GTS208 Non-Contact Rotary Torque Sensor
The GTS208 is an exceptionally advanced, high-speed non-contact rotary dynamic torque sensor designed to precisely capture torsional stresses, rotational speed, and shaft horsepower in moving machinery. Capable of measuring both forward and reverse directions up to ≤8000 RPM, the GTS208 offers a wide capacity range from 5 N.m up to 500 N.m. Built with a heavy-duty, high-precision shaft made of 17-4PH stainless steel and housed in a robust anodized aluminum alloy enclosure, it provides unparalleled durability in harsh environments. Featuring an optional integrated 3-in-1 real-time OLED display panel and supporting analog frequency, voltage, current, and digital RS485 outputs, the GTS208 is the premium choice for motor testing, pump evaluation, and mechanical process monitoring.
Non-Contact & Zero Wear
Brushless telemetry signal transmission. Features zero physical slip rings or contact friction, guaranteeing zero maintenance, infinite mechanical life, and speeds up to 8000 RPM.
0.1% F.S. Ultra Precision
Offers ±0.1% F.S. high accuracy (optional). Captures extremely micro-dynamic torque fluctuations and rapid rotational speed variations with absolute stability.
17-4PH Shaft & OLED Panel
High-strength, anti-corrosive 17-4PH stainless shaft with a built-in 3-in-1 OLED screen, monitoring torque, speed, and computed power simultaneously at a glance.
Analog & Digital Dual Outputs
Coexists with standard frequency output with 4-20mA, ±10V, RS485, and RS232 signals. Perfect industrial-grade anti-interference for direct PLC, DAQ, and PC interface.
One-Stop Dynamic Testing Solutions
Maximize motor, pump, and assembly testing automation with our pre-tested telemetry hardware bundles:
01
Motor Dynamometer Testing
GTS208 Sensor + GSI Indicator + PC Logging: Captures torque, speed, and real-time mechanical power to evaluate high-speed electric motor or internal engine performance.
02
Pump & Fan Load Monitoring
GTS208 Sensor + RS485 Modbus RTU PLC: Directly connects to the PLC system to track shaft torque and energy efficiency fluctuations on heavy centrifugal pumps and fan systems.
03
Robotic Tool Calibration
GTS208 Sensor + GSI305T Handheld Unit: A portable, high-frequency torque verification kit for calibrating robotic screwdrivers, nut-runners, and electric wrench devices on active assembly lines.
04
Torsional Fatigue Analysis
GTS208 Sensor + High-Speed DAQ System: Delivers continuous, high-frequency analog frequency outputs for structural mechanics labs conducting destructive shaft-twisting fatigue trials.
Technical Specifications
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Technical Parameters
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Specification Performance (GTS208 Sensor)
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Capacity Scope
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5, 10, 20, 30, 50, 100, 200, 300, 500 N.m
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Accuracy
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±0.2% F.S. (Standard) / ±0.1% F.S. (Optional upgrade)
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Power Supply
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12 ~ 24 VDC (Operating current < 100 mA)
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Torque Signal Output
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10 ± 5 KHz Frequency (Standard) / 4-20 mA, ±5 V, ±10 V (Optional)
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Speed Output Signal
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60 pulses per revolution (Standard) / 4-20 mA, 0-10 V, RS485, RS232 (Optional)
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Maximum Speed limit
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≤ 8000 RPM (Rotational speed)
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Safe Overload Limit
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200% F.S.
