설명
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 |
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| Bending radius | ≥ 50 mm in case of fixed installation
≥ 150 mm in case of flexible installation |
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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
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Circuit diagram |
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Load cell accessory – rod end PR 6046
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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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