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There are two main operating modes for your blackbox, Run Mode and
Program Mode. There is also a Test Mode, used for checking the set-up. All
modes are now described.
Run Mode
This mode is used once the blackbox has been set up in program mode. It is
also the default mode that the unit reverts to when it resumes operation after
a power failure.
When the blackbox is switched on for the first time, it will provide an output
proportional to the distance from the transducer to the target, in feet. All relays
by default are switched off.
If either the PC Programming Software (standard) or the Hand-Held
Calibrator (optional), are connected to the blackbox, via the RS232 interface,
while the blackbox is in the RUN mode then the current measurement will be
displayed, dependent on mode and measurement unit's chosen. Models fitted
with the optional LCD display and integral keypad will also display the
current measurement, dependent on mode and measurement unit's chosen.
After programming is complete, any relays that are set will operate when the
measurement reaches the relevant setpoint.
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