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Teledyne Analytical Instruments 51
4.4.14 Analog output Adjustment
The software in this instrument provides a way to enter to manage
the analog output of the analyzer FOR ANALOG CHANNEL 1
ONLY. To access the offset function:
<▲▼> From the MAIN MENU, scroll to the ANALOG
ADJUST function using the UP/DOWN keys.
<Enter> Pressing <Enter> activates the function and takes you to
the next screen.
ANALOG-OUT ADJUST
-----------------------
CH1 Offset: 0
CH1 Gain: 0
CH1 Select: THC
CH2 Select: R-ID
-----------------------
<Enter> Use the <Enter> key to move over to the Offset field.
<▲▼> Use the UP/DOWN keys to change each digits value.
<Enter> Use the <Enter> key to save the value.
<Escape> Use the <Escape> key to revert to the original value.
Use the same procedure to set the gain of the instrument. After the
last digit is entered, the final <Enter> press will accept the gain value.
The values entered do not have explicit units of current or voltage.
Adjustment should be gauged using a voltmeter or current meter
attached to the analog output. When the ANALOG ADJUST menu is
entered the following is displayed:
________________________________________________
-> CH1 mA Offset: 0
CH1 mA Gain: 0
________________________________________________
When the arrow is on the Offset, or when the user presses <Enter> to
modify the offset, the analog output is 4mA plus a value that is
proportionate to the number indicated to the right of 'Offset:' That
number may be modified –500 to 500.
When the arrow is on the Gain, or when the user presses <Enter> to
modify the gain, the output is 20mA scaled by the value to the right of