
LevelMaster 7100 User manual 2105835 Rev AA |
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The board is being replaced with another board of the same type (no rewiring will be required). If replacing a board with part
number 2018546-005 to a board with part number 2104836-001, please refer to the LevelMaster upgrade kit application
guide.
There is a configuration or setup (.dat) file available that can be downloaded to the replacement board to preserve the
existing configuration and calibration data. If the board is still in working condition, obtain the configuration file as described
in section 8.10,
Restore sensor data and configuration
.
If the configuration file is not available and cannot be obtained from the existing board (due to board failure or local connection
failure), a generic or factory default calibration file can be used. Default files are included in the MasterLink version 2.0 directory,
in the DefaultDat folder. Select the files as follows:
If replacing board part number 2018546-005, select the file for the length of the sensor from the DefaultDat folder. These
boards are available until supplies last and are being phased out. If planning to support batteryless floats, then an upgrade
is required.
If replacing boards with part number 2104836-001, select the file for the length of the sensor from the DefaultDat/7.0 Head
board folder.
IMPORTANT NOTE:
If a sensor board is replaced due to failure, the original calibration file for the sensor must be
loaded into the replacement board. If the file is not available use one of the default files included in the installation
directory of MasterLink version 2.0. This version contains default files for specific lengths for both legacy boards
and newer boards.
Tool required:
Small slotted screwdriver
Remove the existing board
To remove the LevelMaster electronics board:
1.
Remove the power and cover as described in section 8.1,
2.
Disconnect the communication and power terminal connector(s) from the electronics board. There may be one or two
connectors depending on the board. Do not remove wires from connectors. They will be reinserted on the new board when
it is placed in the enclosure.
3.
Hold the board by the edges and pull it slowly out.
4.
Unplug the 16-pin connector at the bottom of the board. The 16-pin cable connects the electronics board with the internal
sensor assembly inside the casing.
5.
Remove the board and place it in a safe place.
Insert the new board
CAUTION – Equipment damage.
A static electric discharge can result in damage to the electronics board. Wear
a grounding strap to eliminate static electricity when connecting or disconnecting terminal connectors to and from
the board or when handling a board during installation or removal. Use an anti-static bag to store the board.
To insert a new LevelMaster electronics board:
1.
Remove the replacement board from the anti-static bag.
2.
If the board was shipped with terminal connectors, with the small slotted screwdriver remove the terminal connector(s)
from the power and communication (RS-485) port(s). There may be one or two connectors depending on the type of board.
3.
Plug the 16-pin connector from the sensor assembly into the new electronics board. The connector is keyed so it will only
plug in one way. Push some of the excess cable back down through the bottom of the sensor assembly while sliding the
electronics board back into position. Allow a small loop of cable to fold back towards the top of the enclosure.
4.
Brace the electronics board inside the housing by using the yellow fiberglass tab inserted into the enclosure.
5.
Bend the tab gently into a semicircle using the thumb and forefinger, making sure the apex of the arch is placed against
the board while the ends of the tab are braced to the inside of the housing.
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