OTT PLS 500, Руководство по эксплуатации

Страница: 20 / 56

Measured value overview standard commands 1)
metric units imperial units
▶
Send data (
D0
) after
aM!
command
<value1>
level/pressure
pbbb.eee
[m]
pbbb.eee
[ft]
<value2>
water temperature
pbb.ee
[°C]
pbbb.ee
[°F]
<value3> device status see below
<value4> discharge 2) pbbb.eee [m 3 /s] pbbbbb.eee [ft 3 /s]
▶
Send data ( D0 , D1 , D2 ) after aM1! command
<value1> last single measured value "level/pressure" pbbb.eee [m] pbbb.eee [ft]
within the averaging time
<value2> water temperature pbb.ee [°C] pbbb.ee [°F]
<value3> mean of measured values "level/pressure" pbbb.eee [m] pbbb.eee [ft]
within the averaging time
<value4>
minimum of measured values "level/pressure"
pbbb.eee
[m]
pbbb.eee
[ft]
within the averaging time
<value5>
maximum of measured values"level/pressure"
pbbb.eee
[m]
pbbb.eee
[ft]
within the averaging time
<value6>
median of measured values "level/pressure"
pbbb.eee
[m]
pbbb.eee
[ft]
within the averaging time
<value7>
standard deviation of measured values
pbbb.eee
[m]
pbbb.eee
[ft]
"level/pressure" within the averaging time
<value8>
device status; see below
▶
Send data (
D0
,
D1
,
D2
) after
aM2!
command
<value1> – relative humidity in the probe housing pbb.ee [
% rH
] pbb.ee [
% rH
]
<value2> – dew point in the probe housing pbb.ee [°C] pbb.ee [°C]
<value3> – current sensor orientation pbbb [°] pbbb [°]
<value4> – stored sensor orientation during installation pbbb [°] pbbb [°]
<value5> – temperature value of pressure sensor pbb.ee [°C] pbb.ee [°C]
<value6> – temperature of internal humidity sensor pbb.ee [°C] pbb.ee [°C]
<value7>
– pressure value of pressure sensor
pbbbb.ee
[mbar]
pbbbb.ee
[mbar]
<value8>
– standard deviation of pressure value of pressure sensor
pbbbb.ee
[mbar]
pbbbb.ee
[mbar]
<value9>
– device status; see below
▶
Device status
3)
+0
➝
no error occured
+1
➝
system reset – status flag is set when connecting the operating voltage/upon unexpected reset;
deletion after status read out
+2
➝
raw value "pressure" outside the calibrated range
(1 % tolerance of full scale is considered)
+4
➝
raw value "temperature" outside the calibrated range
+8
➝
sensor orientation change (deviation since installation currently ≥ 5°) 4)
+16
➝
overload pressure sensor (≥ +20 % of measuring range + offset)
+32
➝
pressure probe was reset to factory settings due to internal system error
(including potential flow settings)
+64
➝
internal relative humidity was/is above limit (≥ 25 % rH) 5)
1) with factory setting
2)
optional with activated discharge measurement; extended command
aXDC<value>!
3)
if several errors/events occur at the same time, the OTT PLS 500 adds up the status values. Example: +20
➝
overload pressure sensor ( +16 ) + raw
value "temperature" outside the calibrated range ( +4 ); values ≥ +128 : exclusively for internal service purposes
4) change sensor orientation intended (e.g. new installation):
➝
first reset pressure probe to factory setting with command aXSF!
5) see also "Please note: …" in Chapter 9
20