Figure 2 Sensor cartridge removal
2.3 Calibration
Chemical exposure hazard. Obey laboratory safety procedures and wear all of the personal protective
equipment appropriate to the chemicals that are handled. Refer to the current safety data sheets
(MSDS/SDS) for safety protocols.
Chemical exposure hazard. Dispose of chemicals and wastes in accordance with local, regional and
national regulations.
Calibrate the sensors before initial use. At regular intervals, do a calibration check to make sure that
measurements stay within the tolerance range. Calibrate the sensors if measurements are out of the
tolerance range. The deionized (DI) water steps must be done for an accurate calibration.
Refer to the Hydrolab Operating Software Manual for instructions on how to do the tasks that follow:
• Start a sensor calibration.
• Start a sensor calibration check.
• Set the calibration mode.
• Select the measurement units shown during calibration and calibration checks.
• Look at the calibration history.
To look at the Hydrolab Operating Software Manual, start the Hydrolab Operating Software, click
Help and select Hydrolab Operating Software Help.
When a calibration or a calibration check is started, the step-by-step instructions for the sensor show
on the display.
2.4 Sensor guidelines
Keep deposits off the sensor for best measurements. Examine the sensor to make sure that there
are no contaminants. Keep the substances shown in
Substance
Oil, sediment or biofilms
6 English
C A U T I O N
C A U T I O N
Table 1 Contaminants
Damage
Contaminates the sensor. If the sensor is contaminated, clean the sensor.
Table 1
away from the sensor.