Michell Instruments Easidew PRO, User Manual

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I.S. Field Display User’s Manual
Michell Instruments 9
OPERATION
3.1.1 Summary of Confi guration Functions
This section summarizes each of the main configuration functions and includes a
cross reference to a more detailed description. Figure 7 illustrates the location of each
function within the Configuration Menu.
Display Summary of function
FunC
Indicator function
De fi nes the relationship between the 4-20 mA input current and the
I.S. Field Display. May be set to:
Std
Standard linear relationship
root
Square root extraction
Lin
16 segment adjustable lineariser
See Section 3.1.2.
rESn
Display resolution
De fi nes the resolution of the least signi fi cant display digit. May be set
to 1, 2, 3 or 10 digits. See Section 3.1.3.
dP
Decimal point
Positions a dummy decimal point between any of the digits or turns it
off. See Section 3.1.4.
CAL
Calibration of the digital display using an external current
source
Enables the zero and span of the I.S. Field Display to be adjusted
using an external current source such as a calibrator. When used with
an accurate traceable current source this is the preferred method of
calibration. See Section 3.1.5.
SEt
Calibration of display using internal references
Enables the zero and span of the I.S. Field Display to be adjusted
without the need for an accurate input current or disconnection from
the 4-20 mA loop. See Section 3.1.6.