Galvanic Applied Sciences 943-TGXeNA, Руководство по эксплуатации

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Revision 5 120 August 2021
The SMA fibre connector set screws only need to be finger-tight. Do not
overtighten the set screws as this may damage the SMA fibre connector.
11. Optimize the integration period by using the FIELD NEXT / FIELD PREV keys to
highlight Optimize Integ. Time , then press ENTER.
12. Reinstall the cell RTD with the 6-32 x 3/8" screw using a 7/64" ball driver.
13. Make sure that both fibre optic cables are in their correct indent in the oven enclosure
frame, then replace the oven enclosure cover and securely fasten both latches.
14. Reconnect the AC Power to the oven heaters by pushing down and snapping closed
the oven heater fuse terminal cover (ACTS:25). The oven will begin heating to the set
point temperature.
15. Close and latch the oven enclosure cover.
16. Close and latch the control cabinet and oven cabinet doors.
17. Once the measurement cell temperature rises to >140°C, and the Cell Temperature
fault has cleared, use the PANEL NEXT / PANEL PREV keys to navigate to the
Analysis 1 panel. Perform a manual zero calibration cycle by using the FIELD NEXT
/ FIELD PREV keys to highlight Manual Zero , then press ENTER.
18. Once the manual zero calibration cycle is complete, place the analyzer into sampling
mode by highlighting the Sample checkbox using the FIELD NEXT / FIELD PREV
keys, then press ENTER. Alternatively, press the PURGE key.
19. Once normal operation has been confirmed, return the Online / Offline control toggle
on the Analysis 2 panel back to Online (green).
The oven can take up to two hours to reach operating temperature. While
the cell temperature is below the Low Cell Temperature fault set point, the
system will continue to back purge and maintain a fault indication to the
control room.
7.9 Steam Purging the Sample Probe
Steam Purging the Sample Probe is recommended only when a plug in the probe is suspected
and should only be performed as a last resort to avoid the possibility of steam or condensate
contamination in the sample cell, particularly on the cell windows. The residue of some boiler
water chemicals on the cell windows will cause a loss of spectrometer energy, potentially
resulting in High Integration Period warnings or even a fault condition in a worst-case scenario.
There are some indications potential warning signs that may indicate the potential need to
perform a steam purge of the probe. These include but are not limited to:
•
Absorbance spectrum and concentration readings remaining at zero even when the
analyzer is switched to sampling mode – this indicates that there may be a blockage
on the sample inlet side of the probe that is preventing sample from being drawn up
the probe and into the measurement cell.