Clean The Housing And The Sensor Guard; Clean The Sensors - HYDROLAB HL Serie Manual De Usuario

Maintenance
Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the
document.
Personal injury hazard. Because of pressure buildup inside of the instrument, removable parts can
disengage with force when removed. Loosen and remove the parts slowly. Point the parts away from
people and wear the appropriate protective equipment during maintenance or service activities.
Do not disassemble the instrument for maintenance without authorization from the manufacturer. If the internal
components must be cleaned or repaired, contact the manufacturer.
Keep the instrument in a location where the sensors will not freeze or sensor damage will occur.

Clean the housing and the sensor guard

To prevent damage to some sensors and the instrument, do not use solvents that dissolve plastic to clean the
housing and sensor guard.
At regular intervals, examine the instrument housing and sensor guard. Clean the housing and
sensor guard as necessary to remove unwanted material and deposits.
1. Remove the sensor guard from the instrument.
2. Pour a minimum of 2.5 cm (1 in.) of pH 4 buffer or clean tap water into the storage/calibration
cup.
3. Install the storage/calibration cup on the instrument.
4. Clean the housing and sensor guard with:
• Mild detergent
• Non-toxic, degreasing solution, such as Simple Green
Makers, Inc.)
• Warm water
• Clean, soft toothbrush
• Soft cloth and/or cotton swabs
If necessary, soak the sensor guard and/or housing in water for at least 30 minutes to make the
contaminants soft and easier to remove.
5. Rinse the housing and sensor guard with clean water.

Clean the sensors

At regular intervals, examine the sensors for unwanted material, deposits (inorganic and biological)
and damage. Clean the sensors if unwanted material is found. In addition, clean the sensors if
sensor performance has degraded. Refer to the sensor documentation for cleaning instructions.
Replace any damaged parts. Replace any parts with fouling (sedimentary and/or biological) that
affects performance and cannot be removed. Refer to the sensor documentation for maintenance
instructions.
C A U T I O N
C A U T I O N
N O T I C E
N O T I C E
N O T I C E
®
(A registered trademark of Sunshine
English 19