You are here:

Monitoring devices

273 products

Showing 97–120 of 273 results

DOLD LG 5130 – Noise filter

DOLD LG 5130 – 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 LK 5894 – Insulation monitor

DOLD LK 5894 – Insulation monitor

90 mm

Insulation monitor

  • Preventive fire and system protection
  • Quick fault localisation through selective earth fault detection to L+ and L-
  • Universal application in non-earthed AC, DC, AC/DC networks with up to 690 V nominal voltage
  • Suitable for large leakage capacitances up to 1000 μF
  • Simplest setting via engaging rotary switches
DOLD LK 5895 – Insulation monitor

DOLD LK 5895 – Insulation monitor

90 mm

Insulation monitor

  • Preventive fire and system protection
  • Quick fault localisation through selective earth fault detection to L+ and L-
  • Universal application in non-earthed AC, DC, AC/DC networks with up to 1000 V nominal voltage
  • Suitable for large leakage capacitances up to 3000 μF
  • Simplest setting via engaging rotary switches
DOLD LK 5896 – Insulation monitor

DOLD LK 5896 – Insulation monitor

90 mm

Insulation monitor

  • Preventive fire and system protection
  • Quick fault localisation through selective earth fault detection to L+ and L-
  • Universal application in non-earthed AC, DC, AC/DC networks with up to 1000 V nominal voltage
  • Suitable for large leakage capacitances up to 3000 μF
  • Simplest setting via engaging rotary switches
DOLD LK 5896/900 – Insulation monitor

DOLD LK 5896/900 – Insulation monitor

90 mm

Insulation monitor

  • Preventive fire and system protection
  • System for sequential monitoring of separated voltage systems, that can be coupled
  • Quick fault localisation through selective earth fault detection to L+ and L-
  • Universal application in non-earthed AC, DC, AC/DC networks with up to 1000 V nominal voltage
  • Suitable for large leakage capacitances up to 3000 μF
DOLD MH 9055 – Speed Monitor

DOLD MH 9055 – Speed Monitor

45 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 MH 9055/5__ – Speed monitor

DOLD MH 9055/5__ – Speed monitor

45 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 MH 9143 – Mains Frequency Monitor

DOLD MH 9143 – Mains Frequency Monitor

45 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)
DOLD MH 9300 – Multifunction measuring relay

DOLD MH 9300 – Multifunction measuring relay

45 mm

Multifunction measuring relay

  • Min-, Max. value or window monitoring
  • Simultaneous monitoring of up to 9 different parameters
  • Simple configuration and fault diagnostic
  • Different fault indications
  • Large measuring range 3 AC 24 … 690 V
DOLD MH 9352/001 – Phase monitor

DOLD MH 9352/001 – Phase monitor

45 mm

Phase monitor

  • Space and cost saving due to 3 devices in one housing
  • Easy fault diagnostics by 3 separate DEL- Overvoltage- Undervoltage- Phase sequence and power failure
  • Differentiated error transfer to PLC possible, e.g. for logging of error type and time
  • Large measuring range 3 AC 85 … 550 V by built-in power supply with wide voltage range