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Monitoring devices

273 products

Showing 121–144 of 273 results

DOLD MH 9352/003 – Phase Monitor

DOLD MH 9352/003 – Phase Monitor

45 mm

Phase Monitor

  • Most effective adaption to the application by 2 separated time delay functions for response value and reset value
  • Universal usage by selection of nominal voltage (4 steps)
  • Always the right unit in stock
DOLD MH 9398 – Active power transducer

DOLD MH 9398 – Active power transducer

45 mm

Active power transducer

  • Universal use because of relay- and analogue outputs
  • Reliability overload detection by active power measuring
  • To extend the life of your electric drives
  • Preventive maintenance
  • Quicker fault locating
DOLD MK 5130N – Noise filter

DOLD MK 5130N – Noise filter

22.5 mm

Noise filter

  • Reliable operation of measuring relays and other low consumption loads in systems with high frequency noise
  • Protection of measuring inputs / measuring relays by reduction of noise
  • More precise and constant measuring results
  • Increasing the availability of plants
DOLD MK 9046N – Voltage monitor

DOLD MK 9046N – Voltage monitor

22.5 mm

Voltage monitor

  • Protects plants and electronic systems by detecting reliably the increased residual ripple
  • Optimised adaption to the application by simple setting of the response value
  • No separately auxiliary voltage necessary
DOLD MK 9055N – Speed Monitor

DOLD MK 9055N – Speed Monitor

22.5 mm

Speed Monitor

  • Protection of machines and products
  • Easy setting
  • Universal input, for configuration of different sensors (PNP, NPN, 2-wire, contact, voltage)
  • With fast reaction at low speed
DOLD MK 9055N/5__ – Speed monitor

DOLD MK 9055N/5__ – Speed monitor

22.5 mm

Speed monitor

  • Protection of machines and products
  • Easy setting
  • Universal input, for configuration of different sensors (PNP, NPN, 2-wire, contact, voltage)
  • With fast reaction at low speed
DOLD MK 9143N – Mains Frequency Monitor

DOLD MK 9143N – Mains Frequency Monitor

22.5 mm

Mains Frequency Monitor

  • Monitoring of 50 – and 60 Hz-current supply on over- and underfrequency
  • For precise frequency measuring with fast response time
  • High disturbance immunity
  • Separately adjustable trip points and separate outputs for overand underfrequency (1 or 2 c/o each)