Detcon P-1000 - Manual (Page 19)

P-1000
Portable Model 1000 H2S Analyzer Rev. 1.0 Page 15 of 24
must be programmed via the calibration gas level menu before proceeding with span calibration. Follow the
instructions below for span calibration.
1) Verify the current calibration gas level setting as indicated by the programming status menu. To do this,
follow the instructions in Section 5.1 and make note of the setting found in the calibration span gas level
setting. The item appears as “Auto Span Level / XX PPM”.
2) If the calibration gas level setting is equal to the calibration span gas concentration, proceed step 3). If
not, adjust the calibration gas level setting so that it is equal to your calibration span gas concentration:
a) Enter the programming menu by holding the programming magnet stationary over “PGM 2” for 15
seconds until the display reads “View Program Status”, and withdraw the magnet.
b) Scroll through the programming menu by momentarily waving the programming magnet over “PGM
1” or “PGM 2”. The menu options are: View Program Status, Set Span Level, and Set Date.
c) From the programming menu scroll to the calibration level listing. The menu item appears as: “Set
Span Level”.
d) Enter the menu by holding the programming magnet stationary over “PGM 1” for 3 seconds until the
display reads “Auto Span Level / ##PPM”, and withdraw the magnet.
e) Use the programming magnet to make an adjustment using “PGM 1” to increase or “PGM 2” to
decrease the display reading until the reading is equal to the desired calibration span gas concentration.
To accept/retain the newly entered value, hold the programming magnet over “PGM1” for 3 seconds.
NOTE: The newly entered span gas valve is not saved to permanent memory until a span
calibration is successfully executed with it. New span gas values that are not saved to
permanent memory will be lost when power is lost.
f) Exit back to normal operation by holding the programming magnet over “PGM 2” for 3 seconds, or
automatically return to normal operation in 30 seconds.
3) Connect the span gas to the “Span/Zero Gs Inlet Port” and switch the 3-way valve to the “Calibrate”
position.