INFICON Composer Gas Concentration Controller - Manual (Page 103)

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Composer Operating Manual
4.3.4.2.2 Bulk Flow Control Configuration
Refer to section 3.1.13 on page 3-11 for Bulk Flow Control specifics.
4.3.5 Description and Purpose of Displays
The following display types are available:
Š Standard Display Description, see section 4.3.5.1 on page 4-7
Š Optional - Composer LCD Display Description, see section 4.3.5.2 on page
4-9
4.3.5.1 Standard Display Description
There are nine high-intensity status LEDs on the front panel of the Controller.
See
Figure 4-2 .
NOTE: All LEDs are illuminated for approximately two seconds after the power
switch is cycled on to allow operational verification.
Figure 4-2 Composer front panel
CONCENTRATION . . . . . . . . . . . . A green LED that is illuminated when the
Instrument System is actively controlling
and modifying the voltage on the
CONTROL OUT connector and the
measured concentration is within the
Concentration Window parameter’s value.
The default value of concentration
tolerance is 0.01%
TEMPERATURE . . . . . . . . . . . . . . A green LED that is steadily illuminated
whenever the Transducer’s temperature is
within +0.1
°C to -0.2 °C of the set point. It
flashes slowly when the temperature is
below the range and rapidly when above.
POWER
RECEIVING
SENDING
HALT
WARNING USER SET ZERO
TEMPERATURE
STEADY
CONCENTRATION
STATUS
COMPOSER GAS COMPOSITION CONTROLLER