15
Once the gas type is selected, use the
arrows to the right of the gas value input
box to increase or decrease the value.
If changes need to be made to the
settings for the other gas ports, click on
the Gas appropriate tab to access the
gas setting for Ports 2, 3 and 4 and
perform the same procedure.
Calibration
values shown in the Gas Port tabs
must match those appearing on the
calibration gas cylinder(s) that will be
used to calibrate the detector. Non-
matching calibration gas and
calibration gas value settings will lead
to inaccurate and potentially
dangerous readings.
Optimize O2 Bump Test
The IQ6 Dock is set to automatically
challenge oxygen sensors in the PHD6
with diminished levels of oxygen to verify
their response. For the oxygen sensor to
pass a bump test, calibration gas
containing less than 19.0% oxygen must
be connected to the dock and the
detector must detect the drop in oxygen
levels. If calibration gas with less than
19.0% oxygen is not detected, the PHD6
will automatically fail the oxygen bump
test.
The
Optimize Bump Test
option
controls how the oxygen test is
administered through the dock. The
“Optimize O2 Bump Test” option is
controlled by a checkbox that is located
below the Gas Configuration tabs on the
right side of the screen.
If “Optimize O2 Bump Test” is enabled
(checked), the IQ6 Express Dock will
automatically bump test the PHD6’s
oxygen sensor using the cylinder with the
lowest amount of oxygen available to the
IQ6 Dock.
If “Optimize O2 Bump Test” is disabled
(unchecked), the IQ6 Express Dock will
automatically bump test the PHD6’s
oxygen sensor using the cylinder with the
lowest amount of oxygen that is
necessary to process the other sensors
in the instrument.
Practical Example:
Two cylinders of gas are connected to
the IQ6 Express:
Cylinder 1
contains 50PPM CO, 25PPM
H
2
S, 50%LEL and 18.0% O
2
.
Cylinder 2
contains 10PPM SO
2
and
0.0% O
2
.
The
PHD6
is a standard 4-gas model
with O
2
, LEL, CO and H
2
S sensors.
If “Optimize O2 Bump Test” is enabled,
the IQ6 Dock will bump test the O
2
sensors using the Cylinder 2, which
contains 10PPM SO2 and 0.0% oxygen
– even though PHD6 isn’t equipped with
an SO2 sensor.
If “Optimize O2 Bump Test” is not
enabled, the IQ6 Dock will bump test the
O
2
sensors using the Cylinder 1 – which
contains all gases necessary to calibrate
this particular PHD6.
Saving new settings
When all necessary changes have been
made, press the “Set Configuration”
button to upload the new settings to the
dock.
The software will notify you once the
dock configuration has been updated.
Dock LCD Display
At the lower left corner of the Dock status
tab is Dock LCD Display window. This is
most often used when a dock is
controlled remotely via Ethernet where
the PC user is unable to physically see
the dock.
