QDW90A Digital Pressure Switch – 2 PNP Outputs, Optional 4-20 mA, 0-1 to 0-60 MPa, G1/4

Description

The QDW90A-5SP is an electronic pressure switch with a digital display for liquids and gases. It measures line pressure, shows it on site and drives two switch outputs with adjustable set points, so a PLC, RTU or pump panel can start, stop or alarm on pressure without a separate gauge and switch. The 4-20 mA version also sends the live pressure to the controller.

Typical uses listed for this type of device: pump start/stop and pump protection, compressor and air-line pressure control, water injection and transfer lines, hydraulic units. Set points are adjusted with the front buttons; each output has its own LED.

Specifications (as listed by the supplier)

• Model: QDW90A-5SP
• Type: Digital pressure switch with display
• Supply: 10-32 VDC
• Output: 2 PNP switch outputs (option: 2 PNP + 4-20 mA)
• Range: 0-1 to 0-60 MPa (options)
• Process connection: G1/4 (BSPP) male thread
• Cable: 2 m, pre-wired
• Set points: Adjustable from zero to full scale
• Indicators: One LED per switch output

Before you order

• The thread is G1/4 (BSP parallel), not NPT. Use a G1/4 to 1/4″ NPT adapter for US fittings.
• Pick a range above your normal working pressure, not just the maximum.
• This device is not supplied with hazardous-area or other certifications. Do not use it as a certified device in classified (Class I Div 1/2) areas or as a safety shutdown.
• The unit label shows electrical data but not a product name.