Calibration, noise and accuracy data: download TSD117B to TSI4000 flow standard (xls and txt)
Airflow Accessories for the TSD117B
- For air flow and lung volume measurements, use bacterial filter with integrated mouthpiece AFT36 .
- For measurements of expired gases, use non-rebreathing T valve AFT22 with facemask AFT10 and mixing chamber AFT15A or AFT15B.
Recommended sterilization: cold sterilization (i.e., Cidex) or autoclave. The detachable flow head (RX117A) is dishwasher safe.
Airflow Transducer TSD117B connects to the O2100C Oxygen Measurement Amp via AFT Couplers and Mouthpiece
For Use with Ventilators
TSD117B is included in Ventilator Validation System VVK100-SYS or can be used apart.
If used apart and precise flow/volume estimates are needed, then the configuration filters with couplers should be used (AFT1-AFT11B-TSD117-AFT11B-AFT1) in addition to correcting polynomials for negative and positive flow. For further accuracy, a syringe calibration is recommended to determine appropriate overall multiplicative factors for specific devices; AFT27 3-liter calibration syringe can be used.
When the TSD117B is used for volume calculations, the BIOPAC provided polynomial corrections are applied to this connection configuration.
The AFT11B couplers are oriented so that the larger ID portion is inserted into the inlet and outlet ports of the TSD117B.
Correction polynomials are created for positive going flow and negative going flow. Accordingly, inlet/outlet orientation of the TSD117B is important to note. The correction polynomials for TSD117B are as follows:
TSD117B correction curves for small tube interface turbulence.
Positive Flow
(104.885*(C0.0^5))-(79.0459*(C0.0^4))+(39.0034*(C0.0^3))-(19.8456*(C0.0^2))+(18.9708*C0.0)
Negative Flow
485.591*C1.0^5 + 431.054*C1.0^4 + 110.998*C1.0^3 + 11.5803*C1.0^2 + 18.5883*C1.0
Assumptions for TSD117B use:
- TSD117B connected to DA100C
- DA100C set to:
– Gain: 200
– 10 Hz LP ON
– 300 Hz LP ON
– DC Coupling
– VREF1 = +5V
– VEF2 = -5V
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