85
Compensated
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• 316L SS Pressure Sensor
• Small Profile
• 0 - 100mV Output
• Absolute and Gage
• Temperature Compensated
DESCRIPTION
The 85 compensated is a small profile, media compatible, piezoresistive silicon pressure sensor
packaged in a 316L stainless steel housing. The 85 compensated is offered in a weldable package or with a
variety of threaded fittings such as 1/4 and 1/8NPT, 1/4BSP as well as custom process fittings.
The 85 compensated is designed for OEM applications where compatibility with corrosive media is
required. The sensing package utilizes silicon oil to transfer pressure from the 316L stainless steel diaphragm to
the sensing element. A ceramic substrate is attached to the package that contains laser-trimmed resistors for
temperature compensation and offset correction. An additional laser trimmed resistor is included which can be
used to adjust an external differential amplifier and provide span interchangeability to within ±1%.
Please refer to the 85 uncompensated and constant voltage datasheets for more information on
different features of the 85.
FEATURES APPLICATIONS
• Weldable and Threaded Process Fittings • Medical Instruments
• -40ºC to +125ºC Operating
Temperature Range
• Process Control
• Fresh & Waste Water Measurements
• Up to ±0.1% Pressure Non Linearity • Partial Vacuum Gas Measurement
• 1.0% Interchangeable Span
(provided by gain set resistor)
• Pressure Transmitters
• Tank Level Systems (RV & Industrial)
• Solid State Reliability
STANDARD RANGES
Range psia psig
0 to 5 • •
0 to 15 • •
0 to 30 • •
0 to 50 • •
0 to 100 • •
0 to 300 • •
0 to 500 • •
85
Compensated
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PERFORMANCE SPECIFICATIONS
Supply Current: 1.5mA
Ambient Temperature: 25°C (unless otherwise specified)
PARAMETERS 005PSI ≥015PSI UNITS NOTES
MIN TYP MAX MIN TYP MAX
Span 75 100 150 75 100 150 mV 1
Zero Pressure Output -2.0 0 2.0 -1.0 0 1.0 mV 2
Pressure Non Linearity -0.20 0.20 -0.10 0.10 %Span 3
Pressure Hysteresis -0.10 ±0.02 0.10 -0.05 ±0.02 0.05 %Span
Repeatability ±0.02 ±0.02 %Span
Input Resistance 2.0K 3.5K 5.8K 2.0K 3.5K 5.8K Ω
Output Resistance 4.0K 6.0K 4.0K 6.0K Ω
Temperature Error – Span -1.0 1.0 -0.75 0.75 %Span 4
Temperature Error – Offset -2.5 2.5 -0.50 0.50 %Span 4, 5
Thermal Hysteresis – Span -0.25 ±0.05 0.25 -0.25 ±0.05 0.25 %Span 4
Thermal Hysteresis – Offset -0.25 ±0.05 0.25 -0.25 ±0.05 0.25 %Span 4
Long Term Stability – Span ±0.10 ±0.10 %Span/Year
Long Term Stability – Offset ±0.25 ±0.10 %Span/Year
Supply Current 0.5 1.5 2.0 0.5 1.5 2.0 mA 6
Output Load Resistance 5M 5M Ω 7
Insulation Resistance (50Vdc) 50M 50M Ω 8
Output Noise (10Hz to 1KHz) 1.0 1.0 uV p-p
Response Time (10% to 90%) 0.1 0.1 ms
Pressure Overload 3X 3X Rated
Pressure Burst 4X 4X Rated 9
Compensated Temperature 0 +50 -20 +85 °C
Operating Temperature -20 +70 -40 +125 ºC 10
Storage Temperature -50 +125 -50 +125 ºC 10
Media – Pressure Port Liquids and Gases compatible with 316/316L Stainless Steel
Media – Reference Port Compatible with Silicon, Pyrex, Gold, Fluorosilicone Rubber, and 316/316L
Stainless Steel
Notes
1. For amplified output circuits, 3.012V ±1% interchangeability with gain set resistor. See application schematic.
2. Measured at vacuum for absolute (A), ambient for gage (G).
3. Best fit straight line.
4. Over the compensated temperature range with respect to 25°C.
5. 15psi range sensors have a temperature error – offset of ±0.75% (max).
6. Guarantees output/input ratiometricity.
7. Load resistance to reduce measurement errors due to output loading.
8. Between case and sending element.
9. The maximum pressure that can be applied to a transducer without rupture of either the sensing element or transducer.
10. Maximum temperature range for product with standard cable and connector is -20 to +105°C.
85
Compensated
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DIMENSIONS
CONNECTIONS
85
Compensated
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APPLICATION SCHEMATIC
ORDERING INFORMATION
85 - 050 G - 0 C T
Pressure Range
Type (A = Absolute, G = Gage)
Model
Fitting Type (0 = Weldable, See Fittings)
Electrical (P = Solder Pads, R = Ribbon Cable
C = Cable with connector)
Vent (T = Tube, Blank = No Tube)
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.
