5
MULTI-FUNCTION
INDICATOR (RED,
GREEN, AMBER)
POWER
INDICATOR
(GREEN)
METER MODE
The DS71/DS72 Controller provides a
feature for determining the magnetic
source strength detected by the
sensor.
Mount the sensor face
pointing at the magnetic (conveyor
source. We suggest approximately
12mm or .5 inches to start.
After
power is applied activate the “meter”
mode by pressing the calibration
pushbutton switch for
three (3
) or
more seconds. When the switch is released, the multi-function indicator begins flashing
at a rate inversely proportional to the strength of the detected magnetic signal.
One of the following examples will occur:
For minimum or no signal, the flash rate is approximately
<25
Hz and the color is red.
For nominal or maximum signal, the flash rate is
1 Hz
and the color is green.
There is a transition point where the indicator is amber.
In order for the detector to work it must sense sufficient magnetic strength to penetrate
(saturate) an inspected single metal blank and have additional magnetic flux for a
double blank thickness to block the signal. The Fluximity operates best if the magnetic
strength is >100 gauss. Gauss (G) is a unit of measurement for magnetic field strength
or flux density.
For example: approx. 1 gauss from earth’s magnetic north aligns a compass needle in
its direction.
When the flux is measured at 100G or greater the indicator will begin to
flash
green
at a rate of approximately
1 Hz
or 1 per second. This indicates the signal is
strong enough to detect double metal. For weak flux, under 100 gauss, the indicator
flashes
amber
slowly (<25 Hz) and
then red
as the magnetism is weaker. The
red
flashes rapidly or at maximum rate
(25 HZ)
if no flux is detected.
Locate Nominal Signal
With no metal on the conveyor, move the probe around while observing the indicator
flash rate and color. Any position or gap where the indicator is green and flashes at 1
Hz is a good location (>100G). The metal blanks must consistently pass this point
between the probe and magnet. Mount the probe there.
To deactivate the Meter Mode, press and release the pushbutton once. The multi-
function indicator reverts to the setting from the previous calibration. If this is the first
time these settings are from the factory and do not apply to your installation. Calibration
for this installation should follow.
