Galvanic Applied Sciences 943-TGX-CE, Operation Manual

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Revision 4 33 April 2020
All valves are clearly labeled according to their title and function. The Flow Diagram drawing
shown in Figure 13 provides a schematic of the flow streams in the analyzer sample handling
system.
Figure 13: Sample System Flow Diagram
In normal operation, valves V1, V3, and V5 inside the oven enclosure are open. Isolation on/off
block valves V2 and V4 are provided in the oven enclosure to do the sample probe steam-out
procedure, if required. Refer to Section 7.9 for the sample probe steam purge procedure.
3.2 Power Up Procedure
Once all the connections described in Section 2 of this manual have been made, the analyzer
can be powered up. The EPCU operates in Fully Automatic Mode. Once the purge sequence is
successfully completed, power will be applied to the analyzer..
To power up the analyzer, follow the procedure below:
1. Ensure that the control cabinet door is closed and latched fully. Both latches must be
turned to the locked position.
2. Switch on the AC power supply connected to the EPCU.
3. When safe pressure is detected by the EPCU, the rapid purge solenoid valve will be
activated after a 5 second delay. If the EPCU does not detect sufficient flow, a message
to this effect will be displayed on the EPCU screen, the
ENCLOSURE POWER
indicator will remain red, and the ALARM FAULT indicator will blink red. If the air flow
through the rapid purge solenoid is sufficient to meet the required flow rate setting, the
RAPID EXCHANGE indicator will illuminate in blue. The initial purge timer will begin