DP-4000 Differential Pressure Transmitter

The Klay DP-4000 differential pressure transmitter delivers industrial-grade accuracy (0.075% standard, 0.065% optional) across measuring ranges from 10 mbar to 20 bar, supporting static pressures up to 160 bar (250 bar option). Built for demanding process environments, it features stainless steel or corrosion-resistant construction (AISI 316L standard, Hastelloy C or Tantalum options) and operates reliably from -20°C to +100°C. Dual communication via 4-20 mA HART protocol (v7.0) and Profibus PA enables seamless integration into automation networks, while the onboard display with programming button provides intuitive setup and real-time process temperature monitoring without requiring external test pressure equipment. ATEX and IECEx certified for hazardous area deployment.

Specifications

Measuring range min. max.

10 mbar…20 bar

Static pressure

Max. 160 bar option 250 bar

Process temperature

-20 °C…+100 °C

Accuracy

0,075 % option 0,065 %

Process connections

1/4 -18 NPT female, option ½”NPT

Turn down

Max. 100:1

Output

4-20 mA 2-wire + HART protocol (version 7.0), 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, Tantalum or Gold plated

Wetted parts

AISI 316L, option Hastelloy C

Material sensor gasket

Viton, option PTFE or NBR

Electronics housing

AISI 304, option AISI 316

Certificates/approvals

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