(K)PQFe - Pointer Frequency Meter

Hauptbild - (K)PQFe - Pointer Frequency Meter
Austausch der Skala bei Schalttafeleinbaugeräten und Messgeräten zur Hutschienenmontage - (K)PQFe - Pointer Frequency Meter
Properties
  • low self-consumption

  • Elektronische Frequenzmessung

  • Exchangeable scale

  • Auxiliary voltage generation from the measuring circuit

  • Terminal cover according to VGB 04 (option)

Description

The instruments of type (K)PQFe are used for frequency measurement in AC or three-phase networks. The PQFe has a linear 90° scale, while the KPQFe has a linear 240° scale.

Variants

PQFe 48 48 x 48 mm for panel mounting
KPQFe 48 48 x 48 mm for panel mounting
PQFe 72 72 x 72 mm for panel mounting
KPQFe 72 72 x 72 mm for panel mounting
PQFe 96 96 x 96 mm for panel mounting
KPQFe 96 96 x 96 mm for panel mounting
PQFe 144 144 x 144 mm for panel mounting
KPQFe 144 144 x 144 mm for panel mounting

Application

The instruments of type (K)PQFe are designed for measuring the frequency in AC or three-phase networks in the range between 45 and 65 Hz. They are used in the monitoring panels of power stations, distribution and transformer stations, and wherever a technical frequency is to be measured in a system.

Technical Data

Technical Data

Accuracy class

45...55 Hz, 48...52 Hz, 55...65 Hz: 0.5
45...65 Hz: 1
(according to EN 60 051)

Housing

Polycarbonate self-extinguishing, according to UL 94 V-0

Protection class

Housing IP 52
Terminals IP 00 (IP 20 for size 45)
according to 60529: 1989

Mounting position

vertical ± 5°

Environmental Conditions

Climate class

2 according to VDE/VDI 3540

Temperature

Referenzbereich +18 … +28°C
Arbeitsbereich -25 … +55°C
Lagerung -40 … +70°C

Relative humidity

≤ 80 % (without condensation)

Measuring Ranges

Voltage values

100 V

110 V

230 V

400 V

500 V

Frequency values

45...55 Hz

55...65 Hz

48...52 Hz

45...65 Hz

Further measuring ranges available, intermediate values possible

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