Atlas Copco LUM12 HRX Instruções do produto - Página 9

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LUM12 HRX/HRX-RE

Operation

Operating instructions

Reporting (RE) machines supply an air signal that can be connected to a monitoring instrument that

counts the number of approved tightening and detects premature shut-off and rehits and other irregulari-

ties.

Reporting pneumatic assembly tools provide a pneumatic signal that indicates which part of the tightening

cycle the tool has reached, by means of variations in air pressure.

In the RE-Controller box timers are triggered when certain pressure levels are reached.

Pressure level 1 (P1) starts a timer that checks that the tightening cycle is not too short.

Pressure level 2 (P2) starts a timer that checks the time taken from when the clutch has been released to

when the operator releases the trigger to ensure that it is not too short.

The controller measures the differential pressure over the motor.

It should be noted that the system does not measure torque! Regular check of installed torque/torque out-

put of the tool must be done separately.

The RE-Controller checks the air-line pressure. One of the most common problems in air-line systems is

pressure variations. If the pressure drops too much the tool might stall and/or the torque will not be cor-

rect. The RE-Controller will give a signal if the pressure drops too much.