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Optical Level Sensor Application Notes

Click on a diagram to enlarge.

ITEM= -005
N & P-Channel Open Drain Push-Pull Output
To rest of LL Sensor circuit

Additional reverse protection diode recommended when switching larger relays or inductive
loads to protect the sensor from spikes!

Push - Pull High in Air - Equivalent Circuit

Push - Pull Low in Air - Equivalent Circuit

Application Notes

Sensor Cleaning and Compatibility

Clean with alcohol or Freon based solvents. DO NOT use chlorinated solvents such as tricholorethane which can affect the sensor surface. Check chemical compatibility chart before fluid installation.

POLYSULPHONE

The list below may be used as a guide and gives common industrial fluids that are typically compatible with polysulphone. We recommend that before use you should test that the fluid you wish to use this device in is compatible with polysulphone.

Acetic acid - Glacial
Acetic acid - 10%
Ammonia - 88
Ammonium Hydroxide - 10%
Ammonium Chloride - 10%
Aviation spirit
Benzene
Benzoic acid
Bleach
Brine
Butane
Calcium Nitrate
Calcium Hyphochlorite
Carbon Tetrachloride
Chromic acid
Copper Sulphate
Creosote
Cyclohexane
Cyclohexanol
Detergent solutions
Diesel fuel
Diethylamine
Diethyl Ether
Dioctyl Phthalate
Edible fats & oils
Ethanol 50%
Ethyl Alcohol
Ethylene Glycol
Ferric Chloride
Formaldehyde
Formic acid
Glycerol
Heptane
Hydrochloric acid 10%
Hydrogen Peroxide
lsopropanol
Iso-Octane
Kerosene
Linseed oil
Magnesium Sulphate
Methanol
Motor oil
Nitric acid 10%
Oils - Vegetable
Oxalic acid
Petroleum Ether
Potassium Hydroxide 10%
Potassium Hydroxide 50%
Silicone fluids
Silver Nitrate
Soap solution
Sodium Chloride
Sodium Hydroxide 10%
Sodium Hydroxide 50%
Sulphuric acid 10%
Transformer oil
Turpentine
Varnish
Water
White Spirit

TROGAMID

The list below may be used as a guide and gives common industrial fluids that are typically compatible with trogamid. We recommend that before use you should test that the fluid you wish to use this device in is compatible with trogamid.

Acetone
Benzene
Break Free (lubricating oil)
Carbon tetrachloride
Diesel fuel
Econa PG32 (Hydraulic fluid)
Ethanol
Ethyl acetate
Eucalyptus oil
Formaldehyde solution
Glycerine (DAB6)
Heating oil
lsopropanol
Methanol
Mountain pine oil
Petroleum ether
Potassium hydroxide (25 w/w-%)
Potassium hydroxide (50 w/w-%)
Premium gasoline
1,2-propane dial
Regular gas
Test fuel (M15)