PlasmaDetekProducts015

HUMIDITY CONTROL DEVICE (HCD)

Moisture is the worst « enemy » of nitrogen in the plasma. First of all, its emission wavelength is closed to nitrogen and some

interference can occur. Furthermore, the level of energy available in the plasma is more consumed by H2O than N2. That reduces the

light intensity of nitrogen ending by a loss of sensitivity.

In each LD8000, a Humidity Control Device is included in the detector module. This device introduces a constant amount of H2O and

other chemical vapors compounds in the detector to stabilize the influence of the moisture on the measurement of N2. With the

combination of the moisture trap installed outside of the cabinet on the sample line, the analyzer becomes stable at any variation of

humidity in the sample.

MAINTENANCE ?

No maintenance is required in the analyzer. The detector is a non-depleting type device as well as the other components inside the

cabinet. Same for the flow control system, however if a defective part needs to be changed, no need to change a complete and

expensive flow module or MFC (Mass Flow Controller). You can replace only the micro-valve or transducer.

The unit has been designed in a way to make life easier if parts need to be changed. No need to send back the instrument to factory.

Any kind of parts, including the detector module, can be replaced on site by a technician.

The moisture trap installed outside the analyzer should be replaced or regenerated every year to get the best performance in stability

and accuracy of the LD8000.

Figure 9

LD8000 with integrated zero calibrator & stream selector

Figure 8

LD8000 with integrated zero calibrator