4.4.2 Analog Tab
The following are the parameters on the
Analog
tab on the
Sensor Settings
pane. This tab is available for analog models.
Analog Span
Define the outer limits of the analog range. This can be used to create a positive or negative slope.
Analog output options:
Current: 4 mA to 20 mA
Voltage: 0 V to 10 V or 0.5 V to 4.5 V
Figure 5. Slope—Current-Sourcing Models
Target Position
Positive
Slope
Near
Window
Far
Window
Analog Output (mA)
20
4
The analog current output tracks slightly beyond
each window limit (from 3.8 mA to 20.2 mA)
Figure 6. Slope—Voltage-Sourcing
Models, 0 V to 10 V
Target Position
Positive
Slope
Near
Window
Far
Window
Analog Output (V dc)
10
0
The analog current output tracks slightly beyond the
upper window limit (up to 10.2 V)
Figure 7. Slope—Voltage-Sourcing
Models, 0.5 V to 4.5 V
Target Position
Positive
Slope
Near
Window
Far
Window
Analog Output (V dc)
4.5
0.5
The analog current output tracks slightly beyond
each window limit (0V - 5V)
Output
Loss–of–Signal
: Sets the Analog Output value used by the sensor during a loss of signal. When a signal is
restored, measurement resumes.
Hold Last Value—The Analog Output holds the last value indefinitely during a loss of signal.
3.5 mA (0 V)—The Analog Output switches to this value 2 seconds after a loss of signal. For Voltage models,
this is 0 V. (Default)
20.5 mA (10.5 V/5 V)—The Analog Output switches to this value 2 seconds after a loss of signal. For Voltage
models, this is 10.5 V.
Averaging
: Use this menu to set the number of measurements that are averaged together for the analog output.
Increasing the averaging improves repeatability but increases the total response speed. The default is 1. The filter
can be set to 1, 2, 4, 8, 16, 32, 64, or 128. The total response time is show under Response Time.
Response Time
Calculates the total response time, taking into account the general response speed and averaging.
Table 1: Analog
Response
Speed
Analog Output Filter Setting
1
2
4
8
16
32
64
128
Analog Output Spec (ms)
Fast
2
4
8
16
32
64
128
256
Medium
20
40
80
160
320
640
1280
2560
Slow
100
200
400
800
1600
3200
6400
12500
R-GAGE
®
T30R Sensor
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