Calibrate Flow Zero - Thermo Scientific 42i Instruction Manual

Calibrate Flow Zero

Calibrate Flow Span
Thermo Fisher Scientific
only when the instrument is in service mode. For more information on the
service mode, see "Service
Note This adjustment should only be performed by an instrument service
technician. ▲
In the Main Menu, choose Service > Flow Calibration.
●
FLOW SENSOR CAL:
>ZERO
SPAN
SET DEFAULTS
RANGE AVG
The Calibrate Flow Zero screen calibrates the flow sensor at zero flow.
Note The pump must be disconnected 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 > Flow Calibration > Zero.
●
CALIBRATE FLOW ZERO:
CURRENTLY:
SET TO:
DISCONNECT PUMP AND

SAVE CURRENT FLOW
RANGE AVG
The Calibrate Flow Span screen allows the user to view and set the flow
sensor calibration span point.
Note An independent flow sensor is required to read the flow, then the
operator enters the flow value on this screen to perform the calibration.
Mode" earlier in the chapter.
200
1.0000
DIAGS ALARM
0.004 LPM
0.000 LPM ?
DIAGS ALARM
Operation
Service Menu
▲
Model 42i Instruction Manual 3-79