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