2.7
Description
The Rosemount 936 comprises two main units:
•
Ultraviolet source
•
Detector
The Rosemount 936 detects gases over an open path transmitted from the source to the
detector.
2.7.1
Ultraviolet (UV) source unit
The UV source unit emits radiation pulses at the rate of one pulse per second.
The pulse width (5 to 10 µsec) is very powerful. The front of the source unit has an internal
reflector that collimates the UV beam for maximum intensity. The front window is heated
to improve performance in icing, condensation, and snow conditions.
Figure 2-1: UV Source
A. Weather shield
B. Front window section
C. Label
D. Main housing
E. Mounting plate
F. Junction box
G. Indicator light-emitting diode (LED)
H. Earth terminal
I. Cable inlet
J. Front window
Reference Manual
Technical description
00809-0100-4036
October 2021
Rosemount 936
17
Содержание Rosemount 936
Страница 1: ...Reference Manual 00809 0100 4036 Rev AD October 2021 Rosemount 936 Toxic Open Path Gas Detector ...
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Страница 8: ...Product overview Reference Manual October 2021 00809 0100 4036 8 Emerson com Rosemount ...
Страница 24: ...Operating modes Reference Manual October 2021 00809 0100 4036 24 Emerson com Rosemount ...
Страница 30: ...Specifications Reference Manual October 2021 00809 0100 4036 30 Emerson com Rosemount ...
Страница 50: ...Installation Reference Manual October 2021 00809 0100 4036 50 Emerson com Rosemount ...
Страница 68: ...Wiring configurations Reference Manual October 2021 00809 0100 4036 68 Emerson com Rosemount ...
Страница 72: ...Support Reference Manual October 2021 00809 0100 4036 72 Emerson com Rosemount ...
Страница 74: ...Short range model Reference Manual October 2021 00809 0100 4036 74 Emerson com Rosemount ...