UE LDP1WC/250P-16 Low Differential Pressure Switch

The UE LDP1WC/250P-16 is a precision low differential pressure switch from the ECHOLINE LDP series, engineered in collaboration with leading semiconductor manufacturers for advanced exhaust system monitoring. This device provides reliable detection of low pressure differentials with integrated diagnostic capabilities for critical industrial applications.

Measurement and Switching Specifications

Designed for monitoring clean air, dry gases, corrosive media, and inert gases, the switch accommodates a burst pressure of 20 psig. The switching setpoint is field-adjustable, allowing operators to customize threshold values for specific process requirements. Switch repeatability is rated at ±0.5 percent of full scale, ensuring consistent performance across repeated cycles. The adjustable switch response time ranges from 1 to 30 seconds, providing flexibility for applications requiring delayed alarm activation.

• Switch Output: 1 A at 30 VDC

• Deadband: 1% of full scale

• Repeatability: ±0.5% of full scale

• Switch Point: Field adjustable

• Response Time: 1 to 30 seconds (adjustable)

• Input Power: 12 to 24 VDC

• Analog Output: Optional 0-10 VDC or 4-20 mA

• Status Indicator: In Range LED

• Media Connections: 1/4 inch compression or barbed fittings

Maintenance Mode Feature

A unique maintenance mode is incorporated into the LDP1WC/250P-16 to prevent false triggering during ventilation system balancing. When engaged, this feature temporarily suspends alarm output while maintaining normal monitoring functions, allowing technicians to perform system adjustments without generating nuisance alarms. This capability is particularly valuable in semiconductor manufacturing facilities where exhaust system balancing is regularly required.

Environmental and Certification

The LDP1WC/250P-16 operates within a temperature range of 0°C to 40°C and has a minimum operational life of 5 million cycles, ensuring long-term reliability in continuous monitoring applications. The device is certified to CE, UL508, and UL991 standards, confirming compliance with international safety and performance requirements for industrial control equipment.