The paddle switch technology detects full, empty, or demand conditions on materials such as grain, feed, cement, plastic granulate, and wood chips.
The paddle switch can handle bulk densities as low as 15.06 g/l (0.94 lb/ft3) with the optional rectangular vane or 100 g/l (6.25 lb/ft3) with the standard measuring vane.
A low revolution geared motor with slip clutch drives a rotating measuring vane which senses the presence
of material at the mounted level of the LPS200. As material comes into contact with the rotating paddle, rotation stops, which changes the microswitch state.
When the paddle is no longer covered by material, rotation resumes and the relay reverts to its normal condition.
The LPS200 has a rugged design for use in harsh conditions in the solids industry.
The sensitivity of the paddle can be adjusted for varying material properties like buildup on the vane.
The LPS200 comes in a variety of configurations including compact, extended and cable extension.
It is equipped with a standard vane which is effective in most applications,
but can be configured with a hinged or rectangular vane for increased sensitivity for light materials.
Key Applications: bulk solids such as grain, feed, cement, plastic granulate, wood chips
Mode of operation
Rotating point level switch
High and low and demand
Microswitch 5 A at 250 V AC, non-inductive
Microswitch SPDT contact 4 A at 30 V DC, non-inductive
Standard (1 rpm model): approx. 1.3 seconds
Optional process applications (5 rpm model): approx. 0.26 seconds
Adjustable via reset force of spring or geometry of measuring vane
Rated operating conditions
-25 ... +60 °C (-13 ... +140 °F)
-25 ... +80 °C (-13 ... +176 °F)
-25 ... +600 °C (-13 ... +1 112 °F)
Higher temperature version is available. Consult a local sales person for details.
Max. 0.5 bar g (7.25 psi g)
Max. 10 bar g (145 psi g)
Can detect down to 100 g/l (6.25 lb/ft3)
Can detect down to 15.06 g/l (0.94 lb/ft3)
Epoxy coated aluminum
Stainless steel or aluminum
Thread NPT, BSP, and flange options
Degree of protection
IP65/Type 4/NEMA 4
2 x M20 x 1.5 or 2 x ½" NPT (For FM and CSA approved versions only)
AC or DC versions
115 V AC, ± 15 %, 50 ... 60 Hz, 4 VA
or 230 V AC, ± 15 %, 50 Hz, 6 VA,
or 48 V AC, or 24 V AC,
or 24 V DC, ± 15 %, 2.5 W
Universal voltage (DPDT replay)
24 V DC ± 15 % 50 ... 60 Hz, 22 ... 230 V AC, ± 10 %, max. 10 VA
Certificates and approvals