Honeywell 1865-02G-LDN

The Model 1865 is a high-performance sensor specifically designed to meet the requirements of medical and professional OEM applications. This model offers laser-trimmed compensation and can be specified for operation with either a constant-current or constant-voltage power supply. The Model 1865 employs a solid-state piezoresistive pressure sensor mounted in a plastic package. For applications where force is applied to the sensor through a flexible diaphragm, such as infusion pumps, the Model 1865's precision-height silicone diaphragm offers long service life and serves as a reliable replacement for older force or load sensors. With its silicone rubber diaphragm, the Model 1865 is suitable for certain liquid media applications. The Model 1865 provides critical safety functions for critical care medical instrumentation, such as occlusion pressure or infiltration detection. Pressure data can provide medical personnel with useful diagnostic information regarding a patient's circulatory system status. These force/pressure sensors can also be used with other medical dispensing equipment, such as syringe pumps, to enhance safety and accuracy. The Model 1865 operates under either current or voltage excitation, and its output can be amplified or signal-conditioned as required. The semiconductor-based sensor employs a Wheatstone bridge strain gauge design for high resolution. The height of the device's patented field-potted silicone rubber diaphragm is controlled to ensure sensitivity to low pressures. The diaphragm is bonded to the plastic header and transmits applied force to the diaphragm of the silicon piezoresistive chip via a special silicone gel. The back of the chip is exposed to atmospheric pressure, producing a gauge pressure output.

• Silicon pressure/force interface diaphragm
• Force measurement for infusion pump applications
• Pressure measurement for liquid media
• Medical-grade materials
• 8-pin DIP electrical connection
• Laser trimming
• Voltage or constant current excitation, selectable

• Infusion pumps
• Anesthesia monitors
• Non-corrosive, non-pressurized media level sensors
• Ventilation systems
• Blood pressure devices