Rev 6 – Feb 2022
Page 15 of 44
Delay Times
There are six delay time options for controlling the exact time that the Hexcorder Pro takes its DC
measurements within a cycle. The addition of ACVG does not affect the timing of the DC readings
or the overall cycle time. The delay times are in milliseconds and are timed from the start of their
respective portion of the cycle. i.e. an OFF delay of 100 ms means the reading will occur 100ms
after the interrupters turn off. An ON delay of 300ms means the reading will be taken 300ms after
the interrupters turn on.
In GPS synchronized mode, the use of delays can improve survey accuracy. When the cathodic
protection is first turned on or off, there can be an inductance spike in the voltage due to the
capacitance of the coating. A more accurate reading can be obtained by delaying the reading, instead
of taking the reading right as the rectifiers turn off. Inductive spikes can be seen on any waveforms
taken; this information can be used to adjust delay settings accordingly.
The SCOPE tab can be used to confirm the correct delay time setting. View the AC and DC scope
and verify that enough time is allowed to remove any influence from other sources.
The Hexcorder Pro will notify the user of any errors when the settings are saved.
