RBR#0008818revB
5
Accelerometer
Specification
Description
Range
±3g
Resolution
<100ng
.
Power supply selection
If connected, an external power supply will be used preferentially over the internal batteries
as long as the voltage
remains 4.5V or greater. If it drops below 4.5V or complete disconnection occurs, the system automatically switches to
the internal batteries.
Clock
The instrument's clock is maintained during brief disconnections. This time is usually sufficient to change batteries or
replace desiccants.
USB-C power
The USB-C cable provides power sufficient for configuration or data download. However, the instrument requires an
internal or external power supply to perform sampling.
.
Deployment estimates (with thionyl chloride cells)
.
Speed
Burst samples
Interval
Time
# of samples
16Hz
-
Continuous
~58 days
~79.5 million
4Hz
4096
120min
~400 days
~19.5 million
1s
60
30min
~4 years
~4.5 million
.
External MCBH-6-MP connector pinout
.
Pin No.
USB
RS-232
RS-485
1
Ground
2
Power in +4.5 to +30 V
3
N/C
Data output from the
instrument (Tx)
Data output from the
instrument (Tx-)
4
VUSB +5V
Data input into the
instrument (Rx)
Data input into the
instrument (Rx+)
5
D-
N/C
Data input into the
instrument (Rx-)
6
D+
N/C
Data output from the
instrument (Tx+)
