Sutron Corporation X-Link Operations & Maintenance Manual, Rev 1.63 5/24/2016 pg. 127
13.3.2.
Time Not Set
This error is noted when X-Link does not have valid time. This error can only be
fixed by setting the time, which can be done via LinkComm's Diagnostics tab, via
the TIME command, or via the SDI-12 XDT command.
X-Link has an RTC (real time clock) backed by an internal battery. The clock is set
at the factory. The RTC keeps ticking even if the main battery is removed. This
means that X-Link should not forget the correct time when it loses power. The
battery lifetime is more than five years. When the system is powered, the
battery will never be consumed.
13.3.3.
Battery Low
X-Link considers any battery voltage below 10.5V to be an error in an effort to
indicate that the battery needs to be changed. The only way to fix this error is to
provide a supply of more than 10.5V.
13.3.4.
Hardware Failure
This error is recorded if any hardware issues were noted since boot up. The
errors will also be placed in the log. Every hardware error has a code logged with
it. A hardware error usually indicates a serious problem with the unit. Contact
Sutron customer support at 703 406 2800 for help with hardware errors.
13.3.5.
Transmission Failures
A variety of issues can cause problems with transmissions:
Two or more consecutive transmissions failing cause an error.
If more than 25 percent of total transmissions fail, an error is flagged.
If no measurements are set up to be included in the transmission data, the
system flags an error.
13.3.6.
Modem Errors
Not present: this flag is set when X-Link cannot detect or talk to the modem.
Comm Error: X-Link is having a hard time communicating with the modem. X-
Link will retry.
No SIM: The SIM card is not present.
BAD PIN: The SIM card has been locked with a PIN. Enter the correct PIN into
the
SIM PIN
field.
No Network: The modem cannot get a good signal.
Cannot Register: The modem has been denied registration by the cell
network.
