barfield DC400, User Instruction

Page: 26 / 58

61-101-00802.EF2 (REV. G) CH. 2
January 7, 2015 Page 12 of 44
3. SYSTEM CAPACITANCE TEST
Note: Refer to PRECAUTIONS and PRELIMINARY sections (Chapter 1).
A. Aircraft Preparation
(1) Disconnect aircraft battery.
Caution: When lowering or raising pilot fuel panel, insure aircraft
battery is disconnected.
(2) Access the indicator.
(3) Open the circuit breakers.
(4) Disconnect the aircraft wiring plug located at the indicator.
B. Test Set Preparation
(1) Set the test set ON/OFF switch to OFF.
(2) Rotate the TEST FUNCTION switch to PROBE(S).
(3) Set the INSULATION/SYSTEM switch to SYSTEM.
(4) Set the MAIN/TOT-AUX/NAC switch to MAIN/TOT.
(5) Set the 200 (pF)/1000 (pF) switch to 200 (pF) if empty, or 1000 (pF) if
FULL.
C. Connecting Test Set
(1) Connect the test set as shown in Figures 5 and 6.
Figure 5 System Capacitance Test Connector Setup