Wireless DA System from Wilkerson Instrument
Wilkerson Instrument Co.
August 13, 2008
Wilkerson Instrument Co. Inc., Lakeland, FL, offers the DR9011/DR9021 wireless point-to-point system. The DR9011 wireless transmitter provides analog and contact closure data transmission to the companion DR9021 where the data is recovered as two 4–20 mA outputs. Switch data are provided by optically isolated NPN transistor outputs. Available analog inputs include dual-channel DC voltage or current, single-channel RTD, or strain gauge bridge inputs. The bridge version provides 10 VDC excitation for up to four 330 ohm bridges. For the single-channel inputs the two 4–20 mA outputs are proportional to the single input. The system is offered in three radio frequencies, two in the 915 MHz ISM band and one in the 2.4 GHz band.
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