Ultrasound Technologies Fetatrack 310, Service Manual

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Performance Checks
Fetatrack310 Service Manual Issue3 Page 25
©Ultrasound Technologies Ltd, Lodge Way, Portskewett, Caldicot, South Wales NP26 5PS, United Kingdom.
T +44 (0) 1291 425425 F: +44 (0) 1291 427093 E: ultratec@doppler.co.uk W:
www.doppler.co.uk
Ultrasound Technologies Ltd
Introduction
The following sections details tests to ensure that the FETATRACK 310 is
operating within specification. These tests may be performed in whole or part,
however, if any repairs are carried out to the power supply circuits then it is
recommended that the whole test/calibration procedure is undertaken.
The test procedures may be performed without removal of the circuit board
from the unit.
Performance Checks
The following procedure is intended to provide a means of determining the
functional status of the unit. It should be included as part of a preventive
maintenance plan and should be performed on a regular basis.
1) Plug the monitor line cord into a grounded receptacle of suitable line
voltage and frequency as indicated on the rear panel of the FETATRACK 310 .
2) Turn monitor on. The green front panel LED will illuminate.
3) The display will first show the system selftest followed by the software
revision This indicates the instrument is switched on and awaiting inputs.
4) Load chart paper to recorder (for assistance see operating instructions)
ensure paper is correctly aligned.
5) Depress printer on/off and recorder will run at either 1,2 or 3 cm/min dependent
on the user preset value.
Ultrasound
6) Connect ultrasound transducer to the yellow or blue US sockets on the front
panel and increase volume to maximum.
7) Place transducer in palm of hand and gently stroke the back of the hand at a
constant rate of about 2 times a second.
8) Check audio volume is present, digital display will display the simulated rate
(approx 120 ) and correspond with the data being printed on the chart paper.
UA / Toco / Contractions
9) Connect the toco transducer to the grey UA input socket on the front panel and
press UA zero to set the baseline (baseline resets to value 1 -> 20 as selected in
set up procedure).
10) Apply pressure onto the centre of transducer and check that the toco trace
on chart recording increases to 100 + 10%. Remove load and trace will return to
baseline.