DVC 1000 series sensors are panel-mount and measure 29 x 51 x 89mm – 131.6cm3– and 57g. A DIN rail mounting adaptor is an option.
“LEM developed the DVC 1000 to be compliant with the International Railway Industry Standards [IRIS],” said the company. “The series uses an isolating amplifier with a safety insulation voltage of 4.2kV. The use of an isolating amplifier offers significant space savings over other sensors of similar capacity, which use galvanic insulation.”Output is +/-30mA (DVC 1000) or +/-10V (DVC 1000-B) at +/-1500V peak. DVC 1000-UI is unipolar (0 to 1kVdc) with a 4-20mA current output. Measurement -3dB frequency is 35kHz. Response is in 12 to 17 µs at 90% of nominal voltage.
All models are specified to be +/-1% accurate at +25°C and +/-1.7% over -40°C to +85°C.
No primary power supply is needed. On the secondary side, consumption is 12 to 22 mA from dual +/-15 to +/-24V rails for DVC 1000 and DVC 1000-B models, or a single +15 to +24V for the unipolar DVC 1000-UI.
Materials comply with “all relevant fire and smoke requirements, EN 45545, mandatory in railway applications”, said LEM. “They are CE marked and are supplied with a five-year warranty, as are all LEM sensors.”
Devices are designed for
EN 50155: 2017
EN 50121-3-2: 2016
IEC 62497-1: 2018
IEC 61000-6-2: 2016
IEC 61000-6-4: 2016
IEC 61800-3: 2005
IEC 61010-1: 2010
IEC 61800-5-1: 2007
IEC 62109-1: 2010
UL 508: 2018
Expected applications include dc links in railway rolling stock and sub-stations, as well as the outputs of inverters, the input voltage of four-quadrant converters or the batteries of light rail vehicles. Away from railways, use is foreseen in DC power supply monitoring, electric vehicle chargers and battery storage.
Source: Ths news is taken from www.electronicsweekly.com
