EUTECH INSTRUMENTS WP PCD 650 Bedienerhandbuch PDF herunterladen (Seite 25)

Instruction Manual PCD 650

2.2 Taking Measurement

2.2.1 Prepare the meter for measurement

Before you start measuring,

 Make sure you have connected a suitable probe (pH/OPR/ISE),

Conductivity probe and DO with in-built ATC to the meter.

 Make sure the probes are in good working condition & clean. If required,

clean (pH/OPR/ISE) probe with clean water, conductivity and DO probe

with de-ionized water to remove impurities. For more information on

probe’s conditioning refer page 7.

 Make sure batteries have been installed or the DC adapter is connected to

the meter.

 Perform calibration if you change to a new probe.

2.2.2 Taking a reading

1. Press ON (F4) key to switch on the meter. The ON (F4) key has to be kept

pressed until the display comes up.

2. Make sure you are in the required measurement mode. Press MODE (F3) to

switch between modes.

3. Dip the appropriate probe with built in ATC probe into the sample solution.

4. The LCD shows ‘Stable’ indicator if this feature is enabled in setup. (See

page 75).

5. Note the reading.

2.2.3 Stable reading indicator

You can configure the meter so that LCD displays a ‘Stable’ indicator when

the reading does not vary for 2 consecutive seconds. The amount of

variations allowed can be set as ‘Slow’, ‘Medium’ or ‘Fast’. (See page 75)

2.2.4 Holding a reading

In some situations, you may want to freeze (hold) the measured reading in

the LCD for a delayed observation. You can hold a reading in two different

ways.

Manual Hold – Allows you to hold the reading by pressing HOLD (F1) key at

any time you want. When you hold a reading, the ‘HOLD’ indicator starts

flashing. The readings (including temperature reading) will be held until you

press any other key again.

Auto-Hold –The meter automatically holds the reading if the reading is

‘Stable’ for 5 consecutive seconds. This feature needs to be enabled in the

setup (See page 75). Press HOLD (F1) key to release the reading.

Note: When dipping the probe into sample, the sensor or the glass bulb of the

probe must be completely immersed into the sample. Stir the probe gently in the

sample to create a homogeneous sample. Allow time for the reading to stabilize.

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 119 120

Keine Kommentare

EUTECH INSTRUMENTS WP PCD 650 Bedienerhandbuch Seite 25