Endress+Hauser Mycom S CPM 153 Operating Instructions Manual page 79

Mycom S CPM 153
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Endress+Hauser
6.5.18 Calibration
Note!
The defaults for the on-site calibration are set in the menu
"PARAM" "Set up 1"
The calibration can be protected with the maintenance and the specialist codes. No
calibration can be carried out at the display level (compare with page 34).
Procedure:
1. Move assembly to service position (when a rectractable assembly is used).
2. Remove electrode.
3. Clean electrode before calibration.
Note!
• Note the necessary preparatory work for calibration (page 90, pH and page 91,
redox)
• For measurements with PML (potential matching), the PM line must be immersed in
the calibration solution.
• If automatic temperature compensation is selected for calibration (ATC), the corres-
ponding temperature sensor must also be immersed in the calibration solution.
• The instrument switches automatically to Hold (factory setting) whenever it is calibra-
ted.
• Cancel calibration by pressing the "MEAS" key.
Cancel Calib.
no
yes, Cancel Calib. yes,
The following section describes the calibration procedures for:
pH calibration
Redox absolute calibration
Redox relative calibration
"Calibration" (s. page 80 for pH / page 82 for redox).
• If you confirm this with "yes, cancel cal.", you return to the
measurement mode.
• If you select "no", calibration is continued.
"Manual data entry" (s. page 80)
"Manual calibration with buffer" (s. page 80)
"Calibration with fixed buffer" (s. page 80)
"Calibration with automatic
buffer recognition" (s. page 80)
"Absolute data entry" (s. page 82)
"Absolute calibration" (s. page 83)
"Absolute data entry" (s. page 84)
"Relative data entry" (s. page 86)
"Absolute calibration" (s. page 85)
"Relative calibration" (s. page 87)
"50 % turnover point" (s. page 88)
6 Start-up
79