Initial Setup; Functional And Calibration Check; Ac Power Connection And Indicator; Power-Up Sequence And Self-Tests - Delfi P.T.S. Operator And Maintenance Manual

2.4

INITIAL SETUP

During shipping and storage, the unit's battery could become weak. Prior to initial use, the unit must be
plugged into AC power using the AC power supply and cord assembly until the battery is fully charged. This
initial charge should take no more than 8 hours. The battery must be fully charged before any initial use,
including any calibration checking procedures, initial checks, or tests performed by biomedical engineering at
your facility.
WARNING: Use only the Delfi REF 4-2100-013 AC power supply and cord assembly supplied with your
P.T.S. Do not use any other AC power supply or cord. Use of an improper power supply may cause
irregular operation that could be hazardous to the patient and/or user, and may permanently damage
the P.T.S. unit.
CAUTION: Avoid exposing the AC power supply to liquids. Do not immerse in fluid. Do not allow
the AC power supply to lie on the floor where pooling of liquids may occur. Clean by damp cloth
(alcohol or mild detergent wipe) only. The AC power supply is resistant to occasional splashing or
dripping of fluids, but is not fluid-tight. If immersed in or exposed to excessive amounts of liquids,
the AC power supply may fail and may pose an electrical shock hazard.
WARNING: Use battery packs supplied by Delfi only. Do not use any other batteries. Use of an
improper battery pack may cause irregular operation that could be hazardous to the patient and/or
user, and may permanently damage the P.T.S. unit.
2.5

FUNCTIONAL AND CALIBRATION CHECK

Each P.T.S. unit is fully tested before shipping. However, the following functional and calibration checks
should be performed by the user before the first clinical use of the P.T.S. to ensure that it has not been
damaged in shipping. After charging the battery as described above, the unit shall produce the results
explained in the following steps exactly as indicated. Failure to do so indicates that a problem may exist and
the device is not to be used until necessary repair or calibration has been made.

2.5.1 AC POWER CONNECTION AND INDICATOR:

Connect the AC power plug to a properly polarized and grounded power source with voltage and frequency
characteristics compatible with the specifications listed in Section 2.1. Observe that the green AC power
indicator light turns on.

2.5.2 POWER-UP SEQUENCE AND SELF-TESTS:

Power up the unit by pressing the 'ON/STANDBY' button and observe the following (the P.T.S. may be
plugged in to AC power or not for the remaining tests):
a) All display segments and symbols in the pressure and time display and the message display (as shown in
Figures 2.2 and 2.3) illuminate, the red alarm indicator light illuminates, and the alarm tone sounds for 2
seconds. All displays and tones then shut off for 0.5 seconds, then the cycle repeats. Note that if AC
power is not connected, the green AC power indicator light does not come on at any time, and if AC
power is connected it remains on constantly.
b) The pressure display shows "CAL" for approximately 2 seconds. During this time the unit is self-testing
specific pressure sensing calibration parameters.
c) "0" is displayed for both pressure and time in the pressure and time display after the startup routine is
complete. If numbers other than zero are shown in either display, the unit should be calibrated.

2.5.3 PRESSURE SET POINT ADJUSTMENT:

a) Momentarily press the 'PRESSURE + ' button and release (within 1 second). The pressure display reads
"250* " (the default pressure set point) for 2 seconds. Note that the trailing asterisk indicates that the
pressure displayed is a set point, not the current cuff pressure. The pressure display then returns to "0".
b) Press and hold the 'PRESSURE + ' button. The pressure display should read "250* ", and after 1 second
begin increasing in 5mmHg and then by 10 mmHg increments to the maximum pressure set point of
"475* " mmHg.
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