UniData Communication Systems Starflow QSD Manual page 11

4.1.2 Channels Table
These Channels are data registers within the instrument. That the SDI-12 parameters are assigned to
the Channels and their order of return can be configured using the Sonic software utility and SDI-12
eXtended command.
Channel Description
0 Water Temperature
1 Battery Voltage
2 Ultrasonic Depth
3 CW Water Velocity
4 RSSI (signal level)
5 Signal Spread
10 X-Axis Tilt
11 Y-Axis Tilt
12 Pressure Depth
13 Barometric Reference
70 Conductivity (UC)
72 Conductivity (TC)
Default SDI-12 Parameters and Channels assignment are listed below
Parameter Channel
1
0
2
1
3
2
4
3
5
4
6
5
7
72
8
12
9
13
10
unassigned
11
unassigned
12
unassigned
13
unassigned
14
unassigned
15
unassigned
16
unassigned
Unidata Manual - 6527B and 6537A Starflow QSD User Manual 17 01 2020.docx
Manual – Starflow QSD Model 6527B and 6537A
Description
Water Temperature
Battery Voltage
Ultrasonic Depth
CW Water Velocity
RSSI (signal level)
Signal Spread
Conductivity (TC)
Pressure Depth
Barometric Reference
Units Example
1/10 ºC +152
1/100 Volts +1302
mm +123
+/- mm/s -234
no units +66
no units +45
+/- deg -9
+/- deg 7
+/- mm +123
+ mm +10120
µS/cm +2350
µS/cm +2350
Units
1/10 ºC
1/100 Volts
mm
+/- mm/s
no units
no units
µS/cm
+/- mm
+ mm
Meaning
15.2ºC
13.02Volts
123mm
234mm/s -ve flow
66 (no units)
45 (no units)
9 deg left tilt
7 deg forward tilt
123mm
10120mm
2350µS/cm
2350µS/cm
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