Contents 1 Preliminary note ���������������������������������������������������������������������������������������������������4 1�1 Symbols used ������������������������������������������������������������������������������������������������4 2 Safety instructions �����������������������������������������������������������������������������������������������4 3 Functions and features ����������������������������������������������������������������������������������������5 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 meter ��������������������������������6 4�4 Monitoring of temperatures ����������������������������������������������������������������������������6...
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9�3�3 Settings for meter reset controlled by the program ����������������������������16 9�3�4 Switch off the meter reset �������������������������������������������������������������������17 9�4 User settings (optional) ��������������������������������������������������������������������������������17 9�4�1 Determine the standard unit of measurement for volumetric flow ������17 9�4�2 Configuration of the standard display �������������������������������������������������17 9�4�3 Setting the damping of the measured values �������������������������������������17 9�4�4 Setting the error behaviour of OUT1 / OUT2 ��������������������������������������17 9�5 Service-Funktionen ��������������������������������������������������������������������������������������18...
1 Preliminary note 1.1 Symbols used ► Instruction > Reaction, result […] Designation of buttons, switches or indications → Cross-reference Important note Non-compliance can result in malfunctions or interference� 2 Safety instructions • Please read this document prior to installing the unit� Ensure that the product is suitable for your application without any restrictions�...
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�...
4.3 Consumed quantity monitoring (totalizer function) The unit has an internal quantity meter which continuously totals the volumetric flow� The sum corresponds to the current consumed quantity since the last reset� • The current meter count can be indicated� • In addition the value before the last reset is stored� This value can also be indicated�...
• Hysteresis function / normally closed (fig� 1): [OUx] = [Hnc]� First the set point (SPx) is set, then the reset point (rPx) at the requested distance� • Window function / normally open (fig� 2): [OUx] = [Fno]� • Window function / normally closed (fig� 2): [OUx] = [Fnc]� The width of the window can be set by means of the distance between SPx and rPx�...
Factory setting Measuring range scaled I [mA] I [mA] MEW = final value of the measuring range In the set measuring range the output signal is between 4 and 20 mA� It is also indicated: • Volumetric flow above the measuring range: output signal > 20 mA� • Flow rate below the measuring range: output signal between 3�6 and 4 mA�...
In case of turbulances at the inflow side additional baffled pipes (B) are recom- mended: changes to the pipe diameter B = 15 x pipe diameter 90° elbow B = 15 x pipe diameter two 90° elbows, one plane B = 20 x pipe diameter two 90°...
4: OUT1 4: OUT1 OUT1: switching signal or pulse sequence pnp OUT2: switching signal pnp or analogue signal (I) Core colours of ifm sockets: 1 = BN (brown), 2 = WH (white), 3 = BU (blue), 4 = BK (black)�...
7 Operating and display elements 1 2 3 4 5 6 7 8 Mode/Enter Set 1 to 8: Indicator LEDs - LED 1 = current volumetric flow in standard cubic feet/minute (scfm)� - LED 2 = current volumetric flow in standard cubic feet/hour (scfh)� - LED 3 = current consumed quantity since the last reset in standard cubic feet (scf)�...
8 Menu 8.1 Menu structure scfm scfh (scf)* °F scfm = [Mode/Enter] / = [Set] scf = current meter count in standard cubic feet (scf)* = stored meter count in standard cubic feet...
8.2 Explanation of the menu Maximum / minimum value for volumetric flow, at which OUT1 changes its SP1/rP1 switching status� ImPS Pulse value� ImPR Pulse repetition active (= pulse output) or not active (= function preset meter)� Output function for OUT1 (volumetric flow or consumed quantity): - Switching signal for limit values: hysteresis function or window function, normally open or normally closed�...
9 Parameter setting During parameter setting the unit remains in the operating mode� It continues its monitoring function with the existing parameters until the parameter setting has been completed� 9.1 General parameter setting 3 steps must be taken for each parameter set: Parameter selection ►...
• Change from menu level 1 to menu level 2 ► Press [Mode/Enter] until [EF] is displayed� Mode/EnterSet ► Press [Set] briefly� > The first parameter of the sub-menu Mode/EnterSet is displayed (here: [HI])� • Locking / unlocking The unit can be locked electronically to prevent unintentional wrong settings� ►...
9.2.2 Settings for limit value monitoring with OUT2 ► Select [OU2] and set the switching function: [Hno] = hysteresis function/normally open, [Hnc] = hysteresis function/normally closed, [Fno] = window function/normally open, [Fnc] = window function/normally closed� ► Select [SP2] and set the value at which the output switches� ►...
9.3.4 Switch off the meter reset ► Select [rTo] and set [OFF]� The meter is only reset after overflow (= factory setting)� 9.4 User settings (optional) 9.4.1 Determine the standard unit of measurement for volumetric flow ► Select [Uni] and set the unit of measurement: [SCFm] = flow rate in standard cubic feet / minute�...
9.5 Service-Funktionen 9.5.1 Reading the min./max. values for volumetric flow ► Select [HI] or [LO] and press [Set] briefly� [HI] = maximum value, [LO] = minimum value� Delete memory: ► Select [HI] or [LO]� ► Press [Set] and keep it pressed until [----] is displayed� ►...
9.6 Setting of the preset meter / pulse value (ImPS) 7 setting ranges are available: indication in steps of value 0 �4 0 0 ��� 9 �9 8 0 0�020 scf 0�400���9�980 scf 1 0 �0 0 ��� 9 9 �9 8 0�02 scf 10�00���99�98 scf 1 0 0 �0...
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► Press [Set] and keep it The flashing digit is increased, 9 is followed by 0 and the first pressed� new digit (left) becomes active� 8 �1 8 3 [Set] permanently pressed 8 �1 9 3 [Set] kept pressed 8 �1 0 3 If digit 1 is increased this way, the display changes to the next higher setting range (9 is followed by 10)�...
10 Operation Correct operation and compliance with the measurement accuracy can only be ensured if the environmental conditions specified in the Technical data (www�ifm� com) are adhered to� Ensure that the maximum pressure range, measuring range and permitted operating temperature are not exceeded�...
• From time to time check the measuring probes visually for build-up� • If necessary, clean them at regular intervals� To do so, use a suitable cleaning liquid (e�g� alcoholic solution)� • Avoid mechanical damage to the measuring probes� 11 Technical data and scale drawing Technical data and scale drawing at www.ifm.com → Data sheet search → Enter the article number�...
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