RediLevel 2100 DLS page 2
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7. Using the white depressor tool, install the six wires (4-wire communication) or four
wires (2- wire communication) as directed in the connection (hook-up) diagram in
Figure 3.
8. Plug in the connector and replace the side cover.
Sensor Calibration Procedure - Setting the Initial Offset
The RediLevel™ 2100 DLS is designed to provide an accurate and dependable level measurement for oil
and water levels in production tanks. The only calibration required is to set the offset value for the
sensor. This can be done in the sensor or at the EFM, RTU, or PLC by determining the difference of the
level between the electronic reading and the actual fluid level in the tank, measured with an approved
gauge line. Once the level offset is entered in either the sensor or SCADA system, the level offset will be
added to the raw value of the sensor to provide an accurate fluid level.
The level offset is determined by reading the sensor with the HHC-1000 Hand-Held Communicator while
simultaneously gauging the level in the tank. For best results, the tank should not be in active production
so that the fluid is not agitated at the time of reading. If it is not possible to isolate the tank, then it is
recommended to take several readings of both the sensor and gauge line to make sure the readings are
consistent.
Note: If there is no fluid in the tank, the level offset cannot be determined.
Note: The level offset is always added to the raw value. If a mistake is made when entering the level
offset, reset the offset value to zero before proceeding to avoid large swings in readings. If there is an
offset programmed in the sensor and the actual level is not correctly displayed, simply changing the
offset value will not include the previous offset value.
Example: If a 1.50” offset is entered and the sensor is still reading ¼” below actual level, the true offset
should be 1.75.” If you add a ¼” offset, the level reading will be 1.50” below actual level. Resetting the
level offset to zero will make it easier to determine the correct offset value.
Procedure:
1. Using the Hand-Held Communicator (HHC-1000), connect to the sensor and take initial
readings of level and temperature. Refer to the HHC -1000 User Manual for instructions.
2. If readings are providing multiple fluid levels, then verify that the two readings are more
than 3” apart. If the difference is less than 3”, the two floats will be touching and a valid
offset cannot be determined.
3. Verify that the first level is more than 3”. If less than 3”, then the bottom float is sitting
on the bottom of the tank and level offset cannot be determined.
4. Using a gauge line, measure the actual level in the tank and note the level. Subtract the
electronic reading from the gauged level to determine the level offset value.
For example, if the actual level is 156.25” and the DLS reading is 155.50,” then the offset
value will be 0.75” (156.25-155.50=0.75).
5. To program the level offset in the sensor using the HHC-1000, go to the “Set Points”
menu and then to the “Level” menu. Press F2 in the “Level” menu to bring up the level
offset screen.
