• Honeywell DWR06 785-DWR06
  • Honeywell DWR06 785-DWR06
  • Honeywell DWR06 785-DWR06
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Honeywell DWR06 785-DWR06 Differential Pressure Sensor

Honeywell DWR06 785-DWR06 Differential Pressure Sensor

Description

The Honeywell DWR06 (FEMA) is a high-precision mechanical differential pressure switch/limiter designed for critical monitoring of overpressure in industrial systems. It is engineered for applications involving hot water, steam, fuel...

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SKU: DWR06 785-DWR06
Vendor: Honeywell
Category: Pressure Sensor
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Description

The Honeywell DWR06 (FEMA) is a high-precision mechanical differential pressure switch/limiter designed for critical monitoring of overpressure in industrial systems. It is engineered for applications involving hot water, steam, fuel gases, and liquid fuels. This device is classified as a pressure limiter of special construction (DBS), meaning it is designed to fail to a safe state in the event of mechanical breakage or leakage, ensuring the system responds as if the maximum pressure limit has been exceeded.

Features

  • Self-monitoring sensor design for enhanced safety.
  • Equipped with positive opening microswitches.
  • Gold-plated contacts for reliable signal transmission.
  • Tested for up to 2 million operating cycles.
  • Seawater-resistant die-cast aluminum housing suitable for harsh environments.
  • Certified for component safety via TÜV and DVGW.

Applications

  • Steam and Hot Water Systems: Acts as a pressure limiter for boilers, compliant with DIN EN 12828 and EN 12952-11.
  • Fuel and Gas Monitoring: Suitable for monitoring burnable gases (DVGW G 260) and liquid fuels such as fuel oil.
  • Industrial Process Engineering: High-precision max/min pressure monitoring for critical thermal installations.
  • Hazardous Areas: Can be used in Ex-zones (0, 1, 2, 20, 21, 22) when paired with an appropriate isolating amplifier for line break and short-circuit monitoring.

Technical Specifications

Model DWR06 785-DWR06
Pressure Type Differential
Operating Pressure 0.1 bar to 0.6 bar
Accuracy 1%
Port Size G 1/2, G 1/4
Mounting Style Panel Mount
Operating Voltage 250 VAC
Operating Current 8 A
Max Operating Temperature +70 degC
Bursting Pressure ≥ 100 bar

Installation Guidelines

  • Ensure the device is installed by qualified personnel familiar with pressure-limiting safety requirements.
  • For Ex-zone applications, the isolating amplifier must be installed outside the hazardous area.
  • Monitor lines between the switch and the isolating amplifier for short circuits and line breaks to maintain safety integrity.
  • At ambient temperatures at or below 0 degC, ensure no condensation forms within the sensor or switching mechanism.
  • Always power down the system before performing wiring or maintenance on the sensor.

FAQ

What is the Honeywell DWR06?

It is a FEMA mechanical pressure switch used to monitor maximum and minimum pressure, specifically designed for safety-critical applications like boilers and fuel lines.

What does DWR stand for?

The DWR series is calibrated for rising pressure, meaning the adjustable switching pressure on the scale corresponds to the switching point at rising pressure.

What is the bursting pressure?

The bursting pressure is ≥ 100 bar, as verified by TÜV testing.