38 Agilent 7890 Series Troubleshooting
2 ALS and Detector Symptoms
FPD
+
Temperature Will Not Become Ready
If the FPD
+
emission block temperature will not become ready:
• Check the oven temperature. If the oven temperature is high
(over 325 °C) for a long time, set the emission block
temperature to its highest value (165 °C).
• Check the transfer line temperature. If the transfer line is set
to a very high temperature (near 400 °C), set the emission
block temperature to at least 150 °C.