RTK Instruments Series 725 Alarm Annunciator
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Modular construction from 1 to > 256 alarm channelsMulti-redundant design so there is no single point of failure Choice of window sizes Available in six colours withconventional filament lamps or removable LED assembliesEach channel programmable from the front Low cost RS485 bi-directional Communications option Panel or 19" rack mounting orfully integrated into wall mounting or floor standing enclosures >

Serial Communication Bi-directional RS485 communication is available as a low-cost option. This can be used to receive alarm information from or transmit to third party equipment. Each alarm channel can be configured to accept alarm inputs from the standard alarm contact or via the communications. The communications can be used to create systems linking two or more Annunciators together as repeat or grouped displays. Sleep Mode Increasingly Alarm Annunciators are used in applications where the primary supply is produced from batteries, typically substations, which are not permanently...

Connections All connections are made to the rear of the unit, using two part screw terminals capable of taking 2.5mm Auxiliary Relays Each alarm way can be supplied with an individual repeat relay. Each relay can be programmed to be energised or de-energised on alarm and both normally open and normally closed contacts are available on customer terminals. The repeat relays can be set to follow the alarm logic, follow the field contact or follow the display. CE Marked > Designed within the stringentrequirements of the European EMC andLVD directives ensures that the Annunciatior conforms to...

Three Horn Relay Outputs (Option 3HN) Rack Mounting RS485 Serial Communications (Option COM) Adjustable Response Time (Option AD*) It is possible to change the operation of the common relays to have three horn relays and a single group relay rather thantwo of each. With this option the methodof programming of the relays remains the same but their operation is altered slightly. The Annunciators can be supplied pre- mounted in standard 19" aluminium mounting plates. A maximum of 7 cells will fit across a 19" front plate. If specified at the time of ordering each channel can be supplied with...

WITH FIRST OUT FLASHINGAND RESET PUSHBUTTON > PROCESSSEQUENCEVISUALAUDIBLE NormalNormalOff Silent > resetwhilenormal acknowledge toabnormal PROCESSSEQUENCEVISUALAUDIBLE NormalNormalOffSilent > first outreset whilenormalreturn to normal first out resetwhile abnormal acknowledgewhile normalsubsequentto abnormalfirst outresetacknowledgewhile abnormal first toabnormal acknowledge PROCESSSEQUENCEVISUALAUDIBLE Abnormal > or Normal > PROCESSSEQUENCEVISUALAUDIBLE Abnormal > or Normal AcknowledgedOnSilent AlarmFlashingAudible > PROCESSSEQUENCEVISUALAUDIBLE Abnormal > or NormalSubsequent Alarm Fast...

1 Critical Audible 2 Non-critical Audible Audible 3 Critical Group 3kHz peizoelectric buzzer at 90dB 30cm. 4 Non-critical Group > 5 Special Function Relay > Communications (Optional) The inputs are all bipolar so can acceptAC or DC voltages. Repeat Relays RS485 2 or 4 wire, Modbus, ASCII or Modbus RTU protocol user selectable. Master and Slave configurations. Supports bi-directional communications Ethernet Modbus TCP/IP. Alarm Management software. Other protocols available on request. Supply Voltage 24VDC Nominal (19-28VDC) Isolation Each alarm way can have individual repeat relays....