• Pressure range of -30 to 300 mmHg
• Excellent Burst Pressure
• Compliant with AAMI BP22 specifications
• Dielectric gel barrier
• Fully Tested
• Small, disposable, low-cost package
• Temperature Compensated
• Solid state piezoresistive sensor
• Top side pressure entry
• Easy to install into customer’s disposable blood pressure device housing
• Compatible with automated assembly equipment
• Compatible in air, gas and liquid
• Shipped as 120UP snapstrates or on tape and reel
• Automated testing and assembly
• Custom Options Available
• Engineering, design and manufacturing under one roof in Utah, US.

 

 

Merit Sensor Systems, Inc. has partnered with customers for more than 20 years to design, fabricate, assemble and package reliable, cost-effective piezoresistive pressure sensor solutions for automotive, medical, industrial, aviation, defense and consumer applications.

 

Merit Sensor offers full-service design capabilities, in-house wafer fabrication, flexible shipping, packaging and assembly, piezoresistive technology (PRT), expansive pressure ranges (0.15 psi to 15,000 psi), complete pressure measurement (absolute, gage, differential and vacuum) and unmatched operating temperature range (-40°C to 150°C) via our Sentium® process. Additionally, Merit Sensor is able to provide unparalleled flexibility to customize pressure sensing solutions to fit into our customers’ applications.

 

Unlike other pressure sensor suppliers, Merit Sensor can provide customers with completely customized pressure sensor designs with large or smaller/limited production runs. Our customers range from pressure sensor transducer manufacturers who are already experts in pressure sensing technology and rely on Merit Sensor for highly stable and sensitive MEMS sensing elements (bare die), to customers who have little to no experience in the pressure sensing world and look to Merit Sensor to assist with a completely custom design and implementation of a pressure sensor that best fits their application.

 

At Merit Sensor our engineers are application experts. We are ready to help customers design your application to work with a pressure sensor, and/or design a customized pressure sensing solution that works for your application. If you are unsure whether a pressure sensor is right for your application, Merit Sensor can help you make that determination.

 

 

 

Parameter	Minimum	Typical	Maximum	Units	Notes
General
Pressure Range	-30		300	mmHg
Overpressure	125			PSI
Electrical (22°C unless otherwise stated)
Input Excitation	1		10	VDC	Calibrated to 6 VDC
Risk Current			2	µA	Previously qualified, not tested in production
Input Impedance	1,200		3,000	Ω
Output Impedance	285		315	Ω
Dielectric Breakdown	10,000		VDC		Previously qualified, not tested in production
Environmental
Temp (Comp/Operating)	15		40	°C
Temperature (Storage)	-25		70	°C
Humidity	10		90	%
Light Sensitivity			1	mmHg	Previously qualified, not tested in production – Per AAMI BP22
Operating Product Life	168			Hours
Shelf Life	3			Years
Sterilization (ETO)	3			Cycles	Sterilization performed by customer
Mechanical
Weight			2	Grams
Volume Displacement			0.02	mm3
Media Interface					Medical grade, dielectric gel
Gel Tube Interface Material					Polycarbonate
Performance
Assumes 6 VDC, 22°C and after five second warm-up unless otherwise specified.
Offset	-25	0	25	mmHg	Zero
Sensitivity	4.95	5	5.05	µ/V/V/mmHg
Calibration	97.5	100	102.5	mmHg	Output of sensor with no pressure applied and a 150 KΩ resistor shorted across + IN to + OUT
Symmetry			5	%
Accuracy (-30 to 50 mmHg)	-1 mmHg -1% of Reading	0	+1mmHg +1% of Reading		Combined effect of sensitivity, repeatability, nonlinearity and hysteresis errors. Per AAMI BP22
Accuracy (50 to 300 mmHg)	-3	0	3	% output	Combined effect of sensitivity, repeatability, nonlinearity and hysteresis errors. Per AAMI BP22
Temp Coeff – Zero	-0.3	0	0.3	mmHg/°C	Over a temperature range of 15°C to 40°C.
Temp Coeff – Sensitivity	-0.1	0	0.1	%/°C	Over a temperature range of 15°C to 40°C.
Frequency Response	1,200			Hz	Previously qualified, not tested in production
Phase Shift			5	degrees	Previously qualified, not tested in production
Offset Drift			1	mmHg/8 hrs	Normalized offset/bridge voltage – 8 hours after 20 second warm-up, Previously qualified, not tested in production