HSA-70	Ultrasonic level sensor
	Compact body that is chemical resistance and corrosion proof RS-232C interface and current output with 4 to 20mA are provided

Feature

• This sensor has applied "principle of echo" that sound reflects in a thing and comes on the contrary. It measures transmission time from projecting ultrasonic to receiving it and distance is measured.
  
• It is possible to measure even if condensing on transmission surface.
• It corresponds to chemical and corrosion-proof by united resin mold(polypropylene).
• It is easy connection system with water-proof connector.

Specifications

Model No.	HSA-70A	HSA-70B
Standard sensing length	0.5 to 5m(9.99m : stable water surface)	0.25 to 2m(4m : stable water surface)
Frequency of ultrasonic	50kHz	100kHz
Power source	12 to 24VDC(10 to 28V), 3W(Isolation power)
Detectable object	Powder object(Liquid object)
Beam angle	14°
Measuring precision	±0.25% full scale or 1cm(Bigger value)
Ambient temperature	-20 to 60 degrees C
Output	Warning output : NPN open-collector(30V or less, 100mA or less) Upper limit 1 point,Lower limit 1 point(isolation) 4-20mA current output RS-232C(9,600bps)
Installation	G2(PF2)
Body material	PP(Polypropylene)
Protective structure	IP65(IEC standard)
Weight	350g
Wiring cable	8 cores(0.3mm2) cable length 10m, detachable system with water-proof connector

Option

Body installation nut : LN-54(Neoflex)
Flange : Corresponding to JIS5K50A, t = 14, 130 PVC

External dimension

Output circuit

Pin No.	Colors	Functions
1	Red	Power source 12 to 24VDC(+)(10 to 28VDC, 3W)
8	Black	Power source 0V(-)
5	Yellow	Upper limit warning output(NPN open-collector)
6	White	Lower limit warning output(NPN open-collector)
4	Brown	Common(Common for upper/lower warning output)
2	Green	4-20mA output
7	Orange	RS-232C output(9,600bps)
3	Blue	GND
	Shield	Ground(Connect to blue wire)

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