Software flowchart, 2 normal operation, 3 calibration mode – Detcon CXT-DM User Manual
Page 22: Normal operation, Calibration mode, Figure 16 software flow chart
![background image](/manuals/366770/22/background.png)
Model CXT-DM
Software Flowchart
dec
LEGEND:
PGM1 - Program Switch Location #1
PGM2 - Program Switch Location #2
(S) - Momentary Swipe
(M) - Momentary hold of Magnet during text
scroll until the ">" appears, then release
(3) - 3 second hold from ">" prompt
(10) - 10 second hold from ">" prompt
Auto Time-out - 5 seconds
inc - Increase
dec - Decrease
#, ##, ### - numeric values
Serial N. ##.##.##
Temperature ##C
RF Channel ##
AutoZero
PGM1 (3)
PGM2 (10)
PGM2 (3)
RF App ##.##.##
CP App ##.##
RF SW ##.##
Modbus ID ####
inc
Auto Time-Out
View Sensor Status
PGM1/2 (3)
PGM1/2 (M)
MP App ##.##
PGM2 (S)
PGM1/2 (3)
PGM1 (S)
##
AutoTime-out
PGM1/2 (3)
PGM1/2 (M)
Set Detection Range
AutoSpan
Normal Operation
PGM1 (3)
Auto Time-Out
Auto Time-Out
inc
PGM2 (S)
PGM1/2 (3)
PGM1 (S)
##
PGM1/2 (3)
PGM1/2 (M)
dec
PGM1/2 (3)
Bump Test Started
PGM1/2 (3)
PGM1/2 (M)
Bump Test
PGM1/2 (M)
Defaults Restored
PGM1/2 (3)
Restore Defaults
Auto Time-Out
dec
inc
PGM2 (S)
PGM1/2 (3)
PGM1 (S)
##
AutoTime-out
PGM1/2 (3)
PGM1/2 (M)
Set RF Channel
Auto Time-Out
inc
PGM2 (S)
PGM1/2 (3)
PGM1 (S)
##
PGM1/2 (3)
PGM1/2 (M)
Set Modbus ID
dec
Set Autospan Level
Network ID ##
Range ###
Last Cal ## Days
Sensor Life ###%
2 minute timeout
Figure 16 Software flow chart
3.2 Normal Operation
In normal operation, the ITM Display will be blank and will display the gas reading once every 10 seconds for
about 2 seconds (normally appear as “0”). At any time swiping a magnet across either PGM1 or PGM2 will
cause the ITM to display the range and gas type (i.e. “ppm H2S”). If the sensor is actively experiencing any
diagnostic faults, a swipe of the magnet will cause the display to scroll the fault condition. Refer to Section 5
Service and Maintenance for more information on fault conditions.
3.3 Calibration Mode
CXT-DM Instruction Manual
Rev. 1.6
Page 18 of 52