klay profibus 4000New: Profibus PA output

All Series 4000 transmitters now available with Profibus PA output

Our high end Series 4000, 4000-SAN and DP-4000 are now also available with Profibus PA output. This newly developed output replaces the Profibus PA output on the Series 2000 which is not available anymore.

The intelligent 4000 transmitters are all stainless steel. Easy programming with unique "one touch programming button" and multilingual display with backlight. Check out all types with Profibus.

Check out all types with Profibus:

Pressure > Series 4000
Pressure > Series 4000-SAN
Level > Series 4000
Level > Series 4000-SAN
Differential pressure > DP-4000

klay new differential pressure transmitter dp 4000New: Differential Pressure Transmitter DP-4000

'All stainless' differential pressure transmitter

Klay instruments has launched a new differential pressure transmitter. The new DP-4000 has a stainless steel housing as standard. This unique feature makes it very suitable for the food & dairy-, (petro)chemical and offshore industries.

The DP-4000 has a graphic multilingual display with backlight. Programming is easy with a "One touch programming button" and the display. The accuracy is 0.075 % and both HART protocols and a Square Root Function for flow measurement are standard on board.

Read all about the new DP-4000 Differential Pressure Transmitter

klay level transmitter new 4000 sanNew Series 4000 Transmitters

New 'High End' all stainless steel pressure and level transmitters.


  • Accuracy 0.075 %
  • Graphical display with bargraph and backlight
  • Unique "One touch programming button"
  • Turn down 20:1
  • Advanced tank linearisation functions
  • Option: HART protocol

As on all Klay transmitters also the Series 4000 are having active temperature compensation. All common process connections can be supplied. Measuring ranges from 50 mbar up to 100 bar.

klay new sil 2 certifiedKlay Transmitters SIL certified

We are proud to announce that we have received the SIL 2 certificate (proven in use) for our pressure and level transmitters:

  • Serie 8000(SAN)
  • Hydrobar
  • Serie 2000(SAN)
  • Hydrobar S en Hydrobar I

Demands for functional safety of process installations are increasing. Our instrumentation is an important link in the control of these installations.

SIL means Safety Integrity Level. It is based on two IEC standards. Aim is to create functional safety for a better control of the risks. The safety level is being expressed in levels SIL1 up to SIL4.

About Klay

Dutch manufacturer of process instrumentation. A flexible organisation and wide diversity in design of products. Our instruments are being used for industrial automation.


Klay Instruments B.V.
Nijverheidsweg 5
7991 CZ Dwingeloo
Tel +31 521 591 550
Fax +31 521 592 046
E-mail info@klay.nl