9�4�9 Selection of the medium to be monitored �������������������������������������������19 9�5 Service functions �����������������������������������������������������������������������������������������19 9�5�1 Reading the min�/max� values for volumetric flow ������������������������������19 9�5�2 Reset all parameters to the factory setting �����������������������������������������19 10 Operation ���������������������������������������������������������������������������������������������������������20 10�1 Read the set parameters ���������������������������������������������������������������������������20 10�2 Changing the display unit in the Run mode �����������������������������������������������20 10�3 Error indication ������������������������������������������������������������������������������������������21 10�4 General operating conditions ���������������������������������������������������������������������21...
3 Functions and features The unit monitors liquids� It detects the 2 process categories volumetric flow and medium temperature� Applications: • Water • Glycol solutions • Oils (viscosity: ≤ 68 mm²/s at 40°C) Selection of the medium to be monitored → 9�4�9� 4 ...
• 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� SPx = maximum value, rPx = minimum value� HY = hysteresis; FE = window; examples for volumetric flow monitoring When set to the window function the set and reset points have a fixed hysteresis of 0�25 % of the final value of the measuring range�...
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Example: dSt for hysteresis function 0,5% 1 Volumetric flow quantity Q reaches 0�5% of VMR → dSt starts, output becomes active� 2 dSt elapsed, Q reached SP → output remains active� 3 Q below SP, but above rP → output remains active� 4 Q below rP →...
5 Installation 5.1 Installation location ► Install the unit in that section of the plant where the medium flows under pres- sure� This avoids disturbance by air bubbles� ► Install the unit so that the measuring pipe is always completely filled� ►...
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► Avoid the following installation locations: • Directly in front of a falling pipe� • In a falling pipe� FF = flow direction • At the highest point of the pipe system� • Directly in front of the spout of a pipe� F = flow direction •...
5.2 Installation in pipes The unit is installed in the pipe using adapters� Adapters have to be ordered sepa- rately as accessories� Order no� E40179: 2 adapters for R½ pipes, stainless steel + 2 seals� Order no� E40180: 2 adapters for R¾ pipes, stainless steel + 2 seals� Order no�...
5.3 Protection against high medium temperatures For medium temperatures over 50 °C (122 °F) some parts of the housing can heat up to over 65 °C (140 °F)� ► Protect the housing against contact with flammable substances and unintentional contact� 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�...
7 Operating and display elements 1 2 3 4 5 6 7 8 Mode /Enter 1 to 8: Indicator LEDs -LED 1 = current volumetric flow in litres/minute� -LED 2 = current volumetric flow in cubic metres/hour� -LED 3 = current volumetric flow in gallons per minute (gpm)� -LED 4 = current volumetric flow in gallons per hour (gph)�...
8.2 Explanation of the menu SP1/rP1 Maximum / minimum value for volumetric flow� Output function for OUT1 (volumetric flow): - Switching signal for limit values: hysteresis function or window function, normally open or normally closed� Output function for OUT2 (volumetric flow or temperature): - 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 ►...
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• Change from menu level 1 to menu level 2 ► Press [Mode/Enter] until [EF] is displayed� Mode /Enter ► Press [Set] briefly� > The first parameter of the sub-menu is displayed (here: [HI])� Mode /Enter • Locking / unlocking The unit can be locked electronically to prevent unintentional wrong settings�...
9.2 Settings for volumetric flow monitoring 9.2.1 Settings for limit value monitoring with OUT1 ► Select [OU1] 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 [SP1] and set the value at which the output switches� ►...
9.4 User settings (optional) 9.4.1 Determine the standard unit of measurement for volumetric flow ► Select [UniF] and set the unit of measurement: [Lmin], [m3h], [GPm] or [GPh]� 9.4.2 Determine the standard unit of measurement for temperature ► Select [UniT] and set the unit of measurement: [°C] or [°F]� 9.4.3 Setting of the display mode ► Select [diS] and determine the update rate and orientation of the display: - [d1] = update of the measured values every 500 ms�...
9.4.9 Selection of the medium to be monitored ► [MEDI] wählen und gewünschtes Medium einstellen: - [H2O] = Water� - [GLYC] = Glycol solutions� - [OIL] = Oils� 9.5 Service functions 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: ►...
10 Operation After power on and expiry of the power-on delay time (approx� 10 s) the unit is in the Run mode (= normal operating mode)� It carries out its measurement and eval- uation functions and generates output signals according to the set parameters� •...
10.3 Error indication [SC1] Short circuit in OUT1� [SC2] Short circuit in OUT2� [SC] Short circuit in both outputs� [OL] Detection zone of volumetric flow or temperature exceeded: measured value between 120 % and 130 % of VMR� [UL] Below the detection zone of temperature: measured value below -10°C�...
12 Technical data Applications: ������������������������������������������������������������������������������� water, glycol solutions, oils Operating voltage [V] ������������������������������������������������������������������������������������������19���30 DC Current rating [mA] ����������������������������������������������������������������������������������������������������2 x 250 Protection: short circuit, reverse polarity, overload Voltage drop [V] ����������������������������������������������������������������������������������������������������������������< 2 Current consumption typ� [mA] ����������������������������������������������������������������������������������������100 Power-on delay time [s] �����������������������������������������������������������������������������������������������������10 Flow monitoring l/min m³/h...
13 Factory setting Factory setting User setting 20.0 10.0 80.0 SP2 (FLOW) 60.0 rP2 (FLOW) 62.0 SP2 (TEMP) 44.0 rP2 (TEMP) FOU1 FOU2 Lmin UniT °C UniF FLOW SEL2 MEDI More information at www�ifm�com...