HLS-442 datasheet(2/22 Pages) AMSCO

Part #	HLS-442

Description	Automotive Hydrogen Leak Sensor

PDF	22 Pages

Scroll/Zoom	100%

Manufacturer	AMSCO [ams AG]

Direct Link	http://www.ams.com

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2 / 22 page

Page 2

ams Datasheet

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[v1-00] 2015-Mar-30

HLS-442 − General Description

Applications

Detection of hydrogen gas leaks in hydrogen powered vehicles

by installing the sensor

• in the cabin ceiling

• under the hood of the engine compartment

• beneath the trunk lid of hydrogen powered vehicles

Detection of hydrogen gas in and around hydrogen fueling

stations

Block Diagram

The functional blocks of this device for reference are

shown below:

Figure 2:

HLS-442 Block Diagram

Timer

μController

Watchdog

Power Supply

Output Switch

Connector

Heater Switch

LDO Voltage Regulation

Heater Switch

EMC Filter

Protection

Overvoltage, reverse polarity

Resistor

H2-Sensor

Quantity (TC)

H2-Sensor

Plausibility (FE)

HLS-442 Datasheet(PDF) 2 Page - ams AG