Yokogawa ADMAG AXR Uživatelský manuál stáhnout pdf (Strana 15)

<3. INSTALLATION>

3-3

IM 01E30D01-01EN

• Mounting orientation

IMPORTANT

If electrodes are perpendicular to the ground, air

bubbles near the top or precipitates at the bottom

may cause measurement errors. Ensure that the

converterofanintegralowmeteraremounted

above the piping to prevent water from entering

them.

Correct

Incorrect

Electrode

Air bubble

Precipitate

Electrode

Incorrect

Water can

seep into

the terminal

box.

F0306.ai

Figure 3.1.6 Mounting Orientation

(10) Application

IMPORTANT

• Forauidcontaininghighconcentration

slurries or hard solids (such as earth and

sand,metalpowder,andber),contactof

the solids on the electrode surface will make

theoutputuctuate.Therefore,two-wire

magneticowmetersarenotsuitablefor

measuringsuchuids.Itisrecommendedto

usetheAXFfour-wiremagneticowmeter.

• In the vicinity of an electrolysis bath, strong

straycurrentmayowintheuid.Itis

recommendedtousetheAXFfour-wire

magneticowmeterinsuchanapplication.

3.2 Handling Precautions

WARNING

Themagneticowmeterisaheavyinstrument.

Be careful that no damage is caused to

personnel through accidentally dropping it, or

by exerting excessive force on the magnetic

owmeter.Whenmovingthemagnetic

owmeter,alwaysuseatrolleyandhaveatleast

two people carry it.

3.2.1 General Precautions

(1) Precaution during Transportation

Themagneticowmeterispackedtightly.When

it is unpacked, pay attention to prevent damaging

heowmeter.Topreventaccidentswhileitisbeing

transported to the installing location, transport it to

the site in its original packing.

CAUTION

Inordertoliftamagneticowmeterthatistted

with eyebolts, proceed as in Figure 3.2.1. Never

liftitusingabarpassedthroughtheowtubeas

this damages the liner severely.

(2) Avoid Shocks from Impact

CAUTION

Careshouldbetakennottodroptheowmeter

or expose it to excessive shock. In particular, be

carefulnottosubjecttheangesurfacetoshock.

This may lead to liner damage which will result in

inaccurate readings.

(3) Flange Protection Covers

IMPORTANT

Keep the protective covering (i.e. the corrugated

cardboard or other cushioning material) in place

overtheangeexceptwhenmountingthe

owmetertothepipe.

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