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FM-255-AR2 | Integrated Display Type Digital Flow Sensor FM-200(Discontinued)

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Discontinued
July 31, 2022

Product Number	FM-255-AR2
Part Number	FM-255-AR2
Product	Integrated Display Type Digital Flow Sensor
Details	Aluminum body type
Product name	Integrated Display Type Digital Flow Sensor FM-200(Discontinued)

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Spec Detail As of July 31, 2022

Item	Specifications
Product Number	FM-255-AR2
Part Number	FM-255-AR2
Full scale flow rate	500 ℓ/min. (Note):Converted to volumetric flow at +20 ℃ +68 ℉ and 1 atmospheric pressure (101 kPa).
Instant flow rate:Display range	-550 to +550 ℓ/min. (Note):The display flow rate range is the case when setting to bi-direction at the flow direction setting. When the flow direction is set to one-side forward direction or one-side reverse direction, the negative side of the display flow rate range shows 10 % of the full-scale (F.S.).
Instant flow rate:Setting and display resolution	1 ℓ/min.
Integrated flow rate:Display range	±9999999 ℓ (Note):The display flow rate range is the case when setting to bi-direction at the flow direction setting. When the flow direction is set to one-side forward direction or one-side reverse direction, the negative side of the display flow rate range shows 10 % of the full-scale (F.S.).
Integrated flow rate:Setting and display resolution	1 ℓ
Specified integrated value	5 ℓ
Port size	Rc1/2 female thread
Weight	Net weight: 155 g approx., Gross weight: 220 g approx.
Rated pressure range	-0.09 to +0.7 MPa
Pressure withstandability	1 MPa
Applicable fluid	Clean air, compressed air, nitrogen gas (Note):The clean air complies with JIS B 8392-1.1.1 to 5.6.2, and the compressed air complies with JIS B 8392-1.1.1 to 1.6.2.
Supply voltage	12 to 24 V DC ± 10 % Ripple P-P10 % or less
Current consumption	Normal mode: 60 mA or less, ECO mode: 40 mA or less
Comparative output	NPN open-collector transistor ・Maximum sink current: 50 mA or less ・Applied voltage: 26.4 V DC or less (between comparative output and 0 V) ・Residual voltage: 2.4 V or less (at 50 mA sink current)
Comparative output:Output modes	Output OFF mode, window comparator mode, hysteresis mode, integrated output mode, integrated pulse output mode
Comparative output:Short-circuit protection	Incorporated
Comparative output:Hysteresis	Window comparator mode: 1 to 8 % F.S. approx. (variable) (Factory settings: approx. 1 % F.S.), Hysteresis mode: Variable (minimum 1 digit)
Comparative output:Response time	50 ms, 80 ms, 120 ms, 200 ms, 400 ms, 800 ms, 1,500 ms, selectable by key operation
Analog voltage output	Output voltage: 1 to 5 V, Output impedance: 1 kΩ approx. [Refer to "Analog voltage output" for more details.]
Repeatability	Within ±1 % F.S.
Accuracy assurance range	Bi-direction : -100 to -3 % F.S., +3 to +100 % F.S. One-side direction : +3 to +100 % F.S. (Note):Take care that if fluid flows in the vicinity of zero-point which is out of the accuracy assurance range, the instant flow rate value may forcibly display "zero", or the integrated flow display value may not be counted up, or the integrated pulse output may not be outputted.
External input	ON voltage: 0 to +0.4 V OFF voltage: +5 V to +V, or open Input time: 80 ms or more
Linearity	Within ±3 % F.S. (Ambient temperature +25 ℃ +77 ℉, flow rate range 3 to 100 % F.S., atmospheric criteria on secondary side)
Display	4 digits + 4 digits 2-color LCD display (Display refresh rate: 250 ms, 500 ms, 1,000 ms, selectable by key operation)
Protection	IP40 (IEC)
Ambient temperature	0 to +50 ℃ +32 to +122 ℉ (No dew condensation allowed), Storage: -10 to +60 ℃ +14 to +140 ℉
Ambient humidity	35 to 90 % RH, Storage: 35 to 90 % RH
Voltage withstandability	1,000 V AC for one min. between all supply terminals connected together and enclosure (Excluding the aluminum body type)
Insulation resistance	10 MΩ, or more, with 500 V DC megger between all supply terminals connected together and enclosure (Excluding the aluminum body type)
Vibration resistance	10 to 150 Hz frequency, 0.75 mm 0.030 in double amplitude or 49 m/s² max. acceleration, in X, Y and Z directions for two hours each
Shock resistance	100 m/s² acceleration (10 G approx.) in X, Y and Z directions three times each
Temperature characteristics	Within ±0.2 % F.S./℃ (+25 ℃ +77 ℉ criteria, +15 to +35 ℃ +59 to +95 ℉ ambient temperature range)
Pressure characteristics	Within ±5 % F.S. (-0.09 to +0.7 MPa, +25 ℃ +77 ℉, atmospheric criteria on secondary side)
Enclosure earthing	Floating (Note):As a varistor (clamping voltage: approx. 40 V) is connected to the aluminum body type, do not apply voltage higher than the rated voltage of the sensor.
Material	Enclosure: ABS, Body: Polyamide (Aluminum body type: Aluminum), Switch: EPDM, Display: Acrylic, Mounting screw part (Resin body type): Brass Current plate / Port filter: Stainless steel (used for the gas contact area), Sensor chip: Silicon, Gasket: Fluorine rubber
Connecting method	Connector
Cable length	Total length up to 10 m 32.808 ft is possible with 0.3 mm2, or more, cable.
Accessories	CN-F15-C1 (Connector attached cable 1 m 3.281 ft): 1 pc.