ROUND UP
Speed monitors with high input frequency
ifm electronic
’s range of speed monitors
with high input frequency from as low as
one pulse per minute up to 60 000 pulses
/ minute now include an extended operat-
ing temperature range down to 40°C below
zero. Their luminous OLED display is not
only clearer but also brighter.
Several versions are available: Speed
monitors DD2503 and DD2603 monitor
the rotational speed of one channel with
two separately adjustable limit values. A
separate switched output is assigned to
each limit value and an analogue signal is
provided for further processing or display.
The DD2505 and DD2605 monitor two
separate input channels, each having one
switch point.
The DD2603 and DD2605 can also check
that the sensor cabling is intact (when used
with the recommended sensors). Other
devices in the range fulfil other vital func-
tions: the DR2503 and DR2505 will check
that a piece of machinery, such as a hoist
or a pump, is rotating in the desired direc-
tion, as dire consequences can result if the
direction is wrong.
Enquiries:Tel. 012 450 0370
or email
info.za@ifm.comMechatronic flow meter with digital display
ifm electronic
has fitted its new inline flow
meters with a rotatable multi-colour display
which is clearly visible from all sides. A red/
green colour selection of the display values
clearly signals to the user when the set val-
ues are too high or too low. Moreover, the
device has a fast response time of < 10 ms.
The piston located in the valve seat in
the housing is lifted by the flowing medium
against the spring. The piston position is
monitored via a magnetic field sensor and
output as an analogue signal. The spring
resistance forces the piston to return to its
original position with decreasing flow.This
ensures position-independent installation
of the flow meter preventing backflow.The
sensor head can be rotated by 360°C so that
it can be read in any position.Two switching
status LEDs on the sensor head, which are
clearly visible from all sides, indicate the set
and reset points.The device is rated for me-
dium temperatures up to 100°C and it can
also measure and display the temperature.
Thanks to its three pushbuttons, setting is
quick and easy.With the IO-Link functional-
ity the user is more than fit for Industry 4.0.
Enquiries:Tel. 012 450 0370
or email
info.za@ifm.comPRESSURE + LEVEL MEASUREMENT




