Emerson Rosemount 702 - 7 Safety shower and eye wash monitoring

7 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
™
, an Emerson
company. These kits are ordered as a part of the Rosemount 702 model
code, or separately as an accessory kit, 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:
• Two TopWorx GO
™
Switch magnetic proximity switches
• Two cables, one six foot and one twelve foot
• Two black polymer cable glands
• Mounting kit for safety shower and eye wash
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 Rosemount
702 Transmitter senses that switch closure. This switch state is then
transmitted by the Rosemount 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.
Figure 7-1: TopWorx Switch Installed on a Safety Shower
Quick Start Guide April 2021
40 Emerson.com/Rosemount