Chapter 6 Function Description; Measurement (K3Ma-J) - Omron K3MA-J User Manual

CHAPTER 6 FUNCTION DESCRIPTION

6-1 Measurement
Voltage/Current Input
Scaling
6-2
(K3MA-J)
K3MA-J operates as a Process meter.
Measurements are made as follows.
• Input signals are sampled in synchronization with internal timings generated at
intervals of 250 ms.
• The input signal is scaled and the process value is updated according to the scal-
ing result. The updated process value is displayed on the main indicator.
• Comparative output is provided based on the process value.
• The process value and comparative output are updated per sampling.
Scaling is to convert sampled input values to process values in sequence using a
predetermined scaling formula.
Scaling allows conversion of input values to process values in easy-to-understand
notation.
The scaling formula for voltage and current input is as follows.
Where;
INP1: Input value corresponding to process value DSP1
DSP1: Process value corresponding to input value INP1
INP2: Input value corresponding to process value DSP2
DSP2: Process value corresponding to input value INP2
inp: Input value sampled