User`s guide

MASSA PRODUCTS CORPORATION
Product Manual- April 24, 2012 8 M3 Wireless Ultrasonic Level Sensor
3.0 Operating Modes for Gateway and Sensor
3.1.10 Dia.yml Settings Description – Ultrasonic Signal Sensitivity Setting (continued from previous page)
sensitivity
Description
Very Low This setting should be considered if application has a short maximum sensing range.
Low This setting should be considered if application has a short maximum sensing range.
Normal This is the default setting to be used in most applications.
High
This setting should be considered if application requires sensing out to maximum
specified range for sensor.
Very High
This setting should be considered if application requires sensing out to maximum
specified range for sensor and/or liquid surface is know to foam.
Custom
Some applications may have nuisance reflections that may have any options of
moving the nuisance or sensor mounting location (such as a ladder in a tank). Obtain
diagnostic waveforms in an empty tank then consult Massa Products for support in
setting up a custom setting for your application.
3.1.11 Dia.yml Settings Description – Custom Ultrasonic Signal Sensitivity Settings
The sensitivity settings listed here allow customization of the thresholds and timing for target detection on the
ultrasonic signal for more difficult applications. These are active when the “sensitivity” setting is set to 'custom'. As
described in section 3.1.10, most applications should use the sensitivity setting to 2 (Normal settings). These
customized sensitivity values will be seen when you obtain the sensor’s waveforms allowing them to be validated for
your application. Leaving these control line out of the dia.yml, blank value, or incorrectly typed setting value will not
access these sensor settings. Limits: see tables below.
sensitivity: ‘Custom‘ # Sensor Sensitivity (‘Normal’, ‘High’, ‘Very High’, ‘Low’, ‘Very Low’, ‘Custom’)
custom_sensitivity_threshold1: 0 # Custom sensitivity threshold #1
custom_sensitivity_threshold2: 0 # Custom sensitivity threshold #2
custom_sensitivity_threshold3: 0 # Custom sensitivity threshold #3
custom_sensitivity_threshold4: 0 # Custom sensitivity threshold #4
custom_sensitivity_threshold2_msec: 0 # Custom sensitivity switch time #2
custom_sensitivity_threshold3_msec: 0 # Custom sensitivity switch time #3
custom_sensitivity_threshold4_msec: 0 # Custom sensitivity switch time #4
Available Threshold Voltages (for setting ‘custom_sensitivity_thresholdx’)
Threshold Switch Time
Limits (for setting
‘custom_sensitivity_thre
sholdx_msec’)
Index
Voltage
Index
Voltage
Index
Voltage
Index
Voltage
0
off
6
0.96
12
1.31
18
1.66
1
0.70
7
1.05
13
1.40
19
1.75
2
0.79
8
1.14
14
1.49
20
1.84
3
0.82
9
1.17
15
1.52
21
1.93
4
0.88
10
1.23
16
1.58
22
2.01
5
0.93
11
1.28
17
1.63
Sensor Model
Threshold Switch Time Limits
(mS)
150 and 95 0.5465 – 24.8
50 1.57 – 109