U1A

Data Sheet
Force Transducer

Special features

− Tensile force / compressive

force transducer
− Nominal forces 10 N ... 50 N
− Integrated overload protection
− Side-force support
− Variable force introduction

Dimensions (in mm; 1 mm=0.03937 inches)

25 Coupling for knuckle eye (variant A)
M5 x 8 deep M3
5,5
Dimensional variation
5

5
in accordance with
10
14

DIN ISO 7168 − mK R 0,85

9,5
∅ 2,5
5
∅ 2,5 f7
SW19
∅9

M5 M5
SW19
a./f.11
63,2

SW19
6

6
50

Cable ∅ 5
45 6 m long
5

∅ 49,5

approx. 65
Variant A Variant B Variant C

B0248-3.1 en
Specifications
Type U1A
Accuracy class 0.1
Nominal force N 10 20 50
Nominal sensitivity Cnom mV/V 2
rel. sensitivity deviation dc % 0.2
rel. tensile-compressive sensitivity difference dzd % 0.4
rel. deviation from zero ds,o % 1
Rel. range of inversion (0.2Fnom to Fnom) u % 0.15
Linearity deviation dlin % 0.1
Temperature effect on the sensitivity/10 K
by reference to nominal sensitivity TKC % 0.1
Temperature effect on the zero signal/10 K
by reference to nominal sensitivity TK0 % 0.05
Effect of eccentricity / mm dE % 0.1
Rel. creep over 30 min dcrF+E % "0.06
Input resistance Re Ω u345
Output resistance Ra Ω 300 − 400
Isolation resistance Ris Ω >5 x 109
Reference excitation voltage Uref V 5
Operating range of the excitation voltage BU,G V 0.5 ... 6
Nominal temperature range Bt,nom oC −10 ... +50
Operating temperature range Bt,G oC −20 ... +50
Storage temperature range Bt,S oC −30 ... +60
Reference temperature tref oC +23
Max. operational force (FG) % 120
Limit force (FL) % 1000 500 200
Breaking force (FB) % 2000 1000 400
Static lateral limit force (FQ) % 200 100 40
Nominal displacement Snom mm 0.28 0.21 0.2
Fundamental resonance frequency fG Hz 300 450 700
Weight kg 0.3
Rel. permissible vibrational stress Frb % 70
Degree of protection to DIN EN 60529 IP 40

Knuckle eyes Options

ZGO ZGU Code Option 1: Code Option 2: Force introduction
Measuring A with pin
range
B with M5 external thread
010N 10 N C with M5 internal thread
020N 20 N
050N 50 N Code Option 3: Cable type
K with cable, 6 m, free ends
M with cable, 6 m, MS connector
D with cable, 6 m, D15 connector
Bestell-Beispiel
K−U1A− 0 1 0 N − A K

Scope of supply: transducer and corresponding force introduction piece, coupling for knuckle eye for Code A
Accessories: (not included in scope of supply)
Upper knuckle eye for coupling M3 (Option A), 1−U1/5kg/ZGO
Upper knuckle eye for internal thread M5 (Option C), 1−U1/5kg/ZGU
Lower knuckle eye for internal thread M5 (all types), 1−U1/5kg/ZGU

Modifications reserved. Hottinger Baldwin Messtechnik GmbH

All details describe our products in general form only. They
are not to be understood as express warranty and do not
constitute any liability whatsoever.
Im Tiefen See 45, D-64293 Darmstadt, Germany
Tel.: +49 6151 803−0; Fax: +49 6151 8039100
B0248-3.1 en E−mail: support@hbm.com www.hbm.com