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QDW90A-KG Digital Pressure Switch for Equipment Control

A rugged IP65 digital pressure switch with dual configurable PNP/NPN outputs, adjustable 1ms–10s response, and optional analog output for precise pump, hydraulic, and pneumatic control.
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QDW90A-KG Digital Pressure Switch

PNP / NPN Output Compatibility

QDW90A-KG is a digital pressure switch designed around “PNP / NPN Output Compatibility.” Provides clear switching, alarm or relay functions for equipment control and interlocking. The alarm, relay, switching or control function turns the measured condition into a clear action for pumps, valves, warning devices or equipment interlocks. The confirmed values highlighted here are PNP, NPN. The feature is directly relevant to pressure monitoring, chemical process and industrial process projects. Respond faster to abnormal conditions and equipment control demands, helping engineers keep the installation, inspection and signal path easier to manage during long-term operation.

QDW90A-KG digital pressure switch with PNP and NPN output options for pump valve and alarm control

Adjustable Response Time for Different Control Tasks

QDW90A-KG is a digital pressure switch designed around “Adjustable Response Time for Different Control Tasks.” Improves pressure stability, response or operating efficiency under changing field conditions. The stated operating range, accuracy, response, overload or stability feature supports more dependable data under changing field conditions. The feature is directly relevant to pressure monitoring, chemical process and industrial process projects. Maintain clearer trend data during long-term industrial operation, helping engineers keep the installation, inspection and signal path easier to manage during long-term operation.

QDW90A-KG smart pressure switch with adjustable response time for industrial pressure control applications

Fast Zero Adjustment for Efficient Commissioning

QDW90A-KG is a digital pressure switch designed around “Fast Zero Adjustment for Efficient Commissioning.” Provides clear switching, alarm or relay functions for equipment control and interlocking. The alarm, relay, switching or control function turns the measured condition into a clear action for pumps, valves, warning devices or equipment interlocks. The feature is directly relevant to pressure monitoring, chemical process and industrial process projects. Respond faster to abnormal conditions and equipment control demands, helping engineers keep the installation, inspection and signal path easier to manage during long-term operation.

QDW90A-KG electronic pressure switch with fast zero adjustment for equipment commissioning and control

Technical Specifications

Switch Point Repeatability:≤0.5% F.S.

Hysteresis Adjustment Range:0.5% ~ 100% F.S., continuously adjustable per channel

Switching Response Time:1ms ~ 10s software adjustable, 1ms step; eliminates false triggers from pressure pulsation

Switch Control Modes:Hysteresis mode / window mode; independently configurable for both SP1 and SP2

Switch Output Type:2-channel PNP or NPN transistor output (specify when ordering)

Maximum Switching Current per Channel:200mA, resistive load

Analog Output Accuracy:≤0.5% F.S.

Zero Temperature Drift:≤0.03% F.S./℃

Sensitivity Temperature Drift:≤0.03% F.S./℃

Long-term Stability:≤0.5% F.S./year

Switching Service Life:≥1,000,000 operations; solid-state output eliminates mechanical contact wear

Dimension Chart

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Wiring Diagram

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Phone: +86-19715617532
Add: Building 14, University Science and Technology Park, Fenghuangshan Economic Development Zone, Xiangshan District, Huaibei City, Anhui Province

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