EUTECH INSTRUMENTS WP PCD 650 Manuál s instrukcemi stáhnout pdf (Strana 48)

Instruction Manual PCD 650

The meter automatically recognizes and calibrates to these standard pH

buffer values, which makes pH calibration faster and easier.

3.1.3 About Ion Calibration

The meter supports Ion calibration up to 8 points with minimum of 2-points.

The available 8-points are 0.001, 0.01, 0.1, 1, 10, 100, 1000 & 10000.

The meter guides your through the calibration process with on-screen

instructions and hints. If the second point and subsequent points are not

within the allowable calibration window (15mV/decade to 90mV/decade), the

meter does not accept the calibration.

When you try to re-calibrate the meter with ISE, the meter gives you 2

options:

 Clear the previous calibration (choose this if you wish to delete all

previously calibrated points and re-calibrate with a new type of Ion)

 Retain the previous calibration (choose this if you wish to retain

previously calibrated points and re-calibrate new points or overwrite

existing points with same type of Ion).

3.1.4 About Conductivity/Resistivity/TDS/Salinity Calibration

Before measuring conductivity, resistivity, TDS or salinity, you will need to

calibrate the meter with known conductivity, resistivity, TDS or salinity

values.

This meter is capable of performing either automatic or manual calibration.

In the automatic calibration mode, the meter automatically detects and

verifies the appropriate known calibration standards solutions being

calibrated before accepting these particular calibration standards as one of

its calibration values in a specific measurement range. This automatic

calibration mode frees you from cumbersome calibration procedure.

This meter can perform a single- or multi-point calibration. You will need to

set your meter to single- or multi-point calibration in the Setup mode for

conductivity, resistivity, TDS or salinity.

Refer to the setup section for the particular mode you will be measuring.

Instead of calibrating for TDS directly using TDS calibration standard

solutions, you can have TDS calibration by using the conductivity calibration

method and enter the appropriate TDS conversion factor into the meter.

For more information regarding TDS Conversion Factor determination,

please refer to page 106.

3.1.5 About DO(%) and DO (mg/L) Calibration

The calibration of % Saturation of DO will linearly affect the measurement for

DO in mg/L. The amount of oxygen dissolved in water will depend on its

temperature, atmospheric pressure and its salinity. It is therefore very

important that the temperature is calibrated if necessary prior to the DO

calibration.

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EUTECH INSTRUMENTS WP PCD 650 Manuál s instrukcemi Strana 48