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■ The machine is ready to be switched to LOAD as soon as the specified
airend discharge
temperature (ADT) is attained.
(for temperature settings, see chapter 2.7.4)
■ If the starting sequence fails or is interrupted by pressing the «EMERGENCY STOP»
push-button, the “re-start inhibitor” is activated for 20 seconds. The display shows the re‐
maining time before another start can be attempted.
Despite "preheating", the engine does not start in cold weather.
The engine is still too cold.
➤ Restart the controller.
1. Switch off the «Controller ON/OFF» switch.
2. Switch on the «Controller ON/OFF» switch.
3. Press the «START» button.
Result The engine preheats once again.
Switching the machine to LOAD operation:
Precondition Specified value for the
engine coolant temperature (ECT) is attained:
➤ Press «LOAD/IDLE» key.
The machine switches to LOAD mode and is ready to deliver compressed air.
Precondition Specified value for the
engine coolant temperature (ECT) is not attained:
➤ Press «LOAD/IDLE» key.
■ The load demand is saved.
■ The engine runs up.
■ As soon as the specified
engine coolant temperature (ECT) is attained, the machine auto‐
matically switches to LOAD and is ready for operation.
8.2.4 Setting the compressed air discharge pressure
The compressed air discharge pressure can be modified only when this option is activated in the
machine controller.
(Separate user manual for the SIGMA CONTROL SMART controller).
The compressed air discharge pressure (nominal pressure) can be set when the engine is in stand‐
still (with the controller activated) or during operation (with the machine running).
■ The pressure can only be set lower than the maximum working pressure (nominal pressure) of
the machine.
■ You can adjust the settings in increments of 0.1 bar or 1 psi.
■ The adjustment appears on the display.
8
Operation
8.2
Starting and stopping
No.: 901783 08 USE
Operator Manual Portable Rotary Screw Compressor
MOBILAIR M82 SIGMA CONTROL SMART
81