Ashcroft GC51, Инструкция по установке и обслуживанию

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12. ZERO ADJUSTMENT MODE
When in Measurement Mode the zero reading can be adjusted. To adjust
the zero reading be sure the pressure connection port (or the system to
which it is connected) is open to atmosphere and hold the UP
$ button for
more than 3 seconds. This is not to be used for scaling of the output, refer
to Section 11.2 and 11.3 for scaling function.
• If the zero point adjustment is performed correctly the message “AdJ” will be
displayed for 2 seconds, and the display will return to the measurement mode.
• If zero point adjustment has been attempted when the pressure is outside
of ±10%F.S. the error message “E-0” will be displayed for 2 seconds, and
the display will return to the measurement mode without completing the
zero point adjustment.
It is important to perform the zero adjustment when the user is certain that
the device is at atmospheric pressure otherwise an offset may be intro-
duced which will impact the accuracy of the device.
–5%F.S. or less 105%F.S. or more
105.0 .....
005.0
Normal
message
Error
message
• Span Over
display
AdJ e-0
13.
KEY LOCK
Function Key Manual Indicator
Setting of key lock MODE+
$
one second LoC (Key invalidity)
Release of key lock MODE+
$
one second UnL (Key invalidity)
Operation during keylock
Function Key Manual Indicator
Zero adjust. mode
$
key greater than 3 sec. LoC (Key invalidity)
Hold value reset
#
key greater than 3 sec. LoC (Key invalidity)
Setting mode M key greater than 3 sec. LoC (Key invalidity)
Peak indicator
$
one push Peak indicator
Bottom indicator
#
one push Bottom indicator