Operation
Service Menu
Thermo Fisher Scientific
Model 15
i
Instruction Manual
3-79
ANALOG INPUT CAL: ZERO
DISCONNECT SELECTED INPUT!
SELECTED INPUT: INPUT 1
CURRENTLY: 0.04 V
CALIBRATE INPUT TO ZERO
RANGE AVG DIAGS ALARM
The Analog Input Calibrate Full-Scale screen allows the user to calibrate
the full-scale state of the selected analog input.
●
In the Main Menu, choose Service > Analog Input Cal > select Channel
>
Calibrate Full Scale
. (Hook up a voltage source of 10 V to the
analog input channel.)
ANALOG INPUT CAL: SPAN
PROVIDE VOLTAGE TO INPUT!
SELECTED INPUT: INPUT 1
CURRENTLY: 9.84 V
SET TO: 10.0
0
V
CALIBRATE TO VALUE
RANGE AVG DIAGS ALARM
The Dilution Ratio screen allows the user to view and set the dilution ratio.
Acceptable values are 1–500: 1. The default is 1:1. When this value is set,
the dilution ratio is applied to all concentration measurements. This screen
is only accessible if the dilution ratio option is installed and when the
instrument is in service mode. For more information on the service mode,
see “
Service Mode
” earlier in this chapter.
●
In the Main Menu, choose Service >
Dilution Ratio
.
DILUTION RATIO:
CURRENTLY: 001.0 :1
SET TO: 00
2
.0 :1 ?
§¨
MOVE CURSOR
©ª
CHANGE VALUE
SAVE
RANGE AVG DIAGS ALARM
The Display Pixel Test screen is used to test the LCD display, by toggling
between all pixels on and all pixels off to ensure that they are functioning
properly. The display pixel test screen is visible only when the instrument is
Analog Input Calibrate
Full-Scale
Dilution Ratio
Display Pixel Test