HF170AEN_OS_v0501_04
Page 15
2 - HEIGHT
If desired the height of the level column can be calculated and displayed.
MEASUREMENT UNIT
21
SETUP 21 determines the measurement unit for height.
The following units can be selected:
mm - cm - m - mtr - inch - ft - mmwk - mmwc - cmwk - cmwc
mwk - mwc - inwc - ftwc - mbar - bar - psi - no unit.
Alteration of the measurement unit will have consequences for operator
and SETUP-level values.
Please note that the Span (23) has to be adapted as well; the calculation
is not done automatically.
DECIMALS
22
This setting determines for height the number of digits following the
decimal point. The following can be selected:
00000 - 1111.1 - 2222.22
SPAN
23
With the span, the sensor signal is converted to a height.
The
span for height
is determined on the basis of the
selected
measurement unit
at 20mA.
The more accurate the span, the more accurate the functioning of the
system will be :
Example
Calculating the span for height
Let us assume that the sensor generates 20mA at a level
of 2,481.3 cm, the selected unit is "cm".
The span is 2481.3
Enter for
SETUP
- 23: "2481.3".
DECIMALS SPAN
24
This setting determines the number of decimals for Span
(SETUP 13). The following can be selected:
0 - 1 - 2 - 3 - 4 - 5 - 6
OFFSET
25
Enter here the "not measured" height which is below the sensor, in case a
pressure transducer is used for example to measure the level.
Also, a negative offset can be entered: do press the middle and right
button simultaneously.