SMC Corporation PFMB7201 Operation Manual
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SMC Corporation PFMB7201 Operation Manual

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No.PF※※-OMO0005-D
PRODUCT NAME
Digital Flow Switch
MODEL / Series / Product Number
PFMB7201

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Summary of Contents for SMC Corporation PFMB7201

  • Page 1 No.PF※※-OMO0005-D PRODUCT NAME Digital Flow Switch MODEL / Series / Product Number PFMB7201...

  • Page 2: Table Of Contents

    Contents Safety Instructions Model Indication and How to Order Summary of Product parts Definition and terminology Mounting and Installation Installation Piping Wiring Outline of Settings [Measurement mode] Flow Setting (set value only) of OUT1 · OUT2 [3 step setting mode] Default settings Function Setting [Function selection mode] Default settings...

  • Page 3: Safety Instructions

    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.
  • Page 4 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.
  • Page 5 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.
  • Page 6 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.
  • Page 7 ●Product handling Installation Tighten to the specified tightening torque. If the tightening torque is exceeded the mounting screws, the product may damaged. If the tightening torque is insufficient, the product may be displaced and the mounting screws may come loose. Do not apply excessive stress to the product when it is mounted with a panel mount.
  • Page 8 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.
  • Page 9 Environment Do not use the product in an area that is exposed to water or steam. Otherwise it can cause failure or malfunction. Do not use the product in area that is exposed to oil, coolant, cleaning, solvent, sea water or chemicals. Otherwise it can cause adverse effects (damage, failure, malfunction, or hardening of the lead wire, etc).
  • Page 10 Adjustment and Operation Connect load before turning on the power. 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.

  • Page 11: Model Indication And How To Order

    Model Indication and How to Order -10- No.PF※※-OMO0005-D...
  • Page 12 Option1 With lead wire with connector (2 m) With lead wire with connector (2 m) No lead wire Connector cover (Silicone rubber) Option 2 No bracket With bracket With bracket (Without flow adjustment valve) (With flow adjustment valve) Not suitable for bottom entry piping type.
  • Page 13 Accessories/Part numbers If an accessory is required, order using the following part number. Part number Description Note ZS-33-D Lead wire with connector Length: 2 m Connector cover Silicone rubber ZS-33-F ZS-33-J Panel mount adapter (without flow adjustment valve) ZS-33-JS Panel mount adapter (with flow adjustment valve) With mounting screws ZS-33-M Bracket (without flow adjustment valve)

  • Page 14: Summary Of Product Parts

    Summary of Product parts Body Name Description 1 Display See below. Connector Connector for electrical connections. 2 Flow adjusting valve Orifice mechanism to adjust the flow rate. 2 Lock ring Used to lock the flow adjustment valve. Piping port For piping connections. Connected to the fluid inlet at IN and to the fluid outlet at OUT. Through hole Used to mount the product on a DIN rail or directly to a panel.

  • Page 15: Definition And Terminology

    ■ Definition and terminology Terminology Definition The total amount of fluid that has passed through the device. If an instantaneous Accumulated flow flow of 10 L/min continues for 5 minutes, the accumulated flow will be 5 x 10 = 50 L. Accumulated flow external A function to reset the accumulated flow to "0"...
  • Page 16 Terminology Definition The resolution of set and display values. Minimum setting unit If the minimum setting unit is 1 L/min, the flow can be displayed in 1 L/min units, i.e. 10, 11, 12. The fluid temperature range within which the product will meet all published Operating fluid temperature specifications.

  • Page 17: Mounting And Installation

    Mounting and Installation Mounting Never mount the product in a place where it will be used as a mechanical support. Mount the product so that the fluid flows in the direction indicated by the arrow on the side of the body. ■Installation Panel mounting Insert the panel mount adapter A into the panel mount adapter B.
  • Page 18 Bracket mounting Mount the bracket to the product using the mounting screws. Fasten the bracket mounting screws to a torque of 0.45 to 0.55 Nm. Self tapping screws are used, and should not be re-used several times. Without flow adjustment valve With flow adjustment valve (using ZS-33-M) (using ZS-33-MS)
  • Page 19 Direct mounting For direct mounting use M3 screws (2 pcs) or equivalent. Screws are prepared by customer. The tightening torque should be 0.35 to 0.45 Nm. Refer to the dimension drawing (page 84) for the mounting hole size. DIN rail mounting Mount the bracket to the product using the joint screws.

