Pressure Calibration - Thermo Scientific 48i Instruction Manual

Pressure Calibration

Calibrate Pressure Zero
Thermo Fisher Scientific
RANGE MODE SELECT:
CURRENTLY:
SET TO:
RANGE AVG
The Pressure Calibration submenu is used to calibrate the pressure sensor
to zero, span, or restore factory default values. The pressure calibration is
visible only when the instrument is in service mode. For more information
on the service mode, see
The pressure sensor's zero counts and span slope are displayed on the
menu.
Note This adjustment should only be performed by an instrument service
technician. ▲
In the Main Menu, choose Service > Pressure Calibration.
●
PRESSURE SENSOR CAL:
>ZERO
SPAN
SET DEFAULTS
RANGE AVG
The Calibrate Pressure Zero screen calibrates the pressure sensor at zero
pressure.
Note A vacuum pump must be connected to the pressure sensor before
performing the zero calibration.
Note Wait at least 30 seconds for the reading to stabilize before saving the
value. ▲
In the Main Menu, choose Service > Pressure Calibration > Zero.
●
SINGLE
DUAL ?

CHANGE VALUE
SAVE VALUE
DIAGS ALARM
"Service Mode" earlier in this chapter.
200
1.2200
DIAGS ALARM
▲
Operation
Service Menu
Model 48i Instruction Manual 3-79