TGA and Chromatograph
Hotwire Readings
·
The hotwire is updated 50 times / second. The maximum hotwire
reading is recorded each foot.
·
A real time file containing timed data is stored on the logging
computer.
·
The Hotwire is calibrated to 1% methane = 50 units
(This calibration can be set to 100 units or higher if
requested by the client)
·
Calibration and testing of the equipment can be done remotely from
the Suttles Office.
Chromatograph Readings
·
The chromatograph typically cycles every 5 minutes. This allows
enough time for the lighter hydrocarbons C1 - nC4 to elute from the
column. If heavier hydrocarbons are present, the chromatograph cycle
time will need to be increased.
·
The chromatograph readings are automatically recorded
and associated with the corresponding hotwire readings on the
log.
(NOTE: C4 readings recorded on the log are a total
of iC4 and nC4)
(NOTE: C5 readings recorded on the log are
a total of iC5 and nC5)
C1=Methane C2=Ethane C3=Propane iC4=Iso Butane nC4 Normal Butane iC5= Iso Pentane C5= Normal Pentane
Screen shot from the integrator on the logging software. This is 5
part test gas C1,C2,C3,iC4,NC4
