Proline Promass 83E/F/O Description of Device Functions - FMC ...
Proline Promass 83E/F/O Description of Device Functions - FMC ...
Proline Promass 83E/F/O Description of Device Functions - FMC ...
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7 Block OUTPUTS <strong>Device</strong> <strong>Functions</strong> <strong>Proline</strong> <strong>Promass</strong> 83<br />
Function description<br />
OUTPUTS CURRENT OUTPUT (1...3) CONFIGURATION<br />
Detailed explanations and<br />
information<br />
(continued)<br />
2. Defined measuring range (m–n): m and n have different signs<br />
➀<br />
20<br />
mA<br />
4<br />
0 0<br />
➁<br />
Q<br />
Flow a (—) outside, b (- -) within the measuring range.<br />
A0001272<br />
➁<br />
Q<br />
0 + +<br />
➀<br />
a<br />
b<br />
t<br />
A0001273<br />
• STANDARD<br />
a (—): The flow components outside the scaled measuring range cannot be taken into<br />
account for signal output.<br />
A fault message is generated (# 351...354, current range) and the current output<br />
responds in accordance with the parameter settings in the function FAILSAFE MODE<br />
(4006).<br />
b (): The current output signal is proportional to the measured variable assigned.<br />
mA<br />
t<br />
A0001274<br />
• SYMMETRY<br />
This option is not available under these circumstances, because the 0_4 mA value and<br />
the 20 mA value have different signs.<br />
• PULSATING FLOW<br />
Flow components outside the measuring range are buffered, balanced and output after<br />
a maximum delay <strong>of</strong> 60 seconds.<br />
mA<br />
A<br />
S<br />
S=A<br />
t<br />
A0001275<br />
TIME CONSTANT<br />
(4005)<br />
Use this function to enter a time constant defining how the current output signal reacts to<br />
severely fluctuating measured variables, either very quickly (enter a low time constant) or<br />
with damping (enter a high time constant).<br />
User input:<br />
fixed-point number 0.01...100.00 s<br />
Factory setting:<br />
1.00 s<br />
Page 70 • MN0M023<br />
Issue/Rev. 0.2 (12/12)