130-0047 Issue 8
and antimony, some of which are toxic and/or mutagenic. If the
contents of the sensors come into contact with the skin or other
parts of the body, the affected area should be washed with copious
amounts of water and medical advice sought.
As the sensors contain some toxic compounds, they must be
disposed of according to local waste management requirements
and environmental legislation, irrespective of their physical
condition. They must not be burnt as they will evolve toxic fumes.
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6.0 SPARES AND REPAIRS
6.1 Ordering parts
The replacement sensor is the only user serviceable part.
All other parts are designed for a MTBF of 100,000 hours.
Should any failure occur, the instrument should be returned
to Hitech Instruments Ltd or their local representative for
repair. When ordering spare sensors or raising queries on
the instrument, it is important that the serial number or job
number, is quoted. These numbers are found on the data
label on the right-hand side of the instrument.
6.2 Storage of measuring sensor
The oxygen sensors type N and L have a maximum storage
life of 6 months if the full usable life is to be realised. Each
sensor is dated in manufacture and "storage" starts from
that time. The first two digits give the month and the
second two the year. i.e. 1086 is October 1986. Ideally the
sensor should be stored in a refrigerator and the seal over
the sample connector should be intact and undamaged. It
is advisable, when the projected replacement date can be
anticipated, to order a new sensor from Hitech or their
agents one month prior to this date. This ensures that a
fresh sensor is available at replacement time.
Page 18 of 18
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