Merit Medical Mentor Simulator/Tester - Manual (Page 6)

4. Connect the pressure monitoring tubing
(suggested for use with the Mentor - Catalog #
PM6012P) to the Mentor’s Transducer Test Port
luer fitting. Attach the other end to the backside
calibration port (or the calibration port located
in the disposable cable) of the transducer. See
Diagram B on page 3.
5. Generate a positive pressure on the monitor
screen by rotating the Pressure Regulator Knob
toward the (-) sign. (Please note that a negative
pressure reading on the Mentor’s LCD is
equivalent to a positive pressure reading on the
monitor screen).
For example, apply a negative pressure of 100
mmHg to the transducer so the Mentor LCD
reads -100 mmHg. Now check that the signal
displayed on the monitor screen reads 100
mmHg. If it is slightly above or below 100
mmHg, adjust the gain control of the monitor
to move the signal tracing to the 100 mmHg
position.
6. After any adjustments of the gain control,
re-check the zero reference line. Compare the
readings displayed on the Mentor and the
monitor screen. If the measurements are the
same, the system is calibrated correctly. If not,
zero the monitor and repeat steps 5 and 6.
PRECAUTION: If, after following these
calibration verification procedures, the pressure
readings on the monitor screen and the Mentor
LCD are not the same and greater than the sum
of the accuracy specifications of both the
transducer and the monitor, start the trouble-
shooting procedures outlined in Section IV.
7. Disconnect the Mentor from the physiological
pressure monitoring set-up prior to measuring
patient pressures. Also check that the fluid lines
are thoroughly flushed and debubbled prior to
measuring the patient’s physiological pressures.
••••••••• SECTION III •••••••••
VERIFYING THE CALIBRATION WHEN USING
MORE THAN ONE TRANSDUCER
If more than one transducer is to be used
simultaneously in a procedure, calibration
should be verified simultaneously. To
accomplish this, connect all transducers to the
Mentor’s Transducer Test Port luer fitting by
“piggy-backing” one transducer to another or
by using a manifold. This will ensure that all
transducers sense the same pressure at the
same time. Follow the steps (depending on
transducer type) as outlined in Sections I or II for
calibrating transducers.
••••••••• SECTION IV •••••••••
TROUBLESHOOTING TRANSDUCERS,
MERITRANS REUSABLE CABLES AND
MONITORING SYSTEMS
In the event that the pressure measurements
differ by more than the sum of the accuracy
specifications of both the Mentor and the
monitor, the Mentor can be used to determine
the source of the problem whether it be a
faulty cable, the monitor or the transducer.
When the transducer pressure readings on the
monitor screen differ from the Mentor LCD by
more than the sum of the accuracy
specifications of both the Mentor and the
monitor, check the Meritrans Reusable Cable to
isolate the source of the problem:
WARNING: Remove Meritrans Reusable Cable
from the Cable Test Connector after completing
this test.
1. Plug the Meritrans Reusable Cable into the
Cable Test Connector found on the left side of
the Mentor housing.
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