02/16/2011 | Editor: Jörg Kempf
Wago is expending its Series of Jumpflex Transducers to include both universal frequency and current transducers. The 857-500 Frequency Transducer with 0.1–120 kHz frequency range is ideal for all standard frequencies. The transducer converts signals from, e.g., Namur, NPN or PNP sensors into analog standard signals. The measurement method switches between pulse time and gate time. The 857-550 Current Transducer measures DC and AC currents ranging from 0 to 1 A (AC/DC) and from 0 to 5 A (AC/DC). The signals can have any type of form, including both sinusoidal and non-sinusoidal signals. The following types of measurement are supported: arithmetic mean value, true RMS measurement, signal mapping or absolute value measurement. On the output side, the current transducer converts the current into an analog standard signal. An FDT/DTM programmable digital output is also available for limit value signalization. For both devices, the analog standard signal can be set to 0-20 mA, 4-20 mA, 0-10 mA, 2-10 mA, 0-10 V, 2-10 V, 0-5 V or 1-5 V. The 6 mm-wide devices are configurable either via FDT/DTM configuration tool or via integrated, easily accessible DIP switches. Measurement range switching is calibrated. The modules are supplied with 24 VDC, which can be efficiently commoned using lateral push-in type jumper bars.
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