Datasheet

www.piher.net
P13
P08
P09 P10 P11
P12
P07P06P05P04
P02P1FP1I
PAI
B
B
PAF
B
B
Wiper
position
Wiper
position
A= 32.625 º
B= 34.5º
PID
A
PFD
A
56
DETENT CONFIGURATIONS EXAMPLES
P03
PAM
(wiper positioned at initial)
(wiper positioned at final)
Relative detent positions
along the total mechanical
travel.
Unless otherwise
specified the detents
are evenly spaced
(using the end points
as reference)
*For more than 13 detents versions please contact your
nearest PIHER distributor. Mechanical and/or electrical
features may be affected by detents. Detents may not be
available for all mounting methods. Please see our
separate PTs with detents datasheet at www.piher.net
This innovative PT´s with detents
family has been specifically developed
to allow the integration of otherwise
large and expensive external
mechanisms into the body of the
potentiometer thus allowing a high
range of configurations: special tapers,
torque, tolerances, linearity, cut track,
etc.
This detent design not only adds a
"click" sensation of position, but also
offers enormous savings in both cost
and space for any given application.
Strong and weak detents can be mixed
as per customer´s request.
Detent number and positions can be
made or fitted to the customer needs
or preferences.
d1 d2 d3 d4 d5 d6 d7 d8
Wiper position
d1
d2
d3
d4
d5
d6
d7
d8
d0
d9
d0
d9
E A
S
E
A
== = = = = ===
°
6
2
EA
Constant value zones can be combined with strategically located stops matching the flat
areas of the output.
Improved repeatability
when the potentiometer´s wiper position is located at detent
nº8, the output votage will be exactly 88.9% Un
DETENTS WITH CONSTANT VALUE ZONES
application
notes
10 stepped outputs version example:
Unique, non-overlapping values at each stop (detent position)
Prevents output value change due to light vibration or accidental rotor micro-movements
Fully customisable according to customer´s needs
Cost effective replacement for absolute encoders
Main advantages
Absolute encoders can easily be
replaced connecting the potentiometer to
the microprocessor´s
analogue input.
Design tip. Cost-effectiveness
PIHER´s potentiometers may feature
special stepped outputs or constant
voltage zones for the 10mm and
15mm product families.
These constant voltage zones can be
combined with PIHERs mechanical
detents to provide exact alignment
between the electrical output (flat
areas) and the mechanical detents
positions. The result is a higher level
of precision in controlling lighting,
temperature, motor or other
electronic control systems.
In addition to established catalogue
detent configurations, we will design
and manufacture any other
configuration on our tried-and-tested
carbon/cermet & THM/SMD
potentiometer technology and
processes.
With its exacting control capabilities,
our 10mm and 15mm potentiometers
series are well suited for many
consumer applications such as
ovens, ranges, dishwashers, lighting
(dimmers), power hand tools,
washing machines and HVAC
systems.
By combining the constant value zones with the detents, engineers
can align the same voltage values with each of the detent stops
when rotating the control both forward and backward.
This provides clear mechanical positions that are not only repeatable,
but perfectly aligned electrical outputs at each of the (detent) angles.
Piher´s detents also prevent output values from changing due to
vibration or accidental rotor movements, furthering reliable control
consistency.
100%
88.9% Un
77.7% Un
66.6% Un
55.5% Un
44.4% Un
33.3% Un
22.2% Un
11.1% Un
0% Un / 0º
100% Un
50%
0º 234º
S