Commissioning
8
gas-lab
Q1
Page 123
8.5 Commissioning the sensor system
Prerequisites for the commissioning:
The Q1 evaluation computer and Q1 sensor system have been installed
according to the mounting instructions in Chapter 7. Power supply is switched
off.
The inlet valves for process and calibration gases located on the mounting plate
are closed and the gases are coming in with an appropriate pressure.
The needle valve at the flow meter of the sensor system’s vent gas line is partly
open to prevent the vent gas line from getting blocked.
Steps
1
Switch on the power supply of the Q1 sensor system.
2
Switch on the power supply of the
gas-net
Q1 evaluation computer.
The Q1 computer communicates with the Q1 sensor system
(uploading of calibration data etc.) and injects process gas. The display
shows
Waiting for PG
.
The gas paths and in particular the pressure controllers are purged in the next
step.
3
Invoke the
Purge
menu at the Q1 computer.
Gas path 1
is displayed. If
you press the Enter key while being in this display, a box for selecting the
gas path (1 = process gas, 2 = calibration gas, 3 = optional inlet) will
appear. Choose the corresponding path by means of the arrow keys and
invoke the menu afterwards. Confirm your selection via
OK
or abort it via
Cancel
.
4
4. e.g. choose gas path 1 (process gas path).
The following description assumes that you have chosen gas path 1 in
step 4 (process gas path).
5
Open the inlet valve of the process gas very slowly.
6
The flow controller of the sensor system
’s vent gas line must be set to
30l/h (top of ball).