Super Systems DPC2530 - Manual (Page 4)

SSi
Super Systems Inc.
Product Manual #4553 - Model DPC2530 Continuous Dew Point Analyzer
SSi Manual 4553 – DPC2530 Super Systems, Inc. Page # 4 of 17
Revision Level “E” (800 ) 666-4330
50 to +80°F. When the instrument is set up in Celsius using these parameters, the input is
scaled from –45.6 to +26.7°C and the 4-20mA output is scaled from –45 to +25°C.
7EK Input Parameters
Parameter Fahrenheit Celsius
P1 16 16
P2 No Decimal Place One Decimal Place
P3 -50 -45.6
P4 600 315.5
P5 PU.rt PU.rt
P6 4 – 20 4 – 20
P7 - 50 - 45.0
P8 80 25
In addition to these parameters, the jumpers located at position J1 inside the instrument
should be set with one jumper connecting pins 1 and 2, and the other jumper connecting
pins 5 and 6. Once again, these jumper settings will be set at the factory prior to
shipment.
STARTUP –
The DPC2530 Dew Point Analyzer has been calibrated 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 -
To obtain consistent accurate readings from the DPC2530, be sure that the element in the
bowl filter on the side of the instrument 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 DPC2530’s flow meter.
Heat Treat Furnace Sampling: A gas sample may be extracted from a process using the
built-in pump. The sample tube from which the sample is taken out of the furnace should