barfield DC400, User Instruction

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61-101-00802.EF2 (REV. G) CH. 2
January 7, 2015 Page 3 of 44
CHAPTER 2 OPERATION
1. SYSTEM INSULATION TEST
Note: Refer to PRECAUTIONS and PRELIMINARY sections (Chapter 1).
Note: This test may be performed with either wet or dry tanks.
A.
Aircraft Preparation
(1) Disconnect the aircraft battery.
Caution: When lowering or raising pilot fuel panel, insure aircraft
battery is disconnected.
(2) Access the indicator.
(3) Open the circuit breakers.
Caution: When breaking or making indicator connections, insure that
the applicable circuit breaker(s) are open.
(4) Disconnect the aircraft wiring plug at the indicator.
B. Test Set Preparation
(1) Set the ON/OFF switch to OFF.
(2) Rotate the TEST FUNCTION switch to IND AMP.
(3) Set the INSULATION/SYSTEM switch to INSULATION.
(4) Rotate the INS TEST POINTS switch to LO-Z/GND.
(5) Set the AUX/MAIN switch to MAIN/TOT.