-23-
No.LV50***-OMQ0004-B
■
Applicable Fluids
Applicable fluid list
Substance description
Result
Remarks
Water
○
Conductivity of tap water: 100 to
200
μ
S/cm
Deionized water
X
The electric conductivity is too low.
Water base coolant
○
When the ratio of water is 50% or
more.
Oil
X
The electric conductivity is too low.
Oil base coolant
X
The electric conductivity is too low.
Sea water
X
Corrosive to the sensor electrodes
GALDEN
®
X
The electric conductivity is too low.
Fluorinert
TM
X
The electric conductivity is too low.
*: The applicable fluid list should be used as a guide.
1- Operate fluids with electric conductivity of 5
μ
S/cm or more.
Note that this product can not be used for fluids with low conductivity.
This product cannot be used for fluids that do not conduct electricity such as De-ionized water and oil.
The electric conductivity is a ratio which shows how easily the electricity flows.
2- If insulating material gets stuck inside of the piping, it may cause an error.
Remove the foreign material stuck inside of the piping with a brush for washing test tubes so that internal rubber piping
will not be damaged.
3- If conductive materials such as metal get stuck to the interior surface in the piping, the switch may
malfunction.
Remove the foreign material as mentioned above.
4- If stray electrical currents are flowing through the fluid to be measured, the switch may malfunction.
Beware that electrical leakage currents may be generated by equipment around the flow sensor such as pumps, valves
and metal piping when this equipment is at different electrical potentials in relation to earth ground.
Cable with M12 connector lead wire (LFE-1-A3)
Item
Specifications
Nominal cross
section
AWG21
Conductor
O.D.
approx. 0.9 mm
Material
Non-lead heat resistant PVC
O.D.
approx. 1.7 mm
Insulator
Colours
Brown, White, Black, Blue
Sheath
Material
Lead free heat resistant PVC
Finished O.D.
Φ
6
