Dinel ULM-53 series Manuel - Sayfa 4

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Sayfayı Yazdır

Area classification

ULM–53N–_ _–_

ULM–53Xi–01–I

ULM–53Xi–02–I

ULM–53Xi–06–I

ULM–53Xi–10–I

ULM–53Xi–20–I

Installation

Level meter is installed into the upper lid of the tank (vessel), using a fixing nut or a flange.

If installed in an open channel (sumps, reservoirs, etc.), install the level meter as closest as you can to the maximum level expected.

The front of the level meter must run in parallel to the measured level.

Emitted acoustic signal must not be affected by near objects (stiffeners, ladders, mixers, unevenness, etc.), stream of filling, air

flow, etc.

Foam on the level absorbs the acoustic wave reflection which might cause malfunction of the level meter. If possible select the

location where the foaming is as low as possible. Protect the level meter against direct sunlight.

In the case of uncertainty we recommend to consult the application with the producer.

Mounting recommendation

Recommended installation

ULM–53– 01; 02; 10

ULM–53–06

ULM–53–20

Installation distance from the tank wall

(according to EN 60079-10 and EN 60079-14)

Explosive proof – suitable for explosive areas (combustible gases or vapours)

c - Maximum reach

of the level meter

d - Minimum distance

from tank wall

d > 1/12 c

(min. 200 mm)

d > 1/8 c

(min. 200 mm)

d > 1/10 c

(min. 200 mm)

Performance for non-explosive areas

II 1/2G Ex ia IIB T5 Ga/Gb with isolating repeater (IRU–420)

the whole level meter – zone 1, front head part – zone 0

II 1/2G Ex ia IIA T5 Ga/Gb with isolating repeater (IRU–420)

the whole level meter – zone 1, front head part – zone 0

II 2G Ex ia IIA T5 Gb with isolating repeater (IRU–420)

the whole level meter – zone 1

ULM–53–01; 02; 06

ULM–53–10

ULM–53–20

a - neck height

b - neck width

m - dead zone

Possible installation through the neck

Level meter installation outside the influence of filling circulation

a < 3 b

b > 100 mm

a < 1,5 b

b > 100 mm

a < 1,5 b

b > 150 mm

ULM-53-dat-4.8