Flowline LI90 Commander - Manual (Page 33)

27 AUG 08 PRELIMINARY MANUAL 33 of 57
Rev 1_3 Commander LI90 Series
• Configuration of Inputs
o
Once in the Secured Function Section, press the Config Inputs soft key
o
Press the Next or back soft keys to scroll to the input you would like to configure.
o
Upon selecting an input channel, the controller will ask for the following 6
settings to configure the input. The first four settings must be in the same units
(i.e. inches, cm, feet, m, etc.) typically in units of length. The last two settings
can be in any engineering units as long as they are the same (i.e. inches, cm,
gallons, liters, etc.)
1. Sensor Max. Range 2. Sensor Dead Band 3. Sensor Height
4. Sensor Fill_H 5. Empty Setting 6. Full Setting
1. Sensor Max. Range –This is the distance from the bottom of the tank to
the bottom of the installed sensor with a scaled 4-20 mA output. For a
fixed output, this is the maximum range of the sensor. Use the sensor’s
manual to obtain the sensors maximum range (4 mA output)
2. Sensor Dead Band – This is the distance from the full level of liquid to
the bottom of the sensor with a scaled 4-20 mA output. For a fixed output,
this is the dead band for the level sensor. Use the sensor’s manual to
obtain the sensors dead band (20 mA output).
3. Sensor Height – This is the distance from the bottom of the tank to the
bottom of the installed sensor.
4. Sensor Fill_H – This is the distance from the bottom of the tank to the
highest level of liquid.
5. Empty Setting – This is the display value when the tank is empty.
6. Full Setting – This is the display value when the tank is full.
• Use the Next soft key to advance to the next setting.
• Use the Back soft key to return to the previous setting.