West Control Solutions ProVU 4 - Manual (Page 50)

ProVU4 Controller, Profiler & Recorder/Controller - Product Manual
59407, Issue 1 – March 2008 Configuration & Use Page 49
Input Configuration Sub-Menu
Table 9. Input Configuration Sub-Menu Screens
Input Configuration:
Process Variable Input
Type w From Thermocouple, RTD and Linear inputs. - see specifications
section for full details of input types available.
Engineering Units w Select display units from: °C; °F; °K; bar; %; %RH; pH; psi or none.
Decimal Point Position w Sets the maximum display resolution to 0; 1; 2 or 3 decimal places.
Temperature inputs are limited to 0 or 1 place. Numbers >99.999
never display more than 2 dec places, >999.99 never display more
than 1 dec place and >999.99 always display without decimal places.
Multi-Point Scaling
Enable Enables or disables Linear Input Multi-Point Scaling. This feature
allows up to 15 point linearization of mA or V DC input signals.
Scale Range Lower
Limit w
Multi-Point Scale
Point(s)
Scale Range Upper
Limit w
For Temperature inputs, Upper & Lower Limits set the usable span.
Min = 100 units, max = range limits - see specs. For Linear inputs,
Upper & Lower Limits define the values shown (-1999 to 9999) when
input is at minimum and maximum values. Min span = 100 units. If
Multi-Point Scaling enabled, up to 15 breakpoints* can scale input vs.
displayed value between the linear input scale limits.
*A breakpoint set at 100% input ends the sequence.
CJC Enable/Disable Enables/disables internal Thermocouple Cold Junction
Compensation. The default value is Enabled.
Process Variable Offset Trims the process value. +Ve values add to, –Ve values subtract
from measured input.
Caution: A value other than zero alters the
apparent calibration of the instrument. Use with care!
Input Filter Time Removes unwanted signal noise. Adjustable from 0.0 to 100.0
seconds or OFF (default = 2s).
Caution: Too large a value will cause
slow response to changes in the process. Use with care!
Auxiliary Input n Type w Sets the type of signal to be connected to the auxiliary inputs (if
fitted). From: 0-10V; 2-10V; 0-5V; 1-5V, 0-20mA or 4-20mA DC.
Auxiliary input B also supports >2K Potentiometer and 0-100mV.
Auxiliary Input n Scaling
Lower Limit w Scales the displayed a value (-9999 to 10000) when an auxiliary
input is at or below it’s lower limit (e.g. 4mA for a 4-20mA signal).
Auxiliary Input n Scaling
Upper Limit w Scales the displayed a value (-9999 to 10000) when an auxiliary
input is at or above it’s lower limit (e.g. 20mA for a 4-20mA signal).
Auxiliary Input n Offset Trims the displayed a value for auxiliary input A or B. +Ve values are
added to, –Ve values subtracted from the measured auxiliary input.
Calibration Reminder
Enable/Disable Enables or disables the display of Calibration Reminder at start-up
(repeated daily thereafter), if the due date has passed – Available on
the Recorder version only
Calibration Reminder
Due Date Sets the due date for the Calibration Reminder - Available on the
Recorder version only