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Emerson Process Management GmbH & Co. OHG 7-15
X-STREAM XE
Instruction Manual
HASXEE-IM-HS
10/2010
7
Maintenance & Procedures
7.4.1 Preparing a Calibration
7.4.1.1.3 Calibration Valve Assignment
For each channel a valve has to be assigned
zero gas valve or span gas valve, whereat the
valves can be freely assigned to any channel.
This includes:
• selecting the same combination for all
channels
• selecting combinations where one valve has
the same function for several channels
• selecting combinations where one valve
has different functions for several channels,
e.g. the channel 1 zero valve is the channel
2 span valve.
Depending on the gases used, this may allow
higher calibration performance.
To do so, enter SETUP - CALIBRATION -
VALVE ASSIGNMENT:
Multi-channel unit:
Select the component to be set in SELECT
COMPONENT.
On the rst menu page, congure the sample
and zero valves to be used for the selected
channel with their individual purge times (this
is the time needed to completely ll the cell
with the gas, after the valve is activated. If
the calibration is started earlier, the gas lines
will still contain other components and the
calibration will be inaccurate.).
"Correct assign" indicates, if the current as-
signment is correct (Yes), or not (No).
Setup..
Calibration..
Valve assignment..
Ch1
Valve assignment 1of3
Sample valve: V3
Purge time: 1 s
Zero valve: V4
Purge time: 1 s
Correct assign
Yes
Note!
The selected channel is indicated in the up-
permost display line!