Agilent Technologies 7890A Troubleshooting Manual page 100

8
Troubleshooting Tasks
Measuring NPD flows
WA R N I N G
100
Gather the following:
1
• NPD flowmeter adapter tool (G1534- 60640)
• Flow- measuring insert (19301- 60660)
• Electronic flowmeter calibrated for the gas and flow
rates of concern
Set the bead voltage to 0.0 V.
2
Cool the NPD to 100 °C.
3
Be careful! The detector may be hot enough to cause burns. If the
detector is hot, wear heat-resistant gloves to protect your hands.
Remove the bead and store it carefully until reinstallation.
4
Insert the NPD flowmeter adapter tool into the NPD
5
collector.
6 Attach the flow- measuring insert to the NPD flowmeter
adapter tool.
Troubleshooting