  • Page 20: Piping

    ■ Piping Never mount the product upside down. The straight piping length shall be 8 cm or longer. Otherwise, if a straight section of piping is not installed, the accuracy varies by approximately 2%F.S. Refer to the straight inlet piping length and accuracy graph (page 70). Avoid sudden changes in the piping size on the IN side of the product.
  • Page 21 Piping for the One-touch fitting Insert the tube all the way into the fitting so that it cannot be pulled out. Insertion with excessive force can cause damage. Ensure there is no leakage after piping. Use the product within the specified operating pressure and temperature range. -20- No.PF※※-OMO0005-D...

  • Page 22: Wiring

    ■ Wiring Connection Connections should only be made with the power supply turned off. Use a separate route 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.
  • Page 23 Internal circuit and wiring examples NPN (2 outputs) type PFMB7 -A - Maximum applied voltage: 28 V Maximum load current: 80 mA Internal voltage drop: 1 V or less NPN (1 output) + Analogue output type (1 to 5 V) PFMB7 -C - NPN (1 output) + Analogue output type (4 to 20 mA)
  • Page 24 PNP (2 outputs) type PFMB7 -B - Maximum load current: 80 mA Internal voltage drop: 1.5 V or less PNP (1 output)＋Analogue (1 to 5 V) output type PFMB7 -E - PNP (1 output) + Analogue (4 to 20mA) output type PFMB7 -F - Maximum load current: 80 mA...
  • Page 25 Example of wiring for accumulated pulse output NPN (2 outputs) type PFMB7 -A - NPN (1 output) + Analogue output type PFMB7 -C - PFMB7 -D - NPN (1 output) + External input type PFMB7 -G - PNP (2 outputs) type PFMB7 -B - PNP (1 output) + Analogue output type...

  • Page 26: Outline Of Settings [Measurement Mode]

    Outline of Settings [Measurement mode] Power is supplied The output will not operate for 3 seconds after supplying power. The identification code of the product is displayed. [Measurement mode] Measurement mode is the condition where the flow is detected and displayed, and the switch function is operating.

  • Page 27: Flow Setting (Set Value Only) Of Out1 · Out2 [3 Step Setting Mode]

    When the flow exceeds the set value [P_1], the switch will be turned ON. When the flow falls below the set value by the amount of hysteresis [H_1] or more, the switch will turn OFF. If the operation shown in the diagram below is acceptable, then keep these settings. ●PFMB7201 Item Default settings...
  • Page 28 <Operation> 1. Press the button once in measurement mode. [P_1] or [n_1] and [the current set value] are displayed in turn. 2. Press the button to change the set value. button is to increase and the button is to decrease the set value. Press the button continuously to keep...

  • Page 29: Default Settings

    Function Setting [Function selection mode] Function selection mode In this mode, each function setting can be changed separately. In measurement mode, press the button for 2 seconds or longer, to display [F 0]. Press the button to select the function to be changed. Press the button for 2 seconds or longer in function selection mode to return to measurement mode.

  • Page 30: F0 Reference Condition · Unit Selection Function

    ■ [F 0] Reference condition · Unit selection function Reference condition Standard condition or normal condition can be selected. Unit selection function  The selectable display units are L/min or CFM (ft /min). This setting is only available for models with the unit selection function. : This function is not displayed for models without unit selection function.
  • Page 31 Flow specification when [ Ft] is selected during the unit selection function. Model PFMB7201 Rated flow range 0.08 to 7.06 cfm Instantaneous flow 0.08 to 7.42 cfm Set flow rate range Accumulated flow 0 to 99,999,999.9 ft Flow Instantaneous flow 0.01 cfm...

