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 Function selection mode F_0 Initialize mode F_1 Selection of display mode F_2 Unit selection function F_3 Selection of output mode F_4 Selection of switch operation...
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 product may be 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 power supply.
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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 Lead wire with lead wire and connector without lead wire (Straight, 3 m) : Lead wire is not assembled with the product, but shipped together. Accessories/Part number If an accessory is required separately, order using the following part numbers. Part number Description Remarks...
Summary of Product parts Body Connector pin numbers (On the product) DC(+) Analogue output 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.
Ensure that there is no leakage from loose piping. Nominal thread size Required torque Rc(NPT)1 36 to 38 Nm Rc(NPT)1 48 to 50 Nm Rc(NPT)2 Width across flats of Model attachment PF2A703H 55 mm PF2A706H 65 mm PF2A712H 75 mm -15- No.PF※※-OMG0010-G...
■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 (1 output) + Analogue (1 to 5 V) type PF2A7 -28 - NPN (1 output) + Analogue (4 to 20 mA) type PF2A7 -29 -...
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 output 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. Switch Switch output diagram Output mode Set value operation 2 Set point 2 Set point 1 ≦...
50% of max. rated flow Input of Set point 1 [1500] L/min(PF2A703H) [F_0] Page [3000] L/min(PF2A706H) Input of Set point 2 [6000] L/min(PF2A712H) 2 Input of hysteresis Selection of switch operation [oU1_n] Reverse output Key-lock function [ UnL] Unlocked [F_1]...
■[F_0] Initialize mode Items below can be set one by one. <Operation> Press the buttons in function selection mode to display [F_0]. Press the button. Selection of display mode Refer to page 22. The product with unit selection function Press the button.
■[F_1] Selection of display mode <Operation> Press the buttons in function selection mode to display [F_1]. Press the button. Selection of display mode Select the display of instantaneous flow or accumulated flow. Press the button for select. [d_1]: display instantaneous flow [d_2]: display accumulated flow Press the button.
Move on to [F_3] Selection of output mode. Flow specification when [ U_2] is selected by the unit selection function Model PF2A703H PF2A706H PF2A712H Rated flow range 5.5 to 106.0 CFM 10.5 to 212.0 CFM 21.0 to 423.5 CFM Setting/display flow 4.5 to 107.0 CFM...
■[F_3] Selection of output mode <Operation> Press the buttons in function selection mode to display [F_3]. Press the button. Selection of output mode Select the switch output mode required referring to the list of outputs (page 19). Press the button for select. [oU1_0]: Instantaneous output mode [oU1_1]: Accumulated output mode [oU1_2]: Accumulated pulse output mode...
■[F_4] Selection of switch operation <Operation> Press the buttons in function selection mode to display [F_4]. Press the button. Selection of switch operation Select the switch you need referring the list of outputs (page 19). Press the button for select. [oU1_n] : Reverse output [oU1_P]: Non-Reverse output Press the...
■[F_5] Key-lock function The key-lock function is used to prevent errors occurring due to unintentional changes of the Set values. <Operation - How to lock> Press the buttons in function selection mode to display [F_5]. Press the button. Key-lock function Press the button to select [ Loc].
■[F_6] Input of the Set point When Instantaneous output mode is selected <Operation> Press the buttons in function selection mode to display [F_6]. Press the button. Input of the Set point 1 [ n_1] and the current Set value are displayed in turn.
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When Accumulated output mode is selected The value can be set up to 9999999999 L (999999999.9 ft ). The display digits for accumulated flow are divided into upper, middle, and lower digits. When setting the value, it is divided into upper, middle and lower digits.
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When Accumulated pulse output mode is selected No Set value is input. [F_6] is not displayed in function selection mode. The display moves on to the selection of the switch operation in initialize mode. -29- No.PF※※-OMG0010-G...
■[F_7] Reference condition selection Standard condition or normal condition can be selected. <Operation> Press the buttons in function selection mode to display [F_7]. Press the button. Reference condition selection Press the button for selection. [ Anr]: Standard condition. Flow display which is converted in atmospheric pressure at 20 C, 65%R.H. [ nor]: Normal condition.
■[F_8] Accumulated value hold In the default setting, the accumulated value is cleared when the power supply is turned off. The accumulated value hold function enables the accumulated flow value to be stored in permanent memory every 4 minutes. The maximum writable limit of the memory device is 1 million cycles, which should be taken into consideration.
Other functions ●Reset of the accumulated flow When the accumulated flow display is selected, the accumulated flow can be reset to zero. <Operation> Press the button for 6 seconds or longer while the button is pressed. ●Reset to the default setting The product can be returned to the default settings.
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 Reduce the flow. instantaneous flow limit of the display flow range. Turn the power off and remove The switch output load current Over current error the cause of the over current.
Specifications ■Specifications Model PF2A703H PF2A706H PF2A712H Applicable fluid Dry air and N 0 to 50 C (no freezing or condensation) Fluid temperature Rated flow range 150 to 3000 L/min 300 to 6000 L/min 600 to 12000 L/min Setting/display flow 125 to 3025 L/min...
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Model PF2A703H PF2A706H PF2A712H Output voltage: 1 to 5 V Voltage output Output impedance: approx. 1 kΩ Output current: 40 to 20 mA Current output Load impedance: 250 Ω Accuracy ±3%F.S. max. Response time 1 s or less Display accuracy ±1.5%F.S.
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PF2A706H 10.5 CFM 212.0 CFM 600 NL/min 12000 NL/min PF2A712H 21.0 CFM 423.5 CFM : Analogue output is based on the rated flow range at normal condition. Displayed flow range is based on standard condition. Therefore, the range of rated flow and the displayed flow are different..
Rc1, NPT1, G1 , NPT1 , G1 PF2A706H 65 mm 180 mm 45 mm 104 mm 79 mm 65 mm PF2A712H 75 mm 220 mm 55 mm 114 mm 89 mm 75 mm Rc2, NPT2, G2 Model PF2A703H 36 mm M5 x 0.8...
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Lead wire and connector (Straight): ZS-37-A Lead wire and connector (Right angle): ZS-37-B Dimensions of rotating monitor part -42- No.PF※※-OMG0010-G...
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Revision history A: Full scale revision due to the change of the format and addition of items. B: Contents changed due to the change of the format. C: Revision. D: Contents revised in several places. E: Modified errors in text. F: Modified errors in text.
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