Errors and Warnings LED Indicators

The MTRwrench 85 Error/Warning LED indicator, along with the Progress LEDs, shows the operator of detected errors or damages.

LED indicators

Diagnosis

Corrective actions

Warning LED blinking red

Minor transducer overload
(120 to 150% of nominal torque)

Place the wrench into the cradle to perform a zero adjustment.

Progress LEDs all blinking red
+
Warning LED steady red

+

Wrench locked due to major transducer overload
(>150% of nominal torque)

Stop running tightening operations and contact Atlas Copco Customer Service.

Progress LEDs blinking white
+
Warning LED blinking red

+

Zero adjustment failed due to wrench moving or to load being applied to the transducer.

Remove the wrench and place it again into the cradle to start a new zero adjustment.

Progress LEDs steady red
+
Warning LED blinking red

+

Zero adjustment failed due to wrench moving or to load being applied to the transducer for a second time during the zero adjustment.

Remove the wrench and place it again into the cradle to start a new zero adjustment.

Progress LEDs off + Warning LED blinking red

+

Calibration or mechanical service required.

Send wrench to service