TM 11-4920-292-15
Figure 9-20. Remote magnetic compensator (part
No. 2586257-1) controls.
trol until the EXC VOLTS meter indicates 23.5
Record the E1 VOLTS control settings on line
volts.
F-7 of the swing data sheet.
(c) Record the ERROR readout indi-
(i) Set the E1 CHECK-E2 CHECK
cation as monitor zero error on line F-1 of the
switch to E2 CHECK.
swing data sheet.
(j) Adjust the E2 VOLTS control until
(d) Determine the MISAL switch set-
the NULL INDICATOR meter indicates a null.
tings from the equation given in section F of
Record the E2 VOLTS control settings on line
the swing data sheet. Record on line F-2 and
F-8 of the swing data sheet.
set the MISAL MINUTES and polarity switches
(k) Set the E1 CHECK-E2 CHECK
to this value.
switch to OFF.
(e) Be sure that E1 CHECK, E2
(3) Determine one-cycle and index errors
CHECK, ∆180 MINUTES, and ∆270 MIN-
as follows:
UTES controls and polarity settings have not
(a) Set the control console switches as
been changed from those recorded on lines
follows:
C-3, C-4, D-3, and D-4 of the swing data sheet.
1. MODE SELECTOR: IND.
Record these values on lines F-3 through F-6
2. READOUT SELECT: 0.
of the swing data sheet.
(b) Adjust the remote magnetic com-
pensator N-S compensator control to obtain 0
(e) Set the E1 CHECK-E2 CHECK
switch to E1 CHECK.
heading on the digital controller.
(c) Set the HEADING SELECTOR
(g) Set the READOUT SELECT switch
to 90.
switch to 180 DEGREES.
(h) Adjust the E1 VOLTS controls until
(d) Adjust the remote magnetic com-
the NULL INDICATOR meter indicates a null.
pensator N-S compensator control to remove
9-25
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