12 TDI
Pr o
Owner ’s Gui de
How to use i t
Starting at the fully clockwise (maximum) position, anytime during searching
select a volume level comfortable for your hearing. It is recommended to set
volume to maximum prior to selecting a Threshold hum. Then, if target signals
are too loud, reduce volume during searching. The Threshold level may need to
be readjusted after signifi cant Volume control changes. The Pulsescan TDI Pro
requires a Threshold level higher than most metal detectors to exceed noise.
By selecting this threshold above noise, and then reducing the Volume control,
the Threshold level, and the overall loudness of a target response, can both be
optimized to your hearing. When using headphones with separate built in volume
controls, it may be best to leave the Pulsescan TDI Pro Volume control at maxi-
mum, reducing the volume with the headphone volume control.
THRESHOLD -
What i t does
The Threshold adjusts the steady faint background hum heard continuously dur-
ing searching. This is the edge of responding, providing the best overall sensitiv-
ity to targets as well as indicating what is occurring within the Pulsescan TDI
Pro’s electronics.
How to use i t
In most detectors, including the Pulsescan TDI Pro, the Threshold is adjusted to
a faintly audible level, edge of responding. Unique to the Pulsescan TDI units, it
is best to adjust the Threshold past the chatter point so that the sound is reason-
ably steady and continuous. After selecting a Threshold level above the noise
level, the Volume control can be reduced to further reduce Threshold to a mini-
mum audible level while still taking into consideration adequate target response
volume for your hearing. Again, when using headphones with built in volume
controls leave Pulsescan TDI Pro Volume at maximum and reduce volume with
headphone control.
