Hach-Lange HQD - Luminescent Dissolved Oxygen Probe LDO - Manual (Page 8)

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To remove the shroud
1. Unscrew the locking ring.
2. Slide the shroud and locking ring off the probe.
To install the shroud
1. Place the locking ring on the probe body with the threads toward the sensor cap.
2. Slide the shroud on the probe until it is seated in the locking groove (rugged) or ribs
(standard). Slide the standard probe shroud on the standard probe until the inside
locking ridges align halfway between the ribs on the probe. Rotate slightly until the
shroud is seated (
Figure 3 ).
3. Firmly tighten the locking ring onto the shroud.
To clean the probe
• Gently clean the sensor cap with a mild detergent, water and a soft cloth or cotton
swab. Do not remove the black colored substrate from the sensor cap.
• If water is present between the sensor cap and lens, remove the cap and blot dry the
sensor cap and lens with a soft dry cloth. Install the sensor cap.
Advanced operation
Parameter-specific settings can be changed through the Full Access Options menu.
Details about menu navigation, available options and how to change them are given in the
screens, tables and procedures throughout this section.
The settings that can be changed are shown in Table 1 .
.
Table 1Parameter-specific settings
Setting Options Description
Measurement options
• Resolution
• Measurement limits
• Salinity correction
• Pressure units
• Averaging interval
• Defines measurement resolution
• Upper and lower measurement limits
• Value for salinity correction
• Atmospheric pressure units
• How often the meter calculates an
average readings
Units
• mg/L
• %
• Primary unit of measurement