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BLH NOBEL / PSD Precision Shear Web Disk

BLH NOBEL / PSD Precision Shear Web Disk

The model PSD is a precision shear web disk, a specialized compression load cell. A low proile design makes the PSD the most suitable application when height is a primary safety concern. The shear web design provides excellent performance even when side forces are inevitable in normal operations. A typical example would be in motor truck scales. The PSD is fully potted with special chemical compounds to the IP67 standard. This protects the cell from water and moisture attack. The PSD-SJTT and PSD-SJTH are low-proile compression disks specially designed for testing machines.

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Description

PSD Precision Shear Web Disk

FEATURES

  • Capacities:
    • PSD: 2.5, 5, 10, 25 t
    • PSD-SJTH: 0.5, 1, 2, 5, 10, 20, 25, 30 t
    • PSD-SJTT: 0.2, 0.5, 1, 1.5, 2.5, 5, 10, 20, 25, 30, 50, 100 t
  • Compact size with low profile
  • Low deflection for high output
  • Electroless nickel-plated alloy tool steel construction
  • Off-center load compensated
  • OIML C3 available for the entire series
  • Optional – PSD-SJTT and PSD-SJTH models have different mounting holes and capacities from default PSD (see details below)

APPLICATIONS

  • Testing machines
  • Platform scales
  • Hopper and vessel weighing
  • Truck scales

Outline drawings and speciications follow on next pages.

OUTLINE DIMENSIONS – PSD 2.5 TO 25 t

Capacity D D1 D2 D3 H H1 R T T1 T2
2.5 t / 5 t 104.7 32.0 88.9 34.8 3.05 – M16 × 1.5 4.0 7.2 10.5 × 7.2 DP
10 t 138.0 38.9 106.4 41.1 7.61 22.0 – 4.0 8.7 13.5 × 9.7 DP
25 t 165.0 50.4 116.8 42.0 41.1 8.0 – 8.0 10.3 18.5 × 10.2 DP

OUTLINE DIMENSIONS – PSD-SJTT 0.2 TO 30 t

Capacity D D1 D2 D3 H H1 H2 T (Thread) T1 T2 H3
0.2 t 75 65.5 56 26 1.2 — — M12 × 1.75 4 6.5 —
1 t 90 78 22 65 43 40 3 M12 × 1.75 8 — 6.6
1.5 / 2.5 t 105 89 32 75 35 32 3 M16 × 2 8 7.2 10.5
5 / 10 t 138 110 44 88 46 41 3 M27 × 2 8 13.2 19
20 / 25 / 30 t 165 130 55 96 50 41 3 M36 × 2 8 21 31

OUTLINE DIMENSIONS – PSD-SJTT 50 AND 100 t

Capacity D D1 D2 D3 H H1 H2 H3 T (Thread) T1 T2
0.2 t 75 65.5 56 26 1.2 — — — M12 × 1.75 4 6.5
1 t 90 78 22 65 43 40 3 6.6 M12 × 1.75 8 —
1.5 / 2.5 t 105 89 32 75 35 32 3 10.5 M16 × 2 8 7.2
5 / 10 t 138 110 44 88 46 41 3 19 M27 × 2 8 13.2
20 / 25 / 30 t 165 130 55 96 50 41 3 31 M36 × 2 8 21
50 t 234 194 150 94 60.0 55 4.7 22 M52 × 2-6H 21.0 32.0
100 t 258 218 174 120 60.0 57 3 22 M76 × 2 21.0 32.0

OUTLINE DIMENSIONS – PSD-SJTH

Capacity D D1 D2 H H1 H2 T T1 T2
500 kg / 1 t / 2 t 31 80 112 46 — 4 16 7.0 96.0
5 / 10 t 48 84 130 55 61 4 32 14.0 105.0
20 / 25 / 30 t 72 130 182 80 86 4 39 15.0 154.0

SPECIFICATIONS PSD AND PSD SJTH

Parameter PSD PSD SJTH Unit
Model PSD PSD SJTH —
Standard capacities 2.5, 5, 10, 25 0.5, 1, 2, 5, 10, 20, 25, 30 t
Rated output – R.O. 3 (±0.25%) 3 (±0.25%) mV/V
Rated output tolerance ±0.25 ±0.25 % of rated output
Zero balance ±1 ±1 % of rated output
Non-linearity 0.025 0.05 % of rated output
Hysteresis 0.025 0.05 % of rated output
Non-repeatability 0.02 0.02 % of rated output
Creep error (20 min) 0.03 0.03 % of rated output
Zero return (20 min) 0.03 0.03 % of rated output
Compensated temperature range –10 ~ +40 –10 ~ +40 °C
Operating temperature range –20 ~ +60 –20 ~ +60 °C
Safe overload 150 150 % of R.C.
Ultimate overload 300 300 % of R.C.
Excitation (recommended) 10 VDC/VAC RMS 10 VDC/VAC RMS V
Excitation (maximum) 15 VDC/VAC RMS 15 VDC/VAC RMS V
Input impedance 385 ±5 385 ±5 Ω
Output impedance 350 ±3 350 ±3 Ω
Insulation resistance >5000 >5000 MΩ
Construction Nickel-plated alloy steel Nickel-plated alloy steel —
Environmental protection IP67 IP67 —

SPECIFICATIONS PSD-SJTT

Parameter PSD-SJTT PSD-SJTT (Aluminium) PSD-SJTT (50 t & 100 t) Unit
Model PSD-SJTT PSD-SJTT Aluminium PSD-SJTT 50t / 100t —
Standard capacities 0.5, 1, 1.5, 2.5, 5, 10, 20, 25, 30 0.2 50, 100 t
Rated output – R.O. 3 (±0.25%) 2 (±0.25%) 50t: 3 (±0.25%)100t: 2 (±0.25%) mV/V
Rated output tolerance ±0.25 ±0.25 ±0.25 % of rated output
Zero balance ±1 ±1 ±1 % of rated output
Non-linearity 0.05 0.05 0.10 % of rated output
Hysteresis 0.05 0.05 0.10 % of rated output
Non-repeatability 0.02 0.02 0.02 % of rated output
Creep error (20 min) 0.03 0.03 0.03 % of rated output
Zero return (20 min) 0.03 0.03 0.03 % of rated output
Compensated temperature range –10 ~ +40 –10 ~ +40 –10 ~ +40 °C
Operating temperature range –20 ~ +60 –20 ~ +60 –20 ~ +60 °C
Safe overload 150 150 150 % of R.C.
Ultimate overload 300 300 300 % of R.C.
Excitation (recommended) 10 VDC/VAC RMS 10 VDC/VAC RMS 10 VDC/VAC RMS V
Excitation (maximum) 15 VDC/VAC RMS 15 VDC/VAC RMS 15 VDC/VAC RMS V
Input impedance 385 ±5 385 ±5 770 ±10 Ω
Output impedance 350 ±3 350 ±3 700 Ω
Insulation resistance >5000 >5000 >5000 MΩ
Construction Nickel-plated alloy steel Aluminium Nickel-plated alloy steel —
Environmental protection IP67 IP67 IP67 —

SPECIFICATIONS ALL MODELS

Parameter C3 Class Non-approved Unit
NTEP/OIML accuracy class C3 Non-approved —
Maximum no. of intervals (n) 3000 1000 —
Y = Emax / Vmin 8000 5000 —
Temperature effect on min. dead load output 0.0014 0.0026 ±% of applied load / °C
Temperature effect on sensitivity 0.0010 0.0015 ±% of applied load / °C
Precision Shear Web Disk Shear Web Disk —

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