Model CXT-IR
CXT-IR Instruction Manual
Rev. 2.1
Page 18 of 48
Operation
The Operator Interface of the Model CXT Series gas sensors is accomplished via two internal magnetic switches
located to either side of the LED display (Figure 16). The two switches, labeled
PGM1
and
PGM2
, allow for
complete calibration and configuration, eliminating the need for area de-classification or the use of hot permits.
Figure 15 Magnetic Programming Tool
The magnetic programming tool (Figure 15) is used to operate the magnetic switches. Switch action is defined
as momentary contact (a swipe), a 3 second hold, and a 10 second hold. (Hold times are defined as the time from
the point when the arrow prompt appears. Swiping the magnet does not display the prompt.) For momentary
contact use, the programming magnet is briefly held over a switch location, or swiped. For 3 second hold, the
programming magnet is held in place over the switch location for three seconds. For 10 second hold, the
programming magnet is held in place over the switch location for 10 seconds. The 3 and 10 second holds are
generally used to enter calibration/program menus and save new data. The momentary contact is generally used
to move between menu items and to modify set-point values. Arrows (
◄
and
►
) are used on the LED display
to indicate when the magnetic switches are activated. The location of
PGM1
and
PGM2
are shown in Figure
Figure 16 Magnetic Programming Switches
NOTE
While in the program mode, if there is no magnetic switch interaction after 4 consecutive
menu scrolls, the sensor will automatically revert to normal operating condition. While
changing values inside menu items,
if there is no magnet activity after 3 to 4 seconds the
sensor will revert to the menu scroll.
If the sensor is in Bump Test mode, the display will
remain active.
detcon inc
.
MODEL
CXT-IR
Programming Switch #1
LED Display
Programming Switch #2
