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Proven ultrasonic technology
Effective in virtually any liquid, regardless of
viscosity
Compact design
Standard 3/4” NPT mounting
Miniaturized, encapsulated electronics use a
smaller, more compact enclosure than
comparable systems
DESCRIPTION
The Pointsense™ Model LL-100 Liquid Level Switch is the ideal solution to a host of liquid level sensing and
control applications. It uses proven ultrasonic technology to operate in virtually any liquid, regardless of
viscosity. Its small size and standard 3/4” NPT mounting make it the perfect choice for new or existing
applications. The LL-100 consists of a 316 LSS sensor and an integral miniaturized, encapsulated electronic
control unit which is mounted in a cast aluminum, watertight enclosure.
FEATURES APPLICATIONS
500:1 wet to dry ratio
Pump Protection
Epoxy painted enclosure
Storage Tanks
316 LSS sensor and encapsulated electronic
control unit
Compressors
Hydraulic Supply Lines
No calibration or special installation
requirements
Boiler Water Cutoff
Sewage Systems
Pipe Lines
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PERFORMANCE SPECIFICATIONS
Parameter
Typical Value
Parameter
Typical Value
Repeatability
2 mm typical
Mounting
3/4” NPT standard
Delay
0.5 seconds (standard)
Sensor
Material
316L SS (standard)
Input Power
115 V or 230 V 50/60 Hz AC
(standard); 12 or 24 VDC (optional)
Weight
1 lbs (0.45 Kg) approximate
Output
10 A DPDT relay
Operating
Pressure
Up to 1000 PSIG – 316 SS (6895 Kpa)
Housing
NEMA 4/NEMA 7 watertight,
explosion proof enclosure. Cast
Aluminum Class 1, Group C&D,
Class ll, Group E, F, & G; and Class
lll, Division 1 & 2
Temperature
Sensor: -40 to 300 °F (-40 to 149 °C)
Electronics: -20 to 170 °F (-29 to 77 °C)
MECHANICAL DIMENSIONS in inches [mm]
Figure 1: LL-100 series elements
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APPLICATION SCHEMATICS
Figure 2: Schematic drawing depicting the LL-100 series elements used in high and low level alarm applications.
ORDERING INFORMATION
Input
A –115 VAC
B –230 VAC
C –24 VDC
D –12 VDC
Output
D –4-20 mA (only available on
models with VDC input)
J –DPDT 10 A
Electronic Mount
1 –Integral
2 –Remote
Cable Length
XX –No cable (for models with
integral electronic mount)
10 –10 feet
20 –20 feet
30 –30 feet
40 –40 feet
03 - A C X X
Custom Label
1 –No
2 –Yes
3 –Yes with tag
Sensor Mount
C – ¾” NPT
Activation Point
Valid range 2.25-93.50
Enter as follows:
2.25 enter as 0225
2.6 enter as 0260
12 enter as 1200
Sensor Material
A –316L SS
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TECHNICAL CONTACT INFORMATION
North America
Europe
Asia
Measurement Specialties, Inc.
1000 Lucas Way
Hampton, VA 23666
Tel: 1-800-745-8008
Fax: 1-757-766-4297
Sales: piezo@meas-spec.com
MEAS Deutschland GmbH
Hauert 13
44227 Dortmund
Germany
Sales & Customer Service: +49 (0)231 9740 21
Technical Support: +44 (0)138 38700 01
Email: piezoeurope@meas-spec.com
Measurement Specialties (China) Ltd.
No. 26 Langshan Road,
High-Tech Park (North)
Nanshan District, Shenzhen 518057
Tel: +86 755 3330 5068
Email: sales.china@meas-spec.com
The information in this sheet has been carefully reviewed and is believed to be accurate; however, no responsibility is assumed for
inaccuracies. Furthermore, this information does not convey to the purchaser of such devices any license under the patent rights to the
manufacturer. Measurement Specialties, Inc. reserves the right to make changes without further notice to any product herein. Measurement
Specialties, Inc. makes no warranty, representation or guarantee regarding the suitability of its product for any particular purpose, nor does
Measurement Specialties, Inc. assume any liability arising out of the application or use of any product or circuit and specifically disclaims
any and all liability, including without limitation consequential or incidental damages. Typical parameters can and do vary in different
applications. All operating parameters must be validated for each customer application by customer’s technical experts. Measurement
Specialties, Inc. does not convey any license under its patent rights nor the rights of others.
