Taking Gas And Flow Measurement - LANDTEC GEM5000 Operating Manual

GEM5000 Gas Analyzer

8.13 Taking gas and flow measurement

If using GAM
Set up GAM &
START
UPLOAD to
analyser
If required select soft-
Select key 'Special Action' to
soft-key
update site & ID
'Exit'
question (ii)
Taking a gas measurement reading
Main Gas Read
Screen
Are you
using an
anemometer?
YES
Attach anemometer
& insert into the
sample point
Select
Taking a flow reading
soft-key
'Next'
Measure initial gas
flow reading displayed
in the Main Gas Read
Screen
Select
soft-key
'Next'
Wait for initial
Select
readings to stabilise
Soft-key
on the Main Gas Read
'Next'
Screen
Taking a system pressure reading
Pressure Readings
Fixed
Select
soft-key
'Store'
Readings stored
successfully
Instrument
warm up
Main Gas Read
Screen
Select
Gas Measurement
soft-key
screen
'Start'
Input the temperature
on the Main Gas
Read Screen and
press the 'Enter' key
NO
Connect the clear tubing to the static pressure
sample point. The blue tubing should be
connected to the differential pressure sample
point. The yellow exhaust tube must be vented to
atmosphere, a safe distance from the user.
DO NOT re-circulate back into the system.
Select
soft-key
'Next'
Select
Initial Flow
Soft-key
Readings Fixed
'Next'
Connect the clear sample tube to
Select
the sample point. The yellow
soft-key
exhaust hose should be vented a
'Next'
safe distance from the sample
point or re-circulated back into
the system.
Select
Take another
soft-key
reading?
'Dismiss'
YES
GO TO select or
add borehole ID
Select Technician Select
ID if required or soft-key
soft-key 'Skip' 'Next ID'
If configured -
Wait then
select operator may locate
soft-key sample point using
'Continue'
GPS
Connect the clear sample tube to
the sample point. The yellow
exhaust tube should be vented a
safe distance from the user or
re-circulated back into the
system.
NO Select soft-key
'Temperature'
Zero Transducers
screen
soft-key
Attach temperature
probe or key in readings to stabilise
temperature manually
and press 'Enter'
Disconnect all
tubing from the
sample points and
wait for readings
to stabilise. Select
Select
soft-key 'Next'
soft-key
if readings return
'Next'
to zero, otherwise
to remove an
offset perform a
If using GAM
NO
Download
readings to GAM
END
OMGEM5KN4.7.1
Select or Add
Borehole Id and Air Purge
press the 'Enter'
Instrument screen
key
Wait for Disconnect all tubing
Pump and allow analyser to
to run purge with fresh air.
Select soft-key 'Next'
(i)
Wait for the initial
Select
readings to
soft-key
stabilise
'Next'
Select
soft-key 'Next'
Are you
using a Initial Gas
temperature Readings Fixed
probe?
YES
Insert temperature
probe into the
sample point
Disconnect all tubing from the
sample points and wait for
readings to stabilise. Select
Select
soft-key 'Next' to continue
'Next' if readings return to zero,
otherwise to remove an offset
perform a zero
Wait for adjusted
Select
on the Main Gas Readings Fixed
soft-key
Read Screen
'Next'
Select soft-key
'System Pressure'
System Pressure
zero
KEY:
(i) If GPS configured the first reading
will display a warning message. Select
soft-key 'Dismiss' to continue.
(ii) Special action – if required change
the analyser into GA mode of
operation.
(iii) System pressure reading only
available if set up on GAM.
NOTE: To restart a reading select soft-
key 'Special Action' followed by key 1
'Restart Process'.
Page 55 of 70
Attach
temperature
probe
Adjusted Flow
Screen (iii)