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Minebea intec / Tension S-type load cell PR 6246

Minebea intec / Tension S-type load cell PR 6246

PR 6246 benefits

  • High measuring accuracy and repeat- ability
  • Unrivalled reliability, robustness and stability
  • Can be used in extreme operating conditions
  • Quick setup
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Tension S-type load cell PR 6246

PR 6246 series load cells are specially designed for high-precision weighing of process vessels and for high-precision batching. Inverted mounting can better compensate for vessel and/or support structure movements.

For weighing process vessels and high-precision batching.

  • The series stands out thanks to its compact design, high measuring accuracy and repeatability. Furthermore, it has a high overload range of up to 150% and the highest accuracy class – up to C6.
  • Its unrivalled reliability, robustness and stability ensure years of smooth operation without the need for any readjustments.
  • The series has a particularly broad working tempera- ture range thanks to the use of special strain-gauge technology and the hermetically sealed enclosure allows for use in extreme operating conditions and the harshest of production environments.
  • Thanks to the “matched output” technology, a damaged load cell can be replaced without the need for recalibration.

Technical specifications

Tension S-type load cell PR 6246
Parameters Description Abbr. D1 C3 C6 Unit
Accuracy class 0.04 0.015 0.008 %Emax
Minimum dead load Lowest limit of specified measuring range Emin 0 0 0 %Emax
Maximum capacity Highest limit of specified measuring range Emax See Ordering information table
Safe load limit Maximum load possible without irreversible damage Elim 150 150 150 %Emax
Destructive load Danger of mechanical destruction Ed > 300 > 300 > 300 %Emax
Minimum LC verification Minimum load cell verification interval (vmin = Emax/Y) Y 5,000 14,000 20,000
Deadload output return Factor for deadload output return after load (DR=1/2*Emax/Z) Z 8,000
Rated output Relative output at maximum capacity Cn 2 2 2 mV/V
Tolerance on rated output Permissible deviation from rated output dc < 0.25 < 0.07 < 0.07 %Cn
Zero output signal Load cell output signal under unloaded condition Smin 0 ± 1.0 0 ± 1.0 0 ± 1.0 %Cn
Repeatability error Max. change in load cell output for repeated loading R < 0.01 < 0.005 < 0.005 %Cn
Creep Max. change of output signal under Emax during 30 min. dcr < 0.03 < 0.015 < 0.008 %Cn
Non-linearity Max. deviation from best straight line through zero dLin < 0.03 < 0.01 < 0.01 %Cn
Hysteresis Max. difference in LC output between loading and unloading dhy < 0.04 < 0.015 < 0.008 %Cn
Temperature effect on Smin Max. change of Smin in BT TKSmin < 0.028 < 0.01 < 0.007 %Cn/10 K
Temperature effect on parameter Max. change of C in BT TKc < 0.03 < 0.01 < 0.005 %Cn/10 K
Input impedance Between supply terminals RLC 650 ± 6 650 ± 6 650 ± 6 Ω
Output impedance Between measuring terminals RO 610 ± 1 610 ± 0.5 610 ± 0.5 Ω
Insulation impedance Between measuring circuit and housing at 100 VDC RIS >5,000 × 106 >5,000 × 106 >5,000 × 106 Ω
Insulation voltage Between circuit and housing (PR 6246/..E only) 500 500 500 V
Recommended supply voltage To hold the specified performance Bu 4 to 24 4 to 24 4 to 24 V
Max. supply voltage Continuous operation without damage to PR 6246/…E Umax 28 (EX:25) 28 (EX:25) 28 (EX:25) V
Nominal ambient temp. range To hold the specified performance BT -10 to +55 -10 to +55 -10 to +55 °C
Usable ambient temp. range Continuous operation without damage BTU -40 to +95 -40 to +95 -40 to +95 °C
Storage temperature range Without electrical and mechanical stress BTl -40 to +95 -40 to +95 -40 to +95 °C
Vibration resistance Resistance against oscillations (IEC 68-2-6-Fc) 20 g, 100 h,

10 to 150 Hz

 20 g, 100 h,

10 to 150 Hz

 20 g, 100 h,

10 to 150 Hz

 –
Barometric pressure influence Influence of barometric pressure on output PKSmin ≤ 0.005 ≤ 0.0025 ≤ 0.0025 %Cn/kPa
Nominal deflection Max. elastic deformation under maximum capacity Snom 0.3 0.3 0.3 mm
Material Load cell: 1.4542 (DIN 17 440) similar to S604, S622 (B.S.) or 17–4PH
Protection class IP68/IP69K
Cable Length: 5 m

Diameter: 5 mm

Cross section: 4 × 0.35 mm2 Cable sheath material: TPE
Bending radius ≥ 50 mm in case of fixed installation

≥ 150 mm in case of flexible installation

Definitions according to VDI/VDE 2637. The technical data given serves as a product description only and should not be understood as guaranteed properties in the legal sense.

