FN4070
Seat Belt Buckle Sensor

SPECIFICATIONS•

Ranges from 1 kN to 50 kN (200 to 10k lbf)

•Crash-testing•

Compatible with most seat belt anchors•

Easy and economical maintenance•Accuracy ±0.5% FS

The sensor FN4070 measures the effort
generated on the anchor point of seat belts during crashtests.

FEATURES••••

Detachable tongue and cable
Tension only
Very robust for crash
Easy cable replacement for customer

Designed with a replaceable tongue, the load cell
can be easily and quickly re-used.

APPLICATIONS•••

Crash test on-board equipment
Security absorbers
Parachute belt and anchor testingIts cable output can be renewed by the customers
and technicians to allow a reactive and cost-effective inhouse maintenance of the device.
A similar product, FN4080, can measure lower
ranges down to 250N.
With many years of experience as a designer andmanufacturer of sensors, TE CONNECTIVITY, often
works with customers to design or customize sensors for
specific uses and testing environments.
On request, Instruction documents can beprovided to ease the selection and use of our sensors andprovide helpful tips.

SENSOR SOLUTIONS /// FN4070_en03/2016

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Seat Belt Buckle Sensor

STANDARD RANGES
Ranges in N (FS)

1k

5k

10k

25k

50k

Ranges in Lbf (FS)

200

1k

2k

5k

10k

PERFORMANCE SPECIFICATIONS (typical values at temperature 23±3°C)
Parameters
Operating Temperature Range (OTR)-20 to 80 °C [-4 to 176 °F]

Compensated Temperature Range (CTR)

0 to 60ºC [32 to 140°F]

Zero Shift in CTR<0.5% F.S. /50ºC [/100 F°]

Sensitivity Shift in CTR<1 % of reading /50 °C [/ 100°F]

Over-Range
Without Damage

1.5 x F.S.

Without Destruction

3 x F.S.

Accuracy
Combined Non-Linearity & Hysteresis<±0.5% F.S

Electrical Characteristics

ModelFN4070

Supply Outage

10Vdc

Sensitivity “FSO”

2mV/V

Zero Offset<±5 %FS

Insulation under 50Vdc≥100MΩ

Notes
1. Shielded Φ3 cable with 4 wires (AWG36/28), standard length 2 m [6.5 ft]
2. Material: Body in stainless steel or aluminium alloy depending on F.S.
3. Protection Index IP50 (other levels available on request)
4. CE conformance according to EN 61010-1, EN 50081-1, EN 50082-1

SENSOR SOLUTIONS /// FN4070_en

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FN4070
Seat Belt Buckle Sensor

DIMENSIONS & WIRING SCHEMATIC (IN METRIC AND IMPERIAL)
Wiring Schematic

Dimensions in mm [inch]
Full Scale Range in N
[in Lbf]

1k
[200]

5k
[1k]

10k
[2k]

25k
[5k]

50k
[10k]

A

36 [1.42]

50 [1.97]

50 [1.97]

61 [2.40]

92 [3.62]

B

24 [0.94]

28 [1.10]

28 [1.10]

37 [1.46]

55 [2.17]C

12 [0.47]

15 [0.59]

15 [0.59]

19 [0.75]

29 [1.14]D

6.2 [0.24]

8.2 [0.32]

8.2 [0.32]

12.2 [0.48]

18.5 [0.73]

E

3 [0.12]

6 [0.24]

6 [0.24]

8 [0.31]

12 [0.47]

F

13 [0.51]

15 [0.59]

15 [0.59]

24 [0.94]

37 [1.46]

G

30.5 [1.20]

39.5 [1.56]

39.5 [1.56]

50.5 [1.99]

75.5 [2.97]

H

7 [0.28]

8 [0.31]8 [0.31]

12 [0.47]

18.5 [0.73]

I

24 [0.94]

30 [1.18]

30 [1.18]

30 [1.18]

40 [1.57]

J

5.2 [0.20]

8.2 [0.32]

8.2 [0.32]

8.2 [0.32]

12.2 [0.48]

MaterialAluminumSENSOR SOLUTIONS /// FN4070_en

Stainless Steel

03/2016

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Seat Belt Buckle Sensor

OPTIONS
L00M: Additional cable length option, replace “00” with total length in meters

ORDERING INFORMATION

FN4070

-10KN

-/L5M
Options (L00M, ..)Range in Newton
Model

NORTH AMERICAEUROPE

ASIA

Measurement Specialties, Inc.,a TE Connectivity Company
Vibration Design Center
32 Journey - Suite 150
Aliso Viejo, CA 92656
United States USA
Tel: 1-949-716-0877
Fax: 1-949-916-5677
CustomerCare.lcsb@te.com

Measurement Specialties (Europe), Ltd.
a TE Connectivity Company
26 Rue des Dames
78340 Les Clayes-Sous-Bois, France
Tel: +33 (0) 130 79 33 00
Fax: +33 (0) 134 81 03 59
CustomerCare.lcsb@te.com

Measurement Specialties (China), Ltd.,a TE Connectivity Company
No. 26 Langshan Road
Shenzhen High-Tech Park (North)Nanshan District, Shenzhen 518057 China
Tel: +86 755 3330 5088
Fax: +86 755 3330 5099
CustomerCare.shzn@te.com

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Measurement Specialties, Inc., a TE Connectivity company.
Measurement Specialties, TE Connectivity, TE Connectivity (logo) and EVERY CONNECTION COUNTS are trademarks. All other logos, products and/or company names referred toherein might be trademarks of their respective owners.
The information given herein, including drawings, illustrations and schematics which are intended for illustration purposes only, is believed to be reliable. However, TE Connectivity makes
no warranties as to its accuracy or completeness and disclaims any liability in connection with its use. TE Connectivity‘s obligations shall only be as set forth in TE Connectivity‘s StandardTerms and Conditions of Sale for this product and in no case will TE Connectivity be liable for any incidental, indirect or consequential damages arising out of the sale, resale, use ormisuse of the product. Users of TE Connectivity products should make their own evaluation to determine the suitability of each such product for the specific application.
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SENSOR SOLUTIONS /// FN4070_en

All Rights Reserved.

03/2016

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