30 | GE Oil & Gas ® 2014 General Electric Company. All rights reserved.
7.3.3. CALIBRATION ON SITE WITH PROCESS FLUIDS
a. From [BAS SETUP] menu, enter the [CALIB Z S] sub-menu.
b. Enter specific gravity of calibration for level application [SG CALIB] or the low and high specific gravities for interface
application [LSG CALIB] and [HSG CALIB].
c. Take all necessary actions to enable level variations into the displacer chamber: open/close isolation valves, vent, purge
…
d. Empty and fill the displacer chamber with fluid(s) of service to get level variations.
e. Wait for a few seconds until the displacer stabilizes to validate and save the values displayed on the LCD after each level
variation.
f. Low Level [ZERO]
f1. Liquid application:
Empty the displacer chamber.
f2. Interface application:
Fully immerse the displacer in the liquid of Lower Specific Gravity used for calibration [LSG CALIB].
f3. Enter and validate the [ZERO]: the [LEVEL:%] value indicated on the display must equal to 0.0%. If not, restart the
procedure until very close to this value. See Appendix B.
g. High Level [SPAN]
g1. Liquid application:
Fully immerse the displacer in the liquid of Specific Gravity used for calibration [SG CALIB].
g2. Interface application:
Fully immerse the displacer in the liquid of Higher Specific Gravity used for calibration [HSG CALIB].
g3. Enter and validate the [SPAN]: the [LEVEL:%] value indicated on the display must be equal 100.0%. If not, restart the
procedure until very close to this value. See Appendix B
h. Press the * button when [SAVE] is displayed to validate the [ZERO] and [SPAN] settings.
To Next Page
Loading...
