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73VR2102 / 73VR2104 / 73VR2106 / 73VR2108 / 73VR2110 / 73VR2112 USERS MANUAL EM-7395-B Rev.24
8.2.7 F VALUE CALCULATION
F value calculation
Specify measured data or function data (X1), with Reset condition.
The measured (function) data is accumulated until it is reset when the reset condition is true or when Start key is
touched. In order to reset the hold function, ‘Time’ or ‘Trigger input’ can be specified.
Reset
Time
Analog input
Up, Down, ON, OFF.
Value < Threshold, Value ≤ Threshold
At the timing of resetting, both the totalized count up to 00 second and ‘0’ could exist at once. The 73VR21x stores
the totalized count at 00 second and a new count at 01 second after the resetting at 00 second.
If the reset condition remains true for more than a moment, the function data remains 0.
Equation:
∑10
(X1 – T0) / Z
ST/60
where X1: Measured temperature (°C)
T0: Reference temperature (°C)
Z:
Z
value
ST: Storing interval (seconds)
If the result of the equation is out of the range: 0 to 1.0
×
10
10
, it is given as an error.
8.2.8 ANEMOSCOPE
Specify measured data or function data (X1).
Direction corresponding to measured data is displayed in the display view shown below.
1. Digital display of Trend view
2. Overview
Relation between input and direction
Input
Display
When input is fractional value, closest direction is displayed.
Example: 1.5 ≤ X1 < 2.5
→
NE
In the Retrieve view, input value is displayed, not direction.
Recorded data is input value, not direction. Display in the 73VR Data Viewer
(73VRWV) and converted CSV data is not direction.
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-3
WNW
-2
NW
-1
NNW
0
N
1
NNE
2
NE
3
ENE
4
E
5
ESE
6
SE
7
SSE
8
S
9
SSW
10
SW
11
WSW
12
W
13
WNW
14
NW
15
NNW
16
N
17
NNE
18
NE
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