48 Hydro-View User Guide HD0531 Rev 2.0.0
Digital In 1
- Light indicates the status of Digital Input 1. Red for active (24V applied); White
for inactive.
Digital I/O 2
- Light indicates the status of Digital Input / Output 2 when this is configured to
be used as an input. When this is configured to be used as an output only, an ON / OFF
button allows the output to be set.
4mA
- Pre-defined current output setting for Output 1. Toggles in the sequence:
•
0mA, 4mA, 10mA, 12mA, 20mA
4mA
- Pre-defined current output setting for Output 2 if fitted. Toggles in the sequence:
•
0mA, 4mA, 10mA, 12mA, 20mA
OK
- Completes the test and closes this screen.
6.5
Signal Processing
6.5.1
Averaging
The Sensor Averaging Screen is used to configure sensor alarms and averaging
parameters.
Figure 30: Averaging Screen
Average / Hold Delay
- Shows the current Average / Hold Delay.
When using the sensor to measure the moisture content of a material that is discharged
from a bin or silo, there is frequently a short delay between the control signal issued to
begin the batch and the material beginning to flow over the sensor. Moisture readings
during this time should be excluded from the batch average value as they are likely to be
an unrepresentative static measurement. The ‘Average/Hold’ delay value sets the
duration of this initial exclusion period. For most applications 0.5 seconds will be adequate
but it may be desirable to increase this value.
Options are: 0, 0.5, 1.0, 1.5, 2.0, 5.0 seconds
Moisture High
- Shows the current Moisture High value.
The upper limit of moisture values that will be included in the average calculation. If this
value is exceeded, the Data Invalid output is set (if selected).
Moisture Low
- Shows the current Moisture Low value.
The lower limit of moisture values that will be included in the average calculation. If the
moisture falls below this value, the Data Invalid output will be set (if selected) and the Bin
Empty output will be set (if selected).
Unscaled High
- Shows the current Unscaled High value.
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