Laser Rapier II Operator's Instruction Manual - page 14
LASER RAPIER II OPERATOR INSTRUCTION MANUAL
may also need to change tone based on field condition, such as traffic
noise, wind noise, flow water, ect.
THRESHOLD
Threshold Level Control
This rotary control has one function:
Adjusts the Threshold Control
The THRESHOLD control is used to adjust the audio level of
the detector’s threshold up or down to its desired level. Normal setting
would be a barely audible hum. This is not a volume control for the de-
tector itself. Although this control is placed on the front panel for con-
venience, once it is set to the desired threshold tone, it will not require
frequent resetting.
PINPOINT
QuickCheck Pinpointing Push-button
This push-button control has two functions:
Places the detector in Pinpoint Metal Mode
Adjusts the Threshold sound
When the detector is in the Discriminate Mode, the PINPOINT
push-button is used to momentarily change the operating mode for im-
proved pinpointing. Pressing the push-button places the detector in Pin-
point Mode. The detector remains in Pinpoint as long as the push-button
is held down. Releasing the push-button returns the detector to Dis-
criminate Mode. Pinpoint push-button must be held to adjust the thresh-
old.
Controlling Audio Volume
The speaker in the Rapier II does not have a volume control.
The volume should be sufficient to accurately hear the target response
sound in most environments. If more or less volume is required in your
particular situation, we recommend using a set of good quality head-
phones with a built-in volume control.
If the batteries are satisfactory, there will be a loud tone gradu-
ally fading to silence over 3 to 5 seconds. The fresher the batteries, the
louder the tone. When the tone becomes weak and brief, or there is no
sound at all, it is time to replace the batteries. Always fit 9 volt alka-
line batteries. Third, it is used to adjust the detector’s sensitivitiy. The
recommended setting for most conditions is around 9-10 on the scale. On
occasion you may need to reduce this to eliminate false signals when
encountering difficult conditions, i.e., highly mineralized ground on
junk infested sites. Wet salt sand may require you to drop to between 2-
5 sensitivity. Your Rapier incorporates a high gain boost over and above
normal maximum of 10. This is indicated by a red section on the scale.
Entering this setting will cause no harm to the unit, but may very well
cause instability. The boost section will give increased performance
only if conditions are ideal, so we would advise caution in its use.
DISC LEVEL
Discrimination Level Control
This rotary control has one function:
Adjusts the Discrimination Level
While the detector is in the Discriminate Mode, the DISC
LEVEL control is used to adjust the detector’s Discrimination Level.
Turning the DISC LEVEL knob clockwise increases the detector’s Dis-
crimination Level and vice versa.
TONE
Audio Tone Selection Switch
This switch has one function:
Select the Audio Tone
The TONE switch is used to select the audio tone for the detec-
tor. Selecting LOW will give the audio a lower tone. Selecting HIGH
will give the auido a higher tone. This will affect the detectors tone in
Discrimination mode, Pinpoint mode, and the Battery Test.
Select the audio which bests works for your conditions. Check
both modes with a small target to see which tone you hear better. You
13
12
OPERATING TECHNIQUES