83123015 Crouzet USA, 83123015 Datasheet - Page 123

• Manufacturer Part Number: 83123015
• Description: SNAP SWITCH
• Manufacturer: Crouzet USA
• Type: Basicr

Specifications of 83123015

• Actuator Type: Plunger
• Brand/series: 83123 Series
• Contact Form: SPDT-NC/NO
• Current, Rating: 5 A
• Flammability Rating: UL 94V-0
• Force, Operating: 18.7 Oz.
• Ip Rating: IP66
• Mounting Hole Size: 0.125 "
• Number Of Poles: 1
• Number Of Positions: 2
• Operation: Snap Action
• Temperature Rating: 0 to 85 °C
• Termination: Cable
• Voltage, Rating: 250 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Inductive Proximity Detectors – Technical Guide
Target
M
Operating principles
Figure 1 illustrates the principle of an Inductive Proximity Detector (I.P.D.)
The I.P.D. signals the presence of a metal object "M" close to its sensing
face.
It contains a high-frequency oscillator "O" whose oscillating circuit coil
"S", located in a magnetic ferrite open on one side, forms the sensing
face. An alternating magnetic field is created in front of this. On entering
this field, any metal part "M" causes eddy currents, thus reducing the
amplitude of oscillation. This reduced amplitude is converted by the
pulse shaper "D" into an output signal amplified by "V".
Operating characteristics:
Sensing distance S: Distance at which the target determines a change
in the status of the output signal, as it approaches the sensing face.
Nominal sensing distance Sn: Conventional value used to describe
the device. Does not take account of dispersion (due to manufacturing,
temperature, voltage).
Actual sensing distance Sr: Actual value measured from constant
parameters (temperature, voltage, installation conditions etc), which
must be between 90 and 110 % of the nominal sensing distance Sn.
Usable sensing distance Su: Value measured within the specified
limits of the temperature and voltage zones, which must be between
81% and 121% of the nominal sensing distance Sn.
Operating sensing distance Sa: Distance within which the detector will
operate correctly in specified conditions.
Repeatability R: Value of variation in the actual sensing distance Sr in
specified conditions (time, temperature, voltage).
Differential travel H: Distance between the pick-up point when the
target approaches the detector and the drop-out point when the target
moves away.
Oscillator
Su max.
Sr max.
Sn
Sr min.
Su min.
S
Order/Technical Support – Tel: [phone] / FAX: [phone] / www.crouzet-usa.com
O
0.81 Sn < Su < 1.21 Sn
Sa
0.9 Sn < Sr < 1.1 Sn
0 < Sa < 0.81 Sn
Pulse shaper
Sensing face
Guaranteed
operation
D
Target
Products and specifications subject to change without notice.
Amplifier
V
Proximity
detector
Su max. + H
Sr max. + H
Sn + H
Sr min. + H
Su min. + H
Load
Method of measuring sensing distances: according to standard
EN 50010.
Lateral approach and axial approach:
Electrical characteristics:
Normally open function (NO): Corresponds to a detector whose output
allows the current to pass through when the target is detected.
Normally closed function (NC): Corresponds to a detector whose
output blocks the current when the target is detected.
Voltage drop Ud: Voltage measured across the active output of the
detector in closed state under its nominal operating current (load current Ia).
Load current Ia: Maximum current with which the detector permanently
operates correctly.
Leakage current Ir: Current which continues to circulate in the load and
in the output circuit when the detector is in the open state.
Minimum operating current Im: Current necessary to maintain
conduction of the switching element.
Time delay before availability Tv: Time necessary for the sensor
output signal to operate when powering up.
Switching frequency F: Number of operating cycles carried out during
a specified time. It is measured according to the method shown below
(Standard EN 50010 NFC 63075).
m : width of the target.
Operating voltage Un: Voltage range within which the detector
maintains its specified characteristics.
Ripple voltage: Ratio between the amplitude of an alternating voltage
(peak to peak) and the direct voltage on which it is superimposed.
Equivalent circuit diagram
Lateral approach :
target perpendicular
to reference axis
H
Un
Tv
Supply voltage
NO
NC
Detector status accepted
H
Rotation
Detector
A
B
Detector
Sensing face
Axial approach : target centred on
Actual sensing distance
Disc
Measuring plate
reference axis
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