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3 Product description
OPTISWITCH 3100 C • Relay (DPDT)
29953-EN-210702
It also works when subjected to strong external vibrations or changing
products.
Solid detection in water
If OPTISWITCH 3100 C was ordered for solids detection in water, the
tuning fork is set to the density of water. In air or when immersed in
water (density: 1 g/cm³/0.036 lbs/in), OPTISWITCH 3100 C signals
"uncovered". Only when the vibrating element is also covered with
solids (e.g. sand, sludge, gravel etc.) will the sensor signal "covered".
Function monitoring
The electronics module of OPTISWITCH 3100 C continuously moni-
tors the following criteria:
•
Correct vibrating frequency
•
Line break to the piezo drive
If one of the stated malfunctions is detected or in case of voltage sup-
ply, the electronics takes on a defined switching status, i.e. the relay
deenergises (safe state).
The tuning fork is piezoelectrically energised and vibrates at its
mechanical resonance frequency of approx. 150 Hz. When the tuning
fork is submerged in the product, the vibration amplitude changes.
This change is detected by the integrated electronics module and
converted into a switching command.
OPTISWITCH 3100 C is a compact instrument, i.e. it can be oper-
ated without external evaluation system. The integrated electronics
evaluates the level signal and outputs a switching signal. With this
switching signal, a connected device can be operated directly (e.g. a
warning system, a pump etc.).
The data for power supply are specified in chapter "
Technical data
".
3.3 Adjustment
On the electronics module you will find the following display and
adjustment elements:
•
Signal lamp for indication of the switching condition (green/red)
•
Potentiometer for adaptation to the product density
•
Mode switch for selecting the switching condition (min./max.)
3.4 Storage and transport
Your instrument was protected by packaging during transport. Its
capacity to handle normal loads during transport is assured by a test
based on ISO 4180.
The packaging of standard instruments consists of environment-
friendly, recyclable carton material. The sensing element is additional-
ly protected with a cardboard cover. For special versions, PE foam or
PE foil is also used. Please dispose of the packaging material through
specialised recycling companies.
Functional principle
Voltage supply
Packaging
