SCA220-C24H1G - VTI Technologies

Rev. 26 Aug 2004 VTI Technologies reserves the right to modify this speciﬁcation without prior

SCA220 Series

Stand Alone Accelerometer

FEATURES

• Stand alone accelerometer in plastic housing

• Available range:±2g

• Accurate over a wide temperature range -40°C ... +85°C

without any compensation

• Electrical connection with integrated connector

• Standard analogue output (ratiometric)

• Standard bracket and mating connector upon request

BENEFITS

• Excellent overload durability (1.5 m drop proof)

• Plastic housing makes the accelerometer IP6K9K

• Meet typical automotive EMC requirements

• Easy to use

APPLICATIONS

• Acceleration measurement

• Inclination measurement

• Motion measurement

Note 1. The measuring range is limited by the sensitivity and offset.

Note 2. Offset speciﬁed as Output @ 0g.

Note 3. Mounting position should be calibrated. See measuring positions.

Note 4. Vdd 5V, unless otherwise speciﬁed.

Note 5. The frequency response is determined by the sensing element’s internal gas damping.

The output has true DC (0Hz) response.

Note 6. The cross-axis sensitivity determines how much acceleration or inclination, perpendicular

to the measuring axis, couples to the output. The total cross-axis sensitivity is

the geometric sum of the sensitivities of the two axises which are perpendicular to the

measuring axis.

For customised product please contact VTI Technologies

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

Parameter Condition Min. Typ Max. Units

Supply voltage (1 4,5 5,5 V

Current consumption 2,0 4,0 mA

Analogue output load 10 mOhm

20 nF

Output Analogue Voltage

PERFORMANCE CHARACTERISTICS

Parameter Condition SCA220-C24H1G Units

Measuring range (1 ±2 g

Offset (2, 3, 4 Output at 0g @ 23 °C 2,5 V

Offset temperature error -40..85°C ±60 mg

Sensitivity (3 @ 0g (offset position) 1 V/g

Sensitivity temperature error (3 -40..85°C ±3 %

Non-linearity ±2g ±40 mg

Frequency response –3dB (5 45 Hz

Output noise 5 mVrms

Cross-axis sensitivity (6 ±4 %

Typical values unless otherwise speciﬁed.

Parameter Value Units

Over voltage protection(1 16 V

Reverse voltage protection 16 V

Acceleration (powered or non-powered) >20000 g

MEASURING DIRECTIONS

SCA220 Series

MECHANICAL SPECIFICATION MOUNTING

SENSOR DIMENSIONS

Acceleration in the direction of the arrow will increase the output voltage

Dimensions in mm.

VTI Technologies Oy

Myllynkivenkuja 6

P.O. Box 27

FI-01621 Vantaa

Finland

Tel. +358 9 879181

Fax +358 9 87918791

sales@vti.ﬁ

VTI Technologies Oy

Frankfurt Branch

Rennbahnstr. 72-74

D-60528 Frankfurt am Main

Germany

Tel. +49 69 6786 880

Fax +49 69 6786 8829

sales.de@vti.ﬁ

VTI Technologies, Inc.

One Park Lane Blvd.

Suite 804 - East Tower

Dearborn, MI 48126

USA

Tel. +1 313 425 0850

Fax +1 313 425 0860

sales@vtitechnologies.com

Sensor weight: 23 grams

Total weight: 100 grams (with bracket)

Protection class: IP6K9K (DIN 400050)

Metal part : Housing: PBT + 30% glass ﬁber

Bracket: Yellow passivated steel

Sensor mounting

Bracket 37052

Clip 37053

Bracket mounting

Screws: M6

Torque: 10 ± 2Nm

ELECTRICAL CONNECTION

Mating connector:

AMP 2-967642-1 MQS, Socket housing, SWS, 3 pos.assy

AMP 965907-1, Sn Plated socket terminal for 0.75mm2 wire

AMP 967067-1, wire seal, green silicone for ø1.4…1.9mm wire

Pin Function

1 Accsig (signal output)

2 GND

3 Vdd

FIN 1251000012

XXX XXXX XXX

SCA220-XXXXX

25.8

77.6

max.41.5

90 ±0.5

R26

CLIP ASSEMBLY-ONLY FOR INFORMATION

MEASURING DIRECTION

6.3

57±0.3

9.3

7.4