Super Systems DP2000 - Manual (Page 3)

SSi Super Systems Inc.
Product Manual - Model DP2000 Portable Dew Point Analyzer
SSi Manual 4545 – DP2000 Super Systems, Inc. Page # 3 of 17
Revision Level “F” (800 ) 666-4330
• When the unit is to be returned to SSi for service or any other reason, it should be
shipped in its original protective packaging. If this packaging is not available, protect
the instrument with at least four inches of foam or other impact-absorbing material.
• For maximum battery life, do not charge the unit until the “battery low” indicator on
the display is illuminated.
• This unit is not designed to measure the dew points in corrosive gasses, such as
Ammonia, S0
3
, Chlorine, and HCL.
• Please read and understand this Product Manual before operating the unit.
Failure to comply with these conditions may cause damage to the unit that will not be
covered under the warranty. Super Systems, Inc. is not responsible for damage to this
unit caused by disregard of these warnings, neglect, or misuse.
STARTUP –
The DP2000 Dew Point Analyzer has been calibrated and fully charged before it was
shipped from Super Systems, Inc. You can begin typical operation as soon as the unit has
been allowed to stabilize in a temperature similar to the temperature in the heat-treating
department. This is particularly important for units that may have been sitting overnight
in a delivery van in sub-zero weather, since the rapid temperature change can cause
condensation on the sensor which will cause the unit to temporarily display inaccurate
readings.
OPERATION -
The use of the DP2000 is somewhat dependent upon the application. Although they are
fundamentally alike, the operation procedures are different for sampling heat treating
furnaces and endothermic generators. Regardless of the application, allow the DP2000 to
operate for two to three minutes before recording any data. This assures that the sensor
has achieved equilibrium in the sample gas. Also, make sure that the in-line filter (P/N
31033 or equivalent) is clean and functional. Not only will this ensure that the sample
reading is not abnormally high (since soot tends to trap moisture), but it will also prevent
soot and other contaminants from entering the unit and damaging the sensor. The
optimum flow rate of the sample gas should be between 1.5 and 2.0 Standard Cubic Feet
per Hour (SCFH), although a flow rate as low as 1.0 SCFH is acceptable. If the unit is
reading less than 1.0 SCFH, verify that there are no obstructions to the flow such as a
clogged sample line or a poorly adjusted knob on the DP2000’s flow meter. If these
conditions do not exist, the unit may need to be returned to SSi for replacement of the
pump. The pump’s life is dependent upon how frequently it is used as well as the
cleanliness of the sample gas. Insufficient filtration will significantly reduce the
operating life of the pump.