Contents 1 Preliminary note ���������������������������������������������������������������������������������������������������4 1�1 Symbols used ������������������������������������������������������������������������������������������������4 2 Safety instructions �����������������������������������������������������������������������������������������������4 3 Functions and features ����������������������������������������������������������������������������������������4 4 Function ���������������������������������������������������������������������������������������������������������������5 4�1 Processing of the measured signals ��������������������������������������������������������������5 4�2 Volumetric flow monitoring �����������������������������������������������������������������������������5 4�3 Consumed quantity monitoring (totalizer function) ����������������������������������������6 4�3�1 Consumed quantity monitoring with pulse output ���������������������������������6 4�3�2 Consumed quantity monitoring with preset counter �����������������������������6 4�4 Temperature monitoring ���������������������������������������������������������������������������������7...
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9�2 General parameter setting ���������������������������������������������������������������������������16 9�3 Settings for volumetric flow monitoring ��������������������������������������������������������18 9�3�1 Settings for limit value monitoring with OUT1 �������������������������������������18 9�3�2 Settings for limit value monitoring with OUT2 �������������������������������������18 9�3�3 Setting the analogue value for volumetric flow �����������������������������������19 9�4 Settings for consumed quantity monitoring �������������������������������������������������19 9�4�1 Settings for quantity monitoring via pulse output ��������������������������������19 9�4�2 Settings for quantity monitoring via the preset counter ����������������������19 9�4�3 Settings for program-controlled counter reset ������������������������������������19...
1 Preliminary note 1.1 Symbols used ► Instruction > Reaction, result […] Designation of pushbuttons, buttons or indications → Cross-reference Important note Non-compliance can result in malfunction or interference� Information Supplementary note� 2 Safety instructions • Please read this document prior to set-up of the unit� Ensure that the product is suitable for your application without any restrictions�...
It detects the 4 process categories flow velocity, volumetric flow quantity, con- sumed quantity, medium temperature� • Applications: compressed air systems in industrial use� • All indications apply for standard volume flow to DIN ISO 2533, i�e� volume flow at 1013 hPa, 15 °C and 0 % relative air humidity� • The unit can be set to different standard conditions (→ 9.5.5 and 9.5.6).
• 2 switching signals for volumetric flow limit values can be provided (output 1 and output 2). Switching functions → 4.5. • An analogue signal which is proportional to the volumetric flow (4���20 mA) can be provided on output 2. Analogue functions → 4.6. 4.3 Consumed quantity monitoring (totalizer function) The unit has an internal quantity meter which continuously totals the volumetric flow quantity�...
- If the quantity x is reached during the time t, output 1 switches and remains switched until the meter is reset via the digital input or [rTo] = [rED�T]� 4.4 Temperature monitoring • A switching signal for temperature limit values can be provided on output 2� Switching functions → 4.5.
4.5.2 Window function Normally open: [OUx] = [Fno] Normally closed: [OUx] = [Fnc] The width of the window can be set by means of the difference between SPx and rPx� SPx = upper value rPx = lower value Example of volumetric flow monitoring FE = window 4.6 Volumetric flow or temperature monitoring / analogue function...
7: Error message [OL] is displayed (= overload) 8: Analogue end point (AEP): determines at which measured value the output signal is 20 mA� 9: Curve of the analogue signal with shifted analogue start point 10: Curve of the analogue signal at factory setting 11: Analogue start point (ASP): determines at which measured value the output signal is 4 mA�...
5 Installation The rules and regulations for the installation and operation of compressed air equipment must be observed� 5.1 Installation location • Behind the cold dryer / near the load� • If compressed air is fed into the main pipe through parallel pipes, the unit should be mounted in the main pipe�...
5.3 Installation position • Permitted installation positions: - pipe vertical, any unit position (fig� 1, 2); - pipe horizontal, unit vertical (fig� 3, 4), unit on side, pipe left (fig� 5)� • Avoid the installation position in fig� 6 (unit on side, pipe right)� If the flow rate is low, the specified measurement accuracy cannot be adhered to�...
6 Electrical connection The unit must be connected by a qualified electrician� The national and international regulations for the installation of electrical equipment must be adhered to� Voltage supply according to EN 50178, SELV, PELV� ► Disconnect power� ► Connect the unit as follows: BK: black BN: brown OUT2...
7 Operating and display elements 1 2 3 4 5 6 7 8 Mode/Enter Set 1 to 8: Indicator LEDs - LED 1 (green) = current volumetric flow in standard litres / minute (Nl/min)� - LED 2 (green) =current volumetric flow in standard cubic metres / hour (Nm /h)�...
8 Menu 8.1 Menu structure Nl/min Nm/s °C = [Mode/Enter] / = [Set] • • Nm = current meter reading in Nm / Nm * = stored meter reading in Nm • The parameter values displayed in the form of numbers are factory settings or random examples�...
8.2 Explanation of the menu SP1/rP1 Upper / lower limit value for volumetric flow� ImPS Pulse value� Pulse repetition active (= pulse output) or not active ImPR (= preset counter function)� Output function for OUT1 (volumetric flow or consumed quantity): - Switching signal for the limit values: hysteresis function or window function, either normally open or normally closed�...
9 Parameter setting Parameters can be set before installation and set-up of the unit or during opera- tion� If you change parameters during operation, this will influence the function� ► Ensure that there will be no malfunctions in your plant� During parameter setting the unit remains in the operating mode�...
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Setting of the parameter value ► Press [Set] and keep it pressed� > Current setting value of the param- Mode/EnterSet eter flashes for 5 s� > After 5 s: setting value is changed: incrementally by pressing the button once or continuously by keeping the button pressed�...
► Make sure that the unit is in the normal operating mode� ► Press [Mode/Enter] + [Set] for 10 s� Mode/EnterSet > [Loc] is displayed� During operation: [LOC] is briefly displayed if you try to change parameter values� For unlocking: ►...
9.3.3 Setting the analogue value for volumetric flow ► Select [Uni] and set the unit of measurement (→ 9.5.1). ► Select [SEL2] and set [FLOW]� ► Select [OU2] and set the function� - [I] = current signal proportional to volumetric flow (4…20 mA) ► Select [ASP] and set the value at which the minimum value is provided� ►...
9.4.5 Counter reset using an external signal ► Select [OU2] and [InD]� ► Select [Din2] and set the reset signal� - [HIGH] = reset for high signal - [LOW] = reset for low signal - [+EDG] = reset for rising edge - [-EDG] = reset for falling edge LED 7 (→ 7 Operating and display elements) indicates the input status also with an active external reset�...
9.6.2 Configuration of the standard display ► Select [SELd] and determine the standard measuring unit� - [FLOW] = the current volumetric flow value in the standard unit of measurement is displayed - [TOTL] = the current meter reading in Nm or 1000 Nm is displayed�...
9.6.6 Setting of the standard temperature to which the measured and dis- play values for volumetric flow refer ► Select [rEF�T] and set the requested standard temperature� Setting range: 0���25 °C in steps of 1 °C� 9.6.7 Setting of the low flow cut-off ►...
► Wait 3 s (do The next digit on the right flashes (= becomes active)� not press any 8 1 2� 3 button)� No button pressed; after 3 s 8 1 2� 3 after 3 s 8 1 2� 3 after 3 s 8 1 2�...
10.1 Reading of set parameters ► Press [Mode/Enter] until the requested parameter is displayed� ► Press [Set] briefly� > The unit displays the corresponding parameter value� After about 15 s (from menu level 1) or 30 s (from menu level 2) it again displays the parameter, then it returns to the Run mode�...
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