Model OUM980 with OUSAF21 Inline Sensor
Commissioning
33
5.3.9.4
Lamp Switch
Use this function to switch lamp on and off.
Note!
Lamp alarm relay status will be affected.
5.3.9.5
Optical Check
When the
Easycal
TM
is used in conjunction with an initial liquid standard calibration procedure, the
Easycal
TM
can be deemed a
secondary standard for routine system checking. Calibration can be traced to the controlled standard used to verify the original
calibration solutions or process samples and can therefore satisfy validation procedures. During initial calibration of a
sensor/analyzer pair, liquid standards should be used to calibrate the full-scale response of the system. After calibration, by filling
the sensor with water and ensuring the analyzer reads zero, a value for the
Easycal
TM
can be obtained by setting the
Easycal
TM
in
the ‘ON’ position (see Fig 5.2) and note the analyzer display reading. At any time in the future, setting the
Easycal
TM
‘ON’ position
the instrument will display the the same value when the sample cell is filled with clear water.
Note!
All analyzers must be re-calibrated with liquid standards if there are any changes made to the optical chain, including replacement
of seals or lamp.
5.3.9.6
Password Protection
OUM980 support the password function to protect the analyzer from unauthorized operation.
Figure 5.3: Password protection level
