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Minebea Intec / Single Point load cell PR 57 Weighing solution with high precision
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Minebea Intec / Single Point load cell PR 57 Weighing solution with high precision

  • Reliable weighing through accurate
    measurement results
  • Corrosion-resistant for demanding
    applications
  • For a wide range of loads
  • Versatile optional weighing electronics
  • Design-in support from specialists
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Single Point load cell PR 57 Weighing solution with high precision

Ideal for integration in floor scales, for example: with the Single Point load cell PR 57, you can rely on the tried-and-tested quality of a leading manufacturer of industrial weighing technology. Suitable for load ranges of 300 kg to 500 kg and a platform size of up to 600 mm × 600 mm.
Verifiable load cells for a variety of industrial applications

  • These load cells, developed in Germany, guarantee the most accurate weighing results. All load cells are verifiable according to OIML and NTEP.
  • Specifically for floor platform scales. Loads from 300 kg to 500 kg. Stainless steel ensures a long product lifetime.
    Verifiable load cells for a variety of industrial applications
  • A comprehensive optional portfolio of transmitters, indicators and controllers ensures reliable continuous processing of the measurement signals as desired.
  • Comprehensive expertise in scale production ensures high-quality advice for individual projects.

Technical specifications

Single Point load cell PR 57
Parameter Description Abbr. PR 57 C3MR Unit
Accuracy class     0.02 % Emax
Minimum dead load Lowest limit of specified measuring range Emin 0 % Emax
Maximum capacity Highest limit of specified measuring range Emax 300, 500 kg
Maximum usable load Upper limit for measurements Elim 150 % Emax
Destructive load Danger of mechanical destruction Ed 300 % Emax
Minimum LC verification Minimum load cell scale interval, vmin = Emax/Y Y 15000  
Deadload output return Factor for deadload output return after load (DR = 1/2*Emax /Z) Z 3000  
Rated output Relative output at maximum capacity Cn 2 mV/V
Tolerance on rated output Permissible deviation from rated output dc < 10 %Cn
Zero output signal Load cell output signal under unloaded condition Smin 0 ± 5 %Cn
Repeatability error Max. change in load cell output for repeated loading eR < 0.01 %Cn
Creep Max. change of output signal at Emax during 30 min. dcr 0.0166 %Cn
Non-linearity1) Deviation from best straight line through zero dLin 0.0166 %Cn
Hysteresis1) Max. difference in LC output between loading and unloading dhy 0.0166 %Cn
Temperature effect (TK) on Smin Max. change related to Cn of Smin per 10K in BT TKSmin < 0.0093 %Cn/10 K
TK on parameter1) Max. change related to Cn of C per 10K in BT TKC < 0.0117 %Cn/10 K
Off-centre load error In compliance with the technical data according to OIML R76   0.0233 %Cn
Input impedance Between supply terminals RLC 380 ± 38 Ω
Output impedance Between measuring terminals RO 350 ± 25 Ω
Insulation impedance Between measuring circuit and housing at 100 VDC RIS >5,000 × 106 Ω
Nominal supply voltage range To hold the specified performance Bu ≤ 12 VDC
Max. supply voltage Continuous operation without damage Umax 15 VDC
Nominal ambient temp. range To hold the specified performance BT -10 to +40 °C
Usable ambient temp. range Continuous operation without damage BTu -20 to +65 °C
Storage temperature range Without electrical and mechanical stress BTi -25 to +70 °C
Barometric pressure influence Influence of barometric pressure on output   < 0.007 %Cn/kPa
Nominal deflection Max. elastic deformation under maximum capacity Snom < 0.7 mm
Cable length     3 m
Material Stainless steel      
Max. platform size In compliance with the technical data according to OIML R76   600 × 600 mm × mm
IP protection class According to EN 60529   IP66/IP67  

1) Non-linearity (dLin), hysteresis (dhy) and parameter temperature effect (TKC) are typical values. For OIML R60- and NTEP-approved load cells, the total of these values is within the permitted cumulative error limits.

Accuracy classes and minimum scale interval, vmin
  Maximum number of scale intervals, nmax PR 57/300 kg PR 57/500 kg Unit
OIML 3000 0.020 0.033 kg
NTEP Class III Multiple 5,000 0.020 0.033 kg

Technical diagrams
Single Point load cell PR 57

Ex approval
Scope of validity:
Single Point load cell LC stainless steel

Single Point load cell PR 57 certificates
Zone Marking Certificate number For
0 and 1 II 1G Ex ia IIC T6/T4 Ga  
 
BVS 21 ATEX E 023 X IECEx BVS 21.0024X		  
Only PR 5x/xx E
20 II 1D Ex ia IIIC T₂₀₀ 165°C Da
2 II 3G Ex ec IIC T6/T4 Gc  
All PR 5x without E

Ordering information

Single Point load cell PR 57
Model Order number
PR 57/300 kg C3MR 9409 257 07130
PR 57/500 kg C3MR 9409 257 07150
PR 57/300 kg C3MRE 9409 657 07130
PR 57/500 kg C3MRE 9409 657 07150
PR 57/300 kg III 5000 S 9409 257 0C130
PR 57/500 kg III 5000 S 9409 257 0C150

 

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