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 �����������������������������������������������������������������������������6 4�3 Consumed quantity monitoring (totalizer function) ����������������������������������������6 4�3�1 Consumed quantity monitoring with pulse output ���������������������������������7 4�3�2 Consumed quantity monitoring with preset counter �����������������������������7 4�4 Temperature monitoring ���������������������������������������������������������������������������������7...
Page 3
9�3�1 Settings for quantity monitoring via pulse output ��������������������������������18 9�3�2 Settings for quantity monitoring via the preset counter ����������������������18 9�3�3 Settings for program-controlled counter reset ������������������������������������19 9�3�4 Deactivation of the counter reset ��������������������������������������������������������19 9�3�5 Counter reset using an external signal �����������������������������������������������19 9�4 Settings for temperature monitoring ������������������������������������������������������������19 9�4�1 Settings for limit value monitoring with OUT2 �������������������������������������19 9�4�2 Setting the analogue value for temperature ���������������������������������������20...
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 This is no medical equipment ! We cannot assure permanent availability nor a safe switching-off nor a self- diagnosis function�...
• If the operating instructions or the technical data are not adhered to, personal injury and/or damage to property may occur� • The manufacturer assumes no liability or warranty for any consequences caused by tampering with the product or incorrect use by the operator� •...
OUT2: 6 selection options Switching signal for volumetric flow limit value ����������������������������������� (→ 9.2.2) or switching signal for flow velocity limit value ������������������������������������ (→ 9.2.2) or switching signal for temperature limit value ������������������������������������ (→ 9.4.1) or analogue signal for volumetric flow quantity ����������������������������������� (→ 9.2.3) or analogue signal for flow velocity �����������������������������������������������������...
4.3.1 Consumed quantity monitoring with pulse output Output 1 provides a counting pulse each time the value set in [ImPS] is reached (→ 9.3.1). 4.3.2 Consumed quantity monitoring with preset counter 2 types of monitoring are possible: • Time-dependent quantity monitoring� - Settings: [ImPS] = quantity X, [ImPR] = [no], [rTo] = time t�...
• Window function / normally closed (figure 2): [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� HY = hysteresis; FE = window 4.6 Volumetric flow or temperature monitoring / analogue function -30% -20%...
Characteristics of the analogue output to the standard IEC 60947-5-7 1: Output current in mA 2: Operating area 3: Measuring range 4: Range between analogue start point and analogue end point 5: Error message [Err] is displayed 6: Final value of the measuring range (VMR) 7: Error message [OL] is displayed (= overload) 8: Analogue end point (AEP): determines at which measured value the output signal is 20 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 length vertical, any position (fig� 1, 2); pipe length horizontal, unit vertical (fig� 3, 5), unit on side, pipe length left (fig� 4)� • Avoid the installation position in fig� 6 (unit on side, pipe length 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 operation� If you change parameters during operation, the operating principle of the plant will be influenced� ► Ensure that there will be no malfunctions in your plant� 9.1 General parameter setting 3 steps must be taken for each parameter setting: 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 submenu is displayed (here: [HI])� Mode/EnterSet • Locking/unlocking: The unit can be locked electronically to prevent unintentional settings� ►...
9.2.2 Settings for limit value monitoring with OUT2 ► Select [Uni] and set the unit of measurement (→ 9.5.1). ► Select [SEL2] and set [FLOW]� ► Select [OU2] and set the switching function� - [Hno] = hysteresis function/NO - [Hnc] = hysteresis function/NC - [Fno] = window function/NO - [Fnc] = window function/NC ►...
9.3.3 Settings for program-controlled counter reset ► Select [rTo] and continue with a) or b) a) Reset the counter manually ► Press [Set] until [rES�T] is displayed, then briefly press [Mode/Enter]� b) Enter the value for time-controlled reset ► Press [Set] until the requested value is displayed (intervals from 1 hour to 8 weeks), then briefly press [Mode/Enter]�...
9.4.2 Setting the analogue value for temperature ► Select [SEL2] and set [TEMP]� ► Select [OU2] and set the function� - [I] = temperature-proportional current signal (4…20 mA) ► Select [ASP] and set the value at which the minimum value is provided� ►...
9.5.4 Setting of the error behaviour of the outputs ► Select [FOU1] and set the value - [On] = output 1 switches ON in case of a fault� - [OFF] = output 1 switches OFF in case of a fault� >...
9.6.2 Reset of all parameters to factory setting ► Select [rES]� ► Press [Set] and keep it pressed until [----] is displayed� ► Press [Mode/Enter] briefly� For the factory settings please refer to the end of these instructions (→ 11 Factory setting)�...
Page 23
Setting operation: ► Set [OU1] to [ImP] (→ 9.3.2). ► Press [Mode/Enter] until [ImPS] is displayed� ► Press [Set] and keep it pressed� > The current numerical value flashes for 5 s, then one of the 4 digits becomes active (digit flashes, can be changed)� ►...
► 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�...
Need help?
Do you have a question about the SD0550 and is the answer not in the manual?
Questions and answers