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計測機器 Biuged BGD 285のPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。Biuged BGD 285 6 ページ。 Exact ph meter

reference electrode against different acidity of solution to be measured. The D.C. potential is fed to an

analog-to digital converter via a preamplifier for digital display of pH value. Similarly, in an application

that it is equipped with an appropriate ion selective electrode for a potential titration, it is need for

display of terminus potentials.

1. Measuring theory

Ⅳ. Structure

The meter make up of electro-unit, compound electrode and temperature sensor as Fig 2.

Ⅴ. Operation and Maintenance

1. Setting the meter

The meter must be set on no vibration table and have good earthing.

2. Preparation before using

2.1 Warm up the meter

a) Take out the compound electrode and temperature sensor. Preparing buffer solution, distilled water,

beaker and filter paper etc. The Q9 short circuit plug must be inserted into the input terminal of the

instrument before inserting the electrode into the instrument, to make the input terminal in the short

circuit and to protect the electric element.

b) Put the power key on "OFF". Insert the three-pin power plug into the AC power outlet.

c) Put on the power supply. Warm up the meter for 10 minutes before using it.

2.2 How to use the ATC and MTC function.

To link the temperature sensor, put the selection knob on auto position and the meter can work in ATC

mode. Now the MTC function will be invalidation.

Fig. 2 The structure of pHS-3B

Temperature adjusting knob

Slope adjusting knob

Setting knob

Selection knob

Power outlet

Power switch

Fuse seat

Connection

terminal

electrode

Measuring electrode outlet

10. Hole for electrode rod

11. Indicator light

12. Selection switch

13. Temperature sensor

for

reference