5
Appendix A: Operation Terms and Principles
P
(band)
Pb
“P” (band) is the proportion term – the primary term for controlling the error, or deviation
from the temperature set point. This setting directly scales the error, so with a small “P”
the controller will make small attempts to minimize the error, and with a large “P” the
controller will make larger attempts. If “P” is too small the error may never be minimized,
and the unit may not be able to respond to changes affecting the zone. If “P” is too large,
unstable oscillations can occur, resulting in a severe overshoot of the desired temperature.
I
(rate)
Ir
“I” (rate) is the integral term that allows the controller to handle errors that accumulate
over time. This works well for handling steady state errors. If ” I” is too high there can be
instability in response to short term changes.
D
(time)
dt
“D” (time) is the derivative term, concerned with how the system is responding between
intervals. This helps dampen the system, improving stability.
The autotune feature has 3 options: OFF, FAST, and FULL. If the OFF option is selected the
P, I, and D values may be set manually. Consult the factory for more information.
Appendix B: Certifications
The Novus Temperature Controller model N1030-PR has been tested to the following
standards by CBCRE-accredited testing laboratory IBEC (Brazil), per per test report # IBED
194968 – Rev. 1.0. Phone: (+55 19)3845-5965
• IEC/CISPR 11 Ed. 6.0 (2015) + A1 (2016) for Radiated and Conducted emission
• IEC/61000-4-4 Ed. 3.0 (2012) for Electrical and fast transients and burst (EFT&B)
• IEC/61000-4-6 Ed. 4.0 (2013) for Immunity to RF conducted disturbances
• IEC/61000-4-3 Ed. 3.0 (2006) + Amd.1 (2007) + Amd.2 (2010) for Immunity to RF radiated
disturbances
• IEC/61000-4-2 Ed. 2.0 (2008) for Electrostatic discharge (ESD)
• IEC/61000-4-5 Ed. 3.0 (2014) + Amd.1 (2017) for Surge
• IEC/61000-4-11 Ed. 2.0 (2004) (2004 + Amd.1 (2017) for Voltage dips/interruptions
The complete Valco Instruments Co. Inc. ITC2 assembly which includes the Novus Tem-
perature Controller model N1030-PR has been further tested to the following standard by
the A2LA- and ILAC MRA-accredited testing laboratory NCEE Labs (USA), per test report
# R20200629-30-S01. Phone: +1 (888) 657-6860
• EN 61010-1:2010 Safety requirements for electrical equipment for measurement, con-
trol, and laboratory use -- Part 1: General requirements
For product certification details, please contact Valco Instruments Co. Inc.
