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Level Sensor0 pages
Level Switches
For WebMaster® & WebAlert®
Walchem’s polypropylene tank level switches have excellent
chemical resistance and work well in chemicals that are clean and
non-coating or scaling. The reed switch output provides a reliable input to
our WebMaster® controllers and WebAlert™ monitors.
These level switches come complete with support pipe of various lengths, 2” NPT drum
mounting fitting and height adjustment gland.
The level switch is placed in the tank, with the switch positioned near the bottom of
the tank. The specific gravity of the chemical raises the float, activating the switch.
When the tank is empty, the float drops and the switch is deactivated.
Specifications
MATERIALS
Polypropylene
DIMENSIONS
0.8” 20 mm diameter
ACCURACY
±5 mm in water
MOUNTING FITTING
2” NPTM
REPEATABILITY
±2 mm in water
CABLE
22 AWG, 2 conductor
EXTREME ORIENTATION ±20° from vertical
TEMPERATURE
-40 to 194°F (-40 to 90°C)
SPECIFIC GRAVITY
0.8 to 1.2
PRESSURE
REED TYPE
Dry contact SPST
25 psi ( 2 bar) @ 25°C
Derated at 1.667 psi
(0.113 bar) per °C above
25°C
REED RATING
120 VAC, 102 VDC at 50 VA
REED OUTPUT
Normally Open
"
