Manual
Double Sheet Detector R100 I100
for pairs of sensors
B0003308 / 1.4 /
13.02.2013
Mounting
ROLAND ELECTRONIC GmbH · Otto-Maurer-Str. 17 · DE 75210 Keltern · Phone +49 (0)7236-9392-0 · Fax +49 (0)7236-9392-33
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4 Mounting
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4.1
Mounting of the control unit
The system is available in 3 different enclosures:
•
for machine mounting, cables pluggable, in metal enclosure,
protection class IP54.
•
for DIN-rail mounting (EN50022, BS5584), protection class IP00.
•
for machine mounting, in plastic enclosure with transparent lid,
protection class IP65.
The system should be mounted in such a way that the indicators and operating keys in the front of
the unit are always well visible. The place should be safely accessible and free from obstruction.
The system must not be exposed to extreme temperature, irradiation or mechanical load.
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4.2
Mounting of the sensors
Caution!
The sensors must be kept away from magnet sensitive
media (cheque cards, hard disks, diskettes…) and
systems (cardiac pacemakers, solenoid switches).
Sensors with different sizes are available. The size has substantial influence on the thickness
measuring range.
Mounting:
The place of mounting depends on the transporting equipment. In principle a distance of more than
0.5m must be kept from magnetic/electromagnetic interference sources like e.g. valve coils,
transportation magnets, inductive proximity switches or the like.
The sensors can be mounted in any direction, transmitter and receiver must be aligned face-to-
face. The possible distance (Ax) of the sensors can be read from the sensor diagrams.
• It is recommended to mount the sensors in “stick-out” position in brackets made of plastic or
stainless steel.
• Flush mounting is also possible, then however only in brackets made of plastic material.
• Recessed installation is very unfavourable, particles and splinters can accumulate in the recess.
• Sensor brackets made of electrically well conductive NF metals (aluminum, copper, brass)
should not be used, since otherwise the sensor distances must be reduced (see sensor
diagrams).
Length and width of the sheet to be controlled should be at least 3 × the sensor diameter. Then
safe double sheet control is ensured.
The minimum retention time of the sheet between the sensors (full surface coverage) up to
switching the appropriate exit depends on the sensor diameter. The minimum retention time (in
milliseconds) corresponds roughly to the sensor diameter. Something similar applies to the
minimum measuring break between 2 sheet metals up to switching the appropriate exit.
