Manual – Starflow QSD Model 6527B and 6537A
Unidata Manual - 6527B and 6537A Starflow QSD User Manual 17 01 2020.docx
Page 11
4.1.4 Starflow QSD - SET/RESET Option Settings (aX5)
To alter the operation of QSD, there are 32 option settings numbered 0 to 31. These affect QSD’s
performance so must be changed “wisely”. The aX5 eXtended command is used and several options
adjustments (set and/or reset) can be made using a single aX5 command. A SET option is a
<+value> and RESET a <-value>. The <value> is the option number 0..31. Undefined options MUST
NOT be changed.
Option No. SET Meaning
RESET Meaning
<value>
< + value>
< - value>
04
Enable Pressure Depth
Disable Pressure Depth
05
Zero P.Depth on Fail
Retain last P.Depth
06
Enable Barometric Ref
Disable Barometric Ref.
07
Show –ve P.Depth
P.Depth +ve only
08
Enable Electrical Conductivity (EC) Disable Electrical Conductivity (EC=0)
16
Enable Depth Measurement
Disable Depth Measurement (Depth = 0)
17
Depth = 0 if < Min Operating Level Retain last measurement
18
Enable Depth Drive 1
Disable Depth Drive 1
19
Enable Depth Drive 2
Disable Depth Drive 2
20
Enable Depth Drive 3
Disable Depth Drive 3
21
Enable Depth Drive 4
Disable Depth Drive 4
22
Use MEDIAN value for Depth
Use MAXIMUM value for Depth
24
Enable CW Velocity Measurement Disable CW Velocity (Velocity = 0)
25
CW Velocity = 0 if < MIN RSSI
Retain last measurement
26
Enable -ve CW Velocity
+ve Velocity regardless of direction
27
Enable SOS Temp Corr.
Don’t correct for SOS
31
Velocity = 0 if > MAX SPREAD
Retain last measurement
Examples:
Command Response
Meaning
aX03!
a3<
CR><LF>
Sensor address was “a” and now “3” **
aX1!
a+9+0+1+2+3+4+5+72+12
aD0/R0! will return 9 measurements
+13+0+0+0+0+0+0+0
<CR><LF>
from Channel Nos. listed
aX1+6!
a+6+0+1+2+3+4+5+72+12
<CR><LF>
>
Now will return 6 measurements (max 16)
+13+0+0+0+0+0+0+0
<CR><LF>
from 1
st
to 6
th
Channel Nos. listed
aX2!
a +1150+40+4+5000
<CR><LF>
Low battery limit is 11.50 Volts
Depth>40mm, RSSI>4,Spread>5000
aX2+1200!
a+1200+25+1+300
<CR><LF>
Low battery limit changed to 12.00 Volts
aX4!
a+3+0+3+0+3+0+3+0+3+0
<CR><LF>
Examine Outlier filter & Average setting
aX4+3+2!
a+3+2+3+0+3+0+3+0+3+0
<CR><LF>
Change Moving Average from 0 to 2
aX5!
a+1+16+17+18+19+20+22+24+27+30
Default SET Options***
aX5-18+21
a+1+16+17+19+20+21+22+24+27+30
Disable drive level 1, enable 4
aX7-33!
a-33<CR><LF>
Pressure Depth Offset = –33 mm of water
aX#!
a+nnnnn<CR><LF>
Restore Factory Defaults nnnnn=QSD Serial#
Notes: **
The Sensor address is an ASCII value so DOES NOT use a ± sign.
***
Only SET Options are displayed. Change order is not important.
****
Except for aX5, the order of changed parameters IS important. You MUST
re-enter all parameters occurring prior to the parameter you wish to change.