PRASTEL MLX24V Manual Del Usuario página 15

OPERATION OPERATION
OPERATION OPERATION
Power up Power up Power up Power up
Upon power up the detector initializes by automatically tuning to the loop. The green LED indicates
that the detector is powered and operational.
Frequency setting Frequency setting
Frequency setting Frequency setting
The operating frequency of the loop is a function of the specific loop inductance and DIP switch
settings 1 and 2. The primary purpose of the frequency setting is to allow the installer the ability to
set different operating frequencies for multi-loop installations, recommended to prevent
crosstalk/interference from adjacent loops.
Frequency Count switch to re-initialize the detector. To check the operating frequency of a loop refer
to the Frequency Count section.
occurring, refer to the Sensitivity Display section.
Sensitivity Display Sensitivity Display
Sensitivity Display Sensitivity Display
The sensitivity display simplifies the installation process by displaying the sensitivity setting required
to detect a vehicle on the loop. To use this feature, observe the display while a vehicle is moving
into position on the loop, note the number displayed, then adjust the sensitivity setting (rotary switch)
to the displayed position.
During normal operation, when a vehicle is not on the loop, the display is blank. The effects of
crosstalk or other interference can be observed on the display when the loop is vacant. Interference
or crosstalk will cause the display to indicate a level, typically 8 or 9. It may be necessary to observe
the display for a minute or so to see this effect. Change the frequency setting to prevent crosstalk.
Sensitivity setting Sensitivity setting
Sensitivity setting Sensitivity setting
The 10-position rotary switch allows for precise adjustment of detection level. The sensitivity level
increases from position 0 thru 9 with position 0 being the lowest sensitivity. Typical applications
require a setting of 3 or 4. The sensitivity display simplifies the installation process by displaying the
sensitivity setting required to detect a vehicle on the loop. To use this feature, observe the display
while a vehicle is moving into position on the loop, note the number displayed, then adjust the
sensitivity setting (rotary switch) to the displayed position.
Frequency Count / Reset Frequency Count / Reset Frequency Count / Reset Frequency Count / Reset
Press the Frequency Count switch and count the number of flashes on the red LED. Each flash
represents 10kHz. To help to prevent crosstalk when multiple detectors are used for adjacent loops,
perform a frequency count on each detector to confirm the operation frequencies are different.
Following a frequency count cycle, the detector re-initializes
Automatic Sensitivity Boost Automatic Sensitivity Boost
Automatic Sensitivity Boost Automatic Sensitivity Boost
The Automatic Sensitivity Boost causes the sensitivity to increase following initial detection. This
feature is useful to prevent dropout when detecting high-bed vehicles. The sensitivity returns to its
normal setting after the vehicle exits the loop. Decimal point on the display indicates ASB on.
MLX24V
09/12/2013
ENGLISH
After changing the frequency setting, press the
To determine whether crosstalk between adjacent loops is
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