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HPM420L Low Power Consumption Level Transmitter

Level Range: 0～0.5…10mH2O

Output Signal: RS485

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HPM420L Low power consumption level transmitter - HIGHJOIN.pdf

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HPM420L low power consumption level transmitter uses high quality stable pressure sensor as the measurement element, it measures the static level pressure accurately which has direct ratio with liquid depth. Then converting the measurement value into standard RS485 signal through the signal conditioning circuit to achieve the measurement of liquid depth. This product has extremely low power consumption and long service life with lithium-ion battery. The product has display, and with RS485 signal output, it can be networked or embedded with wireless module implement wireless transmission.

Product Introduction

Application

Features

Technical Parameters

HPM420L low power consumption level transmitter uses high quality stable pressure sensor as the measurement element, it measures the static level pressure accurately which has direct ratio with liquid depth. Then converting the measurement value into standard RS485 signal through the signal conditioning circuit to achieve the measurement of liquid depth. This product has extremely low power consumption and long service life with lithium-ion battery. The product has display, and with RS485 signal output, it can be networked or embedded with wireless module implement wireless transmission.

Application

IoT
Water Treatment Industry
Groundwater, rivers, lakes
Ship

Features

Low Power Consumption
lithium battery inside product as supply
Local display
With RS485 signal output，easy adapted with wireless module
Special Anti-condensation design

Technical Parameters

Level Range	0～0.5…10mH₂O Notes：Can also use mH2O、inH2O、m、mm, etc. as unit Need to highlight the density of liquid to be measured when use length unit such as m、mm etc.
Overload	1.5 times of Full scale
Measuring Medium	Liquid which applicable with the contact material
Output Signal	RS485
Power Supply	Vs=3.1~8 VDC（lithium-ion battery inside ER14250，3.6V 1200mAh） Vs=5VDC （External power supply supported） Vs=24VDC （External power supply supported）
Power consumption	Standby current <20uA Date collection cycle 0~65535s Power Consumption: About 200uA with data collection cycle as 1s About 70uA with data collection cycle as 3s About 50uA with data collection cycle as 5s … Note：Longer data collection cycle, lower consumption
Accuracy	±0.5%FS
Long term stability	±0.25%FS/year
Medium temperature	-40～100℃

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