Features:
\nConnection:
\nThe RTX1-SDX transmitter links to the SDX-15 Alarm system via 2-core data bus cable.
\nThe transmitter is mounted directly within (or adjacent to) the gas source.
\n4no input signals are wired directly from the plant or manifold, using failsafe logic \u2013 open contact=fault (i.e. NO line monitoring TB4 PCBs).
\nInputs connections comprise a 5-core cable (4no switched conditions and 1no Common).<\/p>\n
Maintenance:
\nTransmitter PCB requires a 230vac supply.
\nAll supply, input and data-bus terminations are via simple 45deg PCB mounted terminals.<\/p>\n
Application:
\nThe RTX1-SDX is only manufactured for a single gas, as the design is intended for mounting to be directly at the contact source.
\nThus, as input connections will be nearby, these transmitters have no requirement for line monitoring, which simplifies installation and cost.<\/p>\n
The transmitter incorporates a single channel selector switch which determines the transmitted channel for the monitored.<\/p>\n
The RTX1-SDX transmitter receives 4no analogue signals from the plant or manifold where it is installed and then transmits these signals via a 2-core data-bus using Shire Controls own Medcon signal protocol. A single 2-core data-bus can transmit up to 60 status conditions (15no gases, each with up to 4no condition) and channels are determined via hexadecimal (16 way) rotary switches for transmitting (via SDX-15 transmitters) and receiving for display purposes (via SDX-15 Plant Alarms) or for interfacing to others (via SDX Computer Interfaces).<\/p>\n
Monitoring of the data-bus connection is always in operation. The transmitter looks to receive a strobe signal from the designated \u2018Central Panel\u2019 (the 24-hour monitored SDX-15 Plant Alarm), which ensures the system data-bus integrity. Any short-circuit, open-circuit or non-presence of a Central Panel will result in the transmitter giving a visual warning of this system fault via a flashing round red LED.<\/p>\n
As the system is addressable, ALL SDX-15 system equipment (Alarms, Transmitters and Interfaces) can be added\/removed or relocated within the system. This simply requires the 2-core data-bus to be extended from the nearest existing SDX-15 Unit, or tee-ing off from a nearby existing cable run. Use 2-core screened cable (minimum 0.5mm).<\/p>\n
RTX1-SDX PCB LED Indicators:<\/p>\n
Red \u2013 This LED will be OFF if the system is functioning. The LED will flash if any of these occur:
\nThere is a short circuit anywhere on the 2-core data-bus cable.
\nThere is an open-circuit on the 2-core data bus cable between the designated \u2018Central Panel\u2019 and the SDX-RTX Transmitter.
\nThe designated \u2018Central Panel\u2019 has been switched off (i.e. has neither power nor battery back-up operating).
\nThe designated \u2018Central Panel\u2019 has is set-up as a \u2018Repeater\u2019 or the Control PCB has been unplugged.<\/p>\n
Installation requirements:
\nA 230 vac supply, fused at 3 amps, fed from the essential supply
\nA 2-core screened cable (minimum 0.5mm) to SDX-15 data-bus.
\nA 5-core screened cable from input gas connected.
\nAll screens to be earthed at BOTH ends.<\/p>\n
Equipment Warranty:
\nWarranty: alarms returned to our works which have failed due to faulty parts or manufacture will be repaired (or replaced) without charges for parts and labour.
\n10 year compatibility warranty: Install the SDX Plant Alarm System with the confidence that equipment will be available to modify or extend the system for at least 10 years.<\/p>\n
HTM 02-01 compliant<\/p>\n
Part Numbers:
\nWhen ordering, please specify the following format:<\/p>\n
RTX1 \u00a0\u2013 for Complete Transmitter in A Box<\/p>\n
RTX1plate&pcb \u2013 for RTX1 PCB on mounting plate<\/p>\n
RTX1pcb \u2013 RTX1 PCB Only<\/p>\n
If possible, the hospital in which the alarm is to be installed<\/p>\n","protected":false},"excerpt":{"rendered":"