A&D RA3100 Omniace, Инструкция по эксплуатации

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8.Setup Details - 8.1.Recording Setup
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Disp. pos.: Displays the display position set in the channel settings. Tap to change the display position.
Disp. range: Displays the display range set in the channel settings. Tap to change the display range.
Disp. max: Displays the display maximum set in the channel settings. Tap to change the display
maximum.
Disp. min: Displays the display minimum set in the channel settings. Tap to change the display minimum.
Conversion (Physical Quantity Conversion)
The items in the list are indicated below.
Batch: Enables the batch configuration of the selected channels.
You can tap Select all on the top right to select all the channels.
Conversion method: Select [Gain], [2-pt.], or [None] as the conversion method.
Gain: Applies gain and offset to the input voltage and performs conversion with the primary
function y = ax + b.
Conversion1 is gain, Conversion2 is offset
2-pt.: Converts two input voltages to two target physical quantities.
Conversion1 is the first physical conversion value, and Conversion2 is the second
physical conversion value
For example, when converting the voltage of a signal input at 4- 20 mA with 1 kΩ
shunt resistance, the setting for resisting the input voltage value at ±1 V is
Conversion1 = 20 → +1, Conversion2 = 4 → -1.
None: Do not perform physical quantity conversion.
Relationship between 2-pt gain and gain compensation
The relationship between the gain specified by the 2
points a1 (x1, y1) and a2 (x2, y2) and gain a and offset b
of y = ax + b is
gain a = (y2 - y1)/(x2 - x1)
offset b = y1 - ax1 = y1 - x1(y2 - y1)/(x2 - x1)
Physical quantity y = ax+b
y2 a2
y1 a1
b a
x1 x2Input value
Unit: Sets the unit for the output of the physical quantity conversion. Tap to display the unit table and
select the target unit. If the target unit is not in the table, tap the Unit list key and change the
unit table.