gauge
does not have a short or broken wire.
6. If you have auto-adjustable
Pre-Amplifiers
(see picture on the right), press the
BALANCE
button if the
LO
or
HI
light is on. The pre-amplifier will now balance
itself. If this is not confirmed by both lights being off, check cable connections and confirm that the
Strain
Gauge
does not have a short or broken wire.
Repeat steps 1-4 and either 5 or 6 for
Channel 2
and higher channels.
7.8 Running A Strain Gauge Test
1. Press the
Next Test
button then the
Start
button.
2. Wait for the event to be tested.
3. If the
DataTrap II™ Data/VOD Recorder
is triggered manually, trigger it as soon as the event occurs.
4. Once it has been triggered, the
TRIG’D
light on the outside of the
DataTrap II™ Data/VOD Recorder
becomes lit. Once it has written data to its permanent memory, the light begins flashing. The data can
now be downloaded.
7.9 Downloading A Strain Gauge Test
Refer to the
DAS™ Data Acquisition Suite
manual.
Summary of Contents for DATA TRAP II
Page 5: ...T 1 613 545 0466 F 1 613 542 8029 www mrel com 1 Chapter 1 Getting Started...
Page 7: ...T 1 613 545 0466 F 1 613 542 8029 www mrel com 3 Chapter 2 Introduction...
Page 11: ...T 1 613 545 0466 F 1 613 542 8029 www mrel com 7 Chapter 3 Hardware...
Page 25: ...T 1 613 545 0466 F 1 613 542 8029 www mrel com 21 Chapter 4 Memory And Triggering...
Page 28: ...DataTrap II Operations Manual Edition 5 4 24...
Page 29: ...T 1 613 545 0466 F 1 613 542 8029 www mrel com 25...
Page 30: ...DataTrap II Operations Manual Edition 5 4 26...
Page 50: ...DataTrap II Operations Manual Edition 5 4 46...
Page 51: ...T 1 613 545 0466 F 1 613 542 8029 www mrel com 47 Chapter 7 Strain Gauge Upgrade...
Page 59: ...T 1 613 545 0466 F 1 613 542 8029 www mrel com 55...