![background image](http://html1.mh-extra.com/html/teledyne/7300a/7300a_operating-instructions-manual_1080463059.webp)
Infrared Gas Analyzer
Operation 4
4-23
Teledyne Analytical Instruments
the number. Holding down the key speeds up the incrementing or
decrementing.
•
After the number (value) has been choosed, use Enter to move
the desired parameter. Then use the UP/DOWN keys to change
the parameter.
•
Once the parameters for alarm have been set, Enter the alarm
function again, and repeat this procedure for next alarm.
•
To reset a latched alarm, go to
Dft
and then use either UP two
times or DOWN two times. (Toggle it to
Y
and then back to
N.
)
–OR –
Go to
Ltch
and then use either UP two times or DOWN two
times. (Toggle it to
N
and back to
Y.
)
4.6
The
Range Select Function
The
Range
function allows you to manually select the concentration range
of analysis (
MANUAL
), or to select automatic range switching (
AUTO
).
In the
MANUAL
screen, you are further allowed to define the high and low
(concentration) limits of each Range, and select a single, fixed range to run.
CAUTION: If this is a linearized application, the new range must
be within the limits previously programmed using the
System function, if linearization is to apply through-
out the range. Furthermore, if the limits are too small
a part (approx 10 % or less) of the originally linear-
ized range, the linearization will be compromised.
In the
AUTO
screen, you are further allowed to select which gas application
(PREVIOUSLY defined in
APPLICATION
function) to run.
4.6.1 Manual (Select/Define Range) Screen
The Manual range-switching mode allows you to select a single, fixed
analysis range. It then allows you to redefine the upper and lower limits, for the
range.
Use UP/DOWN key to start the RANGE function, and ENTER
Select range
mode: MANUAL
Summary of Contents for 7300A
Page 4: ...iv Model 7300A Teledyne Analytical Instruments ...
Page 12: ...1 4 1 Introduction Model 7300A Teledyne Analytical Instruments ...
Page 26: ...2 Installation Model 7300A 2 14 Teledyne Analytical Instruments ...
Page 36: ...3 Start up and Theory of Operation Model 7300A 3 10 Teledyne Analytical Instruments ...
Page 80: ...5 Maintenance Model 7300A 5 10 Teledyne Analytical Instruments ...