Honeywell XNX, Техническое руководство

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XNX Universal Transmitter
Section 2 - Installation and Operation 61
When a new gas is selected, these screens are displayed:
Figure 81. Select New Target Gas
Note:
The gas selections available will vary with different types
of sensors. Gases listed with a “-2” suffix are compliant with
60079-20-1 LEL levels.
Warning: When selecting a new target gas for units with a
Searchpoint Optima Plus, the sensor must be recalibrated.
These are the XNX transmitter’s selectable gases:
• Butane (C
4
H
10
)
• Carbon Dioxide (CO
2
)
• Ethanol (C
2
H
5
OH)
• Ethylene (C
2
H
4
)
• Hexane (C
6
H
14
)
• Hydrogen (H
2
)
• Methane (CH
4
)
• Methanol (CH
3
OH)
• Propane (C
3
H
8
)
• Star 1 through Star 8
1
Warning: Do not use the XNX Universal Transmitter in oxygen-
enriched atmospheres. Concentrations displayed will be adversely
affected by oxygen depletion.
Changing the Gas or Units Name
If “Other mA Sensor” has been selected as the sensor type, the
existing gas and units can be renamed� From the Gas Selection
menu, select
✓
to open the Gas Name menu� Select
✓
again to
open the Gas Name editing display� The first letter of the current
selection will be highlighted (Figure 82)�
Figure 82. Gas Name Screen / Gas Name editing screen
Use the switches to cycle through the 76 options (26 capital
letters, 26 lower case letters, 10 numbers, 13 typographic
characters, and a space)� When the first character of the new
gas name has been reached, select
✓
to advance to the second
character� Repeat this procedure with each character until
the new gas name is displayed� In this example, “mA Sensor”
has been changed to “Flow Sensor” (Figure 83)� The name
can be up to 15 characters long� Select
✓
to return to the Gas
Name screen� The new name will be displayed in reverse (light
characters on a dark background)� Select the switch twice to
display the Accept Settings screen� Select
✓
to accept the new
gas name� A “Settings Accepted” screen will be displayed briefly,
followed by the Gas Selection menu�
✓
Figure 83. Accepting the New Gas Name
Follow the same procedure to rename the units (“%” in the
illustrations)� The units name can be up to 5 characters long�
1 In nonane detection applications, if an MPD-CB1 sensor is employed, use star rating 2; with SP-HT
sensors, use star rating 4.