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OLCT 200 User Manual |
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Figure 7-2: Catalytic Bead BALANCE & SENSOR VOLTS Adjust Menus
7.3 Set Gain to Unity (Technicians only!)
Set Gain to UNITY
allows resetting previous calibration OFFSET to zero and GAIN to
one. This is the definition of UNITY. A calibration should be performed after setting
UNITY.
Figure 7-3: Set UNITY GAIN Menu
7.4 PreAmp Gain Adjust (Technicians only!)
Depending upon
Input Type
, OLCT 200 inputs range from a few micro amps to
hundreds of micro amps.
PreAmp Gain Set
is the adjustment that matches the input
signal range to the OLCT 200 input signal conditioning circuits. Altering the PreAmp
Gain setting automatically resets previous calibration OFFSET & GAIN values to
UNITY as described in section 7.3.
If it is determined the PreAmp Gain value is incorrect, apply the desired up-scale input
and use the UP / DOWN keys to obtain the correct
Reading
value.
Counts
are the
10-bit binary A/D value with an active range value of 0 - 1023.
CAUTION:
For standard installations, this is a factory adjustment. Do not use the
PreAmp Gain Set
menu for calibrating sensors. It should only be adjusted if a new
measurement gas or input range is required.
Figure 7-4: PreAmp Gain Adjust (PGA) Menu
* * * * * WA R N I N G* * * * *
P r e v i o u s C a l i b r a t i o n
w i l l b e e r a s e d .
E D I T t o c o n f i r m.
N E X T t o e x i t .
Ga i n = U n i t y
EDIT
P GA S e t u p
Ga i n 2 5 . 0 %
C o u n t s 10 11
R e a d i n g 10 0
U p / D n t o C h a n g e .
N e x t t o e x i t .
Summary of Contents for OLCT 200
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Page 14: ...OLCT 200 User Manual 14 Figure 2 3a Outline Drawing OLCT 200 Wired Models...
Page 19: ...OLCT 200 User Manual 19 2 6 2 Installation Drawing 11 0100...
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Page 38: ...OLCT 200 User Manual 38 Figure 4 1 Calibration Gas Input...
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