User guide
6 - 11
PN 074-566-P1B
Composer Elite Operating Manual
6.3.7.2 Heater
The Heater tab (see Figure 6-9) provides lists for changing temperature setpoints
for the Acoustic Sensor's resonant chamber and inlet tube.
Figure 6-9 Parameter heater tab
Setpoint 1 . . . . . . . . . . . . . . . . . . . . Operating temperature of the Acoustic
Sensor’s resonant chamber. Values between
30.0to 65.0C are supported.
Setpoint 2 Delta . . . . . . . . . . . . . . . The desired operating temperature for the
Acoustic Sensor's inlet tube as a delta from
the setpoint 1 temperature. Values between
-10 to +10°C are supported. The change to
Setpoint 2 will still be limited to the range
30 to 68°C.
6.3.8 Zero Reference
For absolute accuracy, it is recommended that the Reference Zero frequency be
established with pure carrier gas before running a process. Calibration obtains the
exact frequency and determines Reference Zero. Refer to section 3.2, Calibration,
on page 3-2. Zero Reference should only be pressed during calibration, as it may
cause offset errors in the concentration calculation.
Reset Reference reinstates the Factory Zero calibration value.
Figure 6-10 Zero reference