Biuged BGD 285 Instruction Manual - Page 2

Browse online or download pdf Instruction Manual for Measuring Instruments Biuged BGD 285. Biuged BGD 285 6 pages. Exact ph meter

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Ⅰ. General

Read this manual thoroughly before use please.

The Model BGD 285 pH meter is a

-ion) or MTC (manual temperature compensation). It can measure the temperature of the medium to be

measured and display the values of temperature, pH and mili-voltage It is suitable to measure the pH

value of aqueous solution and the potentials of electrodes in laboratories of research institutes,

factories and mines. If it is equipped with an appropriate ion selective electrode, it can be used as a

terminus display device for potential titration.

Ⅱ. Main Specification

1. After having been powered on and warmed up for thirty minutes, the instrument can be used

continuously under the following conditions:

(1) Ambient temperature：0～+40℃；

(2) Relative humidity：less than 85%

(3) Power supply：110V AC±11V AC，60Hz±1Hz

Main parameters:

(1) Measuring range：pH：0～14.00pH

(2) Error of electro-unit：pH：0.01pH

(3) Meter accuracy： pH：±0.01pH±1 digit

(4) Input impedance：≥10

(5) Zero drift：≤0.01pH±1 digit/3h

(6) Error of electro-unit after temperature compensation：±0.01pH

(7) Overall dimension： 280×200×95 mm

(8) Weight：1 kg

(9) Power consumption：1.5 W

Ⅲ. Principle of Operation

The Model BGD 285 pH meter is based on a D.C. potential generated by a pH electrode and a

digit decimal pH meter with ATC (auto temperature compensat

or 220V AC±11V AC，50Hz±1Hz

mV：0～±1999mV（automatic polarity display）

T：0～100℃

mV：±0.1%F.S

T：±0.5℃±1 digit

Ω