System Operation Manual
SAT-DN-00434, Rev. B
LOBO
2017-05-16
Page 21 of 86
Copyright
2017 Sea-Bird Scientific. All rights reserved.
4.1
Sea-Bird Scientific STOR-X Datalogger/Controller
The STOR-X is a compact, low-power data logger that provides scheduled data acquisition in remote field
applications. It acquires and logs data from up to five instrument ports according to a user specified
sampling schedule, entering a low power deep-sleep mode between events to conserve power to allow
deployments for extended periods. All recorded data is date and time stamped from the STOR-
X’s precision
onboard real-time clock (RTC) to allow post-processing software to correlate all attached sensor data in
time, as well as correlation between each monitoring site.
For systems using wireless telemetry, a dedicated serial port on the STOR-X interfaces to an external cellular
modem (or other wireless interface). The modem is used to email recorded data and an activity record to
the user or server computer. In addition the STOR-X uses the modem to download new schedule files from
a specified location, typically a server computer. The STOR-X is shown below in Figure 8, mounted in a
DockLOBO or RiverLOBO frame.
Figure 8: STOR-X mounted in frame
The STOR-X features supply voltage monitoring with brownout protection to better support operation from
rechargeable battery power sources. The supply voltage is monitored and if the preset lower voltage
threshold is reached, the STOR-X suspends operation and sleeps for a fixed amount of time (1 hour) to allow
the power source time to recharge. The STOR-X then checks the supply voltage; if the voltage has recovered
to a level above the upper voltage threshold, normal operation resumes. If not, the STOR-X sleeps for 4
hours, and then rechecks the supply voltage. The process repeats in 4 hour intervals until the supply voltage
has recovered. Note that although the upper and lower voltage thresholds are configurable, these are
administration mode settings, and are set to match the power source. Normally the end-user will not be
required to change these settings. Note that the STOR-X also has a hardware low-voltage detection circuit
that will force the STOR-X to shut down gracefully if power is inadvertently removed. Provided the autorun
feature of the STOR-X is enabled, the shell program will force the program to restart when power is
restored.
STOR-X
Mounting Bracket (x2)