Ametek Thermox WDG-1200 Insitu, Руководство пользователя

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4-30 | Thermox WDG-1200/1210 Insitu Probes
Manual calibration
The Manual Calibration sub-menu has two options:
• Zero
• Span Calibration
These options are accessed by pressing Enter from the Manual Calibration
display. Both options are initiated by connecting the appropriate calibration gas,
pressing Enter , waiting for the reading to settle, and then pressing Enter to con-
tinue, or pressing F1 to bypass the option.
To avoid possible errors which can be introduced by separate zero
and span calibration, the zero and span MUST be calibrated to-
gether.
▼
Manual calibration
Zero and span calibration are performed manually from this sub-menu
.
Set all configuration options before performing calibrations.
▼
Zero calibration
Supply calibration gases to the probe using the calibration gas inlet at a steady
flow of 1.4 l/min (3 ft
3
/hour) to 2.8 l/min. (6 ft
3
/hour), and then press enter . The
reading displayed will need approximately 120 seconds to settle.
NOTE

Recommended zero calibration gas concentration is 1% O
2
in nitrogen.
▼
Zero calibration reading
Calibration is necessary if the reading displayed is incorrect (i.e., not equal to the
zero calibration gas concentration). Calibration is performed by holding down
enter for two seconds. The option can be bypassed by pressing f1 .
NOTE

NOTE
