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SC 2000, SC2001, SC3004
DISPLAY. AVERAGE Menu Item
Controls the speed with which the channel's display values will
update. Display averaging does not affect the channel's analog
output or its peak/valley detection, which will proceed at the
speed selected by the "OPERATION -> FREQ. RESPONSE" menu
item. The choices are:
•
"ON" means that the display will update four times each sec-
ond. The channel's values will be averaged for 1/4 second,
then displayed.
•
"OFF" means that the channel's display will update as
quickly as possible.
12.6.3 AUXn FUNCTION Menu Items
The AUX1 FUNCTION and AUX2 FUNCTION menu items determine
what happens when the Auxiliary Function pins (labeled as
"AUX1" and "AUX2") on the channel's connector are activated.
These pins are "activated" when connected to the DGND pin.
The choices are:
•
"DISABLED" means that activating the pin does nothing.
•
"TRACK HOLD" means that the tracking, peak and valley values
will not be updated.
•
"HIGH/LOW HOLD" means that the peak and valley values will
not be updated.
•
"HIGH/LOW CLEAR" means that the peak and valley values are
reset.
•
"TARE ON" activates the channel's Tare function (resets it to
zero).
•
"TARE OFF" deactivates the channel's Tare function.
As the Auxiliary Function pins are not isolated, it is recommended
that a push-button switch or relay is used to connect these pins
to the Digital Ground pin.
12.6.4 CALIBRATION TYPE Menu Item
This chooses the type of calibration technique to be used. There
are two methods that can be used to calibrate the transducer to
the Input Channel. Each has advantages and disadvantages as
described in the table below.
Table 12-2: Comparison of Calibration Types
RECOMMENDED...
...for most applications
...when frequently swapping
transducers
...when best possible accu-
racy required
PROs and CONs
Relative accuracy
Requires actual, calibrated
loads to be applied
CALIBRATION TECHNIQUE
Zero-scale point from...
Full-scale point from...
Linearity correction from...
008-0608-00
Rev. G,
no
yes
yes
no
no
yes
good
best
no
yes
applied load
applied load
transducer
applied load
output when
shunt cal pins
applied
n/a
2-point: none;
3- or 5-point:
applied load
Honeywell Sensing and Control
59
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Troubleshooting
