Functions And Features; Function; 4�1 Processing Of The Measured Signals; 4�2 Volumetric Flow Monitoring - IFM efector 300 SD2001 Operating Instructions Manual

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3 Functions and features

The unit monitors the standard volume flow of operating compressed air�

It detects the 3 process categories volumetric flow, consumed quantity, medium

temperature�

Applications: compressed air equipment�

All data refer to standard volume flow according to DIN ISO 2533, i�e� volume flow

at 1013 hPa, 15°C and 0% relative air humidity�

The general operating conditions of compressed air equipment apply�

Pressure Equipment Directive (PED): Devices with a measuring section comply

with art� 3 sec� (3) of the Directive 97/23/EC and are designed and manufac-

tured for stable gases of the fluid group 2 in accordance with sound engineering

practice�

4.1 Processing of the measured signals

• The unit displays the current process values�

• It generates 2 output signals according to the parameter setting�

OUT1: 3 selection options �� parameter setting

switching signal for volumetric flow limit values �� (→ 9.2.1)

or pulse sequence for totalising meter �� (→ 9.3.1)

or switching signal for preset counter �� (→ 9.3.2)

OUT2: 2 selection options

switching signal for volumetric flow limit value �� (→ 9.2.2)

or analogue signal for volumetric flow �� (→ 9.2.3)

4.2 Volumetric flow monitoring

The flow rate is monitored by a calorimetric measuring system, the measured

signals by the electronics�

• 2 switching signals for volumetric flow limit values can be provided (output 1

and output 2). For the switching functions → 4.5.

• An analogue signal proportional to the volumetric flow (4��20 mA) can be

provided on output 2. For the analogue functions → 4.6.

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