Manual Input Calibration - Thermo Scientific 42i Instruction Manual

Manual Input Calibration

Automatic Input Calibration
Thermo Fisher Scientific
The Manual Input Calibration screen is used to do a manual calibration of
the input board A/D stages per the following procedure:
Note The measurement system and the PMT are both shut off inside this
screen.
1. In the Main Menu, choose Service > Input Board Calibration >
Manual Input Cal.
2. Press
3. Make a note of the frequency at gain of 1.
4. Use
5. Use
the frequency at gain 100 matches or is slightly above the frequency at
gain 1 (within 50 counts).
6. Press
INPUT BOARD CALIBRATION:
 TO CALIBRATE
xxxxxxx** WARNING
xTHIS ACTION MAY
xxRECALIBRATION OF
ENTIRE MEASUREMENT SYSTEM!
RANGE AVG DIAGS ALARM
The Automatic Input Calibration screen is used to do an automatic
calibration of the input board A/D stages. A message will be displayed after
the optimum setting has been determined.
INPUT BOARD CALIBRATION:
>MANUAL INPUT CAL
AUTOMATIC INPUT CAL
INPUT FREQUENCY DISP
RANGE AVG DIAGS ALARM
▲
to leave warning screen.
and to change the gain from 1 to 100.
and to increment or decrement the D/A counts so
to save new input board calibration.
**xxxxxx
REQUIRExx
THEXXXX
GAIN 1 - MANUAL:
FREQ =
D/A =
 CHG GAIN

RANGE AVG DIAGS ALARM
Model 42i Instruction Manual
Operation
Service Menu
4500
N/A ?
 INC/DEC
SAVE VALUES
3-81