CLIMET INSTRUMENTS CI-90A, Руководство оператора

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CI-90A User’s Manual
Page 15
display the message “FLOW FAILURE AT:” followed by the current date/time. An audible
alert consisting of ten long beeps will notify the user of the alarm condition. The specified
number (ERRLBS) of labels with Sample Status marked
INVALID will be printed.
Furthermore, the red alarm LED will continue flashing. After the user has recorded any relevant
information, the CI-90A must be turned off and then back on to resume normal operation.
To enable the flow alarm, the user must first enter the setup menu, if not already there, and
then use the up/down arrows as necessary to scroll to the ENABLE FLOW ALARM field. The
user can toggle this option on or off (Y or N) by using the left/right arrows.
If the flow alarm is not enabled (N), the unit will still go into flow alarm if the flow drops
below approximately 70 LPM for 3 consecutive seconds. This serves as a preventive measure to
very inaccurate sampling.
2.2.6 Secure setup?
The Secure Setup feature of the CI-90A allows the user to lock out the [
MORE
] key. This
prevents change of settings, unit ID, or user. The user can still, however, alter the site and main
screen third line display. The key label “MORE” will not be visible, and pressing the [
MORE
]
key will not have any effect.
When Secure Setup is in effect, the sample volumes available will be limited to those stored in
the list of Site IDs.
When the CI-90A is powered up with Secure Setup enabled, the screen below will appear.
This screen allows the user 7 seconds to bypass security by pressing a special key. This key is
the far right menu key under the screen. If this is pressed prior to the countdown number in the
lower right corner reaching zero, then security is bypassed and the [MORE] key becomes visible
and functional. It is important to note that the only way to cancel Secure Setup is to press the
special key during the 7-second screen, then at some point entering the setup screen. Upon
pressing the [SETUP] key, the firmware will automatically change the Secure Setup setting to
‘N’. If the user intends to retain Secure Setup, he must remember to change the setting back to
‘Y’. The fact that the user entered the SETUP screen is interpreted by the firmware as intent to
alter the setup, thus spoiling the security of the previous setup. This is why it automatically
cancels the Secure Setup.
ENABLE FLOW ALARM? Y
SECURE SETUP? N
SECURE SAMPLE? N
EXIT
Secure setup active.
Press correct key
within countdown to
access settings. 7
SECURE SETUP? N
SECURE SAMPLE? N
DATE FORMAT MM/DD/YY
EXIT