User manual SEWERIN SNOOPER MINI H

[. . . ] Hermann Sewerin GmbH is not liable for damage caused by failure to comply with these notes. The guarantee and liability conditions of the sales and delivery conditions of Hermann Sewerin GmbH are not extended by the following notes. z The product may only be taken into operation after reading thoroughly the accompanying operating instructions. [. . . ] of the heating period Unit or status message Loudspeaker icon (crossed out) z audible signal is switched off Battery icon z currently available capacity of the batteries (disposable or rechargeable); the number of bars indicates the capacity level Abbreviations: ADJ Adjust APF Automatic power-off BAT Battery CAL Calibrate CWT Calibration waiting time ERR Error HT Heating-up PPM Unit of measurement (ppm) VOL Unit of measurement (vol. %) ZRO Setting the zero point 33 English English 4. 2 Operating modes The device can be used in two different modes: z Measurement > see chapter 5 z Adjustment > see chapter 6 4. 3 Measuring range The device operates with a single measuring range, but two different units of measurement (parts per million [ppm], percent by volume [vol. %]). The device automatically switches between the different units of measurement. Conversion: 10, 000 ppm = 1 vol. % Indication of measurement values in ppm ppm percent by volume Limits 0 ­ 100 ppm > 100 ­ 2, 000 ppm CH4, C3H8: > 2, 000 ­ 22, 000 ppm (0. 2 ­ 2. 2 vol. %) > 2, 000 ­ 10, 000 ppm (0. 2 ­ 1. 0 vol. %) H 2: Resolution 5 ppm 50 ppm 0. 2 vol. % 34 4. 4 Automatic power-off SNOOPER mini switches itself off automatically, z assoonasthebatterychargeisnolongersufficient. (BAT will be indicated briefly on the display. ) The automatic power-off may also occur immediately after switching on the device!(APF will be indicated briefly on the display. ) 4. 5 Display illumination The device automatically switches on the display illumination: z if a key is pressed (duration of illumination 20 s), z if the gas concentration is higher than 25 ppm. 35 English English 5 5. 1 Measurement mode How to start the measurement mode Note: The device must always be switched on in an unpolluted environment (e. Device is switched on, audible signal sounds Display flashes, time bar runs out Why? Indication on the display Heating period, approx. 20 s 3. Device ready for measuring Note: After switching on, the device needs one minute to recognise whether it is operated with disposable or rechargeable batteries. 37 English English 5. 2 Increased gas concentration An automatic audio signal makes the user always aware of an increased gas concentration. Audible signal of the device (loudspeaker key) z switched on: the interval signal gradually changes to a steady tone z switched off: steady tone sounds as soon as the device measures a value higher than 1 vol. % 38 5. 3 Setting the zero point ­ when and how?When working with the SNOOPER mini, the zero point may start to drift (e. The zero point is reset. 5. 4 Verifying the indication accuracy ­ when and how?According to DVGW regulations (DVGW: German technical and scientific association for gas and water), it is required to check the indication accuracy in intervals ranging from every week to every six months ­ depending on the frequency of usage and experience. Gas type of the device Methane Propane Hydrogen Test gas 1 vol. % CH4 1 vol. % C3H8 Permissible range 0. 8 ­ 1. 4 vol. % 1, 000 ppm H2 800 ­ 1, 400 ppm 39 z The device must be ready for measuring (see chapter 5. 1). z Compare the deviations indicated by the device with the permissible values in the table. If the values are outside the permissible range, you need to perform an adjustment (see chapter 6). English English 6 Adjustment The device must be adjusted if the deviation of the indication accuracy is outside the permissible range (see chapter 5. 4). 6. 1 Tools and requirements Required tools: z Suitable test set (e. SPE HG, SPE-Y) z Test head z Test gas, depending on the type of gas of the relevant device (see table in chapter 5. 4) You can find all information on how to connect the test set to the device in the operating instructions of the test set. [. . . ] z Clean the sensor cap thoroughly with a commercially available detergent. The filter will be pressed into the correct position. 7. 3 Replacingthefilter The sensor cap contains a filter. z Push the soiled filter from above out of the sensor cap, using a suitable tool (e. [. . . ]