ma calculation formula – inLiteTech https://inlitetech.com Your Tech support & Navigator Mon, 12 Jul 2021 15:35:59 +0000 en-US hourly 1 https://wordpress.org/?v=6.7.2 https://inlitetech.com/wp-content/uploads/2021/06/cropped-cropped-3f2682645d8e490195ae7306fbc0f5cc-2-32x32.png ma calculation formula – inLiteTech https://inlitetech.com 32 32 Calculate mA from PV, LRV and URV. https://inlitetech.com/calculate-ma/ https://inlitetech.com/calculate-ma/#respond Sun, 27 Jun 2021 10:31:28 +0000 https://inlitetech.com/?p=242 The formula for calculating equivalent current (ma) from known process variable (PV), Lower range value (LRV) and Upper range value (URV).

The formula is:
4-20mA Current to PV Calculation

SPAN = URV – LRV

Where

PV          =  Process Variable
LRV       =  Low Range Value
URV      = Upper Range Value
mA        = milli ampere

Consider left side of formula for Process variable, LRV of transmitter lower range, Span is the difference between LRV & URV of transmitter ranges.

Consider right side of formula for current (ma), LRV of standard current range .i.e is 4ma,

Span is the difference between LRV (4ma) & URV (20ma) of standard current range

.i.e. 20 – 4 = 16, Using this formula we can calculate mA from pv and as well as pv from mA.

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