Model 1865 Force/Pressure transducer DESCRIPTION The Model 1865 is a high-performance transducer specifically provide medical personnel with useful diagnostic information designed to address the needs of medical and specialized regarding the condition of the patient’s circulatory system. OEM applications. Offering laser-trimmed compensation, the These force/pressure transducers can also be used with other Model 1865 may be specified to operate with either a medical dispensing devices, such as syringe pumps, to constant current or voltage supply. improve safety and accuracy. The Model 1865 employs a solid state piezoresistive pressure May be operated in either current or voltage excitation, the transducer mounted in a plastic package. For applications Model 1865’s output can be amplified or signal conditioned, where force is applied by a flexible membrane to the sensor, as required. The semiconductor-based sensor offers high such as found in infusion pumps, the Model 1865’s precision resolution using its Wheatstone Bridge strain gauge design. height silicone diaphragm provides long life and is a reliable The height of the unit’s patented, poured-in-place silicon replacement for older force or load cell transducers. Utilizing rubber diaphragm is controlled to ensure sensitivity to low a silicon rubber diaphragm, the 1865 is compatible with some pressure. This diaphragm is bonded to a plastic header and liquid media applications. transmits force applied through a special silicone gel to the diaphragm of a silicon peizoresistive die. The back of the die The Model 1865 provides access to important safety features is exposed to atmospheric pressure, which results in a gauge in critical care medical instrumentation, such as occlusion pressure output. pressure or infiltration detection. The pressure data can FEATURES TYPICAL APPLICATIONS (cid:127)Silicon pressure/force interface diaphragm (cid:127)Infusion pumps (cid:127)Force measurement for infusion pump applications (cid:127)Anesthesia monitors (cid:127)Pressure measurement for liquid media (cid:127)Non-corrosive, nonpressurized media-level sensors (cid:127)Medical-grade materials (cid:127)Ventilation systems (cid:127)8-pin DIP electrical connection (cid:127)Blood pressure equipment (cid:127)Laser trimmed (cid:127)Syringe pumps (cid:127)Choice of voltage or constant current excitation (cid:127)Drug delivery systems

Model 1865 Series ELECTRICAL SPECIFICATIONS PHYSICAL SPECIFICATIONS Ratings Specification Input impedance Pressure over-range protection 3X span or 60 psi, whichever Current excitation 2.0 kOhm min. to 8.0 kOhm max. is least Voltage excitation 8.0 kOhm min. to 40 kOhm max. Media/materials compatibility Output impedance Top side Room atmosphere, directly Current excitation 3.5 kOhm min. to 6.0 kOhm max. applied force, and liquids Voltage excitation 3.5 kOhm min. to 6.0 kOhm max. compatible with dimethyl Input excitation silicon, polyetherimide Current < 2.0 mA (Ultem) Voltage < 15.0 Vdc Bottom side Non-corrosive dry gasses Effect of excitation change Ratiometric and fluids compatible with Response time (10% to 90%) ≤5 milliseconds silicon, Pyrex, RTV silicone, Insulation resistance ≥100 MOhm at 50 Vdc and