Static torque sensor ST-903-D

analogIP65strain gauge

Presentation
Strain-gauge static torque sensor ST-903-D designed for industrial torque measurement up to 5000 Nm.

Main features

• Measurement range: 0.2–5000 Nm (multiple variants)
• Excellent linearity: 0.2% FS
• Sensitivity: 1.5 mV/V
• Ingress protection: IP65
• Material: alloy steel

Detailed description
Measurement capacity: 0.2–5000 Nm. Typical sensitivity 1.5 ±20% mV/V. Zero offset ±2% FS. Non-linearity 0.1% FS. Hysteresis 0.1% FS. Repeatability 0.05% FS. Creep (30 min): 0.1% FS. Temperature effect on output: 0.05% FS/10°C. Temperature effect on zero: 0.05% FS/10°C. Input resistance: 410 ±20 Ω or 785 ±20 Ω. Output resistance: 350 ±10 Ω or 700 ±10 Ω. Insulation: ≥5000 MΩ / 100 VDC. Recommended supply: 5–15 V (max 20 V). Temperature compensation: -10 to 60 °C. Operating temperature: -20 to 80 °C. Safe overload: 120% FS. Ultimate load: 150% FS. Cable length: Ø3 x 4000 mm. Mass: 0.8–12 kg depending on model. The sensor provides an analog (strain-gauge bridge) output and requires signal conditioning/acquisition electronics; it can be paired with a display or transmitter. Optional: calibration certificate (COFRAC, equivalent or traceable).

Technical characteristics / specifications

• Model: ST-903-D
• Measurement range: 0.2–5000 Nm
• Sensitivity: 1.5 ±20% mV/V
• Offset: ±2% FS
• Non-linearity: 0.1% FS
• Hysteresis: 0.1% FS
• Repeatability: 0.05% FS
• Creep (30 min): 0.1% FS
• Temperature effect (output): 0.05% FS/10°C
• Temperature effect (zero): 0.05% FS/10°C
• Input resistance: 410 ±20 Ω / 785 ±20 Ω
• Output resistance: 350 ±10 Ω / 700 ±10 Ω
• Insulation: ≥5000 MΩ / 100 VDC
• Supply voltage recommended: 5–15 V (max 20 V)
• Temperature compensation: -10 to 60 °C
• Operating temperature: -20 to 80 °C
• Safe overload: 120% FS
• Ultimate load: 150% FS
• Cable length: Ø3 x 4000 mm
• Mass: 0.8–12 kg (depending on version)
• Material: alloy steel
• IP rating: IP65
• Output: analog signal (strain-gauge bridge)