5
To measure respiration with Model 1132
transducer:
•
Plug Model 1132 PneumoTrace® into front-panel
safety jacks (instead of electrodes as above);
•
Wrap Pneumotrace® around subject at level of
maximum respiratory motion.
•
Ask subject to take a deep breath and hold it.
•
Fasten one side of Pneumotrace® to end of
VELCRO strap, pull taut around subject, then
fasten other strap end to other side of
Pneumotrace®.
•
Subject may now resume normal breathing;
RESP1 operates as described for EEG or EKG
electrodes.
Using the RESP1/EF or RESP1/EKG
Two variants of the RESP1 can output both respiration and
non-clinical ECG signals:
•
The RESP1/EF separates the ECG signal from
the respiration signal with a filter but does not
amplify the ECG output.
•
The RESP1/EKG adds an ECG amplifier after the
filter to yield an ECG of 1V output per 1 mV input;
this variant has a serial number labeled "ECG."
•
With either variant, if the ECG signal is upside
down, correct by moving the electrode lead from
the red jack to the black jack and vice versa.
•
The RESP1/EF need not be powered ON to
output EKG; however, the RESP1/EKG must be
ON to output EKG.
6
•
Electrode contact resistance must be under
10,000 ohms for good ECG results; higher
resistance causes 50/60 Hz noise.
•
To reduce noise, place a third, reference electrode
on subject; plug lead into green safety jack on
front panel.
•
You can also reduce electrode noise problems by
gently abrading sites before attaching electrodes.