  • Page 32: F1 Setting Of Out1

    ■ [F 1] Setting of OUT1 Set the output mode of OUT1. ●Switch output operation list Select the operation required from the table below. Characters in ( ) are for OUT2. Switch Operation Normal output Reversed output Output mode Hysteresis mode Window comparator...
  • Page 33 ●Setting flowchart Refer to the list of Switch output operation list for the setting procedure. Characters in ( ) are for OUT2. (Mark the procedure path with a pen or marker.) : OUT2 cannot be set. Enter the items that you selected, following the procedure below. -32- No.PF※※-OMO0005-D...
  • Page 34 Follow the Setting flowchart. <Operation>: Setting of OUT1 Press the button in function selection mode to display [F 1]. [F 1] and [oU1] are displayed in turn. Press the button. Output mode [oU1] and [the current set value] are displayed in turn. Press the button to select.
  • Page 35 a. When hysteresis mode is selected Set value [P_1] or [n_1] and [the current set value] are displayed in turn. Press the button to change the value. Press the button to set. Hysteresis [H_1] and [the current set value] are displayed in turn. Press the button to change the value.
  • Page 36 b. When window comparator mode is selected Set value (Lower limit value) [P1L] or [n1L] and [the current set value] are displayed in turn. Press the button to change the value. Press the button to set. Set value (Upper limit value) [P1H] or [n1H] and [the current set value] are displayed in turn.
  • Page 37 c. When accumulated output mode is selected Count up display (addition) or count down (decrement) [AC1] and [the current set value] are displayed in turn. Press the button to select. Press the button to set. The accumulated output can be set between 0 and 999999999 L. The set value is input starting from the upper 3 digits.
  • Page 38 Set value (lower 3 digits) [P1.3] or [n1.3] and [the current set value] are displayed in turn. Press the button to change the value. Press the button to set. Display colour The display colour can be set to change depending upon the status of OUT1.
  • Page 39 d. When accumulated pulse output mode is selected Display colour The display colour can be set to change depending upon the status of OUT1. [CoL] and [the current set value] are displayed in turn. Press the button to select. Press the button to set.

  • Page 40: F2 Setting Of Out2

    ■ [F 2] Setting of OUT2 Set the output mode of OUT2. Refer to the list of switch output modes (page 31) and the flow setting chart (page 32). : When using a model without OUT2 (switch output), this setting is not available and [---] will be displayed. <Operation>: Setting of OUT2 Press the button in function selection mode to display [F 2].
  • Page 41 a. When hysteresis mode is selected Set value [P_2] or [n_2] and [the current set value] are displayed in turn. Press the button to change the set value. Press the button to set. Hysteresis [H_2] and [the current set value] are displayed in turn. Press the button to change the set value.
  • Page 42 b. When window comparator mode is selected Set value (Lower limit value) [P2L] or [n2L] and [the current set value] are displayed in turn. Press the button to change the set value. Press the button to set. Set value (Upper limit value) [P2H] or [n2H] and [the current set value] are displayed in turn.
  • Page 43 c. When accumulated output mode is selected The accumulated output can be set between 0 and 999999999 L. The set value is input starting from the upper 3 digits. The position of the dots indicates which digits are displayed. Set value (upper 3 digits) [P2.1] or [n2.1] and [the current set value] are displayed in turn.
  • Page 44 d. When accumulated pulse output mode is selected Press the button to set. [F 2] Setting of OUT2 completed. Return to function selection mode. : The display colour is defined by OUT1 and cannot be changed with any OUT2 settings. ...

  • Page 45: F3 Response Time

    ■ [F 3] Response time The response time of the switch output and analogue output can be selected. Output chattering can be prevented by setting the response time. <Operation> Press the button in function selection mode to display [F 3]. [F 3] and [rEF] are displayed in turn.

  • Page 46: F10 Display Mode

    ■ [F10] Display mode Select instantaneous flow or accumulated flow to be displayed. <Operation> Press the button in function selection mode to display [F10]. [F10] and [FLo] are displayed in turn. Press the button. Display mode [FLo] and [the current set value] are displayed in turn. Press the button to select.

  • Page 47: F13 Reversed Display Mode

    ■ [F13] Reversed display mode This function is used to rotate the display upside down. It is used to correct the display when it is upside down due to the installation of the product. When the reversed display is used, the function of the buttons is reversed.

  • Page 48: F20 External Input

    ■ [F20] External input This function is available when the model includes the external input function. The accumulated value, peak value and bottom value can be reset remotely. : When using a model without external input function, this setting is not available and [---] will be displayed. Accumulated flow external reset: A function to reset the accumulated flow value when an external input signal is applied.

