Teledyne API Model 200AU NOX Analyzer Instruction Manual, 02293, Rev. F
4-6
Table 4-1: Front Panel Status LED's
LED State Meaning
Green On
Off
Blinking
Monitoring normally, taking DAS data
NOT monitoring, DAS disabled
Monitoring, DAS in HOLDOFF mode (1)
Yellow Off
On
Blinking
Auto cal. disabled
Auto/Dynamic cal. enabled
Calibrating
Red Off
Blinking
No warnings exist
Warnings exist
(1) This occurs during Calibration, DAS holdoff, power-up holdoff, and when in Diagnostic mode.
4.2.5.3 Power Switch
The power switch has two functions. The rocker switch controls overall power to the instrument,
in addition it includes a circuit breaker. If attempts to power up the M200AU result in a circuit
breaker trip, the switch automatically returns to the off position, and the instrument will not
power up.