SECTION 6
SERHT50NA A0808 6-1
SECTION 6
INTRODUCTION
The HT50 ventilator requires routine maintenance for best
performance and technical maintenance every 10,000 hours. It is
recommended that the primary internal battery be replaced every
12 months. If the primary internal battery is used to LOW
BATTERY alarm level on a routine basis, the battery life will be
shortened. It is recommended that the secondary internal battery
be replaced every 24 months. If the dual internal battery no longer
meets the time requirements of the user, it should be replaced.
NOTE: When 10,000 hours has elapsed, the HT50’s Message
Displa
y Window will indicate “Service Needed” after the next power
up.
WARNING After every technical maintenance, the Calibration
and Oper
ational Verification Procedure (Section 5) must be
performed successfully before returning the HT50 to patient use.
WARNING Lethal voltages are present inside the ventilator. To
pre
vent electrical shock, use extreme caution when working on
the ventilator with the front or bottom cover panel opened.
When preparing to return service replacement parts clearly identify
them as such, and return them to N
EWPORT with the following
information:
• Date
• Ventilator serial number
• Contact name
• Organization name
• Organization address
• Reason for replacement
• Copy of completed OVP test record (Section 5)
Follow the shipping instructions detailed in Section 10 of this
manual.
Contact NEWPORT Tech. Service for more information. Tel.
714.427.5811, ext. 500 or fax 714.427.0572.
TOOLS REQUIRED
Computer with PCS download program
Download cable P/N V23-00001-29
#10 Torx screwdriver
Philips head screwdriver
7/64" Allen wrench
Torque screwdriver (for #10 torx & 7/64" allen)
NOTE: All allen head and #10 torx screws are tightened to 12
inch/lbs
.
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