Super Systems PGA3000 - Manual (Page 5)

SSi Manual 4549 Page 5 of 16 3-Gas Analyzer PGA3000
Revision Level E
The ideal flow rate for sampling should be between 1.0 and 1.5 Standard Cubic
Feet per Hour (SCFH). A visual indication of flow rate can be obtained through
the mini flow meter located on the inside of the lid of the case, or by the digital
flow meter on the left side of the display. The flow meter on the inside of the
case also contains a dial that allows the user to restrict the flow if necessary to
maintain an appropriate flow rate. If the sample gas is not under pressure, the
internal pump can be used to extract it. The internal pump can be operated
manually, or it can be turned on or off automatically when it detects low sample
flow.
Filters
There are two filters that are intended to prevent soot or other contaminants
from entering the unit. The first is an in-line filter that is located at the end of
the sample tubing assembly. The second is a bowl filter located on the inside of
the lid. Periodic inspection of these filters will ensure smooth operation. When
new, the elements in both of these filters are white. Both are oriented in the
sample stream in a manner that causes any contaminants to collect on the
outside of the filter media, which allows for a visual inspection of filter status.
Condensation / Moisture
When a hot gas is cooled rapidly, moisture in the gas can condense and form
water. This water can collect in the sample tubing assembly, and eventually
enter the bowl filter. Care must be taken to ensure that no water enters the
unit, as this will cause permanent damage to the sensors. The unit should be
closely monitored during operation to determine if moisture is collecting in the
bowl filter. If this is the case, the bowl filter basin can be removed and emptied
by unscrewing it. Although water in the bowl filter will not cause damage to the
unit, this filter is not intended to be used as a condensation receptacle. If
moisture has collected in the bowl filter, sampling should be stopped, and steps
should be taken to prevent this from occurring before operation is resumed.
Battery
The battery in the PGA3000 in intended to provide more than enough power to
operate the unit continuously for an eight-hour shift. When
Battery Low is
displayed on the LCD screen, the unit is in need of a charge. To charge the
PGA3000, plug it into a 110 or 220VAC power source using the supplied power
cord. The LED above the power cord input is red while the unit is being charged,
and it will turn to green when charging is complete.
For maximum battery life, do not recharge the battery after each use unless the
Battery Low message appears on the screen. Reducing the number of times that
the unit is charged will maintain the battery’s original storage capacity for a
longer period of time.