HB Products HBLC Manual page 15

Basic settings
Here you make the primary settings of the sensor
Here you set the parame-
ters for the control func-
tion.
When "Run in signal" is
set to off the sensor con-
trol continuously when set
to on, control only when
signal is applied on pin5
Here you set the alarm
level. This is only for
versions without cable
for valve control
Here you can adjust
minimum and maxi-
mum
Setpoint level in % (control mode
the level indicator.
P-band in % (control mode
upon the deviation from the desired level. If proportional band is set to 10%, for example, a liquid level that is under 5% will
make the valve open 50%; the valve will open to 100% if the level is under 10%. Small proportional band results in a system
which reacts quickly, while a large proportional band results in a system that reacts more slowly.
Filter time const. in sec. Filter function: Averages the measurement so that the control function is performed based on an av-
erage measurement in a programmable time span (in seconds). This is increased if there are brief fluctuations in the measure-
ment which lead to unstable control.
Run in signal remote activation: with this function it is possible to activate centralized control. If one does not want this, the
function must be set to OFF, otherwise the sensor's control function will not work (power LED will flash when run-in signal is
active or if this function is deactivated).
Zero & span cal. Function Calibrating function: ON in case calibration of the sensor is allowed. After start-up and possibly the
first calibration, the tool can be connected and is deactivated.
Alarm setting in % Alarm, H/L: Indicates the desired alarm level. It is given in % of max measurement range.
Alarm delay in sec Delay – alarm: The delay from when the liquid level falls/rises to under/over the selected alarm, indicated in
seconds.
Offset max/min level in mm. here you can adjust for a sensor smaller than the vessel at max level and min level
Select mechanical type: select the type of sensor you have
Refrigerant: Indicates the type of refrigerant the sensor shall measure on.
Measurement length in mm Measurement in mm: Indicates the length of the sensor in mm typically printed on the electrical
part
Rigid level sensor manual 01
only) Desired level: Shows the percentage level that one wants to remain in the container or
only) Proportional band: Control area that describes how much the valve should open, dependent
Select remote setpoint
if you use that.
May 2020 HBproducts.dk
Filter time averages
the output over a peri-
od and reduce fluctua-
tions
Here you set the pa-
rameters for the sen-
sor
Zero & span. When off
is selected the "R"
button can't be used
15