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Optidew User's Manual
3.3
Transmitter Version
The Optidew can also be ordered as a transmitter version without a touch-screen display.
This unit comes with a single button and multi-color LED indicator which displays the
current instrument status.
The indicator changes color and pulse depending on the instrument status
Initialization
DCC
DCC Plus
Optics balance
Searching for dewpoint
Searching for dewpoint - Optics
contaminated
Optics contaminated & Process alarm off
Optics contaminated & Process alarm on
Measuring
Measuring & Process alarm on
MaxCool
Standby
Standby – Optics contaminated
System Fault
Pressing the button has two different effects, depending on the mode that the instrument
is in:
In DCC or DCC Plus mode – pressing the button returns to standby
In all other modes - pressing the button initiates manual DCC
3.3.1
Optics Calibration
After power is applied the LED indicator on the front of the instrument will turn white
for the first 5 seconds. Pressing the button during this phase will initiate an optics
calibration. The indicator will flash indicating the button-press has been registered.
Kahn Instruments
Meaning
LED Color
White
Blue
Flashing Blue (Fast)
Flashing Blue
Flashing Green
Flashing Magenta
Magenta
Flashing Red/Magenta
Green
Flashing Red
Blue
Flashing Yellow
Flashing Yellow/Magenta
Red
OPERATION
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