Treadmill User Manual

Page 92 SITRANS LC 500 – INSTRUCTION MANUAL 7ML19985GE01
mmmmm
Appendix E
After calibration:
12.7 pF ≅ 0% ≅ 4 mA or 20 mA
25.4 pF ≅ 100% ≅ 20 mA or 4 mA
Larger tank, dimensions in feet:
For this slightly larger tank, the capacitance
ranges from 16.6 pF for 0% (probe in air) to 33.2 pF
for 100% (tank filled with oil).
After calibration:
16.6 pF ≅ 0% ≅ 4 mA or 20 mA
33.2 pF ≅ 100% ≅ 20 mA or 4 mA
C
air
ε
air
7.32 4.5×
Log 60 0.63⁄()
-----------------------------------
pF 16.6pF==
C
oil
ε
oil
7.32 4.5×
Log 60 0.63⁄()
-----------------------------------
pF 33.2pF==
SITRANS LC
500
6” (0.5ft)
L = 54”
(4.5ft)
60”
(5.0ft)
d = 0.63”