Table of Contents Safety Instructions Model Indication and How to Order Summary of Product parts Definition and terminology Mounting and Installation Installation Piping Wiring Outline of setting List of outputs Initialize mode Setting procedure of initialize mode Function selection mode F_1 Input procedure of the Set value of instantaneous output F_2 Input procedure of the Set value of instantaneous output (Auto-preset) F_3 Input procedure of the Set value of accumulated output...
Safety Instructions These safety instructions are intended to prevent hazardous situations and/or equipment damage. These instructions indicate the level of potential hazard with the labels of "Caution", "Warning" or "Danger". They are all important notes for safety and must be followed in addition to International Standards (ISO/IEC) , and other safety regulations.
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Safety Instructions Caution 1.The product is provided for use in manufacturing industries. The product herein described is basically provided for peaceful use in manufacturing industries. If considering using the product in other industries, consult SMC beforehand and exchange specifications or a contract if necessary. If anything is unclear, contact your nearest sales branch.
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Operator This operation manual is intended for those who have knowledge of machinery using pneumatic equipment, and have sufficient knowledge of assembly, operation and maintenance of such equipment. Only those persons are allowed to perform assembly, operation and maintenance. Read and understand this operation manual carefully before assembling, operating or providing maintenance to the product.
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Caution ■Do not touch the terminals and connectors while the power is on. Otherwise electric shock, malfunction or damage to the product can result. ■After maintenance is complete, perform appropriate functional inspections and leak tests. Stop operation if the equipment does not function properly or there is a leakage of fluid. When leakage occurs from parts other than the piping, the product might be faulty.
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●Product handling Installation Tighten to the specified tightening torque. If the tightening torque is exceeded the mounting screws and brackets may damaged. If the tightening torque is insufficient, the product may be displaced and the mounting screws may come loose. (Refer to page "Mounting and Installation".) Ensure that the FG terminal is connected to ground when using a commercially available switch-mode...
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Wiring Do not pull the lead wires. In particular, never lift a product equipped with fitting and piping by holding the lead wires. Otherwise damage to the internal parts can result, causing malfunction or disconnection of the connector. Avoid repeatedly bending or stretching the lead wire, or placing heavy loads on it. Repeated bending stress or tensile stress can cause damage to the sheath, or breakage of the wires.
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Environment Do not use the product in an environment that is constantly exposed to the splash of water. Otherwise failure or malfunction can result. Take measures such as using a cover. Do not use the product in an environment where corrosive gases or fluids could be splashed. Otherwise damage to the product and malfunction can result.
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Adjustment and Operation Connect load before turning the power supply on. Do not short-circuit the load. Although an error is displayed when the product load is short circuited, excess current may cause damage to the product. Do not press the setting buttons with a sharp pointed object. This may damage the setting buttons.
Model indication and How to Order -10- No.PF※※-OMO0008-C...
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Lead wire with lead wire and connector without lead wire (Straight, 3 m) : Lead wire is not assembled with the product, but shipped together. Made to order Model indication Content Page PF2A7 -28 - -X560 Output specification (1 output): NPN + Analogue (1 to 5 V) PF2A7 -29 - -X560 Output specification (1 output): NPN + Analogue (4 to 20 mA)
Summary of Product parts Body Connector pin numbers (On the product) DC(+) OUT2 DC(-) OUT1 Item Description Monitor part See below. Piping port Connected to the fluid inlet at IN side and to the fluid outlet at OUT side. Body The body of the product.
■Definition and terminology Terms Meaning The total amount of fluid that has passed through the device. If an instantaneous flow of Accumulated flow 10 L/min continues for 5 minutes, the accumulated flow will be 10 x 5 = 50 L. Accumulated pulse A type of output where a pulse is generated every time a predefined accumulated flow output...
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Terms Meaning Rated flow range The flow range within which the product will meet all published specifications. Rated pressure range The pressure range within which the product will meet all published specifications. Reproducibility of the display or analogue output value, when the flow is repeatedly Repeatability changing.
Mounting and Installation ■Installation Never mount the product in a location that will be used as a foothold. The rotation angle of the monitor is 270 , in steps of 90 . Rotating the display part with excessive force will damage the end stop.
■Piping Use the product within the specified operating pressure range and temperature range. Proof pressure is 1.0 MPa. Connect the piping to the fittings. Mount the product so that the fluid direction is the same as the arrow indicated on the product. Never mount the product upside down.
■Wiring Connections should only be made with the power supply turned off. Use separate routes for the product wiring and any power or high voltage wiring. Otherwise, malfunction may result due to noise. Ensure that the FG terminal is connected to ground when using a commercially available switch-mode power supply.
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●Internal circuit and wiring example When the lead wire with connector designated for the PF2A7 is used, the wire colours will apply as shown in the diagram. NPN (2 outputs) type PF2A7 -27 - Max. 30 V, 80 mA Internal voltage drop: 1 V or less PNP (2 outputs) type PF2A7 -67 -...
Outline of setting Power is supplied The output will not operate for 3 seconds after supplying power. The identification code of the product is displayed. Measurement mode The mode in which the flow is detected and displayed, and the switch function is operating. This is the basic operating mode;...
■List of outputs Find the diagram of the output required in the table below. Perform settings following the Set value column on the right. Characters in ( ) are for OUT2. Switch Switch output diagram Output mode Set value operation Set point 2 Set point 1 2z...
