Table 4-2 Zero (Standardization) Calibration Procedure - Honeywell DirectLine DL421 User Manual

Calibration Procedures
ATTENTION:
CAL2 must be done within 10 minutes of CAL1, otherwise CAL1 must be repeated to enable CAL2.
ATTENTION:
In Table 4-2 and Table 4-3, under the Press column:
• Hold means to hold the button down until the display changes.
• Momentarily means to press and release the indicated button.
Step Operation
1 Enter Zero
(Standardization)
Calibration
2A Do Sample (Manual)
Calibration
Edit Buffer Value
Save New Buffer
Value
OR
2B Do Auto Buffer
Recognition
Calibration
Edit Group Buffer
Value
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Table 4-2 Zero (Standardization) Calibration Procedure

Press
1
Hold
1
Momentarily
or
Momentarily
MODE
Momentarily
1
Hold
or
Momentarily
DirectLine® DL421 Sensor Module User Manual
Display
CAL1
For Sample (Manual) calibration, go to step 2A.
OR
For Auto Buffer Recognition calibration, go to
step 2B.
SCAL for one second,
then displays Live Buffer Value.
To edit Buffer Value (Flashing Display)
Buffer Value is saved and goes to Online Display.
ACAL for one second,
then displays closest Group Buffer Value.
(Flashing Display until stable reading is achieved
"New Value" – Selects ± 1 buffer group
(Flashing Display until stable reading is achieved)
then goes to Online Display.
Calibration
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