LM
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• 316L SS Pressure Sensor with PVC
Threads
• Small Profile
• 0.5 - 4.5V High Level Output
• Gage
• ASIC Calibrated
DESCRIPTION
The LM Series incorporates stainless steel and plastic isolation suitable for level sensing in water and
other liquids. The LM series uses a patent pending low cost stainless steel sensor in a PVC plastic fitting. The
modular design is adaptable to an infinite number of plastic port variations. With high performance in a small
form factor, the LM Series enables the miniaturization of high accuracy pressure systems. The standard output
is .5V to 4.5V with a 5V supply.
FEATURES APPLICATIONS
• Threaded Process Fitting • Irrigation
• -20ºC to +70ºC Operating Temperature Range • RV and Marine Holding Tank Level
• ±1% Pressure Non Linearity • Water Storage & Recycling Systems
• ±3.0% Total Error Band • Small Tank Fluid Level
• Solid State Reliability • Chillers & Evaporative Coolers
STANDARD RANGES
Range psig Range Bar
0 to 1 • 0 to .07 •
0 to 2 • 0 to .20 •
0 to 5 • 0 to .35 •
0 to 15 • 0 to 1 •
0 to 30 • 0 to 2 •
0 to 50 • 0 to 5 •
0 to 100 • 0 to 7 •
0 to 150 • 0 to 10 •
Note: Intermediate pressure ranges available.
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PERFORMANCE SPECIFICATIONS
Supply Voltage: 5.0Vdc
Ambient Temperature: 25°C (unless otherwise specified)
PARAMETERS MIN TYP MAX UNITS NOTES
Full Scale Output 4.5 V 1
Zero Pressure Output 0.5 V 1
Pressure Non Linearity -1 ±0.25 1 %Span 2
Pressure Hysteresis -0.1 0.1 %Span
Repeatability ±0.02 %Span
Accuracy (combined linearity, hysteresis, & repeatability) ±0.3 %Span 2
Temperature Error – Span -1.5 1.5 %Span 3
Temperature Error – Zero -1.5 1.5 %Span 3
Total Error Band (includes calibration errors
above & temperature effects over the
compensated range)
±3 (>5psi)
±5 (5psi)
±7 (<5psi)
%Span
Supply Voltage 4.75 5.00 5.25 V
Supply Current 2.0 2.5 3.0 mA
Insulation Resistance (50Vdc) 50 MΩ 4
Pressure Overload 3X Rated 5
Compensated Temperature 0 40 ºC
Operating Temperature -20 +70 ºC
Weight 11 grams
Media – Pressure Port Liquids and Gases compatible with 316L Stainless Steel and Buna-
N O-Ring
Media – Reference Port Compatible with Silicon, Pyrex, Gold, Epoxy, Fluorosilicone RTV,
FR-4, and 316L Stainless Steel
Notes
1. Ratiometric to supply voltage.
2. Best fit straight line.
3. Maximum temperature error between 0 ºC and 40 ºC with respect to 25 ºC. ±2% maximum for devices below 5psi and .07Bar.
4. Between case and cable.
5. 3X maximum not to exceed 150 psi. 20 psi for 5 psi and lower.
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DIMENSIONS
CONNECTIONS
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ORDERING INFORMATION
LM 3 1 - 00000 F - 001P G
Pressure Port (F = 1/2NPT)
Connection (1 = 12" Cable)
Model
Output (3 = .5 - 4.5V Ratiometric)
Specials (Reserved for Custom Designs)
Type (G = Gage)
Units (P = psi, B = Bar)
Pressure Range
NORTH AMERICA EUROPE ASIA
Measurement Specialties
45738 Northport Loop West
Fremont, CA 94538
Tel: 1-800-767-1888
Fax: 1-510-498-1578
Sales: pfg.cs.amer@meas-spec.com
Measurement Specialties
(Europe), Ltd.
26 Rue des Dames
78340 Les Clayes-sous-Bois, France
Tel: +33 (0) 130 79 33 00
Fax: +33 (0) 134 81 03 59
Sales: pfg.cs.emea@meas-spec.com
Measurement Specialties
(China), Ltd.
No. 26 Langshan Road
Shenzhen High-Tech Park (North)
Nanshan District, Shenzhen 518057
China
Tel: +86 755 3330 5088
Fax: +86 755 3330 5099
Sales: pfg.cs.asia@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.
