Detcon IR-700 - Manual (Page 18)

Model IR-700
IR-700 Instruction Manual Rev. 3.1 Page 14 of 40
Software Flowchart
dec
dec
Temp = XX C
mA Output = XX.XX
Ref Counts = XXXX
Voltage XX.X VDC
Sensor Life XXX%
Last Cal XX Days
Gas Factor = X.XX
Act Counts = XXXX
inc
PGM1/2 (M)
PGM2 (10)
Defaults Restored
PGM2 (S)
PGM1/2 (3)
PGM1 (S)
Restore Defaults
Auto Time-Out
##
Calibration Mode
(Auto Span)
AutoSpan @ XX
Range XXX
Serial ID XX
Gas Type
Auto Time-Out
Version X.XX
View Sensor Status
Model Type
PGM1/2 (3)
PGM1/2 (M)
inc
PGM1 (S)
PGM1/2 (3)
Auto Time-Out
PGM1/2 (M)
Set Serial ID
PGM1/2 (3)
AutoTime-out
PGM2 (S)
PGM1/2 (3)
PGM1/2 (M)
Set AutoSpan Level
##
PGM1 (3)
PGM2 (3)
Normal Operation
PGM1 (3)
PGM2 (10)
Calibration Mode
(Auto Zero)
inc - Increase
dec - Decrease
X, XX, XXX - numeric values
(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
PGM1 - Program Switch Location #1
PGM2 - Program Switch Location #2
LEGEND:
Setting Gain
PGM1/2 (3)
Simulation
Auto Time-Out
Set Gas Factor
Auto Time-Out
Signal Output Check
Auto Time-Out
Set Sensor Gain
Auto Time-Out
PGM1 (S)
PGM1/2 (M)
PGM1/2 (3)
PGM1/2 (3)
inc
PGM1/2 (3)
PGM2 (S)
Type ##
Set Gas Type & Range
PGM1/2 (M)
dec
inc
dec PGM1 (S)
PGM1/2 (10)
PGM1/2 (M)
PGM1/2 (3)
PGM1/2 (3)
PGM2 (S)
##
PGM1/2 (M)
PGM1 (S)
PGM1/2 (3)
inc PGM2 (S)
Range ##
dec
Figure 14 IR-700 Software Flowchart
3.3 Normal Operation
In normal operation, the ITM Display continuously shows the current sensor reading, which will normally
appear as “0”. Once every 60 seconds the LED display will flash the sensor’s measurement units and gas type
(i.e. % LEL). If the sensor is actively experiencing any diagnostic faults, a “Fault Detected” message will
flash on the ITM display once every minute. When the unit is in “Fault Detected” mode, PGM1 or PGM2 can
be swiped to prompt the sensor to display the list of the active faults.
In normal operation, the 4-20mA current output corresponds with the present gas concentration and full-scale
range. The RS-485 Modbus™ serial output provides the current gas reading and fault status on a continuous
basis when polled.
Caution: Off-scale readings may indicate a flammable concentration of gas.