Process Unit 73 LF - Knick
Process Unit 73 LF - Knick
Process Unit 73 LF - Knick
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<strong>Process</strong> <strong>Unit</strong> <strong>73</strong> <strong>LF</strong><br />
Display<br />
Display options<br />
Output 1*)<br />
Output 2*)<br />
Beginning/End of scale*)<br />
Spans<br />
Accuracy<br />
Current source function<br />
Power output<br />
Switching contacts *)<br />
Contact rating<br />
NAMUR contacts 2)<br />
Limit/controller contacts<br />
(Digital controller option 353)<br />
Cleaning contacts<br />
(Option 352)<br />
Graphic LCD, 240 x 64 pixels with CFL 1) backlighting<br />
Main display<br />
character height approx. 20 mm<br />
Secondary display character height approx. 6 mm<br />
Dialog display<br />
7 lines, character height approx. 4 mm<br />
Main display<br />
Secondary display<br />
conductivity conductivity [S/cm]<br />
resistivity resistivity [cm]<br />
concentration concentration [% by wt.]<br />
temperature temperature [C]<br />
time time [h,min]<br />
date<br />
[d,m,y]<br />
current output 1 [mA]<br />
current output 2 [mA]<br />
current input [%]<br />
controller output [%]<br />
controller setpoint<br />
man. temperature [°C]<br />
0 to 20 mA or 4 to 20 mA, max. 10 V, floating<br />
user-defined for conductivity, concentration, resistivity, C<br />
current characteristic user-defined: linear, bilinear, trilinear,<br />
function<br />
error message if load is exceeded<br />
0 to 20 mA or 4 to 20 mA, max. 10 V, floating<br />
user-defined for conductivity, concentration, resistivity, C<br />
optionally as analog controller output (option 483)<br />
current characteristic user-defined: linear, bilinear, trilinear,<br />
function<br />
error message if load is exceeded<br />
Anywhere within measurement range<br />
Conductivity<br />
≥ 0.20 S/cm, at least 20 % full scale<br />
Resistivity<br />
100 ⋅cm, at least 20 % full scale<br />
Concentration 1.00 to 200.0 %<br />
Temperature<br />
10.0 to 300.0 C<br />
< 0.25 % of meas. value + 20 A<br />
0.00 mA to 20.50 mA<br />
24 Vdc / 30 mA, floating, short-circuit-proof<br />
typical applications: loop current for universal input,<br />
signal current for switching outputs<br />
8 switching contacts, floating,<br />
overvoltage category II up to 250 V<br />
ac < 250 V/5 A < 1,250 VA resistive<br />
dc < 120 V/5 A