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 ����������������������������������������������������������������������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 4�5 Volumetric flow or temperature monitoring / switching function ���������������������7...
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9�3�2 Settings for quantity monitoring using the preset meter ��������������������21 9�3�3 Settings for meter reset controlled by the program ����������������������������21 9�3�4 Switch off the meter reset �������������������������������������������������������������������21 9�3�5 Settings for meter reset by an external signal ������������������������������������21 9�4 Settings for temperature monitoring �����������������������������������������������������������21 9�4�1 Settings for limit value monitoring with OUT2 �������������������������������������21 9�4�2 Scaling of the analogue value for temperature �����������������������������������22 9�5 User settings (optional) ��������������������������������������������������������������������������������22...
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 the product description prior to installing the unit� Ensure that the product is suitable for your application without any restrictions�...
3 Functions and features The unit monitors liquids� It detects the 3 process categories volumetric flow, consumed quantity, medium temperature� Applications: • Water • Glycol solutions • Oils (viscosity: viscosity: ≤ 68 cSt at 104°F / ≤ 68 mm²/s at 40°C) Selection of the medium to be monitored → 9.5.9. 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�...
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�...
4.5 Volumetric flow or temperature monitoring / switching function OUTx changes its switching state if it is above or below the set switching limits (SPx, rPx)� The following switching functions can be selected: • Hysteresis function / normally open (fig� 1): [OUx] = [Hno]� • Hysteresis function / normally closed (fig�...
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Voltage output 0 ��� 10 V (example volumetric flow monitoring) Factory setting Measuring range scaled U [V] U [V] MEW = final value of the measuring range In the set measuring range the output signal is between 0 and 10 V� It is also indicated: Volumetric flow above the measuring range: output signal >...
4.7 Start-up delay [dSt] If the start-up delay is active ([dSt] > [0]), note: as soon as the volumetric flow quantity exceeds 0�5 % of the final value of the measuring range (VMR), the fol- lowing processes are carried out: • The start-up delay is activated�...
Example: dSt for window function 0,5% 1 Volumetric flow quantity Q reaches 0.5% of VMR → dSt starts, output becomes active. 2 dSt elapsed, Q reached good range → output remains active. 3 Q above SP (leaves good range) → output is reset. 4 Q again below SP → output becomes active again. 5 Q below rP (leaves good range) → output is reset again. 6 Q reaches again 0.5 % of VMR → dSt starts, output becomes active. 7 dSt elapsed, Q has not reached good range → output is reset. 8 Q reaches good range → output becomes active. 4.8 Customer-specific calibration (CGA) This calibration changes the slope of the curve of measured values� It influences the display and the outputs� operating value for display and output signals 140% MEW...
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 • On the suction side of a pump�...
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� E40192: 2 adapters for ½“ NPT pipes, stainless steel + 2 seals� Order no� E40193: 2 adapters for ¾“ NPT 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 uninten- tional 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 gallons per minute (gpm)� - LED 2 = current volumetric flow in gallons per hour (gph)� - LED 3 = current consumed quantity since the last reset in gallons (gal)�...
8.2 Explanation of the menu SP1/rP1 Maximum / minimum value for volumetric flow� ImPS Pulse value� Pulse repetition active (= function pulse output) or not active (= function preset ImPR 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 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 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�...
9.3.2 Settings for quantity monitoring using the preset meter ► Select [OU1] and set [ImP]� ► Select [ImPS] and set the volumetric flow quantity at which output 1 switches (→ 9.7). ► Select [ImPR] and set [no]: pulse repetition is not active� The output switches ON if the value set in [ImPS] is reached�...
9.4.2 Scaling of the analogue value for temperature ► Select [SEL2] and set [TEMP]� ► Select [OU2 ] and set the function: - [I] = current signal proportional to temperature (4…20 mA); - [U] = voltage signal proportional to temperature (0…10 V)� ►...
9.5.5 Calibration reset ► [Select [CAr]� ► Press [Set] and keep it pressed until [----] is displayed� ► Press [Mode/Enter] briefly� > Value is reset (CGA = 100)� 9.5.6 Setting the start-up delay ► [dSt] Select [dSt] and set the numerical value in seconds� 9.5.7 Setting the damping of the measured values ►...
9.6.2 Reset all parameters to the factory setting [----] is dis- ► Select [rES], then press [Set] and keep it pressed until played� ► Press [Mode/Enter] briefly� The factory setting is listed at the end of the instructions (→ 13 Factory setting)� It makes sense to write your own settings in this table before executing the function�...
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► Press [Set] once� The flashing digit is increased� 9 is followed by 0 - 1 - 2, etc� 8 1� 2 3 1 x [Set] pressed 9 1� 2 3 1 x [Set] pressed 0 1� 2 3 1 x [Set] pressed 1 1� 2 3 ►...
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� • Operation indication → chapter 7 Controls and indicating elements.
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 14°F.
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 Analogue output ���������������������������������������4���20 mA / 0���10 V; measuring range scaleable Max. load current output [Ω] ��������������������������������������������������������������������������������������������500 Min. load for voltage output [kΩ] ������������������������������������������������������������������������������������������2 Pulse value �����������������������������������������������������������������������������������������������...