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Intelligent Pressure Transmitter 4000 with metallic diaphragm

The all stainless series 4000 pressure transmitter has a flush diaphragm. Suitable for vacuum and pressure measurement on liquids and gasses. This microprocessor based transmitter can easily be programmed using the unique programming button and display.



  • All stainless steel housing
  • Adjustable with programming button, without test pressure
  • Graphic display with backlight
  • Local indicator (option)
  • All current process connections


Technical details

 Measuring range min. max.  0,1…100 bar
 Process temperature  -20 °C…+80 °C
 Accuracy  0,075 % of adjusted span
 Process connections  1” BSP and pulp- and paper connections with flush diaphragm, all current threaded connections
 Turn down  20:1
 Output  4-20 mA 2-wire with option HART protocol, Profibus PA
 Adjustment  With programming button and display, without test pressure or with HART
 Display  Multilingual, with bargraph, backlight and process temperature reading
 Power supply  12 - 36 Vdc (Ex: 12 - 30 Vdc)
 Protection  IP66 (option IP68)
 Ambient temperature  -20 °C...+70 °C
 Diaphragm material  AISI 316L, option Hastelloy C or Gold plated
 Wetted parts  AISI 316L
 Electronics housing  AISI 304, option AISI 316

 Explosion safety: ATEX Ex-ia and IECEx Ex-ia (Optional T5 and T6)



Absolute and relative pressure measurement of gas and liquids. Because of the flush diaphragm very suitable for liquids which can cause clogging like pulp, paper and starch. For the pulp and paper industry specific process connections are available.



  • Welding nipples for several connections


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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
E-mail info@klay.nl