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HAFBSD200C7AX5 Datasheet(PDF) 2 Page - Honeywell Solid State Electronics Center |
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HAFBSD200C7AX5 Datasheet(HTML) 2 Page - Honeywell Solid State Electronics Center |
2 / 6 page ™ 2 www.honeywell.com/sensing POTENTIAL APPLICATIONS Medical Anesthesia delivery machines Ventricular assist devices (heart pumps) Hospital diagnostics (spectrometry, gas chromatography) Nebulizers Oxygen concentrators Patient monitoring systems (respiratory monitoring) Sleep apnea machines Spirometers Ventilators Industrial Air-to-fuel ratio Analytical instrumentation (spectrometry, chromatography) Fuel cells Gas leak detection Gas meters HVAC filters VAV system on HVAC systems Meteorolgy Table 1: Absolute Maximum Ratings 1 Characteristic Parameter CAUTION IMPROPER USE Do not use these products to sense liquid or fluid flow. Failure to comply with these instructions may result in product damage. Supply voltage -0.3 Vdc to 6.0 Vdc Voltage on output pin -0.3 V to Vsupply Storage temperature range -40 C to 125 C [-40 F to 257 F] Maximum flow change 5.0 SLPM/s Maximum common mode pressure 25 psi at 25 C [77 F] Maximum flow 10 SLPM Note 1: Absolute maximum ratings are the extreme limits that the device will withstand without damage to the device. However, the electrical and mechanical characteristics are not guaranteed as the maximum limits (above recommended operating conditions) are approached, nor will the device necessarily operate at absolute maximum ratings. Table 2: Operating Characteristics Characteristic Parameter Note Supply voltage 3.3 Vdc 10%; 5.0 Vdc 10% Supply current 16 mA max. Power: 3.3 Vdc 5.0 Vdc 23 mW typ. 38 mW typ. Operating temperature range -20 C to 70 C [-4 F to 158 F] Compensated temperature range 0 C to 50 C [32 F to 122 F] 1 Accuracy: forward flow reverse flow ±0.25% FSS or ±2.5% of reading, whichever is greater ±0.25% FSS or ±9% of reading, whichever is greater 2, 4 Total error band: forward flow: reverse flow: ±0.25% FSS or ±4.5% of reading, whichever is greater ±0.25% FSS or ±9% of reading, whichever is greater 3, 4 Null accuracy ±0.02% FSS 4, 10 Response time 1 ms typ. 5 Resolution 12 bit min. Start up time 17 ms 6 Warm up time 30 ms 7 Calibration media gaseous nitrogen 8 Bus standards I 2C, fast mode (400 kHz) 9 Null stability ±0.01% FSS maximum deviation from null output after 1000 hours at 25 C Reverse polarity protection no Notes: 1. Custom and extended compensated temperature ranges are possible. Contact Honeywell for details. 2. Accuracy is the maximum deviation from the nominal digital output over the compensated flow range at a reference temperature of 25 C. Errors include offset, span, non-linearity, hysteresis and non-repeatability (see Figure 3 for the Accuracy Error Band vs Flow). 3. Total error band includes all errors over the compensated flow range including all effects due to temperature over the compensated temperature range (see Figure 4 for the Total Error Band). 4. Full Scale Span (FSS) is the algebraic difference between the digital output at the forward Full Scale (FS) flow and the digital output at the reverse FS flow. Forward flow is defined as flow from P1 to P2 as shown in Figure 4. The references to mass flow (SCCM) refer to gas flows at the standard conditions of 0 C and atmospheric pressure 760 (101.3 kPa). 5. Response time: time to electrically respond to any mass flow change at the microbridge airflow transducer (response time of the transducer may be affected by the pneumatic interface). 6. Start-up time: time to first valid reading of serial number proceeding streaming 14-bit flow measurements. 7. Warm-up time: time to the first valid flow measurement after power is applied. 8. Default calibration media is dry nitrogen gas. Please contact Honeywell for other calibration options. 9. Refer to Honeywell Technical Note for I2C protocol information. 10. Null accuracy is the maximum deviation in output at 0 SCCM from the ideal transfer function over the compensated temperature range. This includes offset errors, thermal airflow hysteresis and repeatability errors. |
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