Nokeval 2800-2061, Manual

3

Counter / batch controller 2800-2061 for pulse sensors

Description

The field display series 2800-2061 is designed for
pulse counting and batch control in applications where
a readability of 20  to 100 metres is required.
The incoming pulses are freely scaleable on display to
correspond the wanted number value, e.g. 1 incoming
pulse equals to 5,34 on display. Display memory
stores the calculated value in memory for one week
after power supply break.
The preset function makes it possible to use the
counter as a batch controller as well. Counting can be
done up- or downwards from the preset value.  Alarm
relays may control other devices. New counting can be
started automatically or manually by external key.

Large field counters are part of a larger display series
where by changing the input/output cards the display
can be modified to other input values such as
temperature, serial or frequency input. Two power
suppliy possibilities, one for 85..240 VAC and the
other for 24 VDC, both galvanically isolated from input/
output. Readability of the displays is also good outdoors
if exposure to direct sun light is prevented by using a
sun cover. Case protection is IP65.

*

5620.0

Flow sensor with
pulse output
1 pulse=15,3 litres

Valve

Output relay closes valve
when counter reaches set
value. Reset activates
relay and opens valve.

Reset and new start

Contact information
when new barrel
ready for fill up

*

100.0

Output
relay

Valve

Quantity

t

Scaleable pulse input may be set to
indicate real value on display, e.g. 1
pulse corresponds to 5,3 m³ on display
or 1 pulse corresponds to 15,3 litres.

Picture on the right shows
application of flow sensor with
pulse output.
Below an application from piece
goods automation.