NTEP classification PR 6246
NTEP NTEP minimum LC verification interval, vmin
Maximum capacity With OIML class Divisions nmax 100 kg 200 kg 300 kg 500 kg 1 t 2 t 3 t Unit
Class III Multiple D1 2,000 20 40 60 100 200 400 600 g
Class III Multiple C3 5,000 — 14.3 21 36 71 143 214 g
Class III Multiple C6 8,000 — 10 15 25 50 100 150 g
Class IIIL Multiple D1 5,000 6.7 13.3 20 33 67 133 200 g
Class IIIL Multiple C3 10,000 — 5 7.1 12 24 48 71 g
Class IIIL Multiple C6 10,000 — 3 5 8 17 33 50 g

Technical diagrams

Tension S-type load cell PR 6246

Tension S-type load cell PR 6246

Designation A B C D E
PR 6246/12…/52 60 65 50 23 M12
PR 6246/13…/33 90 95 64 30 M20×1.5
 

 

 

Circuit diagram

Load cell accessory – rod end PR 6046

Load cell type A B C D
/00N /00S
PR 6246 100 kg – 500 kg 148 ± 1.0 32 12 7 12
PR 6246 1 t – 3 t 204 ± 1,5 50 20 18 18
Load cell type E F G H
/00N /00S
PR 6246 100 kg – 500 kg 10 16 54 SW19 M12x1.75
PR 6246 1 t – 3 t 25 25 78 SW30 M20x1.5

The stated values apply only for static and quasistatic applications
All dimensions in mm

Ex approval
Scope of validity:
PR 6246 (100 kg to 3 t)

Certificates for tension S-type load cell PR 6246
Zone Labelling Certificate number For
0 and 1 II 1G Ex ia IIC T6 Ga

Ex ia IIC T6 Ga

 BVS 16 ATEX E 005

IECEx BVS 16.0005

 PR 6246/..E only
20 and 21 II 1D Ex ta IIIC T160 °C Da Ex ta IIIC T160 °C Da TÜV 03 ATEX 2301X IECEx TUN 17.0025X All PR 6246 without /..E
2 II 3G Ex nA IIC T6 Gc Manufacturer’s declaration All PR 6246 without /..E
22 II 3D Ex tc IIIC T85 °C Dc Manufacturer’s declaration All PR 6246 without /..E
FMus IS CL I, II, III, DIV 1, GP A, B, C, D, E, F, G Entity – 4012 101 5688 NI CL I, II, III, DIV 2, GP A, B, C, D, E, F, G NIFW – 4012 101 5688 T4A Ta = -30 °C to 70 °C; T5 Ta = -30 °C to 55 °C FM17USO276 All PR 6246 without /..E
FMca IS CL I, II, III, DIV 1, GP A, B, C, D, E, F, G Entity – 4012 101 5688 NI CL I, II, III, DIV 2, GP A, B, C, D, E, F, G NIFW – 4012 101 5688 T4A Ta= -30 °C to 70 °C; T5 Ta= -30 °C to 55 °C FM17CA0138 All PR 6246 without /..E

Ordering information

Tension S-type load cell PR 6246
Type Maximum capacity Emax Version Ex version Packaging Weight gross/net
PR 6246/12.. 100 kg /..D1 /..D1E 220 × 215 × 135 mm 1.2 kg/0.8 kg
PR 6246/22.. 200 kg /..D1/..C3/..C6 /..D1E/..C3E/C6E 220 × 215 × 135 mm 1.2 kg/0.8 kg
PR 6246/32.. 300 kg /..D1/..C3/..C6 /..D1E/..C3E/C6E 220 × 215 × 135 mm 1.2 kg/0.8 kg
PR 6246/52.. 500 kg /..D1/..C3/..C6 /..D1E/..C3E/C6E 220 × 215 × 135 mm 1.2 kg/0.8 kg
PR 6246/13.. 1 t /..D1/..C3/..C6 /..D1E/..C3E/C6E 220 × 215 × 135 mm 1.9 kg/1.6 kg
PR 6246/23.. 2 t /..D1/..C3/..C6 /..D1E/..C3E/C6E 220 × 215 × 135 mm 2.0 kg/1.6 kg
PR 6246/33.. 3 t /..D1/..C3/..C6 /..D1E/..C3E/C6E 220 × 215 × 135 mm 2.0 kg/1.7 kg
Load cell accessories PR 6246 – rod end sets
Type Accessories Description Order number
PR 6046/00S Stainless steel rod end mounting kit Material – 1.4301, tension mounting kit for load cells with up to 500 kg maximum capacity 9405 360 46002
PR 6046/00N Rod end mounting kit Material – steel, tension mounting kit for load cells with up to 500 kg maximum capacity 9405 360 46001
PR 6046/11S Stainless steel rod end mounting kit Material – 1.4548, tension mounting kit for load cells with 1 t to 3 t maximum capacity 9405 360 46112
PR 6046/11N Rod end mounting kit Material – steel, tension mounting kit for load cells with 1 t to 3 t maximum capacity 9405 360 46111

 

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