RS Technologies


	Medium Truck WFT

Medium Truck (WFT-MT-AL, WFT-MT-HD)

These WFTs are designed for use on medium duty trucks and laarge SUVs or off road vehicles. The rugged single-piece transducer provides high accuracy and superior performance in a durable water-resistant package. The flexure is designed for either a single front mounting or a rear tandem mounting. They can be fit with slip-ring or telemetry signal transmission. With on-board signal conditioning and calibration circuitry for each channel of data measurement, their setup and use with the MOPS-TIU interface package can be accomplished in a few minutes per wheel. The MOPS-TIU can be used as a standalone data acquisition package or can be used to interface to existing data acquisition systems.

The WFT-MT come in two types, WFT-MT-AL for loads up to 40 kN (9,000 Lbs.) and 6.5 kNm (60,000 Lb-In), and a heavy-duty unit WFT-MT-HD for loads up to 60 kN (13,500 Lbf) and 10 kNm (88,000 Lb-In). They mount to the vehicle hub via a custom hub adapter and accept modified rims mounting standard sized tires.

MEDIUM TRUCK SPECIFICATIONS

ITEM	WFT-MT-AL	WFT-MT-HD
FX Capacity	40 kN (9,000 Lbf)	60 kN (13,500 Lbf)
FZ Capacity	40 kN (9,000 Lbf)	60 kN (13,500 Lbf)
FY Capacity	20 kN (4,500 Lbf)	30 kN (6,700 lbf)
MX Capacity	5 kNm (45,000 Ln-In)	7.5 kNm (66,000 Lb-In
MZ Capacity	5 kNm (45,000 Lb-In)	7.5 kNm (66,000 Lb-In)
MY Capacity	6.5 kNm (60,000 Lb-In)	10 kNm (88,000 Lb-In
Dimensions	357 x 241 x 84 mm (14 x 9.5 x 3.3 in.)	381 x 241 x 96 mm (15 x 9.5 x 3.8 in.)
Weight	7.5 kg. (16.5 Lbs.)	9 kg. (19.8 lbs.)
Max. Hub Diameter	190 mm (7.5 in.) w/ hub adapter	190 mm (7.5 in.) w/hub adapter
Min. Rim Size	381 mm (15 in.)	406 mm (16 in.)
Material	Aluminum	Aluminium

GENERAL WFT SPECIFICATIONS

Nonlinearity	±0.5% of rated output
Hysteresis	±0.5% of rated output
Non-repeatability	±0.25% of rated output
Crosstalk	±1% Full Scale, typical; ±3% Full Scale, maximum
Excitation	±15 VDC
Output (all axes)	5.00 vdc ± 0.2%, nominal
Temperature Range	-25 to 150° C
Temperature Drift	0.005%/°C
Angle Encoder	Sine/cosine resolver
Coordinates	SAE Standard
Resolution	Depends on resolution of electronics; typically >30 Nt for force axes >3 Nm for moment axes
Bridge Resistance	Fx & Fz 525 Ohms, Fy, Mx, My & Mz 1400 Ohms, nominal
Isolation Resistance	2,000 M Ohms
Overload Capacity	50% of Full Scale on all axes applied simultaneously, provided that the combined load on each axis does not exceed the overload rating for that axis
Natural Frequency	<300 Hz
Acceleration Tolerance	Shock 40 m/sec²
Environmental	Dust-proof, water resistant, short-term submersible, corrosion resistant

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