A third, small roller (
❷
) between the wheel supporting rollers detects if a vehicle is present
and if slippage (lock) occurs. If slippage occurs the rollers are stopped to prevent damage to
the tyres.
The electronics of the brake tester (relays rails, power supply, CPU board) are located inside
the roller brake tester and connected by means of an Ethernet cable to the console.
For safety purposes, the motors will not start if the left and right small rollers are not pushed
down within one second after each other (except for 3-wheel mode or class 1 & 2 mode for
motorcycles/scooters (optional)). The second function is to detect if tyre slippage on the
rollers does not exceed the maximum value.
If the tester is not used, it must be closed with the standard supplied roller bed cover plates.
Note
For testing Class 1 & 2 vehicles on the DE9419/DE9719 brake tester the adapter plate
OA/62415 (class 4) or OA/62719 (class 7) is required.
Weighing system
When installed as a NON-ATL class 4 roller brake tester, a weighing system is not
integrated. The ATL function is switched off. The operator can only use the brake tester in
manual mode.
When installed as an ATL class 4 roller brake tester, the roller bed is standard equipped with
an integrated 4-point weighing system. During installation the ATL function is switched on.
The operator can test in both ATL and MANUAL mode.
The software supresses the weighing system during a MANUAL test.
When installed as a NON-ATL class 7 roller brake tester, a weighing system is not
integrated. The ATL function is switched off. The operator can only use the brake tester in
manual mode.
When installed as an ATL class 7 roller brake tester and also used for ATL class 4 testing,
the roller bed is standard equipped with an integrated 4-point weighing system. During
installation the ATL function is switched on. The operator can test in both ATL and MANUAL
mode.
The software supresses the weighing system during a MANUAL test Class 4.
The software supresses the weighing system during an ATL & MANUAL test Class 7 & 5L.
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