Gebrauchsanleitung Digital-Konduktometer CG 855 Operating Instructions Digital Conductometer CG 855 Mode d'emploi Conductomètre digital CG 855 Manual de instrucciones Conductivimetro digital CG 855
Gebrauchsanleitung ............................................................................................................. Seite 1 ....... 8 Wichtige Hinweise: Die Gebrauchsanleitung vor der ersten Inbetriebnahme des Digital-Konduktometers CG 855 bitte sorgfältig lesen und beachten. Aus Sicherheitsgründen darf das Digital-Konduktometer CG 855 ausschließlich nur für die in dieser Gebrauchsanleitung beschriebenen Zwecke eingesetzt werden.
9 Operating Instructions CONTENTS Digital Conductometer CG 855 PAGE 1 Commencing operation .......................................................................................... 12 2 Measuring the electrical conductivity ...................................................................... 12 3 Measuring ohmic resistors...................................................................................... 13 4 Making temperature measurements ..................................................
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12 The Digital Conductometer CG 855 can make – conductivity measurements ranging from 0,1 S · cm-1 ... 19,99 mS · cm-1 and – temperature measurement from – 199,9 ... 199,9 °C. This unit also incorporates a device for coating the measuring cells with platinum black. 1 Commencing operation Important: Before connecting-up and switching-on, make sure that the nominal operating voltage of the unit agrees with the actual mains voltage. The nominal operating voltage is stated on the type specification plate.
13 For manual temperature compensation, turn the function switch "FUNKTION" to the setting "man" and set the "T-comp" control knob (Fig. 1, Pos. 3) to the actual temperature of the sample solution. A temperature sensor is not required in the function switch "FUNKTION" setting "man". For automatic temperature compensation, turn the function switch "FUNKTION" to the setting "auto" (with a temperature sensor in the combicell or with a separate temperature sensor Pt 1000 connected).
14 5 Chart recorder output The Digital Conductometer CG 855 has a chart recorder output (see Fig. 2, Pos. 3) with a source resistance of Ri = 2 k , for connecting a servo-type chart recorder whose input is floating with respect to ground. The available chart recorder output voltage is 1 mV/digit of the liquid crystal display for conductivity measurements. This output voltage corresponds to the "abs" function in all conductivity measuring ranges.
15 8 Warnings and safety instructions For safety and functional reasons, the Digital Conductometer CG 855 must basically be opened by authorized persons only; e.g. work at the electric appliance must only be carried out by trained specialists. With unauthorized operation of the Digital Conductometer CG 855 as well as careless or deliberate damaging, the warranty is no longer valid. The Digital Conductometer CG 855 conforms to Protection Class I.
16 9 Technical data CE mark: according to the Council Directive 89/336/EMC (eletromagnetic compatibility); generic emission according to standard EN 50 081, Part 1 generic immunity according to standard EN 50 082, Part 2 according to the Council Directive 73/23/EMC (low-voltage directive) last modified by the Council Directive 93/68/ testing basis EN 60 010, Part 1 Country of origin: Made in Germany Display: 3 1/2 digit seven segment LCD display character height = 18 mm Measuring ranges (1 digit =): (k
Typ / Type / Type / Tipo: Serien Nr. / Serial no. / No. de série / N° de serie: Bescheinigung des Herstellers Wir bestätigen, daß das oben genannte Gerät gemäß DIN EN ISO 9001, Absatz 4.10.4 ”Endprüfung” geprüft wurde und daß die festgelegte Qualitätsanforderung an das Produkt erfüllt wird. Supplier’s Certificate We certify that the equipment EN ISO 9001, part 4.10.4 ”Final inspection and testing” and that the specified requirements for the product are met.
