Ametek Land CDA, Руководство пользователя

Страница: 21 / 24

Page 15
User Guide Thermometer
CDA
6 Mounting and Accessories
6.1 Recommendations
The CDA thermometer is compatible with all Land System 4 thermometer
mountings and accessories.
For the majority if incinerator and furnace applications, the following package
of accessories is recommended (see Fig. 2):
Air Purge: Land Part No. 091.561
Jacket: Land Part No. 091.560
Back Cap: Land Part No. 091.562
For further information detailing the CDA thermometer mountings and
accessories, cross-refer to the System 4 Thermometer Mountings and
Accessories Installation Guide.
6.2 Sighting Tubes
It is normal to use a “sighting tube” to penetrate the incinerator wall. The
thermometer jacket is then bolted to a flange at the rear of this tube. Land
Instruments supply a short tube (type FS6 - length 150mm, internal diameter
54mm) but it is recommended that a longer tube be fabricated to suit the
particular installation.
It is important that the sighting tube is of sufficient internal diameter to
avoid “clipping” the sight path of the thermometer. Fig 6 gives recommended
minimum diameters. The tube length should be minimised, consistent with
standing the thermometer jacket clear of the outer wall of the incinerator.