Fisher Labs M-Scope Operation Manual page 7

Please contact the Fisher factory or your Fisher Sales Representative, or Distributor
if you have not had technical training on accessing the diagnostic screens!
Diagnostics screens
The M-Scope has a Diagnostic Mode that can be used to check the performance of its six Photo Detector
channels, and of its three separate metal detector zones. It is also useful for exercising all of the
system's various LEDs. This mode was not designed for M-Scope operators' use. Misusing it can't damage
anything, so its operation is described below.
To enter the diagnostic mode, begin with the power to the M-Scope turned off. Turn the power on,
and quickly press the down arrow key, then the up arrow key, then wait for the unit to complete its
LED sequencing self test pattern. Each of these arrow key presses must be done within two seconds of
powering on.
This is a diagnostics mode entry on screen. It displays the software date and version information. If you
ever need to contact the manufacturer of your M-Scope to ask questions about, or report trouble with
your unit, it will be very helpful if you include this information in your correspondence.
Press any key to exit the diagnostics mode entry screen.
Press the 0 key twice to return to normal operating mode.
The operational diagnostic mode screens show the six Photo Detector channels' states. The open, light
colored ovals represent channels that are receiving a full power light signal. The filled in, dark colored
ovals represent channels that are blocked , indicating that they are being occluded by an obstruction in
the passageway. Channels receiving only partial illumination are depicted by partially filled in ovals.
The alphanumeric characters between the pairs of ovals represent the magnitudes of the three zones'
most recent target measurements. These values are expressed in hexadecimal engineering units *, and
they vary with the system's sensitivity setting.
Diagnostic mode target measurements are made by passing a target through the portal, across the Photo
Detectors' paths, just as they are in normal mode. The time it takes the target to go through the Photo
Detectors' paths is shown in units of seconds. This value is displayed as
*{Hexadecimal, also known as base sixteen, is a numbering system based on sixteen single digit characters.
The character set contains the ten decimal characters 0 through nine, followed by the first six letters of
the alphabet, A through F. The smallest two digit value in 'hex' is 00 and the largest is FF}.
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Huvudkontor Order & Lager: Malux Sweden AB, Box 221, 891 25 Örnsköldsvik. Växel 0660-29 29 00, fax 0660-850 85.
Försäljningskontor: Stockholm, Göteborg, Stenungsund, Kalmar. För adresser: www.malux.se.
t=xxS .
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Being careful not to disturb the bases' positions, connect the bases to the panels and fasten the base draw latches. The base
latches may need to be adjusted from time to time. Note that on the exit side of the panels: the green "dots" will Line up on the
step
Receiver panels and the red "dots" will Line up on the Transmitter panels. Stack the panels together by inserting a cone into the
appropriate cup & fastening the panel draw latches as it is installed. Note that each panel has one "keyed" cone corresponding
to one specific cup on another panel. Fig. H
base draw latches
panel draw latches
gReen/ReCeiveR OR ReD/tRansmitteR"DOt"
cup
cone
keyed
cone
cone
Huvudkontor Order & Lager: Malux Sweden AB, Box 221, 891 25 Örnsköldsvik. Växel 0660-29 29 00, fax 0660-850 85.
Försäljningskontor: Stockholm, Göteborg, Stenungsund, Kalmar. För adresser: www.malux.se.
Fig. H
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