Maintenance Log; Status Messages - EMS 5003 Operator's Manual

The Gas Analyzer needs regular maintenance for filter replacement and sensor replacement ( See
maintenance section for recommended change out frequency). EMS has given you a manual
maintenance log to track filter and sensor replacement (Figure 30). The default date will be the
time of manufacture. The main filters to replace are Water trap filter; EMS-5371, Particulate filter;
EMS-5371, Internal filter; EMS-5093. Sensors are the O2 sensor; EMS-5060 and Nox sensor;
EMS-5065.
To enter the date, press the box next to the description, and a key pad will open ( Figure 31).
Press the clear (CLR) or the back space (BS) button to remove the existing date, then enter the
new date and hit enter (ENT) button to close the key pad.
Figure 30

STATUS MESSAGES

If the optical bench detects any errors during operation, a message will be displayed on the
Status Line of the Home screen. If any error messages comes up, press the menu button, and
then press the status button (Menu Screen). At this point you can see any errors being sent from
the optical bench (Figure 32). The errors that would possibly be displayed are:
- Bench in Warm Up: This is controller by the bench MP with a count down.
- Bench Requests a Zero: This is controller by the IR bench, press Zero button.
- LOW Flow: This would be clogged filter or restricted sample hose.
- HC Zero Warning: This could be a bad calibration or bad optical bench channel.
- CO Zero Warning: This could be a bad calibration or a bad optical bench channel.
- CO2 ZeroWarning: This could be a bad calibration or a bad optical bench channel.
- Bad NOX: This could be a bad calibration or a bad NOX sensor.
- Bad O2 : This would be a bad O2 sensor.
If an error message does appear and is a bad calibration or the optical bench detected as not
normal, depress the "ZERO" button on the "Home" sampling screen to clear the error. If the
error message doesn't go away, either the bench has an error or is bad or one of the sensors
( O2, NOX) need to be replaced. Note: After calibration, the bench sends a FALSE bad Nox
error, Zero to clear.

MAINTENANCE LOG

Figure 32
Figure 31
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