Detcon TP-624D - Manual (Page 25)

Model TP-624D
TP-624D Instruction Manual Rev. 0.4 Page 21 of 40
Set AutoSpan Level is used to set the span gas concentration level that is being used to calibrate the sensor.
This level is adjustable from 10% to 50% of selected full-scale range. The current setting can be viewed in
View Program Status.
The menu item appears as: “Set AutoSpan Level”.
From the Set AutoSpan Level text scroll, hold the magnet over PGM1 or PGM2 until the “▼” prompt
appears and continue to hold the magnet in place for an additional 3-4 seconds (until the display starts to scroll
“Set Level”).
The display will switch to “XX“(where XX is the current gas level). Swipe the magnet
momentarily over PGM1 to increase or PGM2 to decrease the AutoSpan Level until the correct level is
displayed. When the correct level is achieved, hold the magnet over PGM1 or PGM2 for 3-4 seconds to
accept the new value. The display will scroll “Level Saved”, and revert to “Set AutoSpan Level” text scroll.
Move to another menu item by executing a momentary hold, or return to Normal Operation via automatic
timeout of about 15 seconds (the display will scroll “Set AutoSpan Level” 4 times and then return to Normal
Operation).
3.5.3 Set Range
Set Range is used to change full-scale ranges. This is selectable between 0-20, 0-50, and 0-100ppm. The
current range can be viewed in View Sensor Status using instruction given in Section 3.5.1 View Sensor
Status.
The menu item appears as: “Set Range”.
From the “Set Range” text scroll, hold the programming magnet over PGM1 or PGM2 until the “▼” prompt
appears and continue to hold the magnet in place for an additional 3-4 seconds (until the display starts to scroll
“Set Range”). The display will then switch to “XXX“(where XXX is the current Range). Swipe the magnet
momentarily over PGM1 to increase or PGM2 to decrease the range Level until the desired range is displayed.
Hold the magnet over PGM1 or PGM2 for 3 seconds to accept the new value. The display will scroll “Range
Saved”, and revert to “Set Range” text scroll.
Move to another menu item by executing a momentary hold, or, return to Normal Operation via automatic
timeout of about 15 seconds (the display will scroll “Set Range” 7 times and then return to Normal Operation).
NOTE: When switching between ranges, it may be necessary to readjust the AutoSpan Level.
3.5.4 Set Heater Power
Set Heater Power is used to set each H
2
S sensor to the optimum operating temperature. This function is
performed during factory calibration of each TP-624D sensor assembly, and is not necessary during
installation. However, it is necessary to perform in the field if the plug-in H
2
S sensor is replaced, mounted
remotely from the Transmitter Module, or if the Restore Factory Defaults function has been executed.
The menu item appears as: “Set Heater Power”.
NOTE: “Set Heater Power” is only necessary after new plug-in H
2
S sensor installation,
mounted remotely from the Transmitter Module, or after use of the “Restore Factory Defaults”
function. A full 3-4 second magnet hold on PGM1 or PGM 2 is required to execute this
function.
From the “Set Heater Power” text scroll, hold the programming magnet over PGM1 or PGM2 until the “▼”
prompt appears and continue to hold the magnet in place for an additional 3-4 seconds (until the display starts