5
UK
For the scope of validity cULus: The device shall be supplied from an isolating
transformer having a secondary Listed fuse rated as noted in the following table�
Overcurrent protection
Control-circuit wire size
Maximum protective device rating
Ampere
AWG
(mm
2
)
26
(0�13)
1
24
(0�20)
2
22
(0�32)
3
20
(0�52)
5
18
(0�82)
7
16
(1�3)
10
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 Function
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)
