CETAC M-7600 Mercury Analyzer Operator's Manual
CETAC M-7600 Mercury Analyzer Operator's Manual
CETAC M-7600 Mercury Analyzer Operator's Manual
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Operator’s <strong>Manual</strong><br />
Chapter 5: Maintaining the <strong>Mercury</strong> <strong>Analyzer</strong><br />
10 Locate the mA ADJ potentiometer and use a small flat-blade screwdriver<br />
(jewelers screwdriver) to adjust the lamp current.<br />
Figure 5-27<br />
Adjusting the Lamp Current.<br />
‣ Begin by rotating the potentiometer fully clockwise until the OVER RANGE<br />
LED lights, then counterclockwise until the lamp current reads < 0.5 mA. At<br />
this point, the lamp is ready for adjustment.<br />
‣ Adjust the lamp current potentiometer until the marker is in the center<br />
(the green region) of the scale.<br />
‣ Clockwise will increase the current and counter-clockwise will decrease<br />
the current.<br />
‣ After each adjustment, click Check Lamp Current.<br />
‣ Let the voltage stabilize and make fine adjustments until the system<br />
stabilizes.<br />
11 Reinstall the cover and begin using the mercury analyzer.<br />
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