Ametek Thermox WDG-1200 Insitu, User Manual

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4-26 | Thermox WDG-1200/1210 Insitu Probes
Zero and span calibration
Full (zero and span) calibration may be carried out manually, set to occur auto-
matically at defined time intervals, or triggered from a remote device. To set the
calibration options you must enter the password, set the maintenance relay, and
select the
Calibration
menu.
Configuration of calibration parameters must be completed as shown overleaf
before full calibration is carried out.
The following information is required:
• Span gas concentration
• Zero gas concentration
• Time until first calibration
• Time necessary for the calibration gas flow to stabilize
• Time interval between calibrations
access to calibration Menu from Menu spine
oxygen concentration
▼
The oxygen concentration measured by the probe is displayed first
and will take no longer than 20 minutes to stabilize after connect-
ing the power supply.
Password
▼
Access the password by pressing f1 from the O
2
display, selecting
the password using the UP and doWn keys, and then pressing
enter again.
NOTE: The analyzer password is 417.0
Maintenance relay
▼
The maintenance relay can now be set by pressing the UP or
doWn key to select Yes to activate the relay (the two outer deci-
mal points on the display will flash). Select no to deactivate the
relay.