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Shaft / Enclosure Material
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Shaft: 17-4PH Stainless Steel / Shell Housing: Lightweight Aluminum Alloy
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Electrical Interface
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Standard 8-pin air connector (Signal-Common must use white wire GND)
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Standard Cable length
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5 meters shielded cable
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Temperature Range
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Compensated: -10°C ~ +60°C / Operating: -20°C ~ +75°C
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Temperature Drift
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Zero/Output: ±0.2% F.S. / 10°C
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Mechanical Dimensions & Sizes
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Capacity Scope
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A
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B
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C
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D
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E
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F
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G
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H
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h
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I
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J
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K
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L
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M
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5 ~ 100 N.m
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133
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70
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55
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75
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30
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24
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3.5
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18
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6
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23
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27.5
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27
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15
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40
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200 ~ 500 N·m
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144
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70
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65
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85
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35
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30
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3
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28
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8
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29
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32.5
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28
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12
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46
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⚙️ Mechanical Integration & Shaft Installation: The GTS208 features optical shafts on both ends. High-precision elastic couplings are highly recommended to connect the sensor to your motor and load. Ensure the concentricity error between the motor shaft, sensor shaft, and load shaft is strictly below 0.03mm to prevent shear fatigue. To avoid electrical noise, always wire the signal-common using the dedicated white GND connection.
Core Industry Applications
Motor & Dynamometer Test Benches
Captures dynamic torque output, start-up current-torque ratios, and efficiency on high-speed brushless electric motors, pumps, and engine dynos.
Pumps, Fans & Compressors
Monitors long-term dynamic shaft stress, impeller drag, and blockage friction inside water treatment pumps, industrial fans, and heavy-duty gas compressors.
Automated Assembly Tool Verification
Integrates with robotic assembly arms and multi-spindle tightening systems to calibrate and record peak torque metrics of nutrunners and screwdrivers.
Automotive Transmission & Gearboxes
Measures input-output torque conversion ratio, gear frictional loss, and torsional vibration characteristics of vehicle transmissions and reduction gearboxes.
Bespoke Dynamic Customization Services
We offer professional custom configurations to suit specialized test benches and environments:
Integrated OLED display screen (Torque, Speed, Power)
High-Speed Custom Limit (up to 12,000 RPM)
Custom Shaft Dimensions (Double keyways / Spline shaft)
Dual Analog & RS485 Modbus RTU output co-existence
High-Grade IP67 Protection Housing
Special Cable Length customizations (up to 30 meters)
Frequently Asked Questions
1. What makes non-contact torque sensors better than contact slip-ring types?
Traditional slip-ring torque sensors use carbon brushes that wear out quickly at high speeds, generate frictional heat, and require frequent brush replacements. GTS208's brushless non-contact design uses high-frequency telemetry, resulting in zero friction, zero wear, high speed up to 8000 RPM, and an infinite operational lifespan.
2. Does the GTS208 measure rotational speed and mechanical power simultaneously?
Yes. GTS208 measures both torque and rotational speed (forward and reverse directions, standard 60 pulses/rev) in real-time. When selecting our integrated OLED indicator display option, the internal microchip automatically computes and displays torque, speed, and real-time mechanical power ($P = 2 \pi \cdot n \cdot T / 60$) on one screen.
3. Why is concentricity alignment crucial during GTS208 shaft installation?
Since dynamic torque sensors experience high-speed rotation, concentricity errors between your motor, the sensor, and the load will generate excessive shear forces and bending moments. This will cause measurement drift or even fracture the 17-4PH stainless steel shaft. We highly recommend using double elastic couplings and aligning concentricity within 0.03 mm.
4. How do I prevent electromagnetic interference from motor frequency inverters?
Inverters generate intense high-frequency harmonics. To prevent signal noise, always connect the GTS208 using our 5-meter high-density double-shielded cable. Additionally, the signal ground (GND) must be wired to the white terminal, and the sensor body should be solidly grounded to your test bench frame.
5. What digital and analog output protocols are standard on the GTS208?
GTS208 outputs a standard 10±5KHz frequency signal for torque and a 60-pulse square wave for speed. For integration with PLCs or industrial computers, we offer custom dual outputs combining analog current (4-20mA), voltage (0-10V / ±10V), and digital RS485 (supporting Modbus RTU) or RS232 protocols.
Need a Reliable Rotary Torque Testing System?
Contact Xi'an Gavin Electronic Technology Co., Ltd. today for professional system selection, CAD drawings, and factory B2B pricing.
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