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ER-QA-03E

Product catalog summary

Introduction
The ER-QA-03E ultra-thin quartz flexible accelerometer is designed for medium precision applications. It features a compact structure, offering excellent long-term stability, repeatability, dynamic response, vibration shock resistance, and high reliability. It is suitable for both static and dynamic testing, serving as a standard vibration and inclination sensor.

Features
The accelerometer incorporates a unique structural design and special circuitry, ensuring a linear relationship between output current and force or acceleration. Users can select appropriate sampling resistance for high precision output. A built-in temperature sensor allows for compensation of offset values and scale factors to mitigate ambient temperature effects.

Applications
The ER-QA-03E is applicable in various fields such as:

Dip tests for bridges, dams, oil wells, and coal mines
High-speed railway control
Stability control of ships

Specifications

Parameter	ER-QA-03E1	ER-QA-03E2	ER-QA-03E3
Range	±50 g	±50 g	±50 g
Threshold/Resolution	<5 μg	<5 μg	<5 μg
Bias	<5 mg	<7 mg	<10 mg
Scale factor	1.1~1.3 mA/g	1.1~1.3 mA/g	1.1~1.3 mA/g
Class II non-linearity	≤ ±20 μg/g²	≤ ±20 μg/g²	≤ ±20 μg/g²
Bias repeatability	<30 μg	<50 μg	<80 μg
Scale factor repeatability	<50 ppm	<80 ppm	<100 ppm
Bias temp coefficient	<20 μg/℃	<30 μg/℃	<30 μg/℃
Scale factor temp coefficient	<40 ppm/℃	<50 ppm/℃	<80 ppm/℃
Noise	≤5 mv	≤5 mv	≤5 mv
Bandwidth	>300 Hz	>300 Hz	>300 Hz
Vibration rectification error	<30μg/g²rms (50-500HZ)
Random vibration	20g@ 20-2000Hz
Installation error	<1500μrad
Operating temperature range	-55~96 ℃	-55~96 ℃	-55~96 ℃
Power voltage	±13~±18 V	±13~±18 V	±13~±18 V
Current	<20 mA	<20 mA	<20 mA
Temp. sensor	User customizable
Weight	<55 g	<55 g	<55 g
Size	Ф25 mm	Ф25 mm	Ф25 mm
Shell material	300 series stainless steel

Catalog excerpts

ERICCO INERTIAL TECHNOLOGY Introduction The ER-QA-03E ultra-thin quartz flexible accelerometer is a medium precision accelerometer with a unique structural size (short) design. The product has excellent long-term stability, repeatability, dynamic response performance, good vibration shock resistance and high reliability, which can be used for static and dynamic testing, and is also a standard vibration sensor and inclination sensor. The product adopts unique structural design and special circuit, the output current of the acceleration are linear, the user can choose the appropriate sampling resistance by calculation to achieve high precision output. The built-in temperature sensor can be used to compensate the offset value and scale factor to reduce the impact of ambient temperature according to user needs. Dip tests for Bridges, DAMS, oil Wells, coal mines High-speed railway control Stability control of ships Whatsapp/Wechat/Mob:8613992884879 Websit: www.ericcointernational.com E-mail: [email protected]

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