Accutech 800121, Manual

Page: 27 / 156

LC 1200 Manual The LC unit 2-5
Potentiometers
NOTE:
Environmental conditions may cause a
need to deviate slightly from the
potentiometers’ default settings (Figure
2.7).
Each LC unit should be tuned properly
for its environment during installation.
All potentiometers are increased
clockwise.
C2 (Tuning capacitor)
Default setting: Varies
Looser setting yields lower frequencies
Tighter setting yields higher frequencies
This capacitor maximizes the Tx Activation
Field strength of the chosen frequency.
R4 (Tx Gain)
Default setting: Full scale
This potentiometer controls the range of the Tx
Activation Field on a properly tuned unit.
R16 (Rx Gain)
Default setting: Half scale
This potentiometer controls the gain of the
received signal amplifier.
R26 (Rx Sensitivity)
Default setting: Half scale
This potentiometer controls the sensitivity of the
internal receiver.
R32 (Volume Control)
Default setting: Full scale
This potentiometer controls the volume of the
internal peizo.
R43 (Tag Detect Delay)
Default setting: Half scale (9 seconds)
This potentiometer sets the Tag Detect Delay
time (2 to 18 seconds).
Figure 2.7 Potentiometers
Tamper Switch
The Tamper Switch (S1) (Figure 2.8) is
provided to prevent unauthorized access to the
LC unit. An alarm will be generated if the LC
unit cover is removed (power to the unit is
required).
Figure 2.8 Tamper Switch