ceramic Output common mode voltage 50 % of input typical Mass 3.0 g with laser-trim board ENVIRONMENTAL CONDITIONS Specification Position effect ≤0.05 % of zero or span shift for 90° tilt in any direction Vibration effect No change in performance at 10 Gs RMS, 20 Hz to 2,000 Hz Shock 100 Gs for 11 milliseconds Life 1 million cycles Preliminary data* Humidity 0% to 95%RH, non condensing PERFORMANCE SPECIFICATIONS Min. Typ. Max. Unit Temperature Compensated Performance Nonlinearity - 0.10 0.25 % of Span, BFSL Hysteresis - 0.0125 0.015 % of Span, BFSL Repeatability - 0.0125 0.015 % of Span, BFSL Output (laser trimmed normalized) Current excitation 98 100 102 mVdc Voltage Excitation 38 40 42 mVdc Zero pressure -2 0 2 mVdc Temperature Performance Compensated temperature range -1 °C to 54 °C [30 °F to 129 °F] Operating temperature range -28 °C to 54 °C [-19 °F to 129 °F] Maximum zero error 0.5 % of Span in reference to 27 °C [80.6 °F] Maximum span error 0.5 % of Span in reference to 27 °C [80.6 °F] Thermal hysteresis 0.2 % of Span, compensated temperature range Long-term stability ± 0.3 % of Span per six months Storage temperature range -28 °C to 54 °C [-19°F to 129 °F] 2 www.honeywell.com/sensing

Force/Pressure transducer FIGURE 1. SENSING ELEMENTS REFERENCE CONDITIONS Specification 8 2 Media temperature 27 °C ± 1 °C [80 °F ± 2 °F] Ambient temperature 27 °C ± 1 °C [80 °F ± 2 °F] Vibration 0.1 G (1 m/s/s) max. 6 1 Humidity 50 % ± 10 % Ambient pressure 12.8 psi to 16.5 psi [860 mBar to 1060 mBar] Excitation source 1.5 mAdc ± 0.0015 mAdc or 7 3 10.0 Vdc ± 0.01 Vdc Pin Connection Pin Connection 1 +Output 5 +Input 2 NC 6 -Output 3 -Input 7 NC 4 NC 8 NC FIGURE 2. MOUNTING DIMENSIONS IN MM (INCHES), FOR REFERENCE ONLY FIGURE 3. LASER TRIM BOARD FIGURE 4. LASER TRIM BOARD Current Excitation, Normalized Output Voltage, Normalized Output Honeywell Sensing and Control 3

ORDER GUIDE WARRANTY/REMEDY SALES AND SERVICE 11111888886666655555 ––––– GGGGG ––––– DDDDD NNNNN Honeywell warrants goods of its Honeywell serves its customers through MMMMMooooodddddeeeeelllll manufacture as being free of defective a worldwide network of sales offices, materials and faulty workmanship. representatives and distributors. For PPPPPrrrrreeeeessssssssssuuuuurrrrreeeee RRRRRaaaaannnnngggggeeeee Honeywell’s standard product warranty application assistance, current SSSSSeeeeennnnnsssssooooorrrrr TTTTTyyyyypppppeeeee applies unless agreed to otherwise by specifications, pricing or name of the EEEEExxxxxccccciiiiitttttaaaaatttttiiiiiooooonnnnn Honeywell in writing; please refer to nearest Authorized Distributor, contact your order acknowledgement or consult your local sales office or: DDDDDiiiiiaaaaappppphhhhhrrrrraaaaagggggmmmmm your local sales office for specific CCCCCooooommmmmpppppeeeeennnnnsssssaaaaatttttiiiiiooooonnnnn EEEEE-----mmmmmaaaaaiiiiilllll::::: info.sc@honeywell.com warranty details. If warranted goods are PRESSURE RANGE returned to Honeywell during the period IIIIInnnnnttttteeeeerrrrrnnnnneeeeettttt::::: www.honeywell.com/sensing 11 = 0 psi to 5 psi of coverage, Honeywell will repair or PPPPPhhhhhooooonnnnneeeee aaaaannnnnddddd FFFFFaaaaaxxxxx::::: 12 = 0 psi to 10 psi replace, at its