Patol, 63-1301 [700-471], LDM-519-DDLX Digital I/F with Distance Display

Patol, 63-1301 [700-471], LDM-519-DDLX Digital Interface with Distance Display - 10km

The module is designed to monitor a length of Digital Linear Heat Detection Cable (LHDC) for both fire condition and fault status (open circuit).

The unit is designed such that it may be configured to operate in a two wire mode that emulates the operation of
conventional heat detectors. The unit may therefore be directly interfaced with fire control panels by connection to fire zone trigger circuits or addressable interfaces.

The DDLX has a 4digit LCD which activates on fire condition and displays the distance into the zone the alarm has
occurred. Digital LHDC may be employed in lengths up to 10km (9999m). The unit has an adjustment to accommodate interposing cables.

Signalling of fire and fault status by means of VFC may be realised when a separate supply is employed. A 4mA to 20mA instrumentation current loop output is provided for connection to PLC’s etc.

Key Features:

• Display of Alarm Location: Distance in metres
• Fault monitoring of LHDC for open circuit conditions
• LED indication of Fire, Fault and Supply status.
• Test & Reset functions
• Operable from two wire fire panel conventional circuits. Line / Low Power
• Analogue address loop interfacable - Loop Powered configurable
• 4 to 20 mA instrumentation current loop output
• LHDC Hazardous Area use by means of intrinsically Safe Barriers
• VFC outputs for Fire & Fault conditions - Selectable
• Din Rail mounting

Specifications:

• Dimensions (WHD): 105mm x 86mm x 58mm
• Display: Four Digit LCD 0 - 9999m
• Character Height: 8.5mm
• Unit Accuracy: +/- 1% (+/- 1 digit)
• LHDC Tolerance: +/- 3%
• Lock Time: 3s
• Voltage: 14 - 30 VDC (2 wire mode) 20 - 30 VDC (relay mode), > 10 VDC - Latched Fire, < 6 VDC - Reset
• Current Normal: < 1.5 mA (2 wire mode) *, < 11 mA (with fault relay) * Plus user defined monitoring circuit
• Current Fire: < 13 mA (2 wire mode)**, < 22 mA (with fire relay)***, < 29 mA (with both relays)***, ** Plus user defined Fire (trigger) load., *** Plus 4 to 20 mA loop current if used.
• Current Fault: < 700µA
• Relay Contact: 1 A @ 24 VDC / 120 VAC