■Setting procedure of initialize mode <Operation> Press the button for 2 seconds or longer in measurement mode. Selection of display mode Select the display of instantaneous flow or accumulated flow. Press the button to select. [d_1]: display instantaneous flow [d_2]: display accumulated flow The product with unit selection function Press the button.
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Selection of switch operation (OUT1) Select the switch operation required referring to the list of outputs (page 20). Press the button to select. [1_n]: Reverse output [1_P]: Non-Reverse output Press the button. Selection of switch operation (OUT2) Select the switch operation required referring to the list of outputs (page 20). Press the button to select.
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Flow specification when [U_2] is selected by the unit selection function Model PF2A710 PF2A750 PF2A711 PF2A721 PF2A751 3.5 to 35.5 18 to 176 3.5 to 35.5 7 to 71 18 to 176 Rated flow range CFM x 10 CFM x 10 CFM x 10 CFM x 10 CFM x 10...
Function selection mode Function selection mode In measurement mode, press the button, to display [F_ ]. This [F_ ] indicates the mode for changing each functional setting. : When OUT1 or OUT2 is assigned to be instantaneous output mode during initialize mode, [F_1] and [F_2] are displayed. When OUT1 or OUT2 is assigned to be accumulated output mode, [F_3] is displayed.
■[F_1] Input procedure of the Set value of instantaneous output The Set point of the switch output can be set manually. <Operation> Press the button in function selection mode to display [F_1]. (When OUT1 or OUT2 is assigned to be accumulated output mode, [F_1] is displayed.) Press the button.
■[F_2] Input procedure of the Set value of instantaneous output (Auto-preset) The Set point of the switch output can be automatically set referring to actual air flow. <Operation> Press the button in function selection mode to display [F_2]. (When OUT1 or OUT2 is assigned to be accumulated output mode, [F_2] is displayed.) Press the button.
■[F_3] Input procedure of the Set value of accumulated output The Set point of the switch output can be manually set. Accumulated flow rate is displayed by the lower 3 digits and upper 3 digits separately. Setting is performed separately. <Operation>...
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[F_3] Input procedure of the Set value of accumulated output is completed. Return to measurement mode. Starting of accumulation Check that the display of accumulated flow rate is selected as the display mode. Press the buttons simultaneously in measurement mode. [-] flashes and accumulation starts.
Key-lock function This function is used to prevent errors occurring due to unintentional changes of the Set values. <How to lock> 1. Press the button for 3 seconds or longer in measurement mode. The display will change from [F_ ] to [d_ ] to [unL]. When [unL] is displayed, release the button.
Maintenance How to reset the product after a power cut or forcible de-energizing The setting of the product will be retained as it was before a power cut or de-energizing. The output condition is also basically recovered to that before a power cut or de-energizing, but may change depending on the operating environment.
Troubleshooting Troubleshooting If an operation failure occurs with the product, use the table below to find out the cause of the problem. If none of the countermeasures seem to be applicable, or a replacement product operates normally when installed, the product may be faulty. A product can be damaged by the operating environment (system configuration etc).
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Fault Probable cause Recommended action Wiring failure. Correct the wiring. There is no output. Connector loose. Check the connector. Install a filter or mist separator at IN side of product. Foreign matter inside. If there is foreign matter stuck to the mesh, remove it completely, taking care not to damage the product.
■Error indication Error Name Error Display Error Type Troubleshooting Method Excessive Flow has exceeded the upper limit of the Reduce the flow. instantaneous flow display flow range. OUT1 The switch output load current is more over current error than 80 mA (OUT1). Turn the power off and remove the cause of the over current.
Specification ■Specifications Model PF2A710 PF2A750 PF2A711 PF2A721 PF2A751 Applicable fluid Air and N 0 to 50 C (No freezing or condensation) Fluid temperature 1 to 10 5 to 50 10 to 100 20 to 200 50 to 500 Rated flow range L/min L/min L/min...
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Model PF2A710 PF2A750 PF2A711 PF2A721 PF2A751 Enclosure IP65 Operation: 0 to 50 C, Storage: -25 to 85 C (no condensation or freezing) Operating temperature range Operation, Storage: 35 to 85%R.H. (no condensation) Operating humidity range ±3%F.S. max. (15 to 35 C), ±5%F.S. max. (0 to 50 C) Temperature characteristics Withstand voltage 1000 VAC, for 1 minute between the external terminals and case...
■Characteristics data ●Flow characteristics (pressure loss) Model Graph a (L/min) b (L/min) PF2A710 PF2A750 PF2A711 PF2A721 PF2A751 -37- No.PF※※-OMO0008-C...
■Dimensions (in mm) PF2A710/750 PF2A711/721/751 -38- No.PF※※-OMO0008-C...
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Lead wire and connector (Straight): ZS-37-A Lead wire and connector (Right angle): ZS-37-B Bracket: ZS-29-T Dimensions of rotating monitor part -39- No.PF※※-OMO0008-C...
Made to Order ●Model Indication and How to Order Refer to page for details of model indication and how to order. ●Internal circuit and wiring example When the lead wire with connector designated for PF2A7 is used, the wire colours will apply as shown on the circuit diagram.
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●Specifications PF2A7 -28 - -X560 PF2A7 -29 - -X560 Model PF2A7 -68 - -X560 PF2A7 -69 - -X560 Voltage output (1 to 5 V) Current output (4 to 20 mA) Load impedance Output impedance Power supply voltage 12 V: 300 Ω Impedance Analogue approx.
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