OTT PLS 500, Руководство по эксплуатации

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7.4 Advanced SDI-12 commands
Command Response Description
▶
Set/read the unit of level/pressure measured values
aXSU<value>!
aXSU! a<value><CR><LF>
a<value><CR><LF>
Set unit
Read unit
a
– sensor address
<value>
–
Units for water level measurement
+0: m
+1: cm
+7: mm
+2: ft
+5: inch
The level measurement is carried out with com-
pensation of water density/salinity, water temper-
ature and local gravitational acceleration!
Units for pressure measurement
+3: mbar
+4: psi
+6: bar
+8: kPa
Pressure measurement is done w/o compensation!
Factory setting: m or ft
1)
Note
An "Offset" or "Reference" value can only be used if units
are set to meter or feet!
▶
Set/read the unit of measured temperature values
aXST<value>!
aXST! a<value><CR><LF>
a<value><CR><LF>
Set unit
Read unit
a – sensor address
<value> – +0: °C
+1: °F
+2: K
Factory setting: °C or °F
1)
▶
Set/read the unit of measured discharge values
aXSD<value>!
aXSD! a<value><CR><LF>
a<value><CR><LF>
Set unit
Read unit
a – sensor address
<value> – +0: m 3 /s
+1: l 3 /s
+2: ft 3 /s
Factory setting: m
3 /s or ft 3 /s 1)
▶
Store sensor orientation during installation 2)
aXXO!
3)
atttn<CR><LF>
Store sensor orientation
Description of response: see command
aM!
With this command you can determine and store the sensor
orientation during installation. In case of an error, the stored
value can be checked against the current sensor orientation.
(command
aV!
)
Note
This command starts a subsequent measurement with the set
averaging time.
1)
depending on the ordered variant code
2)
intended change of sensor orientation (e.g. new installation): ➝ first reset pressure probe to factory setting with command
aXSF!
3) aXX O !
➝
Character "O”
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