System description
2
Operating Instructions Radiation sensors R3XX
1.2 Sensor versions
The radiation sensors are delivered both in a compact form, with a built-in
measuring amplifier (Thermophil
®
INFRAsmart), and in a two-part form, with
a small radiation sensor and a separate measuring amplifier (Thermophil
®
INFRAht). In this case, the radiation sensors and measuring amplifiers are
connected using a heat-resistant cable. The measuring amplifiers available
are types TR 40-10 (in a die-cast aluminium housing) and TR 41-10 (in a
plastic housing, with a display and keypad).
In order to protect the sensor against dust, vapours and other environmental
influences, its measurement opening is sealed with a solid disc or lens. It
can be cleaned without difficulty if it is steamed up or damaged. In the case
of a highly polluted atmosphere it is a good idea to use an air nozzle (see
accessories), which will largely keep the measurement opening clear by
continuously cleaning the air. For the event that the sensor is used at fairly
high ambient temperatures, special cooling jackets with a cooling water
connection are available.
Thermophil
®
INFRAsmart
Type R300 Sensor with cone 1.7:1, fitted measuring amplifier in IP 65
stainless steel housing
Type R301 Sensor with lens 20:1, fitted measuring amplifier in IP 65
stainless steel housing
Type R302 Sensor with lens 33:1, fitted measuring amplifier in IP 65
stainless steel housing
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