SECTION 5
SERHT50NA A0808 5-1
INTRODUCTION
This procedure is intended to assist a Newport authorized service
technician to establish a routine verification program to verify proper
operation of the HT50 Ventilator (p/n HT50-H1, HT50-H1-B, HT50-H).
An OVP must be performed each time the ventilator is serviced or a
minimum of once a year.
WARNING Do not use the ventilator if it does not pass the
Oper
ational Verification Procedure.
TEST EQUIPMENT REQUIRED
20 cc syringe with Luer lock
HT50 adult reusable breathing circuit with exhalation valve
500 cc Test Lung (LNG500A with restrictor or LNG800P) that will
function at 90 cmH
2
O/mbar or equivalent
Parabolic resistor Rp50 (p/n RP50)
Cap (CAP100P)
Calibrated manometer or pressure gauge
(range: 0 to 100 cmH
2
O/mbar)
T-connector (p/n TOL200A)
Humidifier bottle and probe (for HT50-H with humidifier)
Vacuum gauge (0-120 mmHg minimum)
Stop watch or equivalent
Caution The accuracy of any test equipment should be
ann
ually certified by a testing laboratory before use. Take
calibration data into account.
NOTE: Make a copy of the Test Record at the end of this section
and check off each test as it is perf
ormed. Enter the software
version number and hours on the test record.
NOTE: Audible alarms will activate periodically while performing
some tests
. You may silence the alarm by pushing the
Silence/Reset button.
NOTE: After every setup parameter change, wait a few breaths to
allo
w the ventilator to stabilize before recording values.
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