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Features at a Glance

Simple operation via the display
Measurement independent of flow direction
Installation in any position
Highest precision of its class
Display can be switched between flow and medium temperature
Temperature of the medium: 0 ... 100° C (140° C for 24 hours without current measurement)

FFAF029 Flow Sensor

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wenglor UniFlow flow sensors measure the flow rate of aqueous and oily media in closed piping systems. UniFlow flow sensors are very easy to operate thanks to the integrated display. The highly visible switching status display enables the rapid localization of affected sensors for maintenance processes.

Features at a Glance

Simple operation via the display
Measurement independent of flow direction
Installation in any position
Highest precision of its class
Display can be switched between flow and medium temperature
Temperature of the medium: 0 ... 100° C (140° C for 24 hours without current measurement)

Technical data

Sensor-specific data
Selectable measuring range	10 ... 300 cm/s
Measuring range 1	10 ... 150 cm/s
Setting range 1	15 ... 150 cm/s
Measuring range 2	20 ... 300 cm/s
Setting range 2	30 ... 300 cm/s
Medium	Water
Measuring error (total)	2 %
MTTFd (EN ISO 13849-1)	766.91 a
Switching Hysteresis	5 %
Temperature gradient	30 K
Response time in case of temperature jump	10 s

Environmental conditions
Temperature of medium	0 ... 100 °C
Temperature of the medium, short-term	140 °C
Ambient temperature	-20 ... 70 °C
Pressure Resistance	60 bar
EMC	DIN EN 60947-5-9
Shock resistance per DIN IEC 68-2-27	30 g / 11 ms
Vibration resistance per DIN IEC 60068-2-6	20 g (10...2000 Hz)

Electrical Data
Supply Voltage	16 ... 32 V DC
Current Consumption (Ub = 24 V)	60 mA
Number of Switching Outputs	1
Analog Output	4...20 mA
Signal source	Flow
Response Time	1 ... 5 s
Relay Output/Switching Current (24 VDC)	< 1 A
Current Output Load Resistance	< 500 Ohm
Short Circuit Protection	yes
Reverse Polarity Protection	yes
Protection Class	III

Mechanical Data
Setting Method	Menu
Housing Material	Plastic, PBT Plastic, PC
Material Control Panel	Polyester
Material in contact with media	Stainless steel, V4A (1.4404 / 316L) Stainless steel, V4A (1.4435/316L) Rubber, FKM
Degree of Protection	IP67 *
Connection	M12 × 1; 5-pin
Process Connection	G 1/2"
Process Connection Length (PCL)	47 mm
Probe Length (PL)	10 mm
Weight	275 g