CETAC M-7600 Mercury Analyzer Operator's Manual

Operator’s Manual
Chapter 4: Using the Analyzer
6 Verify that the sample capillary (inlet insert) is 0.5mm above the Gas-Liquid
Separator (GLS) center post.
7 Open the vents on the waste container.
8 Inspect the peristaltic pump tubing for wear and flat spots (replace if
necessary). If you remove any of the peristaltic pump tubes, do so one channel
at a time, and be careful to return the tube to the appropriate pump channel.
Do not lock the pressure shoes at this time.
9 Place the reagent capillary in a beaker of DI water.
10 Lock down the peristaltic pump pressure shoes.
11 Inspect liquid flows. The GLS drain should be flowing smoothly with no build up
or pulsing of liquid. The waste tube from the peristaltic pump to the waste
container should be liquid/gas etc… with no vibration. If this is not the case
upon inspection, stop immediately and change GLS drain tube and or waste tube.
12 Wet the GLS center post as described on page 84.
13 Inspect the rinse station for a convex liquid bubble adhering to the sample
probe. If this is not the case, change the rinse pump peristaltic tubing.
14 Open the appropriate worksheet (see the online help in the QuickTrace
software) and set the gas pressure to match the method.
You can also set the gas pressure by clicking on the Set Gas & Pump Speed icon.
Figure 4-15
Setting the Gas Pressure.
15 Zero the QuickTrace M-7600 using the auto zero.
Figure 4-16
Auto-Zero.
90