Data Sheet

ManualsBrandsHoneywell AIDC ManualsFlow Meters, Fluid Level GaugesHoneywell AIDC LLE102101 Liquid Level Sensor

LLE Series

DESCRIPTION

The enhanced series of liquid level sensors incorporates a

photo-transistor trigger which provides a digital output that

denotes the presence or absence of liquid.

The mode of operation is derived from the principle of total

internal reflection. An LED and photo-transistor are housed

within a plastic dome at the head of the device. When no

liquid is present, light from the LED is internally reflected from

the dome to the photo-transistor. When liquid covers the

dome, the effective refractive index at the dome-liquid

boundary changes, allowing some light from the LED to

escape. Thus the amount of light received by the photo-

transistor is reduced and the output switches, indicating the

presence of liquid. This method of liquid level sensing is very

fast, and almost instantaneous for water.

FEATURES

• Solid state technology

• Small size

• Digital output

• Pre-wired

• Electrically robust

TYPICAL APPLICATIONS

• Home appliances

• Spa baths

• Vending machines

• Food and beverage

• Medical

• Compressors

• Machine tools

• Automotive

Liquid level sensors

BENEFITS

• Accurate, repeatable switching point

• Can be mounted in applications where space is limited

• Microprocessor compatible

• Easy to install, saving assembly time

• Reverse polarity, over voltage, short circuit and transient

protection

ORDER GUIDE

Catalogue Listing

Description Standard temperature High temperature

(Type 1) LLE101000 LLE101101

Screw In, M12 Thread, Plastic (Type 2) LLE102000 LLE102101

(Type 3) LLE103000 LLE103101

Push In, Plastic (Type 5) LLE105000 LLE105100

Screw In, ½ in, Metal Nickel plated brass LLE205000 LLE205100

Stainless steel LLE305000 LLE305100

Summary of content (4 pages)

PAGE 1
LLE Series Liquid level sensors DESCRIPTION The enhanced series of liquid level sensors incorporates a the dome to the photo-transistor. When liquid covers the photo-transistor trigger which provides a digital output that dome, the effective refractive index at the dome-liquid denotes the presence or absence of liquid. boundary changes, allowing some light from the LED to The mode of operation is derived from the principle of total internal reflection.
PAGE 2
LLE Series TECHNICAL INFORMATION Specifications Operation mode User defined single point on/off switch (Output is high in air) Repeatability (mm) ±1 Hysteresis (mm) 2 (dependent on liquid) Response time Rising liquid level - 50 µs Falling liquid level - 1 s max (in ethanol) Response in other liquids dependent on viscosity Mechanical Mounting Type 1 and 2 - mounted from outside; Type 3 and 5 - mounted from inside Termination 250 mm flying leads (180 mm for metal versions) Material [Note 1] Blue
PAGE 3
Liquid level sensors MOUNTING DRAWING (IN MM AND INCHES) LLE101000/LLE101101 (Type 1) LLE102000/LLE102101 (Type 2) 22,49 (0.89) "L" 19,40 (0.76) 12,45 (0.49) M12 x 1 - 8 g M12 x 1 - 8 g 19,00 (0.75) 12,40 (0.49) 10,25 (0.40) 19,00 (0.75) 4,70 (0.19) 4,70 (0.19) (0.01 in 2 ) 0,22 mm 2 Tinned Ends 0,22 mm2 (0.01 in2) Tinned Ends Notes 1 Recommended panel hole size Ø 12,5 ±0.3 mm (0.49 ±0.
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WARNING MISUSE OF DOCUMENTATION • The information presented in this product sheet is for reference only. Do not use this document as a product installation guide. • Complete installation, operation, and maintenance information is provided in the instructions supplied with each product. Failure to comply with these instructions could result in death or serious injury.