Schaevitz
ICSensors
Microfused
Piezo Film
innovation performance reliability
MODEL 154N
Ultrastable
DESCRIPTION
The Model 154N The Model 154N is a media
compatible, compensated, piezoresistive silicon
pressure sensor packaged in a 316 stainless steel
housing. The sensing package utilizes silicon oil to
transfer pressure from the 316 stainless steel
diaphragm to the sensing element.
The Model 154N is designed for low pressure
applications. 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 sensitivity
variations by
setting the gain of
an external
differential amplifier to
within ±1% interchangeability.
Alternatives include cap-ring Models 84 or 86,
1/4 NPT Model 96, and Model 85. High pressure
sensors are also available.
IC Sensors
FEATURES
O-ring Mount
±0.1% Pressure Non-linearity
-20ºC To +85ºC Compensated
Temperature Range
1.0% Interchangeable Span (provided
by gain set resistor)
Solid State Reliability
Low Power
APPLICATIONS
Medical Instruments
Process Control
Waste Water Management
Refrigeration/Compressors
Pressure Transmitters
Level Systems
316 SS Pressure Sensor
0-100 mV Output
Gage, Sealed Gage and Absolute
Temperature Compensated
Dimensions
internet:www.msisensors.com
Tel: 1-757-766-1500
North America Toll Free: 1-800-745-8008
Fax: 1-757-766-4297
7/16/04
AND CONNECTOR FOR CLARITY
VIEW SHOWN w/o CABLE
PAD #1
CONNECTOR, FEMALE,
MOLEX P/N 14-56-2066
(.100 [2.54] CENTERS)
RIBBON CABLE, 26 AWG
BALL SEAL
-E
-O
+O
+E
DIAPHRAGM,
.001 [0.03] THICK
WELD RING
O-RING, BUNA-N,
Ø.070 [1.78]
w/BACK END OPTIONS BASIC SENSING ELEMENT
EPOXY STRAIN RELIEF
3X .05 [1.3]
6.00±.25
[152.4±6.4]
2X .09 [2.3]
2X .18 [4.6]
.54
Ø.7413/.7427
[18.829/18.864]
Ø.745/.747
[18.92/18.97]
4X Ø.018 [0.46]
.24 [6.0]
316 SS Pressure Sensor IC Sensors
Performance Specifications
MODEL 154N
Ultrastable
Connections
Ordering Information
PARAMETERS MIN TYP MAX UNITS NOTES
Full Scale Output Span 75 100 150 mV 1.2
Zero Offset -1 0 1 mV 2
Pressure Non-linearity -0.10 0.10 % Span 3
Pressure Hysteresis -0.05 0.02 0.05 % Span
Input Resistance 2000 3500 4500 Ω
Output Resistance 4000 25000 Ω
Temperature Error - Span -0.75 0.75 % Span 4
Temperature Error - Zero -0.5 0.5 % Span 4, 5
Thermal Hysteresis - Span 0.05 % Span 4
Thermal Hysteresis - Zero 0.05 % Span 4
Long Term Stability of Offset 0.1 ±% Span/yr.
Long Term Stability of Span 0.1 ±% Span/yr.
Supply Current 0.5 1.5 2.0 mA 6
Output Load Resistance 5 MΩ7
Insulation Resistance (50 VDC) 50 MΩ8
Pressure Overload 3X Rated
Compensated Operating Temperature –20°C to +85°C 9
Operating Temperature Range –40°C to +125°C 9
Storage Temperature Range –50°C to +125°C 9
Media - Pressure Port Liquids and Gases compatible with 316L Stainless Steel
Media - Reference Port Compatible with Silicon, Pyrex, Gold, Fluorosilicon Rubber and 316L Stainless Steel
Weight 24 grams 10
1. For amplified output circuits, 3.012V ± 1% interchangeability with
gainset resistor. See Application Note TN-003.
2. Measured at vacuum for absolute (A), ambient for gage (G).
3. Best fit straight line.
4. Over Temperature range: -20°C to +85°C Span with respect to +25°C.
5. 15 psi range sensors have a temperature error of ±0.75% (Max) of Zero
from -20°C to 85°C.
6. Guarantees output/input ratiometricity.
7. Load resistance to reduce measurement errors due to output loading.
8. Between case and sensing element.
9. Maximum temperature range for product with standard cable and
connector is –20°C to +105°C.
10. Weight depends upon configuration (cable, connector).
11. Standard gauge units are not recommended for vacuum applications.
For vacuum applications below 1/2 atmosphere, contact factory.
12. For pressure ranges < 15 psi, consult factory on performance
specifications.
Application Schematic
Pad. No./Cable Function
1 +OUT
2 -EX
3 +EX
4 -OUT
5 GAIN
6 GAIN
Notes
All parameters measured at 1.5mA drive and at 25°C after 10 second warm up, unless otherwise specified. Unless specifically indicated, only those
parameters indicated as tested are verified on each part. Parameters are specified for the compensated version only.
(Note
(Note 11)
Range psig psia
0 to 5 see low pressure version
0 to 15 ••
0 to 30 ••
0 to 50 ••
0 to 100 ••
0 to 300 ••
0 to 500 ••
Standard Ranges
