Sample Sequencer
Operation
OPERATION
Description of Controls
Figure 6 and Table 1 describe controls on the Sample Sequencer membrane switch display.
Table 1 - Control and Display Descriptions
DESCRIPTION
FUNCTION
Sample Point switches 1-8 with
light annunciators
Pushing the switches turns the sample point on and off. The adjacent
light turns on when the point is on. The light blinks on and off when the
point is in alarm. When the point is on, the respective sample (when
sample switching) or cell signal (when sensor switching) will be
analyzed in sequence.
Sample names
The removable name tag allows the sample name to be typed and
displayed through the clear pocket on the membrane switch. The
nametag is accessed by removing the front display plate.
Sample point display
Indicates the sample point number corresponding to the value in the
display function window.
Display function display window Indicates the value of the current function (indicated by the display
function light which is on).
Display function lights
Indicates which function (CYCLE TIME, DELAY TIME, DWELL TIME,
ANALOG mA, LOW ALARM, HIGH ALARM or STATION NUMBER) is
currently being displayed.
Control switches
These tactile feedback switches control the displays, reset alarms and
start or restart the Sample Sequencer. The DISPLAY, NEXT and
ALARM RESET keys serve a different purpose when programming
(see below).
Programming switch & arrows
Activates the programming mode to program new values for all display
functions except ANALOG mA. For example, new values for CYCLE
TIME or LOW ALARMS can be programmed. The arrows light up
when the programming mode is activated. The control switches
immediately above the arrows control the digit position and value when
programming. For example, the DISPLAY switch becomes the "up
arrow" function to increase the function display digit value when
programming.
Analyzer system alarm light
When lit, indicates an analyzer system alarm.
SENTRY
Equipment Corp • P. O. Box 127 • Oconomowoc, WI 53066 • 262/567-7256 • FAX: 262/567-4523
Web: www.sentry-equip.com • e-mail: [email protected]
17