option, without charge Asia Pacific +65 6355-2828 13 = 0 psi to 15 psi those items it finds defective. TTTTThhhhheeeee +65 6445-3033 Fax 15 = 0 psi to 25 psi fffffooooorrrrreeeeegggggoooooiiiiinnnnnggggg iiiiisssss bbbbbuuuuuyyyyyeeeeerrrrr’’’’’sssss sssssooooollllleeeee rrrrreeeeemmmmmeeeeedddddyyyyy aaaaannnnnddddd Europe +44 (0) 1698 481481 17 = 0 psi to 30 psi iiiiisssss iiiiinnnnn llllliiiiieeeeeuuuuu ooooofffff aaaaallllllllll wwwwwaaaaarrrrrrrrrraaaaannnnntttttiiiiieeeeesssss,,,,, eeeeexxxxxppppprrrrreeeeesssssssssseeeeeddddd +44 (0) 1698 481676 Fax ooooorrrrr iiiiimmmmmpppppllllliiiiieeeeeddddd,,,,, iiiiinnnnncccccllllluuuuudddddiiiiinnnnnggggg ttttthhhhhooooossssseeeee ooooofffff SENSOR TYPE Latin America +1-305-805-8188 mmmmmeeeeerrrrrccccchhhhhaaaaannnnntttttaaaaabbbbbiiiiillllliiiiitttttyyyyy aaaaannnnnddddd fffffiiiiitttttnnnnneeeeessssssssss fffffooooorrrrr aaaaa GGGGG = Gauge Pressure +1-305-883-8257 Fax pppppaaaaarrrrrtttttiiiiicccccuuuuulllllaaaaarrrrr pppppuuuuurrrrrpppppooooossssseeeee..... IIIIInnnnn nnnnnooooo eeeeevvvvveeeeennnnnttttt ssssshhhhhaaaaallllllllll USA/Canada +1-800-537-6945 EXCITATION HHHHHooooonnnnneeeeeyyyyywwwwweeeeellllllllll bbbbbeeeee llllliiiiiaaaaabbbbbllllleeeee fffffooooorrrrr +1-815-235-6847 LLLLL = 1.5 mA cccccooooonnnnnssssseeeeeqqqqquuuuueeeeennnnntttttiiiiiaaaaalllll,,,,, ssssspppppeeeeeccccciiiiiaaaaalllll,,,,, ooooorrrrr iiiiinnnnndddddiiiiirrrrreeeeecccccttttt +1-815-235-6545 Fax KKKKK = 10 Vdc dddddaaaaammmmmaaaaagggggeeeeesssss..... DIAPHRAGM TYPE While we provide application DDDDD = Dimethyl Silicone assistance personally, through our literature and the Honeywell web site, it COMPENSATION is up to the customer to determine the NNNNN = Laser trimmed, normalized output suitability of the product in the ACCURACY GRADE application. Higher accuracy grades are available Specifications may change without as specials. notice. The information we supply is Custom configurations are available on believed to be accurate and reliable as request. of this printing. However, we assume no WARNING responsibility for its use. MISUSE OF DOCUMENTATION (cid:127) The information presented in this product sheet is for reference only. WARNING Do not use this document as a PERSONAL INJURY product installation guide. DO NOT USE these products as safety (cid:127) Complete installation, operation, and or emergency stop devices or in any maintenance information is provided other application where failure of the in the instructions supplied with product could result in personal injury. each product. FFFFFaaaaaiiiiillllluuuuurrrrreeeee tttttooooo cccccooooommmmmppppplllllyyyyy wwwwwiiiiittttthhhhh ttttthhhhheeeeessssseeeee Failure to comply with these iiiiinnnnnssssstttttrrrrruuuuuccccctttttiiiiiooooonnnnnsssss cccccooooouuuuulllllddddd rrrrreeeeesssssuuuuulllllttttt iiiiinnnnn dddddeeeeeaaaaattttthhhhh ooooorrrrr instructions could result in death or ssssseeeeerrrrriiiiiooooouuuuusssss iiiiinnnnnjjjjjuuuuurrrrryyyyy..... serious injury. Automation and Control Solutions Sensing and Control Honeywell 11 West Spring Street Freeport, Illinois 61032, USA 008094-3-EN IL50 GLO February 2020 www.honeywell.com Copyright 2020 Honeywell International Inc.