ABB EL3000 Series, Руководство пользователя

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108 EL3000 CONTINUOUS GAS ANALYZERS | CI/EL3000-EN REV. B
Fidas24: Gas analyzer start-up
Fidas24: Start-up of the gas analyzer
Switch on the power supply, heating-up phase, feed in supply gases
1 Switch on the power supply of the gas analyzer and the heaters of the
Fidas24.
2 The name of the gas analyzer and the number of the software version
are shown in the display while booting.
After the start-up phase has ended, the display switches over to the
measured value display.
3 Select the
Controller values
menu item:
Maintenance Diagnosis Device Status
Analyzer Status Controller Values
The actual values and setpoints and the controlled variables of the in-
ternal temperature regulators are displayed in this menu option:
T-Re.D
Detector temperature
T-Re.E
Temperature of the heated sample gas connection
T-Re.K
Temperature of the internal combustion air preparation
TR.VV1
Temperature of the preamplifier
The temperature values slowly increase after the power supply is
switched on.
4 Feed in instrument air, combustion air and combustion gas (H
2
or H
2
/He
mixture). Adjust the pressure to the value specified in the analyzer data
sheet with the corresponding external pressure regulator.
5 The controlled variables of the internal pressure regulator are also dis-
played in the
Controller values
menu option:
C-Air
Combustion air pressure
C-Gas
Combustible gas pressure (H
2
or H
2
/He mixture)
MGE
Pressure at the sample gas nozzle
MGA
Pressure in the combustion chamber (outlet)
The pressures of the supply gases are set by means of the controlled
variables. To begin with, any values can be displayed for the controlled
variables. The values are updated for the first time approx. 10 s after se-
lecting the menu option and then approx. every 10 s. The pressure con-
trol continues to run in the background. It may take some time to set
the pressures depending on the setting of the inlet pressure.
The gas analyzer automatically reverts to the measurement mode to
display values if the user has not pressed a key in menu mode in the last
five minutes.
6 The following status messages are active during the heating-up phase:
"Operating temperature": the temperature of the detector has not yet
reached the threshold.
"Flame error": the flame has not yet ignited.
"Temperature limit value 1, 2": the temperature of the detector (
T-Re.D
)
and possibly of the heated sample gas connection (
T-Re.E
) is over or
below the upper or lower limit value 1 (2).
"Pressure limit value 1, 2": the pressure at one of the internal pressure
regulators for instrument air (
inlet
,
outlet
), combustion air (
air
) or
combustion gas (
H2
) is over or below the upper or lower limit value 1 (2).
7 As soon as the temperature of the detector reaches the threshold value
(150 °C), the corresponding solenoid valve in the analyzer automatically
switches off the instrument air. The negative pressure regulation and
the combustion air regulation attempt to adjust the pressures to the
respective setpoint.
The sample gas begins to flow through the analyzer after the instrument
air is connected.