FQ - Reed Frequency Meter

Austausch der Skala - Dial Exchange


  • For measurement frequencies of AC supply
  • Range from 45 Hz to 65 Hz
  • Good read-out survey on larger distance
  • Minimum effect of temperature
  • Low power consumption


The vibrating-reed frequency meter is one of the simplest devices for indicating the frequency of an AC source. They are usually in-circuit meters, used on power panels to monitor the frequency of AC. Two-systems reed frequency meters with two rows of reeds and two separate AC voltages can be used to synchronise two generators in parallel.

Technical Data

Accuracy Class: 0,5
Housing: Polycarbonat uninflammable, according to UL 94 V-0

Housing IP 52
according to 60529: 1989

Position: vertical ± 5°
Ambient Conditions
Climatic Class: 2 according to VDE/VDI 3540
Temperature: Reference range of operation+18 … +28°C
Nominal range of operation-25 … +55°C
Storing -40 … +70°C
Humidity: ≤ 80 % (without condensing)

Ordering Data

For ordering it is necessary to specify:

  • Instrument type
  • Measuring range and scale
  • Number of reeds

Ordering example:

  • FQ 96; 55 ... 65 Hz; 110 V; 21 Reeds
  • FQD 96; 2 x 47 ... 53 Hz; 230V; 2 x 13 Reeds

FQ 72 FQ 96 FQ 144 FQ72 FFQ96 FQ144 FQD 96 FQD 144 FQD96 FQD144



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