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Integrated Display Type Digital Flow Sensor FM-200 (Discontinued Products)

I/O Circuit and Wiring diagrams

FM-2□

NPN output type

I/O circuit diagram

FM-2□ I/O circuit diagram

Notes:

1) As for the aluminum body type, varistor (clamping voltage approx. 40 V) is connected between the internal power circuit and the metal body to prevent breakdown of the sensor. Connect the metal body to +V of power supply or to frame ground (F.G.) of a device that is connected to 0 V. High potential and insulation resistance tests between the internal power circuit and the metal body must not be done.
2) Short-circuit protection is not incorporated into the analog voltage output. Do not connect the power supply or capacitive load directly to the analog voltage output.
Symbols・・・ D1 to D4 : Reverse supply polarity protection diode
Tr1,Tr2 : NPN output transistor
Tr3 : PNP input transistor

Wiring diagram

FM-2□ Wiring diagram

*1: When using CH2 as a comparative output 2
*2: When using CH2 as an external input

Analog voltage output

<Bi-direction detection>

FM-2□ Analog voltage output Bi-direction detection

<One-side detection>

FM-2□ Analog voltage output One-side detection

FM-2□-P

PNP output type

I/O circuit diagram

FM-2□-P I/O circuit diagram

Notes:

1) As for the aluminum body type, varistor (clamping voltage approx. 40 V) is connected between the internal power circuit and the metal body to prevent breakdown of the sensor. Connect the metal body to +V of power supply or to frame ground (F.G.) of a device that is connected to 0 V. High potential and insulation resistance tests between the internal power circuit and the metal body must not be done.
2) Short-circuit protection is not incorporated into the analog voltage output. Do not connect the power supply or capacitive load directly to the analog voltage output.
Symbols・・・ D1 to D4 : Reverse supply polarity protection diode
Tr1,Tr2 : PNP output transistor
Tr3 : NPN input transistor

Wiring diagram

FM-2□-P Wiring diagram

*1: When using CH2 as a comparative output 2
*2: When using CH2 as an external input

Analog voltage output

<Bi-direction detection>

FM-2□-P Analog voltage output Bi-direction detection

<One-side detection>

FM-2□-P Analog voltage output One-side detection

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