Sutron Corporation 8310 & 7310 Users Manual 8800-1125Rev. 2.7 (BETA) 4/16/2014 pg. 215
PROBABLE CAUSE/CORRECTION
To change the display contrast, press OFF/CANCEL down and then
press RIGHT (increase contrast) or LEFT (decrease contrast).
Averages are not
computed
Select Measurements menu and observe status information of the
sampling. Turn on diagnostics and examine logs for the cause.
Pressure
transducer gives
incorrect or no
readings
Use diagnostics menus to examine the input, the connections and
the raw values measured.
SDI-12 Sensors
do not operate
SDI-12 device set to wrong address. Use commands to query
address or set to new address.
Incorrect wiring or wiring short. Check wiring.
8310 will not
communicate
with another
Sutron device
Check the baud rate in the sub-menu. Check cable wiring.
System runs for a
short time and
then resets
Possible low battery voltage
If problem persists, return unit to factory
Telephone-
equipped unit
will not answer
phone
Bad connection to telephone line Ring signal not present on line
Improper settings of jumpers/switches, see Chapter 11 for correct
settings.
Cannot transfer
data from
telephone-equip
ped unit
GOES unit
transmits at
incorrect time
Make sure that transmit time is entered properly