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SV
Acronym for Set Value, i.e., the value that
the process variable (temperature, valve
opening, etc.) has to reach and maintain.
Thermocouple Sensor that transmits an electrical signal of
a few millivolts. Cannot be tested for galva-
nic continuity. It needs specially designed
extension cable.
Undershoot
Situation in which PV does not reach SV
because the control action stopped too
soon. The ON OFF controls have an under-
shoot greater than the PID controls.
Disclaimer
Although all of the information in this manual has been ca-
refully checked, Gefran S.p.A. assumes no liability regarding
the presence of any errors or regarding damage to property
and/or harm to individuals due to any improper use of this
manual.
Gefran S.p.A. also reserves the right to change the contents
and form of this manual, as well as the characteristics of the
devices described herein, at any time and without notice
Copyright
This manual and its attachments may be freely reproduced
provided its contents are not changed in any way and provi-
ded every copy includes the above Disclaimer and the state-
ment of ownership of Gefran S.p.A..
80209C_MHW_850-1650-1850_20-2020_ENG_pag. 9
Controll
Output that controls the process and is
output
switched on and off as needed.
The technical data and performance levels specified in this
manual are to be considered a guide for the user in order to
determine the device's suitability for a defined use, and do
not constitute a guarantee. They may be the result of test
conditions at Gefran S.p.A., and the user must compare
them to his/her real application requirements.
Under no circumstances will Gefran S.p.A. be liable for any
damage to property and/or harm to individuals due to tam-
pering, incorrect or improper use, or use not conforming to
the characteristics of the controller and to the instructions
contained in this manual.
Gefran and GF_eXpress are registered trademarks of Gefran
S.p.A.
This manual may make reference to or reproduce trademarks
and logos of third parties. Gefran S.p.A. acknowledges such
parties' ownership of these trademarks and logos.
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