Mts SWIFT 20 Ultra Sensor Manual de usuario descargar pdf (Pagina 95)

Test Track Vehicle for Slip Ring Sensor

SWIFT 20 Sensors Installing the Transducer

Verifying the Quality of the Zero Procedure

Important This section includes information related to the Low-Profile

Transducer Interface (TI). For SWIFT transducers designed to

operate with the newer Mini TI, there is a separate manual that

documents the Mini TI (MTS part number 100214316).

Perform the following consistency checks for each SWIFT sensor while the

vehicle (or corner) is elevated.

1. Does Fz measure the approximate weight of the tire/rim assembly?

2. Is Fx small (less than 0.1% of the rated load)?

3. What is the variance in Fz (modulation) when the tire is slowly rotated?

4. When the vehicle is on the ground, is the Fz reading approximately equal to

the corner weight of the vehicle? (See, “Effect of Zero Reference on SWIFT

Output,” on page 96.)

5. Perform a Shunt calibration on each transducer.

A. Elevate the vehicle on a lift, or jack up each corner.

B. Connect the shunt calibration cables from the Shunt A, Shunt B

connectors on the front of the transducer to the Shunt A, Shunt B

connectors on the back of the TI box (see the next figure).

C. Connect the signal cable from the slip ring to the Slip Ring connector

on the back of the TI box.

Acceptable Variations for Fx, Fz Readings

Transducer Model Max Rated Load

(Fx, Fz)

Fx Reading

with Vehicle Lifted

Fz Modulation

with Vehicle Lifted

SWIFT 20 A (Aluminum)

21 kN 0.1% (±15–20 N) 0.2% (20–40 N)

SWIFT 20T (Titanium)

30 kN 0.1% (±25–30 N) 0.2% (40–60 N)

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Mts SWIFT 20 Ultra Sensor Manual de usuario Pagina 95