Thermo 48i - Page 129

Operation
Service Menu
Thermo Electron Corporation Model 48i Instruction Manual 3-107
Calibrate Flow Zero The Calibrate Flow Zero screen calibrates the flow sensor at zero flow.
Note The pump must be disconnected before performing the zero
calibration. 
• In the Main Menu, choose Service > Flow Calibration > Zero.
• Press to save the current flow reading as the zero reading.
• Press to return to the Flow Calibration menu or to return
to the Run screen.
Calibrate Flow Span The Calibrate Flow Span screen allows the user to view and set the flow
sensor calibrate span point.
XXLO WCONCENTRATIONXXLO W
CO 15.80 PPM
SAMPLE 12:34 ALARMX
FLOW SENSOR CAL:
>ZERO 200
SPAN 1.0000
SET DEFAULTS
RANGE AVG DIAGS ALARM
XXLO WCONCENTRATIONXXLO W
CO 15.80 PPM
SAMPLE 12:34 ALARMX
CALIBRATE FLOW ZERO:
CURRENTLY: 0.000 LPM
SET TO: 0.000 LPM ?
DISCONNECT PUMP AND


 SAVE ZERO PRESSURE
RANGE AVG DIAGS ALARM