SIWAREX WL 250 ST-S SA

Possible applications

• Voltage and pressure applications
• Suspended scales
• Container weighers
• Hybrid scales

Model

S-Type

Rated load E_max

• 50 kg (110.23 lb)
• 100 kg (220.46 lb)
• 250 kg (551.16 lb)
• 500 kg (1 102.31 lb)
• 1 t (0.98 tn. L.)
• 2.5 t (2.46 tn. L.)
• 5 t (4.92 tn. L.)
• 10 t (9.84 tn. L.)

Accuracy class according to OIML R60

C3

Max. load cell verification intervals n_lc

3 000

Min. load cell verification intervals V_min

• E_max = 50, 100 kg

E_max/7000

• E_max = 0.25, 0.5, 1, 2.5 t

E_max/10 000

• E_max = 5, 10 t

E_max/12 000

Combined error F_comb

± 0.02 % C_n

Repeatability F_v

± 0.02 % C_n

Creep error F_cr

• 30 min

± 0.02 % C_n

Temperature effect

• Zero signal T_K0

0.017 % C_n/5 K

• Characteristic value T_Kc

0.014 % C_n/5 K

Min. dead load E_min

0 kg

Safe load limit L_u

150 % E_max

Ultimate load L_d

300 % E_max

Safe side load L_Iq

100 % E_max

Rated measuring path h_n

• E_max = 50, 100 kg

0.18 mm

• E_max = 250, 500 kg

0.24 mm

• E_max = 1 t

0.37 mm

• E_max = 2.5, 5 t

0.8 mm

• E_max = 10 t

0.57 mm

Rated characteristic value C_n

3.0 ± 0.008 mV/V

Tolerance D₀ of zero signal

± 1.0 % C_n

Input resistance R_e

430 ? ± 4 ?

Output resistance R_a

350 ? ± 3.5 ?

Insulation resistance R_is

5 000 M? at 50 V DC

Rated temperature range B_tn

-10 … +40 °C (14 ... 104 °F)

Operating temperature range B_tu

-35 … +65 °C (-31 ... +149 °F)

Storage temperature range B_ts

-35 … +65 °C (-31 ... +149 °F)

Sensor material (DIN)

Stainless steel

Maximum tightening torque for fixing screws

• E_max = 50, 100 kg

25 Nm

• E_max = 250, 500 kg, 1 t

75 Nm

• E_max = 2.5, 5 t

450 Nm

• E_max = 10 t

1 450 Nm

Degree of protection to EN 60529; IEC 60529

IP67

Cable connection

Function

Color

• EXC + (supply +)

Red

• EXC – (supply -)

Black

• SIG + (measured signal +)

Green

• SIG – (measured signal -)

White

• Screening

Transparent