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These commands can be interpreted by any device belonging to any manufacturer.
The commands below can only be interpreted by NIVELCO products:
NIV128: device specific command optimalized for DIST, LEV, VOL measurements
NIV129: device specific command optimalized for DIST, LEV, FLOW, TOT1, TOT2 measurements
The table below shows the contents of the responses of NIVELCO-manufactured devices to given commands:
COM3: 03 Universal HART command
EchoTREK 4-wire. EchoTREK 2-wire. NIVOTRACK NIVOCAP
EasyTREK EasyTREK
P01 PV SV TV QV PV SV TV QV PV SV TV QV PV SV TV QV
0 DIST LEV DIST Temp DIST Temp - - DIST Temp - - % - - -
1 LEV LEV DIST Temp LEV DIST Temp - LEV DIST Temp - LEV % - -
2 LE% LEV DIST Temp LE% LEV DIST Temp LE% LEV DIST Temp LE% LEV % -
3 VOL LEV DIST Temp VOL LEV DIST Temp VOL LEV DIST Temp VOL LEV % -
4 VO% LEV DIST Temp VO% LEV DIST Temp VO% LEV DIST Temp VO% LEV % -
5 FLO LEV DIST Temp FLO LEV DIST Temp - - - - - - - -
NIVOPRESS UNICONT THERMOCONT
P10 PV SV TV QV PV SV TV QV PV SV TV QV
0 P* - - - Prog** I
in
- - Temp - - -
1 P* - - - Prog** I
in
- - Temp - - -
2 LEV P* - - Prog** I
in
- - - - - -
3 LEV P* - - Prog** I
in
- - - - - -
* P: pressure
** Prog: the value calculated by the device from the input current ( I
in
).
During configuration, it is necessary to set the value ( e.g. 4 mA = 0 m
3
, 20mA = 125 m
3
) corresponding to the incoming 4…20mA ( I
in
)
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