January 2008
4-22 Setup and Calibration
Performing a Zero
Calibration (cont.)
At the following prompt, enter the percentage of target gas (H2 in this
example) in the zero gas mixture (usually 0.00%).
A
[YES] response at the next prompt sends the last live value to the
analog output, while a
[NO] response sends the calibration gas value to
the analog output.
Note: The value (x.x) shown at the above prompt is the current
measured value for the active gas curve.
The meter now recalibrates its zero point.
At the next prompt, the new zero drift value and an indication that the
meter passed or failed the calibration attempt are displayed.
Note: If the calibration “Failed”, repeat the calibration procedure.
If another failure occurs, contact the factory for assistance.
Gas-Curve: ..H2/CO2 Use [
W] and [X] to position the
cursor under the desired char-
acter. Then, use [
S] and [T] to
increment the value. Press
[ENTER] when done.
Enter Zero Gas Pcnt
xx.xx
s
Gas-Curve: Man..Cal Use [W] and [X] highlight the
desired answer (YES or NO)
to the question shown. Then,
press the
[ENTER] key.
Hold 4-20 mA Output
During Calibration?
YES
NO
Gas-Curve: Man..Cal Make sure the zero gas is
flowing, and use the [
W] and
[
X] keys to highlight [Next].
Then, press the
[ENTER] key.
Introduce Cal Gas
x.x H2/CO2
<Back
Next>
Cancel
Gas-Curve: Man..Cal When the displayed reading
has stabilized, use the [
W] and
[
X] keys to highlight [Next].
Then, press the
[ENTER] key.
Hit Next When Stable
x.x H2/CO2
<Back
Next>
Cancel
Gas-Curve: Man..Cal If the calibration “Passed”,
use the [
W] and [X] keys to
highlight
[Finish]. Then, press
the
[ENTER] key.
Zero Drift
x.xx mA Passed
<Back
Finish
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