1811D INSTRUCTION MANUAL
56-101-00164 Rev. F
INTRO
Apr / 19 / 13
Page 2 of 38
B. Each new or re-certified unit is delivered with a Certificate that shows the date when the
unit was tested by the manufacturer, its serial number, and when the next certification is
due. This certificate confirms that the unit performed according to its design
specifications.
3. RECERTIFICATION
The Test Sets P/N 101-00184 and P/N 101-00185 have a 6-month recertification period
when analog instruments are installed. However, when digital instruments are installed the
recertification period is typically one year. For complete specifications on digital
instruments, refer to documents 61-101-02184 and 61-101-02194.
It is strongly recommended that the manufacturer, Barfield Inc., service the Test Set. This
will ensure that all applicable engineering change orders are incorporated during the
required maintenance or recertification processes, which are to be done following Barfield-
approved procedures. Additionally, at this time only Barfield technicians are qualified to
service the digital instruments.
Note: It is important that the customer ensures the Test Set is in compliance with the
Recertification requirement.
Note: If the Test Set is to be used in compliance with F.A.R. 91.170 and Part 43, Appendix
E, "Altimeter System Tests and Inspections," refer to FAA Advisory Circular AC43-6B
(or subsequent) for approved inspection intervals and procedures.