  • Page 49: F22 Setting Of Analogue Output

    ■ [F22] Setting of analogue output This function is available when the model includes the analogue output. The flow value corresponding to an analogue output voltage = 5 V or analogue output current = 20 mA can be selected.  When using a model without analogue outputs, this setting is not available and [---] will be displayed. <Operation>...

  • Page 50: F30 Accumulated Value Hold

    ■ [F30] Accumulated value hold This function enables the accumulated flow value to be stored in permanent memory every 2 or 5 minutes. In the default setting, the accumulated flow value is not held when the power supply is turned off. ...

  • Page 51: F31 Orientation Correction Function

    ■ [F31] Orientation correction function This function can correct a display error of flow caused by the mounting orientation. If the product is mounted vertically, the displayed flow rate will be seriously affected around a zero flow rate and when the fluid pressure is high. This function can be used to reduce the display error that occurs when the product is mounted vertically.

  • Page 52: F80 Display Off Mode

    ■ [F80] Display OFF mode This function will turn the display OFF if no buttons are pressed for 30 seconds. <Operation> Press the button in function selection mode to display [F80]. [F80] and [dSP] are displayed in turn. Press the button.

  • Page 53: F81 Security Code

    ■ [F81] Security code A security code can be selected, which must be entered to unlock the keys. For the key-lock function, refer to page 58. <Operation> Press the button in function selection mode to display [F81]. [F81] and [Pin] are displayed in turn. Press the button.

  • Page 54: F90 Setting Of All Functions

    ■ [F90] Setting of all functions All functions can be set one after the other, without having to select each one separately in function selection mode. <Operation> Press the button in function selection mode to display [F90]. [F90] and [ALL] are displayed in turn. Press the button.
  • Page 55 Order of function settings Order Function Applicable model [r EF] Reference condition All models [Un i] Unit selection function Model with unit selection function [oU1] OUT1 Output mode All models [ 1ot ] OUT1 Switch operation All models ] OUT1 Set value All models ] OUT1 Hysteresis All models...

  • Page 56: F98 Output Check

    ■ [F98] Output check The operation of the output can be checked by switching the output ON/OFF by pressing a button, without the need for a flow of fluid. <Operation> Press the button in function selection mode to display [F98]. [F98] and [tES] are displayed in turn.

  • Page 57: F99 Reset To The Default Settings

    ■ [F99] Reset to the default settings The product can be returned to the default settings. <Operation> Press the button in function selection mode to display [F99]. [F99] and [ini] are displayed in turn. Press the button. Reset to the default settings [ini] and [the current set value] are displayed in turn.

  • Page 58: Other Functions

    Other Functions ●Peak/Bottom value display The maximum (minimum) flow from when the power was supplied to this moment is detected and updated. In peak/bottom display mode, the maximum (minimum) flow is displayed. For peak display, when the button is pressed for 1 second or longer, [the maximum flow] and [Hi] are displayed in turn.
  • Page 59 ●Key lock The key lock function is used to prevent errors occurring due to unintentional changes of the set values. Valid operations when keys are locked When the button is pressed, the display will scroll through in the order of [LoC], [Set value] and [LoC]. And then return to measurement mode.
  • Page 60 <Operation-With security code input-> Make [F81] Security code valid in advance. Locking 1. Press and hold the button for 5 seconds or longer in measurement mode. [UnL] will be displayed.  : Keep pressing the button even when [F 0] is displayed. 2.
  • Page 61 Change of security code In the default setting, the security code is set to [000], but this can be changed to any number. <Operation> 1. When the key lock has been set, perform the key unlocking procedure (step 4). 2. After the display changes to [UnL], press and hold the buttons simultaneously for 5 seconds or longer.

  • Page 62: Maintenance

    Maintenance How to reset the product after a power cut or when the power has been unexpectedly removed The settings of the product are retained from before the power cut or de-energizing. The output condition also recovers to that before power cut or de-energizing, but may change depending on the operating environment.

  • Page 63: Troubleshooting

    Troubleshooting Troubleshooting If an operation failure of the product occurs, please confirm the cause of the failure from the following table. If a cause applicable to the failure cannot be identified and normal operation can be recovered by replacement with a new product, this indicates that the product itself was faulty. Problems with the product may be due to the operating environment (installation etc).
  • Page 64 Fault Possible cause Countermeasures No output. Incorrect wiring. Correct the wiring. Install a filter or mist separator on the IN side if there Foreign matter in the is a risk of foreign matter entering the product. sensor. If there is foreign matter on the mesh, remove it completely, taking care not to damage the product.

