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 PULSE/FREQUENCY OUTPUT (1...2) CONFIGURATION (FREQUENCY)<br />
VALUE F HIGH<br />
(continued)<br />
Parameter setting example 1:<br />
1. VALUE F LOW (4204) = not equal to zero flow (e.g. –5 kg/h)<br />
VALUE F HIGH (4205) = not equal to zero flow (e.g. 10 kg/h) or<br />
2. VALUE F LOW (4204) = not equal to zero flow (e.g. 100 kg/h)<br />
VALUE F HIGH (4205) = not equal to zero flow (e.g. –40 kg/h)<br />
and<br />
MEASURING MODE (4004) = STANDARD<br />
When you enter the values for VALUE F LOW and VALUE F HIGH the working range <strong>of</strong><br />
the measuring device is defined. If the effective flow drops below or exceeds this working<br />
range (see Fig. m), a fault/notice message is generated (#355-358, frequency area) and<br />
the frequency output responds in accordance with the parameters set in the function<br />
FAILSAFE MODE (4209).<br />
Hz<br />
Hz<br />
125 125<br />
0 0<br />
3 3<br />
m/h m/h<br />
-5 0 10 -40 0 100<br />
➀ ➀ ➀ ➀<br />
A0001276<br />
Parameter setting example 2:<br />
1. VALUE F LOW (4204) = not equal to zero flow (e.g. 0 kg/h)<br />
VALUE F HIGH (4205) = not equal to zero flow (e.g. 10 kg/h) or<br />
2. VALUE F LOW (4204) = not equal to zero flow (e.g. 100 kg/h)<br />
VALUE F HIGH (4205) = not equal to zero flow (e.g. 0 kg/h)<br />
and<br />
MEASURING MODE (4004) = STANDARD<br />
When you enter the values for VALUE F LOW and VALUE F HIGH the working range <strong>of</strong><br />
the measuring device is defined. In doing so, one <strong>of</strong> the two values is configured as zero<br />
flow (e.g. 0 kg/h).<br />
If the effective flow drops below or exceeds the value configured as the zero flow, no<br />
fault/notice message is generated and the frequency output retains its value.<br />
If the effective flow drops below or exceeds the other value, a fault/notice message is<br />
generated (#355-358, frequency area) and the frequency output responds in accordance<br />
with the parameters set in the function FAILSAFE MODE (4209).<br />
Hz<br />
Hz<br />
125<br />
0 125 0<br />
3 3<br />
m /h m /h<br />
0 10 0 100<br />
➀<br />
➀<br />
A0001277<br />
Deliberately only one flow direction is output with this setting and flow values in the<br />
other flow direction are suppressed.<br />
Parameter setting example 3:<br />
MEASURING MODE (4206) = SYMMETRY<br />
The frequency output signal is independent <strong>of</strong> the direction <strong>of</strong> flow (absolute amount <strong>of</strong><br />
the measured variable). The VALUE F LOW m and VALUE F HIGH n must have the<br />
same sign (+ or -). The “VALUE F HIGH” o (e.g. backflow) corresponds to the mirrored<br />
VALUE F HIGH n (e.g. flow).<br />
Hz<br />
125<br />
➂<br />
0<br />
➀<br />
➁<br />
Q<br />
A0001278<br />
ASSIGN RELAY (4700) = FLOW DIRECTION<br />
With this setting e.g. the flow direction output via a switching contact can be made.<br />
Parameter setting example 4:<br />
MEASURING MODE (4004) = PULSATING FLOWpage 68 ff.<br />
Page 78 • MN0M023<br />
Issue/Rev. 0.2 (12/12)
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