Pulse Mode
In pulse mode the Smart Interrupter puts a simple on/off
pulse onto the line and assists in signal identification when
using more than one Smart Interrupter at the same time. If
using more than one Smart Interrupter make the pulse On/
Off times different for each unit.
Press the pulse mode button to select pulse mode.
The following screen is displayed with the On time
highlighted. Press the OK button to toggle between
On time and Off time.
To set the ‘On’ time, press the
left/right buttons until the desired
time is displayed and press OK.
The Off time is now highlighted.
To set the ‘Off’ time, press the left/right buttons until the
desired time is displayed.
Note: From 0 to 10 seconds the time increases in steps of
0.1 seconds. From 10 to 100 seconds the time increases in
steps of 1 second. Times can be changed with the Smart
Interrupter running or stopped.
Once you have set the On and Off times press
the Run/Stop button to start the Smart Interrupter
running and apply the signal to the pipe.
Pulse Switching Inversion
It is possible to invert the switching order of the pulse mode
patterns (this feature only works in pulse mode). This is
useful for dataloggers that require the CP potentials to be in
a specific order. The normal mode of operation is to switch
the CP On, then Off.
To make the unit switch the voltage Off and then On: Press
and hold the Pulse Key, press the OK key and then release
both keys. The display will toggle the On and Off times as
shown below. To revert to the previous switching mode,
repeat the key press sequence. The order of switching
(On-Off or Off-On) is stored with the pulse pattern and will
be recalled if using the previous mode recall feature.
