Detcon TP-624D - Manual (Page 22)

Model TP-624D
TP-624D Instruction Manual Rev. 0.4 Page 18 of 40
NOTE 2: If the sensor fails the stability criteria, a “Stability Fault” will be declared and a
“Fault Detected” message will be displayed alternately with the sensor’s current reading. The
4-20mA output will be taken to 0mA. The “Stability Fault” bit in Modbus register 40005 will
be set.
NOTE 3: If the sensor fails the clearing time criteria, a “Clearing Fault” will be declared and a
“Fault Detected” message will be displayed alternately with the sensor’s current reading. The
4-20mA output will be taken to 0mA. The “Clearing Fault” bit in Modbus register 40005 will
be set.
NOTE 4: The most common cause of “Range Fault” and “Stability Fault” is the improper
storage of the unit / sensor cell. When the sensor power is removed for any period of time, the
sensor cell should be protected with a Desiccant Pack (P/N 960-240010-000) and covered by
the Dust Cap (P/N 600-003307-000)
3.5 Program Mode
Program Mode provides a “View Sensor Status” menu to check operational and configuration parameters.
Program Mode provides for adjustment of the AutoSpan Level, Sensor Range, Heater Power, Serial ID, Alarm
and Fault Settings. Additionally, Program Mode includes the diagnostic functions “Signal Output Check” and
“Restore Factory Defaults”.
The Program Mode menu items appear in the order presented below:
View Sensor Status
Set AutoSpan Level
Set Range
Set Heater Power
Signal Output Check
Restore Default Settings
Set Serial ID
Alarm 1 Settings
Alarm 2 Settings
Fault Settings
Navigating Program Mode
From Normal Operation, enter Program Mode by holding the magnet over PGM2 for 4 seconds (until the
displays starts to scroll “View Sensor Status”). Note, the “▼” prompt will show that the magnetic switch is
activated during the 4 second hold period. The sensor will enter Program Mode and the display will display
the first menu item “View Sensor Status”. To advance to the next menu item, hold the magnet over PGM1 or
PGM2 while the current menu item’s text is scrolling. At the conclusion of the text scroll the arrow prompt
(“▼” for PGM2 or “▲” for PGM1) will appear, immediately remove the magnet. The display will advance to
the next menu item. Repeat this process until the desired menu item is displayed. Note, PGM1 moves the
menu items from right to left and PGM2 moves the menu items from left to right.
To enter a menu item, hold the magnet over PGM1 or PGM2 while the menu item is scrolling. At the
conclusion of the text scroll the “▼”prompt (“▼” for PGM2 or “▲” for PGM1) will appear, continue to hold
the magnet over PGM1 or PGM2 for an additional 3-4 seconds to enter the selected menu item. If there is no
magnet activity while the menu item text is scrolling (typically 4 repeated text scrolls), the sensor will
automatically revert to Normal Operation.