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Klay Instruments

DP-4000

Precision differential pressure transmitter with 0.075% accuracy, HART/Profibus integration, and robust stainless steel construction for demanding industrial applications.

Klay Instruments DP-4000
Klay Instruments DP-4000
Klay Instruments DP-4000
Klay Instruments DP-4000

The DP-4000 differential pressure transmitter delivers exceptional measurement accuracy of 0.075% across a 10 mbar to 20 bar range, with optional 0.065% performance for critical applications. Featuring dual communication protocols—4-20 mA HART (versions 5.0 and 7.0) and Profibus PA—it integrates seamlessly into modern process control systems. Its rugged AISI 316L stainless steel construction, combined with 100:1 turndown capability and IP66/67 protection, ensures reliable operation in harsh environments from -20°C to +80°C. Available with ATEX Ex-ia certification and multiple diaphragm material options including Hastelloy C and Tantalum, the DP-4000 adapts to corrosive and high-temperature processes.

Specifications

Measuring range min. max.
10 mbar…20 bar
Static pressure
Max. 160 bar option 250 bar
Process temperature
-20 °C…+80°C (option 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 5.0 and 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
IP66/67 (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/FKM (standard), 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)

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DP-4000 (Klay Instruments)

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