Abstract: First mounting ring and second mounting ring are fixed to wireless device case using fastening screws. First mounting ring and second mounting ring are fitted to measurement display section from above, and co-mounting bolt is passed through rings to fasten the rings together. This configuration allows a wireless device to be disposed independent of a meter, and the wireless device can be easily mounted to the meter.

Abstract: First mounting ring (340) and second mounting ring (360) are fixed to wireless device case (200) using fastening screws (347, 367). First mounting ring (340) and second mounting ring (360) are fitted to measurement display section (104) from above, and co-mounting bolt (301) is passed through rings (340, 360) to fasten the rings together. This configuration allows a wireless device to be disposed independent of a meter, and the wireless device can be easily mounted to the meter.

Abstract: A wireless data collection system 1a includes a wireless terminal 2 provided for an apparatus 1, a wireless base station 5 for communicating with the wireless terminal 2 through a wireless communication to collect data on the apparatus 1, and a central station apparatus 10 for communicating with the wireless base station 5 through a line 9. The wireless base station 5 includes a control section 6 for controlling an operation of the wireless base station 5, an information obtaining section 7 for obtaining change information for changing an operation of the control section 6 from outside the wireless base station 5, and a rewriting section 8 for rewriting control information defining the operation of the control section 6 based on the change information.