Safety Shower And Eye Wash Monitoring - Emerson Rosemount 702DX22 Reference Manual

Section 7: Mounting, Wiring Switches and Output
Circuits, Models 702DX32 and 702DX42
February 2013
Figure 7-13. Wiring an Interposing Relay to Switch Greater Currents or Voltages
7.3.4

Safety shower and eye wash monitoring

The Rosemount 702 transmitter can be used to monitor safety showers and eye wash stations
by using switch kits provided by TopWorx
part of the Rosemount 702 model code and are available for both insulated and un-insulated
pipes. These kits contain the switches, brackets and cables that are necessary to install the
Rosemount 702 to monitor both the safety shower and the eye wash in a single station. Because
each has two input channels, one Rosemount 702 transmitter can be used to monitor both a
safety shower and an eye wash.
Each Safety Shower Monitoring kit contains:
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Safety shower monitoring
When the shower valve is activated (valve open) by pulling down on the handle, the TopWorx
switch is activated (closed switch) and the 702 transmitter senses that switch closure. This
switch state is then transmitted by the 702 transmitter to the Gateway, which then sends that
information to the control host or alert system. When the shower valve is closed, the switch
remains in the activated state until it is reset by a technician. The switch can be re-set only by
placing a ferrous metal object on the far side of the sensing area of the switch.
72
Two TopWorx Go Switch magnetic proximity switches
Two cables, one six foot and one 12 foot
Two black polymer cable glands
Mounting kit for safety shower and eye wash
™
, an Emerson company. These kits are ordered as a
Mounting, Wiring Switches, and Output Circuits:
Models 702DX32 and 702DX42
Reference Manual
00809-0200-4702, Rev CA