  • Page 65: Error Indication

    ■ Error indication Error Name Error code Description Measures The flow has exceeded the upper limit of the Reduce the flow. flow display range. Instantaneous flow error Fluid is flowing in the reverse direction by at Connect the fluid flow in the least -5% of the maximum rated flow value.

  • Page 66: Specification

    Specification ■ Specifications Model PFMB7201 Air, N Applicable fluid 1 (Air quality: ISO8573-1 1.1.2 to 1.6.2 Fluid Fluid temperature range 0 to 50 Detecting method Heating type sensor Rated flow range 2 to 200 L/min Instantaneous flow 2 to 210 L/min...
  • Page 67 Model PFMB7201 Output type Voltage output: 1 to 5 V, Current output: 4 to 20 mA Output impedance approx. 1 kΩ Voltage output Analogue Maximum load impedance: 600 Ω at 24 VDC Impedance 6 output Current output 300 Ω at 12 VDC 7...
  • Page 68 1: It is possible to satisfy the air quality class indicated in the specification using the pneumatic circuit below. Recommended pneumatic circuit example (Compressed air) 2: When using the accumulated value hold function, calculate the product life from the operating conditions, and use the product within its life.

  • Page 69: Characteristics Data

    ■ Characteristics data ●Analogue output Voltage output 1.04 V Current output 4 mA 4.16 mA 20 mA Minimum flow of Maximum flow of Model rated flow range rated flow range PFMB7201 2 L/min 200 L/min -68- No.PF※※-OMO0005-D...
  • Page 70 ●Flow adjustment needle revolution - Flow characteristics ●Pressure loss -69- No.PF※※-OMO0005-D...
  • Page 71 ●Straight inlet piping length and accuracy (refernce value) The smaller the piping size, the more the product is affected by the straight piping length. The smaller the flow rate, the less the product is affected by the straight piping length. The straight piping length shall be 8 cm or longer in order to maintain ±3%F.S.

  • Page 72: Dimensions

    ■ Dimensions (in mm) PFMB7201-02 PFMB7201-N02 -71- No.PF※※-OMO0005-D...
  • Page 73 PFMB7201-02L PFMB7201-N02L -72- No.PF※※-OMO0005-D...
  • Page 74 PFMB7201S-02 PFMB7201S-N02 -73- No.PF※※-OMO0005-D...
  • Page 75 PFMB7201S-02L PFMB7201S-N02L -74- No.PF※※-OMO0005-D...
  • Page 76 PFMB7201-F02 -75- No.PF※※-OMO0005-D...
  • Page 77 PFMB7201-F02L -76- No.PF※※-OMO0005-D...
  • Page 78 PFMB7201S-F02 -77- No.PF※※-OMO0005-D...
  • Page 79 PFMB7201S-F02L -78- No.PF※※-OMO0005-D...
  • Page 80 PFMB7201-C8 -79- No.PF※※-OMO0005-D...
  • Page 81 PFM7B7201-C8L -80- No.PF※※-OMO0005-D...
  • Page 82 PFMB7201S-C8 -81- No.PF※※-OMO0005-D...
  • Page 83 PFMB7201S-C8L -82- No.PF※※-OMO0005-D...
  • Page 84 Connector cover (ZS-33-F) Attached the connector cover Panel cut-out dimensions Flow adjustment valve ＋0.5 None ＋0.5 With flow adjustment valve : Suitable for panel thickness of 1 to 3.2 mm. 1: These are the minimum dimensions for bottom entry piping type. If using straight entry piping type, the material of piping and tubing need to be taken into consideration when deciding panel cut-out spacing.
  • Page 85 Bracket (ZS-33-M) Bracket (ZS-33-MS) Lead wire with connector (ZS-33-D) -84- No.PF※※-OMO0005-D...
  • Page 86 4-14-1, Sotokanda, Chiyoda-ku, Tokyo 101-0021 JAPAN Tel: + 81 3 5207 8249 Fax: +81 3 5298 5362 http://www.smcworld.com Note: Specifications are subject to change without prior notice and any obligation on the part of the manufacturer. © 2012-2016 SMC Corporation All Rights Reserved No.PF※※-OMO0005-D...

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