Azbil North America - HPQ-T PIPE MOUNTED, SELF-CONTAINED LIQUID SENSOR

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HPQ-T PIPE MOUNTED, SELF-CONTAINED LIQUID SENSOR

Description

HPQ-T PIPE MOUNTED, SELF-CONTAINED LIQUID SENSOR

Overview

The HPQ-T sensor is designed specifically for liquid level detection by non-contact methods in clear or very translucent pipes. The sensor is mounted on a pipe that is between 3 to 7mm or 8 to 13mm in diameter and features an infrared light beam that becomes refracted and undetectable by the receiver when the liquid is present. The device runs on 10-28 VDC, has a response time of 2 msec max, has Light Operate/ Dark Operate Selectable output functioning, and has a 100 mA NPN or PNP output. There is minimal malfunction when air bubbles or water droplets are present. The indicator light is easy to view even when the sensors are gang mounted as all the controls and adjustments are located on the back side.

Specifications

Detection Method		Pipe-mounted Liquid level Detection
Catalog Listing		HPQ-T1, HPQ-T1-004	HPQ-T2, HPQ-T2-005
Supply Voltage		10 to 28Vdc (Max. 10% ripple)
Applicable Pipe Type		PFA transparent pipe, 1mm thick
Applicable Medium		Transparent or Opaque liquids
Repetitive detection Accuracy		1mm max.
Operation Mode		Light-ON/Dark-ON (by switch). Liquid Detection: Dark, Liquid Non-detection: Light
Output Form		NPN Transistor Output, Open Collector	PNP Transistor Output, Open Collector
Control Output	Switching Current	100mA max. (Resistive Load).
	Output Dielectric	30V max.
	Voltage Drop	Max. 1V (at 100mA switching current)
Response Time		Max. 2ms for operation and release
Light Emitter		Red LED (peak emission wavelength 950nm)
Indicator		Power (red when ON).
Amb. Light Immunity		Incandescent lamp: 1,000 lux max.
Oper. Temperature		-10 to +55°C
Protective Structure		IP50
Circuit Protection		Reverse connection protection circuit, Load short-circuit protection

Benefits

Small compact size and non-invasive sensing make installation and height adjustment easyMany products to select from - provides flexibility to user based on concernsThru scan principle where liquid refracts light beam - insures reliable detection Infrared beam can help penetrate slurries and other solids with similar detection effect as water/liquid. This can be used in mixing sections of the process. Light operate / dark operate selector switch provides output flexibility. Indicator lamp is easy to view even when sensors are gang mounted