Bronkhorst IQ+FLOW (from 01-07-2013) Manuel d'utilisateur télécharger pdf (Page 7)

Bronkhorst High-Tech B.V.

IQ+FLOW 7

9.17.045

2 Starting up

2.1 Check properties

1. Check IQ

FLOW® properties

Before installing it is important to read the attached label and check:

Instrument type:

- gas (IQF) red label or

- pressure (IQP) yellow label

Flow rate

Fluid to be measured / controlled

Up- and downstream pressure

Input and output signals

Temperature

IQ(F/M) - Gas Flow IQP - Pressure

Output/Setpoint

A – 0…5 Vdc

B – 0…10 Vdc

F – 0…20 mA

G – 4…20 mA

FLOW® instruments are designed for dry, clean, inert and non-explosive gases. Do not use the instruments for

gases that do not belong to this category.

2.2 Rated pressure test inspection

The tested pressure is stated on the instrument with a red-coloured sticker.

Before installation, make sure that the test pressure is in accordance with

normal safety factors for your application.

If there is no Pressure Testing Sticker on the device or if the test pressure is

incorrect, the instrument should not be mounted in the process line and be

returned to the factory.

2.3 Check piping

For reliable measurement always make sure that the fluid stream is clean.

Use filters to ensure a clean, moisture- and oil- free gas stream.

Recommended pore-size: 7 µm. If back flow can occur, a downstream filter is

recommended too. Be aware of the pressure drop caused by using filters.

2.4 Install system

For IQ

FLOW® the upright position is preferred. When using an IQ

FLOW®

instrument in up- or downward position make sure to “zero” the instrument

prior to use (see section 2.10). Avoid installation in close proximity of

mechanic vibration and/or heat sources. The housing of the instrument is

according to class IP40, which means that the instrument is suitable for

indoor (dry) applications, like laboratories or well protected (OEM) housings.

Install the IQ

FLOW® instrument in the line, in accordance with the direction

of the FLOW arrow. The arrow for flow direction is indicated on the body of

the instrument. If applicable follow the guidelines of the supplier of the

fittings. Special types of fittings are available on request.

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Bronkhorst IQ+FLOW (from 01-07-2013) Manuel d'utilisateur Page 7

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