User manual - METER SRP-147-XC
8.
THE ALARM LED
The
ALARM LED
(
AL
) is turned on when input signal is out of the permissible input
range. See parameters:
“tyPE”
and
“Hi r”
in paragraph
„InPt” menu
.
9.
DISPLAYED VALUES CALCULATION
The first step to compute the result of measure is the calculation of the normalized result
(it means result of 0-1 range). To do it, the begin of the input range (0 mV) must be subtracted
from measured value. Next, received result must be divided by the width of the input range ( it
means 100 for 0-100mV range). So normalized result can be expressed by expression:
U
n
=
U
inp.
100
for
0
÷
100
mV
range
where U
inp.
Means input voltage (in mV), and U
n
- normalized result.
If measured value exceeds the nominal input range (60mV, 75mV, 100mV or
150mV), and do not exceed the permissible input range, then received normalized
U
n
result will exceed 0-1 range, e.g. input range 0-100 mV, input voltage = 1 mV –
the normalized result is equal -0,01, and for input voltage = 110 mV, the normalized
result is equal 1,1. In such cases presented expressions are still correct.
9.1.
ADDITIONAL CALCULATIONS (USED CONVERSION CHARACTERISTIC)
The manner of the additional computation of the displayed result depends on selected
conversion characteristic. All presented charts are connected with the input range 0 - 100 mV.
34
i
Summary of Contents for SRP-147-XC
Page 50: ...User manual METER SRP 147 XC 50 ...
