Cambridge Sensotec Rapidox 1100E Oxygen Analyser Instruction Manual
Version 3.8
12
Last printed 29/08/2012 16:01:00
the required units. Once selected press ENT to store and return to run mode.
6.10
Setting the Display Options
The user can select the LCD refresh rate and the format of the line 2 display using
the keypad or the software provided. Scroll down the menu to option no. 5
“Display Setup” and press ENT. Use the UP & DOWN arrows to select either the
Line 2 Options or LCD refresh rate:
1.
Line 2 Options: The information displayed on line 2 of the LCD can be
chosen by the user. The options are Pressure (displayed in mbar, bar, torr
or KPa), the date and time (the date is displayed in local format and the
time as HH:mm:ss) or None (blank line). Use the UP & DOWN arrows to
select the display required and press ENT to store and return to the main
menu.
2.
LCD Refresh Interval: The display update interval be selected from 0.1 to
1.5 seconds. The current setting can be edited using the same method as
described in 0 for modifying the calibration gas values. Once edited press
ENT to store and return to the main menu. The default setting is 0.3
seconds.
6.11
Internal Pressure Sensor
The Rapidox 1100E is fitted with an internal absolute pressure sensor which
monitors small changes in pressure and vacuum inside the sensor head. The
pressure will normally be ambient absolute (e.g. 1013 mbar) under normal
operation but if the unit is being fed by a gas cylinder or connected to an
apparatus under partial vacuum then the pressure will change and this will have a
direct effect on the oxygen partial pressure and the sensor reading. You have the
option of displaying the pressure reading on the LCD display (1). Select no. 5
“Display Setup” and press ENT. Select “Line 2 Options” using the UP & DOWN
arrows and press ENT. You can set the display to read Pressure or None. Select
Pressure and press ENT. The display will now show the absolute pressure reading
from the internal sensor. If you want to view different units select no. 4 “Set
Units” from the menu and press ENT three times to reach the pressure screen.
Use the UP & DOWN arrows to select mbar, bar, torr, psi or kPa and press ENT.
The display will now show the pressure in the selected units.
6.12
Pressure Mode
The user has the option of using the reading from the internal pressure sensor to
automatically correct for changes in gas pressure and hence oxygen pressure. To
access this function scroll down to menu option 6 “Pressure Mode” and press
ENT. The desired mode can then be selected using the UP & DOWN arrows and
pressing ENT to store and proceed. The two modes available are:
Summary of Contents for SENSOTEC Rapidox 1100E
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