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Sierra Monitor Corporation PF2A7H manual

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Table of contents for the manual

  • Page 1

    URL http : // www.smcworld.com FOR AIR Digital Flow Switch Large Flow Rate T ype Instruction Manual PF2A7 □ H Series[...]

  • Page 2

    SAFETY 2 Model Indication Method 4 Name and Functions of Individual Parts 5 Installation 6 Example of Internal Circuit and Wiring 8 Setting 10 OUT1 Output Specifications 11 Function Setting 13 Other Functions 18 Specification 20 Full View with Dimensions 22 Thank you for purchasing the SMC PF2A7 □ H Series Digital Flow Switch. Please read this ma[...]

  • Page 3

    3 2 SAFETY IMPORT ANT MESSAGES W ARNING NOTE Indicates a potentially hazardous situation which could result in death or serious injury if you do not follow instructions. Gives you helpful information. Read this manual and follow its instructions. Signal words such as WARNING and NOTE will be followed by important safety information that must be car[...]

  • Page 4

    5 4 Unit Specification No Symbol : Unit selection function provided - M: SI units fixed Lead Wire Specification No Symbol: Lead wire with connector 3m N: None Lead wire with connector PF2A7 H - - Flow Rate Range 03: 150 to 3000 /min 06: 300 to 6000 /min 12: 600 to 12000 /min NOTE1: The revised Measurement Law of Japan does not allow use of meters o[...]

  • Page 5

    7 6 Nominal size of screws Rc 1 36 to 38 Rc 1 ・ 1/2 48 to 50 Rc 2 48 to 50 Before you mount a flow switch, read "SAFETY" and "Installation" described in this chapter carefully to obtain safe and correct measurement. Mounting ● Use this flow switch under the specified operating pressure range. ● Use this flow switch under t[...]

  • Page 6

    9 8 OUT1 Analog Output Load Load 24VDC ＋ − 1 4 2 3 Brown Black White Blue Main Circuit Analog Output OUT1 ＋ − Load Load Brown Black Blue White 1 4 2 3 24VDC Main Circuit Connector pin number Min. measured flow Max. measured flow 1 5 Analog Output [ Ｖ ] 4 20 Analog Output [ ｍＡ ] Instantaneous flow [ / min ] Output Specification When th[...]

  • Page 7

    11 10 Note 1) 　　 ( Display unit selection mode ) does 　　　 not exist for -M ( SI unit fixed ) type. Note 2) 　 　 ( Flow rate setting mode) does not exist when selecting during 　　 ( Output spec. selecting mode ). ● MODE ● SE T ● SE T ● MODE ● SE T ● MODE ● SE T ● MODE ● SE T ● MODE ● SE T ● MODE ● SE T ● M[...]

  • Page 8

    13 12 ［ P ］ Output mode 50ms 50ms Time Time ON OFF ON OFF note2 ) ［ n ］ Display Intrgrated flow 100 /pulse note2 ) Integrated flow Integrated flow ON OFF n_3 ON OFF P_3 ［ n ］ ［ P ］ Output mode 10.0 f t 3 /pulse U_1 U_2 Flow rate per pulse note1) OUT1 Output Specifications (continue) Integration switch output (oU1_1) See "Flow r[...]

  • Page 9

    Display unit selecting mode (When Unit spec. in Model Indication is w/o "M") Unit can be selected from that of Instantaneous flow and integrated flow. The unit is changed by pressing ▲ button. It will be set up if the button is pressed. If the button is pressed instead of the button, it will change to 「 F_3 」 . ● SE T ● MODE ●[...]

  • Page 10

    17 16 Function Setting (continue) 7. Flow rate setting mode Input set value. Input method depends on OUT1 output specification. It does not go into Flow rate setting mode when the integration pulse output is selected as OUT1. Instantaneous switch output (oU1_0) 1. Press button to input n_1(P_1) set value. 「 n_1 」 and the set value appears in tu[...]

  • Page 11

    19 18 Error Display and T roubleshooting This function displays error location and nature. When a problem or an error occurs, take the following actions. Flow display check Check integrated flow when instantaneous flow is selected Integrated flow is displayed only during ▼ button is pressed. (Returns to instantaneous flow when releasing ▼ butto[...]

  • Page 12

    21 20 Specification *1) With a unit selection function ( Without a unit selection function, fixed to SI unit [ /min or , m 3 , m 3 × 10 3 ]) *2) Flow rate indication is possible to be switched to normal condition of 0 ℃ /101.3kPa and standard condition of 20 ℃ /101.3kPa/65%RH (ANR) PF2A703H Flow Rate Indication/Ra nge Flow rate indication rang[...]

  • Page 13

    22 (42.2) FLOW SWITCH 2 - G 4 - I Thred depth J A F H 55 B 40 D E C 60 Flow direction Model No. PF2A703H 55 PF2A706H PF2A712H 65 75 A 160 180 220 B 40 45 55 C 92 104 114 D 67 89 E 55 65 75 F 36 46 56 H M5 × 0.8 M6 × 1 M6 × 1 I 8 9 9 J 79 PF2A703H Rc 1, NPT 1, G 1 PF2A706H PF2A712H Rc 1 ･ 1/2, NPT 1 ･ 1/2, G 1 ･ 1/2 Rc 2, NPT 2, G 2 Thred G[...]