21 • Compulevel
TM
Measurement system
Monitor
The MONITOR function can be used to keep the COMPULEVEL
TM
from
shutting off during periods of inactivity. It also can be used with a serial
link to a PC for remote monitoring or data logging. For example, please
the base unit on a Styrofoam float to log water tank or river levels.
To enter the MONITOR function, press and hold the ON/OFF and CAL keys
together for two seconds when turning on COMPULEVEL
TM
.
To exit, turn the unit off.
Note:
The MONITOR function disables the AUTO-OFF feature and enables
continuous data from the serial port.
CAUTION: MONITOR reduces battery life 15%.
Remember: Shut off when finished to avoid loss of battery.
Display Alarm Indicators*
CAL
- - 0 - -
8888
BAT
CORD
* See page 6 for illustration of alarm indicators.
Flashes if unit needs to be re-calibrated due to temperature
change. CAL is on constantly when unit is outside of the -25°F
to +158°F operating temperature range.
CAUTION: Measurements may be in error.
Periodic flash on the display indicates re-zero required due to
temperature change.
8888 Alternates with displayed elevation when the
measurement module is more than 20’ above or below the
base unit.
CAUTION: Over range measurements may be in
error.
If 8888 flashes well within range, check troubleshooting
chart; check for cord damage or leakage and if necessary,
return to service.
Flashes when only a few hours of battery life remain. A fresh
9V alkaline battery can allow up to 60 hours of active use.
Flashes to indicate cord or system failure requiring factory
service.
CAUTION: Measurements may be in error.
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