Reverse warning alarm

Activate reverse alarm with electronic switch

Off-highway machinery in construction sites are required to warn the environment when reversing. Although many reverse warning alarm systems are commonly using a mechanical switch, Danfoss recommends using an electronic switch, type MEP mounted on the hydraulic circuit to activate the alarm.

Mechanical switches have many problems

  • Mechanical switches often leak causing warranty claims
  • The electrical contacts can burn out resulting in failure
  • The general accuracy is around +/- 5%
  • The set point can drift over time
  • Over and burst pressure limitation due to moving parts

Typical specifications

  • Switch point range: 5 bar
  • Pressure range: 0 – 80 bar
  • Temperature range: -40 – 125 °C
  • Accuracy: 2% FS

Features and benefits

Electronic pressure switches have 100% welded construction so no leakage possible

No electrical contacts to burn out

Highly accurate – better than 2% typical

No set point drift

Over and burst pressure advantage due to fully welded design

All the advantages from the “world” of transmitters in relation to vibration shock etc.

A more reliable reverse alarm system

Less wear outs of the switch due to no mechanical parts

Reduced warranty claims

Related products

  • MEP 2250 electronic pressure switch - Danfoss
    MEP 2200 series, electronic pressure switches, dual output

    MEP 2200 and 2250 are designed for use in severe OEM applications and has excellent long term stability with zero drift. MEP 2250 has a dual output with switch function and an analogue output signal: absolute voltage or 10-90% ratiometric voltage.

  • MEP 2650 electronic pressure switch, single output - Danfoss
    MEP 2600 series, electronic pressure switches, single output

    MEP 2600 and 2650 are designed for use in severe OEM applications and has excellent long term stability with zero drift. MEP 2650 has a single output: switch output, and is available with customized hysteresis and time constant.

Contact us

For further information, please contact us.