Serinus® 10 User Manual 3.2
5. Place the nut back onto the fitting and tighten clockwise until finger tight.
Figure 23 – Tighten Nut
6. Nuts should be re-tightened when instrument reaches operating temperature.
7. Follow the same above procedure to connect calibration and exhaust line.
Sample Port
The sample port must be connected to an ambient source of sample air. When using a sample manifold
the Serinus requires at least 1.0 slpm delivered to the sample manifold (0.5 slpm for measurement
plus approximately 0.5 slpm excess).
Calibration Port
The calibration port can be connected to the span/zero air sources. It is recommended that a gas
calibrator (Ecotech’s Serinus Cal 3000 or 300) be used which can deliver precise concentrations of
Ozone.
Note: All connections to this port should not exceed ambient pressure. A vent is required for excess
span gas.
Exhaust Port
The exhaust port is where the measured sample and calibration gases are exhausted from the
instrument. The exhaust port should be connected to the vacuum pump using ¼” OD tubing. The
P030004, 240 V vacuum pump (P030005, 110 V) available from Ecotech, should be used to provide the
required vacuum and flow for one Serinus 10 analyser as well as two other instruments such as a
Serinus 30 or Serinus 50.
CAUTION
It is recommended that exhaust air is expelled into an unoccupied area.
Furthermore, the exhaust must be a suitable distance from the sample port to
avoid influencing the ambient measurements.
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