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3654 Portable H2/N2 Analyzer - Operating Instructions 17 of 66
Operator Manual
ORBISPHERE
2 Operating Instructions
2.1 Operating Controls
The front panel of the instrument has a three-digit liquid crystal display (LCD). The LCD
includes a right-side marker to distinguish between gas concentration and temperature
display. This marker also indicates the measurement display units (g/kg, V/V, etc.)
depending on the instrument configuration. To the LCD's right is a label showing the
measurement units configured at the factory for your application.
In addition to the controls indicated on the front panel, there is also a pressure relief valve
on top of the instrument (as indicated in Fig 1-1 on page 9). This button need only be
pressed as part of the installation procedures, and/or if pressure builds up inside the
instrument due to large temperature changes.
The panel keyboard has the following push-button controls:
Fig 2-1:
Instrument Front Panel
Power switch. Turns instrument power on or places in standby. When
switched on, the instrument performs a series of start-up procedures
before switching to measurement mode
Places the instrument in measurement mode
Calibrates the analyzer against a reference sample. This button can
be locked out using the WIN3654 PC program