Simulates respiration at 8 rates (3 to 150 BrPM), 11 impedance variations (0.1 to 10 Ohms) and 11 basal impedances (100 to 4000 Ohms). Apnea in INS/EXP.

Selected Information:

Calibrated control of 8 respiration rates, 11 impedance variations and 11 basal impedances.

Impedance variation is almost independent of excitation frequency from dc to 100 kHz.

Simulate apnea in either inspiration or expiration. Manually generate any desired respiration rate.

Impedance output connects directly to monitor or can be used with an ECG Simulator.

Battery power or external power source.

Certificate of Conformance traceable to NIST is available.

Additional Product Data:
Download the M98C Product Data Sheet

Summary:
Verify Performance & Calibrate Respiration /Apnea Monitors

The M98C Respiration Simulator is used to quantitatively test monitors that detect changes in thoracic impedance. It dynamically simulates 11 impedance variations over a wide range of basal impedances and respiration rates. Apnea can be simulated either in expiration or inspiration independent of the respiratory rate setting.

Since the Respiration Simulator is a floating, purely resistive source, simple dc measurement instruments can be used to verify the accuracy of simulated impedance changes as well as basal impedances.

When testing monitors that detect both ECG and respiration, the M98C can be connected in series with either the Fogg M310 or M311 ECG Simulator. Their low output resistance has a minimal effect on simulated basal impedance and they feature selection of four ECG shapes and a wide range of heart rates and amplitudes.