Vympel CONG Prima 2M - 2 Taking Dew Point Measurements

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2 Taking dew point measurements
The Cong Prima 2M requires a secure power supply of 24V, connected to the analyzer at
terminal block 1 and 2 (Appendix A).
Once the analyzer is connected to the power supply and switched on, the operating software
immediately begins to load.
After the start-up sequence is completed, the CP 2M is ready for operation and is
automatically set to the main menu (illus. 11).
Illustration 11
(a) for dpW measurements
(b) for dpHC measurements
Depending on whether the target value is the dew point of water dpW (a) or hydrocarbons
dpHC(b).
Until the first dew point measurement is made and a dp value is determined, “NO” will be
shown on the display. (illus. 10)
In the case of both water and hydrocarbons, the initial electrical signal at the analogue 4…20
mA data port is 3.5 mA for a value of “NO”.
A small flashing letter is shown in the upper left-hand corner of the display. This letter
provides information about the operation currently underway within a given mode.
d
Diagnostic cycle for elements of the dew point measurement channel;
s
Mirror heating during the measurement cycle and temperature stabilization;
с
Mirror cooling;
h
Mirror heating;
сal
Calibrating the dpHC measurement channel;
After the measurement cycle is completed, the registered value for the dew point of water
dpW or hydrocarbons dpHC will be presented on the display (illus. 12).
The Cong Prima 2M then switches to “mirror cleaning” mode automatically.