Servomex NanoTrace DF-760E, Instruction Manual

Page: 32 / 182

28 DF-760E Installation, Start Up and Shut Down
4.2
Analyzer Start Up
It is important to note that the moisture and oxygen sensors are isolated from gas flow
while the analyzer is off power.
NOTE: Shipping regulations require that the zero gas purifier be packaged separate from
the analyzer. As a result it must be installed by the end user. See page 129 for instructions.
Open the door and turn on the power using the main power switch inside the analyzer. See
Figure 2. The pump, if equipped, should turn on (see page 26) and the analyzer will
undergo a series of Diagnostic Procedures while the various startup screens are displayed.
Next, the Servomex logo is briefly displayed and then the data displays appear with the
“Warming Up” screens flashing. The warm up process takes approximately six to nine
minutes after which the display will look similar to Figure 6 (values shown are only
representative). It is important to note that the ultimate warm up time may take as much as
90 minutes depending on the conditions.
Note – During the six minute warm up period, all analog and digital outputs are held to an
artificial 0.011ppb reading to avoid the reporting of false readings.
See the section on Power Up Defaults on page 109 for setting user selectable preferences at
the time of power up.
During the Warm Up process the gas valves to each sensor can be opened and gas flow
started and flow rates and pressures can be set. See the section on Gas Pressure and Flow
Settings on page 29 for important information on the gas delivery system and setting
proper pressures and flow rates.
NOTE
During the warm up period all analog and digital outputs are held to
an artificial 0.011 ppb reading to avoid the reporting of false
readings.
Figure 6: Data Display Screen