Differential and static pressure
Choose a useful DP span while confirming that both ports and the sensing element tolerate maximum line and static pressure.
PRODUCT FAMILY
Differential Pressure
Differential pressure instruments must be selected as part of the complete high- and low-side pressure system. Differential range, static pressure, overpressure, tubing or manifold layout, condensation, port orientation, and zero stability are critical selection inputs.
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in this family
Define the application before choosing a model.
Pressure path
Define high- and low-side connections, tubing length, manifold arrangement, drain or vent points, and protection from condensate or blockage.
Zero and signal
Confirm bidirectional requirements, zero adjustment, response filtering, output scaling, HART or RS-485 integration, and alarm behavior.
Typical applications
- HVAC filters and airflow proving
- Cleanroom pressure relationships
- Tank level with differential pressure
- Primary flow-element measurement
Commissioning focus
Equalize or establish a verified zero condition, confirm high/low port direction, apply known differential-pressure points, and test alarm or control behavior at operating thresholds.
Available differential pressure
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WKS-9
Single-Flange Explosion-Proof Differential Pressure Transmitter
A single-flange differential-pressure transmitter for sealed-vessel level and process-pressure service. It combines local LCD configuration, 4-20 mA with HART, 304/316 flange options, and a tantalum diaphragm option for strongly corrosive media.
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WKS-38
Explosion-Proof Differential Pressure Transmitter
An explosion-proof differential-pressure transmitter for pipeline differential pressure and flow-element service. It combines a single-crystal-silicon sensing element, corrosion-resistant 316L diaphragm options, local LCD setup, and 4-20 mA with HART communication for chemical-process integration.
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WKS-41
Low Differential Pressure Sensor for Ventilation
A wall-mounted low differential-pressure transmitter for positive, negative, and differential air-pressure monitoring in HVAC systems, cleanrooms, and air-handling units. Configurations cover -100 to 100 kPa with 0.5% FS accuracy, IP65 protection, and 4-20 mA, 0-10 V, RS-485, or switch output.
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WKS-42
RS-485 Air Differential Pressure Transmitter
A digital air differential-pressure transmitter for ventilation ducts, filter monitoring, and building automation. It measures positive, negative, or differential pressure from -100 to 100 kPa with 0.5% FS accuracy and offers 4-20 mA, 0-10 V, RS-485, or switch output in an IP65 wall-mounted enclosure.
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WKS-43
High-Accuracy Digital Differential Pressure Transmitter
A compact digital differential-pressure transmitter for pipeline DP, flow-element, oil, and hydraulic measurement. Its dual 316L diaphragms and diffused-silicon sensing element support ranges up to 7 MPa, with local indication and 4-20 mA or RS-485 output options.
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