Model 154N UltraStable Medical Instruments 316 SS Pressure Sensor Process Control 0-100 mV Output Waste Water Management Gage, Sealed Gage and Absolute Refrigeration/Compressors Temperature Compensated Pressure Transmitters Level Systems DESCRIPTION The Model 154N is a media compatible, compensated, piezoresistive silicon pressure sensor packaged in a 316 stainless steel housing. The sensing package utilizes silicone 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, ¼ NPT Model 96, and Model 85. High pressure sensors are also FEATURES available. O-ring Mount 0.1% Pressure Non-linearity –20°c To +85°c Compensated Temperature Range DIMENSIONS w/BACK END OPTIONS BASIC SENSING ELEMENT DIAPHRAGM, .001 [0.03] THICK Ø.7413/.7427 [18.829/18.864] WELD RING 1.0% Interchangeable Span (Provided By Gain Set Resistor) Solid State Reliability Low Power O-RING, BUNA-N, Ø.070 [1.78] .54 .24 [6.0] EPOXY STRAIN RELIEF STANDARD RANGES Range 0 to 5 psig psia RIBBON CABLE, 26 AWG -O ● ● 0 to 30 ● ● 0 to 50 ● ● 0 to 100 ● ● 0 to 300 ● ● 0 to 500 ● ● -E BALL SEAL Contact Factory 0 to 15 4X Ø.018 [0.46] 6.00±.25 [152.4±6.4] CONNECTOR, FEMALE, MOLEX P/N 14-56-2066 (.100 [2.54] CENTERS) 2X .18 [4.6] PAD #1 +E +O Ø.745/.747 [18.92/18.97] 2X .09 [2.3] 3X .05 [1.3] VIEW SHOWN w/o CABLE AND CONNECTOR FOR CLARITY 1-60 ISO – Standard Model 154N UltraStable 316 SS Pressure Sensor PERFORMANCE SPECIFICATIONS 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. PARAMETERS MIN TYP MAX UNITS NOTES Full Scale Output Span 75 100 150 mV 1, 2 Zero Offset -1 0 1 mV 2 0.10 % Span 3 Pressure Non-linearity -0.10 Pressure Hysteresis -0.05 0.02 0.05 % Span Input Resistance 2,000 3,500 4,500 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 0.1 ±% Span/yr. Long Term Stability - Offset Long Term Stability - Span 0.1 Supply Current 0.5 Output Load Resistance Insulation Resistance (50 VDC) 1.5 ±% Span/yr. mA 6 5 MΩ 7 50 MΩ 8 Pressure Overload 2.0 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, Fluorosilicone Rubber and 316L Stainless Steel Weight 24 g 10 Notes 1. For amplified output circuits, 3.012V ± 1% interchangeability with gain set resistor. See Application Note TN-003. 7. 8. Between case and sensing element. 2. Measured at vacuum for absolute (A), ambient for gage (G). 9. 3. Best fit straight line. Maximum temperature range for product with standard cable and connector is –20°C to +105°C. Load resistance to reduce measurement errors due to output loading. 4. Over Temperature range: -20°C to +85°C Span with respect to +25°C. 10. Weight depends upon configuration (cable, connector). 5. 15 psi range sensors have a temperature error of ±0.75% (Max) of Zero from -20°C to 85°C. 11. Standard gauge units are not recommended for vacuum applications. For vacuum applications, contact factory. 6. Guarantees output/input ratiometricity. 12. For pressure ranges < 15 psi, consult factory on performance specifications. ORDERING INFORMATION APPLICATION SCHEMATIC 154N (Note 11) (Note 12) CONNECTIONS PAD NO. / CABLE FUNCTION 1 +OUT ISO – Standard 2 -EX 3 +EX 4 -OUT 5 GAIN 6 GAIN June 2001 Feel free to contact customer service with any questions at Toll free 1(800)745-8008; Phone (757)766-1500; Fax (757)766-4297 1-61