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AirScan iR - Industrial
Pushbutton Operation, LED Indicators,
Adjustment Pots, and Test Points
The Manning AirScanTMiR has two internal push-
buttons, and two adjustment pots that are utilized
for navigation of test functions, calibrations, and
operating modes. In addition, a pair of test points is
also provided that assist in the connection to standard
meter leads for use in the upcoming calibration and
diagnostic procedures (see Figure 4).
Figure 4. Board Component Layout
•
8
• "Zero" adjustment pot — adjusts output calibration
of the 4 mA nominal resting point.
• "Span" adjustment pot — adjusts the 20 mA
concentration level or unit span/sensitivity.
• Pushbutton S1 — used to initiate the auto-zero
function, program the 4 mA output calibration, and
initiate the 4/20 mA loop test.
• Pushbutton S2 — used to program the span setting.
• est(+) and Test(—) for connection to a DC Volt meter
(see Figure 4, Note 2).
IMPORTANT: The pushbutton(s) must be pressed the
correct number of times and at the correct rate.
• When a multi-press sequence must be performed,
the button must be pressed rapidly and evenly,
lifting one's finger completely from the actuator for
each consecutive press.
• For press and hold activations, one's finger must
always be applying a down pressure without
disruption for the specified time in order to activate
the desired mode.
• See complete details of each operation in other
parts of the manual.
The AirScanTMiR also has a group of LED's (see
Figure 5) that blink in specific sequences (see Figure
6 on next page) to indicate sensor operation and
programming modes. A summary of sensor operation
and programming modes with corresponding LED
blink sequences is shown in Figure 7 on page 10.
Figure 5. LED Layout
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