Enabling the Altimeter Encoder Option
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ADTS 405 R/F Mk2 Instruction Manual-English | 47
4.15 Enabling the Altimeter Encoder Option
a.
Press and hold down
F1
and press
SETUP
to enter the configuration menu. Release
both keys.
b.
Press [MORE], [DISPLAY/OPTIONS], [DISPLAY TYPE], [NEXT], [ENCODER].
c.
Check the display shows “Encoder” is selected.
d.
Press [SAVE], then repeatedly press
CLEAR/QUIT
until the display shows the
following:
Note:
With an incorrect bit combination such as all zeros, the display shows “ENCODER
ERROR” in the place of the decoded value.
20
GND
b
21
GND
b
22
GND
b
23
GND
b
24
GND
b
a. Chassis connection.
b. 0V return for signals (not chassis).
1
Controlled or measured parameter.
2
Aim (set-point or target) in control
mode, or “Leak Measure” when the
pressure controller is off.
3
Measured value.
4
“<” Pointer for parameter, i.e. aim that
changes on data entry.
5
Units of measurement.
6
Altitude encoder bit code.
7
Special messages, e.g. warm-up
period.
8
Altitude encoder decoded value.
Table 4-4: IEEE 488 Connector Pin-out
Pin Number
Function
Alt 5000 ft
Aim 5000<
D2 to C4>00001010010
CODE 5000 WARMUP
1
3
5
7
8
4
2
6
