Agilent 5110/5100 ICP-OES Service Manual Agilent Restricted 35
3 General Information
Power On/Off switch indicator
Power On/Off switch indicator
Return to step 2
The instrument power On/Off switch is located at the bottom left hand side of the instrument
and the switch LED provides instrument status feedback as indicated in the table below.
On/Off Switch
Green LED
Instrument state (when main instrument power switch is on)
Brief flash once every 10
seconds
Most of the instrument is unpowered, with the exception of the soft on/off button switch sensing circuit (and mains
PCA microcontroller which drives this). The instrument can be turned on (powered up) by depressing the soft on/off
switch at the front. Mains power is active inside the instrument.
Flashing slow (1 Hz) Mains power module proceeding through start-up check sequence while transitioning between Off and On states.
On Instrument is On.
Flashing fast (2 Hz) Mains power module failed its power-up self-check, instrument is unusable.
Mains power supply is not adequate or internal mains module needs to be replaced.