Fast, reliable and specific detection of hydrofluoric acid (HF) is indispensable in many manufacturing environments. The model HFT and HFM sensors detect HF by its etching action on an anodic Silicon dioxid film covering the sensor electrode. These electrochemical sensors are therefore specific to the presence of HF in the solution. Outline The HFT-sensor is designed as a safety-tool to detect hydrofluoric acid in liquids of unknown composition within a second. A bright red LED indicates the presence of HF. Specifications Sensitivity 1% - 50% HF Sensor lifetime > 1000 tests Power supply 2 x 3V Lithium Batt. Temperature range 0° - 50° Celsius Outline The HFM-meter is designed for single and continuous measurements of the concentration of hydrofluoric acid solutions. By simultaneous measurement of solution temperature and activity the computed value displayed is corrected for temperature. The HFM-meter is equipped with a touch screen display for simple menu selection. Specifications Concentration range 0.1% - 1 % HF (rel. Error 20%) 1% - 15 % HF (rel. Error 10%) 15% - 50 % HF (rel. Error 30%) Response time < 15 seconds Sensor lifetime > 10.000 single measurements Temperature range 0° - 50° Celsius For further information and ordering please contact: Dr. V. Lehmann FAX ++49 89 56826696 e-mail: vl@hf-acid-sensors.de Bau & Vertrieb elektronischer Messgeräte Geyerspergerstr. 53 80689 München V. Lehmann deems the data contained herein as factual, and the opinions expressed are those of qualified experts based on the results of tests conducted. The above data can not be used as a warranty provision or representation for which V. Lehmann assumes legal responsibility. The data are offered solely for consideration, investigation and verification. Any use of this information is subject to federal, state and local laws and regulations

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