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6. INSPIRATORY TIMES
CYCLE/CPAP switch to CYCLE
PIP full CCW
PEEP PRESSURE full CW
FLOW OFF
INSPIRATORY TIME - variable
EXPIRATORY TIME 1.0 sec
Using a digital stopwatch set the Expiratory time to an accurate 1 second.
Check the Inspiratory times at each setting by measuring the total length of time
for ten breaths, then divide that time by 10 and subtract 1. The remainder is the
inspiratory time averaged over ten breaths.
7. EXPIRATORY TIMES
CYCLE/CPAP switch to CYCLE
PIP full CCW
PEEP PRESSURE full CW
FLOW OFF
INSPIRATORY TIME - 1 sec
EXPIRATORY TIME - variable
Same as with inspiratory time, but set the Inspiratory to an accurate 1 second
and then check each Expiratory setting. With knob against IMV RANGE
STOP expiratory time should be 30 ±3 seconds
C. CALIBRATION
The accuracy of the instrument's indicators and controls should be retained over
its life as long as it has not been subject to abuse. The calibration of the
pressure gauge, flow meters, and timing controls may be checked with relative
ease.
NOTE: The calibration of the two timing controls (INSP. TIME and EXP.
TIME) depends on the fixed position of the knobs on their shafts. Should
these knobs come loose, do not attempt to refasten. Return the instrument
to BMD for repair.
The pressure gauge readings can be compared to a calibrated standard by
teeing into the hose connected to the GAUGE fitting at the rear of the MVP-10,
and connecting it to the standard gauge.
The timing controls, INSP. TIME and EXP. TIME, may be roughly checked by
observing the cycling of the pressure gauge and timing with a stopwatch.
If the calibration of any of the indicators or controls is in error, then the
instrument should be returned to BMD for adjustment.
