S
ETUP AND
/
OR
O
PERATING
C
ONSIDERATIONS
10A63-2.
5
D
UAL
DC V
OLTAGE
C
ARD
10A63-2
Thus, to calibrate a 10A63-2-based Channel No. “x,” you need only turn ON the system
EEPROM SWITCH and then apply the following
SCALING FACTOR (EMM)
command:
EMM x = m [CR]
where “m” equals the full-scale range corresponding to the channel’s present TYPE
designation, expressed to the precision desired for the channel’s data readings.
Channel “type” codes and associated full-scale ranges are given in Table 1, above. If,
for example, a voltage-measuring 10A63-2 channel is “typed” as “6A” (corresponding
to a full scale of ±50 V-DC) and you want the channel to read tenths of a volt, you
would enter an “m” value of “50.0.”
NOTE: The accuracy of “absolute” calibration of a 10A63-2-based channel is limited to
±1.5% of full scale.
T
WO
-P
OINT
(D
EADWEIGHT
) C
ALIBRATION
Using the standard
ZERO (ZRO)
and
FORCE (FRC)
commands, this conventional
“zero and span” method can be applied to a 10A63-2 channel if the received voltage
input is an analog of another parameter which has one or more independently and
accurately known calibration values. It can also be used to improve the ABSOLUTE
calibration of an input that measures voltage itself (beyond the 10A63-2 card’s inher-
ent limit of ±1.5% of full scale). The mainframe’s
EEPROM Write Protect Switch
must
be ON for the
ZRO
and
FRC
commands to be effective. See Manual Section 1.G.5 for
a general discussion of this calibration technique.
Summary of Contents for System 10
Page 31: ...GETTING YOUR SYSTEM 10 ON THE AIR SB 2 FOR A SIZED MAINFRAMES...
Page 67: ...GETTING YOUR SYSTEM 10 ON THE AIR SB 2 FOR B SIZED MAINFRAMES...
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