Hottinger Baldwin Messtechnik U2A User Manual

U2A...

Load cell

Max. capacities:
50kg...20t

Dimensions (in mm; 1mm = 0.03937 inches)

U2A, Max. capacities 50kg...20t; U2-E, Max. capacities100kg...20t

Special features

• Load cells made of
corrosion-resistant materials

• Suitable for scales according to
OIML R60 up to 1000d

• Six wire circuit

• Low profile

• For tensile loads

• Meets EMC requirements

according to EN 45 501

• Options available:

-- Explosion-proof model

-- Service temperature range

up to 120°C [ 248°F]

View from above

a.f.

a.f.

Max. cap. [t] A

0.05...1 50 72 21 24 22 5*) M12 6 19 20 35

2 90 112 33 38 25 10.6 M20x1.5 10 30 30 50

5 100 141 40 47 25 13.2 M24x2 12 36 30 50

10 135 197 68 67 26 19 M39x2 19 60 30 50

20 155 232 82 85 26.5 24.2 M48x2 22 70 30 50

*)

with U2A/1t: 7.4mm

-0,2

B C E K L

approx. 18.5

min

M O a.f. X Y

Data sheet D 21.U2A.2e

Technical Data

Typ e U2A

Accuracy class 0.2 0.1 D1

Max. numbers of load cell verific. interv. (nLC) -- -- 1000

Max. capacity (E

Minimum load cell verification interval (v

Sensitivity (Cn) mV/V 2

Tolerance on sensitivity

with tensile loads

with compressive loads % <+1.50 <+0.50 <+0.50

Temperature effect on sensitivity (TKC)

in nominal temperature range
in service temperature range

Temperature effect on zero balance (TK0)

in nominal temperature range
in service temperature range

Hysteresis error (dhy) % <+0.15 <+0.05

Non-linearity (d

Creep (dcr)over30min. % <+0.06 <+0.05

Input resistance (RLC) Ω

Output resistance (R0) Ω

Reference excitation voltage (U

Nominal range of excitation voltage (Bu) V 0.5...10 0.5...12

Insulation resistance (R

Nominal temperature range (BT)

Service temperature range (Btu)

Storage temperature range (Btl)

Safe load limit (EL) %

Breaking load (Ed) %

Lateral load limit (Elq) %

Permissible dynamic load (F

(peak to peak according to DIN 50100)

Protection class (IP) to EN 60 529 (IEC 529) IP67

Material: Measuring body Stainless steel

1)

Optionally available with extended service temperature range.

) kg

max

) -- -- 0.0286

min

t

50

100, 200, 500

--

10, 20

% <+0.20 <+0.20

%/10K
%/10K

%/10K
%/10K

) % <+0.20 <+0.10 <+0.05

lin

<+0.05

0.10

<+

<+0.05

0.10

<+

340...450
356+0.2

) V 5

ref

) GΩ >5

iso

oC[o

F] -10...+40 [14...104]

oC[o

F] -30...+85 (-30...+120)1)[-22...185] [-22...248]

oC[o

F] -50...+85[-58...185]

130 150

300

25

100 160

srel

from

max. capac.

from

max. capac.

from

max. capac.

)

%

from

max. capac.

Cable gland Nickel plated brass, Silicone

Cable sheath Thermoplast. elasomere

500

1, 2, 5

<+0.05

0.10

<+

<+0.04

0.10

<+

Mechanical values

Max. capacity [t] Deflection at max. capacity

0.05 <0.1 0.8 3

0.1 <0.1 0.8 3

0.2 <0.1 0.8 3

0.5 <0.1 0.8 3

1 <0.1 0.8 3

2 <0.07 2.9 6

5 <0.07 4.3 6

10 <0.09 10.7 12

20 <0.09 15.9 12

(s

), approx. [mm]

nom

Weight (G), approx. [kg] Cable length [m]