The following table describes the LED indicators on the front panel.

LED Indicator Descriptions

LED

State

Description

Power

Green

(The Electronics switch is in the Operating Mode position.)

The MS is receiving power.

Off

(The Electronics switch is in the Service Mode position.)

The MS is not receiving full power for operation.

CAUTION Line power (220 Vac) to the MS is still present and there are high voltages within certain areas of the instrument.

System

Green

The MS is in On mode and scanning.

Yellow

The MS is in Standby mode.

Off

The MS is in Off mode.

Vacuum

Green

The vacuum is within the allowable operating range.

Yellow

The vacuum is outside the allowable operating range.

Off

The MS is either powered off or in the process of starting up.

Communication

Green

The MS and data system are communicating.

Yellow

The MS and data system are trying to establish a communication link.

Off

(The Electronics switch is in the Service Mode position)

The MS is in Off mode.

Scan

Flashing blue

The MS is in On mode and scanning.

Off

The MS is either in Standby mode or Off mode and not scanning.