YSI DIQ/S 182 XT-4-MOD User Manual
Page 103
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System 182 XT-4
Relay outputs
6 - 13
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02/2012
Negative characteristic
curve
The proportional output range begins below the initial value. If the
proportional range is undercut or exceeded, the selected behavior
comes into force.
Fig. 6-10 Pulse width output
Fig. 6-11 Frequency output
1
Start value
Measured value with a minimum pulse width or switching
frequency
2
End value
Measured value with a maximum pulse width or switching
frequency
0
50
100
Measured value
Proportional
band
1
50 % of maximum
switching frequency
Maximum
switching frequency
Time
2
Switching frequency f [1/min]
Minumum
switching frequency
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