Remote data transmission Meeting environmental responsibility with ®

Sewage transfer station: transmission of Transmission antenna with anti-vandalism Production plant next to measured values by means of a Bluetooth® protection to prevent unwanted tampering. the railway line. module.

“Textilveredlung an der Wiese” is a Process water is the most important At this discharge point, a number of values medium-sized company in the Weise element of production. About 1600 m3 per need to be measured. A paperless recorder River valley, on the southern edge day are needed. Despite the use of ecologi- creates an archive of flow rate, conductiv- of the Black Forest. The firm’s 160 cally sound materials, the waste water un- ity, temperature and pH test results. The people have many years of experience dergoes treatment and monitoring before challenge was that the discharge point is in the organic finishing of African being discharged to the municipal sewer located about 150 meters from the produc- damask, shirt inserts, bed and table system of the Wiese River association. tion plant along the Basel-Schopfheim linen for the hospitality industry, as railway line. well as shirt and blouse fabrics. Bluetooth® overcomes railway tracks

Linking the discharge point by cable over are incurred by the company. With the the railway line would be very costly. Pre- built-in Web server, configuration is easy viously, an employee had to go at set inter- and independent of specific software. vals to the transfer station to pick up the data disk and take it to the office in order to get the recorded information. Solutions for each case Electrician Werner Stiegeler thus looked for ways to optimize this process and, Measuring points are often difficult to working together with Endress+Hauser, reach with cables, or can even be mobile, found a low-cost alternative solution based such as the scraper bridge in a sewage on Bluetooth® wireless. treatment plant.

Industry-standard Bluetooth® access Not only the connection, but also points that are connected via Ethernet now analog and digital signal transmission can transmit the data by to the office. be easily and conveniently set up with Thus, outside distances up to 250 meters industrial wireless modules. Autonomous can be bridged. The security of the data is systems with solar panels and backup guaranteed through 128-bit encryption, batteries are also possible. and the delay through the spark gap is less than 15 ms. Production facility along the railway line Through the use of 2.4 GHz ISM bands the Bluetooth® Access Point operates in the tariff-free area, so that no other costs

Wireless solution for the sewage transfer station operation.

12.06/I.I. Instruments International

Endress+Hauser Instruments International AG Kaegenstrasse 2 4153 Reinach Switzerland Tel. +41 61 715 81 00 Fax +41 61 715 25 00 http://www.endress.com [email protected]

CS 042S/11/en/09.08 EH/INDD CS2