Troubleshooting With Front Panel Status Led's Or Status Outputs; Table 10-1: Status Led/Output Definitions - Teledyne 465L Operation Manual

10.2.
Troubleshooting with Front Panel Status
LED's or Status Outputs
The 465L has 4 front-panel status LED's that reflect the current operating status of
the monitor, and indicate fault conditions. There are also four relay Status Outputs
on the rear panel (or internally in the NEMA configuration) that also reflect the state
of these status LED's. See Section 4.4.3 for more information on the Status
Outputs.
The Status LED's are categorized into Critical and Non-Critical warnings. Critical
warnings are those that would normally require immediately removing the monitor
from service and repairing it. Non-critical warnings are those that indicate some
maintenance would be useful, but not immediately required.
Status Status LED
Output # Label
1 Sensor OK
2 Invalid Reading Off
3 Check Lamp
4 Pneumatic
Error
05509G DCN6806

Table 10-1: Status LED/Output Definitions

Normal Triggers
Operating
State
On
Off
Off
Teledyne API Model 465L O
Teledyne API Model 465L O 3 Monitor Operation Manual
• No bench communications
• Reference < 125.0 mV
• Reference > 1230.0 mV
• O
Concentration < -10.0 PPB
3
• O
Concentration > F.S. Range
3
• Reference < 250.0 mV
• Pressure < 9.0 psia
• Pressure > 14.9 psia
• Flow < 640 cc/min
• Flow > 960 cc/min
Monitor Manual
3
Critical
Warning?
Yes
No
No
No
77