JUMO 202550 Operating Instructions Manual page 96

33 Glossary
Term
Bilinear
output
Break contact /
make contact
Code word
Derivative time
Dosing
monitoring
Drop-out delay
End of
transmission
range
94
Parameter Explanation
C311 This function has the effect that a small or large input signal
produces a disproportionate analog process value output
signal. The knee-point of the characteristic can be shifted along
the dotted 50% line. The factory setting of 50% produces a
straight-line characteristic.
C212 Break contact: As long as the switching condition is not
fulfilled, the corresponding output is active (closed).
Make contact: As long as the switching condition is fulfilled, the
corresponding output is active (closed).
CodE After the supply voltage has been applied, all levels are
protected against accidental or unauthorized editing. If
parameter settings have to be altered, the levels must be
unlocked by entering a code word. A code word is also required
to be able to calibrate the electrode.
It is not necessary to remove the protection against editing if
you just want the check the settings.
dt This determines the differential component of the controller
output signal. If the derivative time is set to "0", then the control
response has no differential component.
C213 Defines whether the output K1 and / or K2 is / are monitored by
the alarm contact (see also under "Alarm contact").
OFd The time required for the corresponding relay contact to return
to the inactive status when the switching condition is no longer
fulfilled. Brief excursions above or below the setpoint will be
ignored by the controller.
SiH This value is taken from the operating instructions for the
attached instrument.
Example for a JUMO 202630 (transmitter for free chlorine ->
transmission range = 0 — 2.0 mg/l):
SiH = 2.00