DISPLAY MODULE AND OFFICE CONFIGURATION EDITOR
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3-67
SIG-00-22-02 JUNE 2022 (Revised September 2022)
Version: B.1
3.5.1.7.1
Lamp Calibration
The lamp calibration process for an iLOD sets the internal threshold levels used by the iLOD
software to detect flashing lamp current. These levels are site-specific. It also is used by the
application program to determine the number of lamps and the current draw that is present for a
properly operating crossing. This process is not the same as factory calibration. Factory
calibration is performed on the iLOD units before shipment.
The Web UI is used to illustrate the calibration, it can also be done from the Local UI on the
Display Module.
If there is an application program loaded into the SEAR, enter the number of flashing lamps for
each iLOD sensor when requested.
If the site has Gate Tip Sensors installed, when asked to flash the lamps, make sure the gates
are level before pressing Enter.
The current reading is allowed to “settle” for 15 seconds.
Depending on the configuration of the crossing, it may be necessary to repeat this process with
AC power to the crossing turned off. At some installations, the process may be repeated more
times depending on configuration (split tracks, etc.).
Figure 3-104 Lamp Calibration Opening Screen