Unicode character data is received for transcoding. The method and device of the present invention use the standard communications protocol to transmit the downloaded code to the field device and store the downloaded code in the field device while the device is enabled to perform process control. The conductive member is adjacent to the back electrode layer without contacting therewith. Reference elements are provided at the tubes of the two housings such that they co-operate in the assembled state for defining the positions of the two tubes with respect to one another. The central portion includes an elongated groove extending along the base opposed from the central bearing surface. In some embodiments, the stochastic variable may represent the price of one or more financial instruments.