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Himmelstein MCRT® 27000V Series Torque Wheels accurately measure wheel torque and speed during driving, braking and coastdown. Standard models are available for front wheel, rear wheel, and all wheel drive vehicles. Applications include characterization of road load driving conditions, and coastdown, emissions correlation, braking and chassis dynamometer tests.
Installation is made without vehicle rework. Mounting the torque transducer on a standard wheel produces a small offset. The offset can be eliminated with a modified wheel. Torque transducer weight and inertia emulate a conventional wheel.
Excellent temperature compensation and a unique sensor design provides intrinsic immunity to temperature gradients and radial and cornering loads. These torque wheels are constructed of corrosion resistant materials and waterproofed to permit operation in shallow water. They also exhibit unprecedented tolerance to inevitable cable shunts caused by salt or other contaminants.
These models require a single unregulated dc power supply and produce dual, filtered ±5V dc analog outputs of torque.
Nonlinearity (% of full scale) |
±0.1 |
Hysteresis (% of full scale) |
±0.1 |
Nonrepeatability (% of full scale) |
±0.05 |
Accuracy (combined nonlinearity, hysteresis and non-repeatability, % of full scale) |
±0.15 |
Rotational Effect on Zero (% of full scale) |
±0.025 |
Remote Calibration Accuracy (% of full scale @ 75 deg F; traceable to NIST) |
±0.05 |
Effect of Radial, Bending & Clamping Loads |
Per Bulletin 7800 |
Temperature Effects: |
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Zero (% of full scale/deg F.) |
±0.003 |
Span (% of reading/deg F.) |
±0.003 |
Compensated Range |
+75 to +175 deg F |
Minimum Useable Range |
-25 to +185 deg F |
Storage Range |
-65 to +225 deg F |
Outputs: |
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Full Scale CW Torque |
+5 Volts |
Full Scale CCW Torque |
-5 Volts |
Nominal Overrange (% of full scale) |
33 |
Bandwidth: |
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High Frequency Output |
dc to 500 Hz |
Low Frequency Output |
dc to 1 Hz |
Input Power |
10.5 to 24 volts dc @ 90 mA, nominal |
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| Available
Options |
- Specify Bolt Pattern:
Code A: 4 bolt pattern
Code B: 5 bolt pattern
Code X: 6 bolt pattern
Code E: 8 bolt pattern
Code U: Universal pattern
- Select Speed Pickup:
Code A standard 60 ppr pickup
Code Z zero velocity 60 ppr pickup
Code O 3,600 ppr optical encoder
- Code L High Output Option, ±10 Volt Outputs
- Code K Wideband Output, 1 Hz & 1,100 Hz Outputs
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| Download
Data Sheets |
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Complete 6-page data sheet with full specifications, outline drawing and electrical connections is available in Adobe Acrobat pdf format.
Bulletin 7800B MCRT® 27000T Non-Contact Wheel Torquemeters (B7800B.pdf, 1,720 Kb)
One page supplemental specification sheet with specifications and dimensions unique to the option V high level dc voltage output: Bulletin 7801 Option V DC Operated Wheel Torquemeters (B7801.pdf, 403 Kb)
Option Code L: Bulletin 7405F High Output Option (B7405F.pdf , 120 Kb)
Option Code K: Bulletin 7406B Wideband Output Option (B7406B.pdf, 117 Kb)
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| Recommended
Readouts |
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Click link below for more information on suitable amplifiers and readout instruments for the MCRT® 27000V Series Torque Transducers. These transducers will operate with most digital meters that can provide the necessary power supply requirements. S. Himmelstein and Company offers premium quality instruments and displays for torque only or both torque and speed with horsepower calculated.
Model 703 - Single Channel Torque Only Instrument/Display
Model 733 - Two Channels of Torque or Other DC Input
Model 723 - One Channel of Torque and One Channel of Speed with Calculated HP |
| Torque
Ranges |
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Quick
Select
