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This symbol indicates that the marked item requires a protective earth connection. If the instrument is
not supplied with a ground plug on a cord, make the protective earth connection to the protective
conductor terminal.
Electrical equipment marked with this symbol may not be disposed of in European domestic or public
disposal systems. Return old or end-of-life equipment to the manufacturer for disposal at no charge to
the user.
4.1.3 Icons used in illustrations
Manufacturer
User supplied
supplied parts
4.1.4 Chemical and biological safety
Chemical or biological hazards. If this instrument is used to monitor a treatment process and/or
chemical feed system for which there are regulatory limits and monitoring requirements related to
public health, public safety, food or beverage manufacture or processing, it is the responsibility of the
user of this instrument to know and abide by any applicable regulation and to have sufficient and
appropriate mechanisms in place for compliance with applicable regulations in the event of
malfunction of the instrument.
4.1.5 Ozone precautions
Ozone inhalation hazard. This instrument produces ozone that is contained within the equipment,
specifically within the internal plumbing. The ozone could be released under fault conditions.
It is recommended to plumb the exhaust gas port to a fume hood or to the building exterior in
accordance with local, regional and national requirements.
Exposure to even low concentrations of ozone can damage delicate nasal, bronchial and pulmonary
membrane. In sufficient concentration, ozone can cause headaches, coughing, eye, nose and throat
irritation. Immediately, move the victim to uncontaminated air and seek first aid.
The type and harshness of symptoms are based on the concentration and exposure time (n). Ozone
poisoning includes one or more of the symptoms that follow.
• Irritation or burning of the eyes, nose or throat
• Lassitude
• Frontal headache
• Sensation of sub-sternal pressure
• Constriction or oppression
• Acid taste in mouth
• Asthma
In case of more severe ozone poisoning, the symptoms can include dyspnea, cough, choking
sensation, tachycardia, vertigo, lowering of blood pressure, cramping, chest pain, and generalized
body pain. Ozone can cause a pulmonary oedema one or more hours after exposure.
Look
parts
C A U T I O N
Do steps in
reverse order
D A N G E R
Use fingers only
Use two people
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