Bürkert 8020 Manual de Instruções - Página 7

Procurar online ou descarregar pdf Manual de Instruções para Instrumentos de medição Bürkert 8020. Bürkert 8020 10 páginas. Flowmeter with paddle wheel

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(*) For the fittings:

• with external thread connections acc. to SMS 1145,

• with welding end connections acc. to SMS 3008

DIN 11866 series C / BS 4825-1 / ASME BPE,

DIN 11850 series 2 / DIN 11866 series A /

EN 10357 series A,

• with clamp connections acc. to SMS 3017,

BS 4825-3 / ASME BPE,

DIN 32676 series A

The device cannot be installed on the DN20 fittings listed

above.

Example:

• Specification:

- nominal flow: 10 m

/h,

- optimal flow velocity: 2...3 m/s

• Solution: intersection between flow rate and flow velocity

in the graph gives the appropriate pipe diameter, DN40

(or DN50 for the asterisked fittings).

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Wiring

DANGER

Risk of injury due to electrical discharge

▶ Shut down and isolate the electrical power source

before carrying out work on the system.

▶ Observe all applicable accident protection and safety

regulations for electrical equipment.

Protect the power supply

Protect the power supply with a correctly rated

fuse if it is not protected by default.

• Use a shielded cable with an operating tem-

perature limit higher than +80 °C.

• Use a high quality electrical power supply (filtered

and regulated).

• Do not install the cable near high voltage or high

frequency cables.

• If a closed installation cannot be avoided, maintain

a minimum distance of 30 cm.

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Installation of the 8020 on the S020

fitting

→

Insert nut 3 on fitting 5.

→

Insert snap ring 2 into

groove 4.

→

Check that seal 6 is

correctly inserted on the

flow sensor.

→

Slowly insert device 1

into the fitting.

If the mounting is correctly

done the device cannot be

turned around anymore.

→

Hand lock the assembly

with nut 3.

Fig. 1: Installation of the flowmeter on the S020 fitting

Assembling the female connector

→

Unscrew nut [1] of the cable gland.

→

Remove terminal block [3] from

housing [2].

→

Insert the cable into nut [1], through

seal [4], and into the cable gland and

finally through housing [2].

→

Connect the wires on terminal

block [3].

→

Position terminal block [3] in steps of

90° then put it back into housing [2],

pulling gently on the cable so that the

wires do not clutter the housing.

→

Tighten nut [1] of the cable gland.

→

Place seal [5] between the connector

and the fixed connector on the device

and then plug the 2508 connector into

the fixed connector.

→

Insert and then tighten screw [6] to

ensure tightness and correct electrical

contact.

Fig. 2: Assembling the female connector type 2508

(supplied)

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