DC current and voltage measurement
Good readability
Linear 90° scale (PQ)
Linear 240° scale (KPQ)
Exchangeable scale
High vibration and impact resistance
Terminal cover according to VGB 04 (option)
These instruments are intended for installation in high and low current systems where measurements of DC direct current and DC voltage with small intrinsic consumption are required. The core magnet measuring mechanism is largely insensitive to external field influences. The measuring mechanism is protected against mechanical shock and shaking stresses by spring mounting of the rotating coil.
The core magnet movement consists of a coil that is rotatably mounted so that it can rotate between a central permanent magnet with a soft iron ring surrounding it. The pointer is connected to the coil via the system axis. This system guarantees immunity to external magnetic fields. The scales can be supplied with any dimension designation and can be linear or logarithmic. A mechanically - or electrically suppressed zero point is also possible. (Live-Zero) The special device design allows a quick exchange of the scale. The units are suitable for connection to a transmitter with a DC standard output signal or an external shunt resistor with xmV voltage drop.
Accuracy class
1.5 (according to EN 60 051)
Housing
Polycarbonate self-extinguishing, according to UL 94 V-0
Protection class
Housing IP 52Terminals IP 00 (IP 20 for size 45)according to 60529: 1989
Mounting position
vertical ± 5°
Self-consumption
Ammeter 0.3...1.2 VAVoltmeter 1.5...4.0 VA
Climate class
2 according to VDE/VDI 3540
Temperature
Reference range +18 ... +28°CWorking range -25 ... +55°CStorage -40 ... +70°C
Relative humidity
? 80 % (without condensation)
Nominal values [µA]
40 ?A1) up to 600 ?A
Nominal values [mA]
1 mA up to 600 mA or 4-20 mA
Nominal values [A] - Current transformers
1 A up to 100 A 2), 60 mV, 5 mA
Current measurement via an ext. shunt resistor
60 mV or 150 mV
1) 40 and 60 ?A only for horizontal installation2) Measuring ranges greater than 60 A, (10 A PQ 45 / 25 A PQ 48) only with separate shunt, calibrated to 0.035 ? line resistance, at a meter current of up to 5 mA.
Nominal values [mV]
100 mV up to 600 mV
Nominal values [V]
1 V up to 600 V