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Ring Torsion Load Cell
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The RLC is a low profile, high performance stainless steel ring torsion type load cell. The fully welded constuction and glass-to-metal cableentry ensure that this product can be used successfully in harsh environments found in the food, chemical and allied process industries. This product is suitable for small and medium platform scales, hoppers and process weighing. This product meets the stringent Weights and Measures requirements throughout Europe and USA

  •  Capacity range: 250 kg to 60ton
  •  Low profile, stainless steel construction
  •  Hermetically sealed, IP66 and IP68; for 250 kg, 5 t and 10 t IP69K is available
  •  Meets OIML R-60 and NTEP 6000d
  •  Outputs are matched to ensure easy and accurate parallel connection of multiple load cells
  •  Optional
  •  ATEX certified versions are available for use in potentially explosive atmospheres
  •  Multi-interval and multiple-range versions are available

SPECIFICATIONS

PARAMETER

VALUE

UNIT

Standard capacities (Emax)

0.25, 0.5, 1, 2, 3.5, 5, 10, 28, 60

t

Accuracy class according to OIML

NTEP IIIL

D3

C3(3)

C6(2)

 

Maximum no. of verification intervals (nlc)

10000

 

3000

6000

 

Minimum verification interval

   

Emax/10000

Emax/15000

 

Minimum verification interval type MR

   

Emax/20000(1)

Emax/28000

 

Rated output (=S)

2 (1.75 for 0.25 t, 2.05 for 10 t)

mV/V

Output accuracy for multiple LC systems

0.01

±% mV/V

Zero balance

1.0 

±% FSO 

Combined error

0.0200

0.0300

0.0230

0.0115

±% FSO 

Creep error (30 minutes)

   

0.0245

0.0123

±% FSO 

Temperature effect on zero

(0.0010)

(0.0010)

0.0070

0.0045

±% FSO/5°C (/°F) 

Temperature effect on sensitivity (output) 

(0.0008)

(0.0008)

0.0050

0.0025

±% FSO/5°C (/°F) 

Minimum dead load

0

% Emax 

Maximum safe overload

150

% Emax 

Ultimate overload 

300

% Emax 

Maximum safe side load 

100% up to 10 t 
50% for 28 & 60 t 

% Emax 

Deflection at Emax 

0.12–0.20

mm 

Excitation voltage 

5 to 15 

Maximum excitation voltage 

30

V

Input resistance 

1110±50 (1100±50 for 0.25 t and 10 t) 
1075±100 for 28 t 
1350±100 for 60 t 

Ω 

Output resistance 

1025±25 (1025±50 for 0.25 t and 10 t) 
930±0.5 for 28 t
1175±0.5 for 60 t 

Ω 

Insulation resistance 

≥5000 (20 for 28 and 60 t) 

MΩ 

Compensated temperature range 

-10 to +40 

°C 

Operating temperature range 

-30 to +70 

°C 

Storage temperature range 

-50 to +80 

°C 

Element material (DIN) 

Stainless steel 1.4542 

 

Sealing (DIN 40.050 / EN60.529) 

IP66 and IP68; IP69K available for 250 kg, 5 t and 10 t 

 

Recommended torque on fixation bolts 

12 to 14 

N*m 

ATEX opt. for potent. explosive atmospheres 

II2G EEx ib IIC T4/T6, II2D, IIID T70 II3G nA II T4/T6 

 

(1)  Capacities of 28 and 60 ton Emax/15,000 approved to OIML C3 only

(2)  250 kg and 10 t capacities are approved to OIML C3 only. The maximum application range for 0.5 t is 0.75*Emax.

(3) The following accuracy classes are available (from 0.5 t to 10 t): C3MI6 and C3MI7.5. Minimum dead load output return is 1⁄2 Emax/6000 and 1⁄2 Emax /7500 respectively

FSO—Full-Scale Output
All specifications subject to change without notice.

Applications:

• Platform scales
• Belt scales
• Silo hopper weighing

Datasheet