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. • If the operating instructions or the technical data are not adhered to, personal injury and/or damage to property can occur.
Avoid static and dynamic overpressure exceeding the given overload pres- sure by taking appropriate measures. The indicated bursting pressure must not be exceeded. Even if the bursting pressure is exceeded only for a short time, the unit may be destroyed. ATTENTION: risk of injury! Use in gases at pressures >...
P = system pressure; HY = hysteresis; FE = window 4.3 Pressure monitoring / analogue function The analogue output can be configured: [OU2] defines whether the set measuring range is provided as 4���20 mA ([OU2] = [I]) or as 20���4 mA ([OU2] = [InEG])� Scaling can be set by means of the teaching process or by entering a value for the ASP and AEP parameters�...
In the set measuring range the output signal is between 4 and 20 mA ([OU2] = [I]) or between 20 and 4 mA ([OU2] = [InEG])� It is also indicated: • System pressure above the measuring range: - Output signal 20 to 20�5 mA at [OU2] = [I]� - Output signal 4 to 3�8 mA at [OU2] = [InEG]�...
• P = measured pressure; P‘ = modified measured value CP2' • CP1 = calibration point 1; CP2 = calibration point 2; CP2‘ = modified measured value for • 1 = curve of measured values at factory setting • 2 = curve of measured values after calibration •...
Use in hygienic areas to EHEDG ► Make sure that the sensors are integrated into the system in accordance with EHEDG� After installation the analogue display can be rotated / adapted to the instal- lation position� Use gloves to do so� 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 Mode/ Enter 1: Analogue display - Display of the current system pressure in bar and PSI or mbar and inH2O� 2: LED ring - Display of set point and reset point� - Trend display: rising pressure (5 LEDs below the pointer) / falling pressure (5 LEDs above the pointer)�...
6: Touch button Mode/Enter* - Selection of the parameters and acknowledgement of the parameter values� * The two touch buttons are activated simply by touching / deactivated by releasing the touch button� The touch button must be completely covered to be activated� Slow covering (e�g� liquid flows over the display) does not activate the touch button� 8 ...
8.2 Explanation of the main menu SP1/rP1 Upper / lower limit value for system pressure at which OUT1 switches� Output function for OUT1: • Switching signal for the pressure limit values: hysteresis function [H ��] or window function [F ��], either normally open [� no] or normally closed [� nc]� Output function for OUT2: •...
8.4 Explanation of the menu level 2 Standard unit of measurement for system pressure� Display mode: SELd • Pressure in the unit set in [Uni]� • Pressure in % of the set scaling of the analogue output� Analogue start point for system pressure: measured value at which 4 mA is provided (20 mA if [OU2] = [InEG])�...
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 setting: Select parameter ►...
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Mode/ Enter the valid code no� appears� ► Touch [Mode/Enter] briefly� On delivery by ifm electronic: no access restriction� • Locking / unlocking The unit can be locked electronically to prevent an unintentional operation� ► Make sure that the unit is in the normal operating mode�...
9.2 Configuration of the digital display (optional) ► Select [Uni] and set the unit of measurement: - [bAr], [mbAr], [PSI], [inHO]� ► Select [SELd] and set type of indication: - [P]: system pressure in the unit set in Uni� - [P%]: system pressure in % of the set scaling of the analogue output; the following applies: 0% = ASP value / 100% = AEP value�...
9.3 Set output signals 9.3.1 Set output functions ► Select [OU1] and set the switching function: - [Hno] = hysteresis function/NO� - [Hnc] = hysteresis function/NC� - [Fno] = window function/NO� - [Fnc] = window function/NC� ► Select [OU2 ] and set the analogue function: - [I] = current signal proportional to pressure 4…20 mA�...
As an alternative: ► Select [ASP] and set the measured value at which 4 mA is provided (20 mA at [OU2] = [InEG])� ► Select [AEP] and set the measured value at which 20 mA is provided (4 mA at [OU2] = [InEG])� Minimum distance between ASP and AEP = 25 % of the final value of the measuring range (turn-down 1:4)�...
9.4.5 Set damping for the analogue signal ► Select [dAA] and set a value between 0�01 and 30 s� dAA value = response time between pressure change and change of the analogue signal in seconds� 9.4.6 Calibrate curve of measured values If the unit is to adopt the settings for the calibration points, the following conditions must be adhered to: - CP1 and CP2 must be within the measuring range (i�e�...
9.5 Service functions 9.5.1 Read min/max values for system pressure ► Select [HI] or [LO] and touch [Set] briefly� [HI] = maximum value, [LO] = minimum value� Delete memory: ► Select [HI] or [LO]� ► Touch [Set] and keep it touched until [----] is displayed� ► Touch [Mode/Enter] briefly� 9.5.2 ...
14 Factory setting Factory setting User setting 25.0 % VMR* 24.9 % VMR* COF / tCOF ASP / tASP 0% VMR* AEP / tAEP 100% VMR* bAr / mbAr SELd 0.06 0.03 SPRP 0.00 0.00 * = the indicated percentage of the final value of the measuring range (VMR) of the cor- responding sensor is set� More information at www�ifm�com...
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