Patol LDM-621-DDLX Digital Linear Heat Controller with 10km Distance Locator
£791.72 (inc VAT: £950.06)
Summary
The LDM-621-DDLX Digital Linear Heat Detection Cable Interface is a sophisticated monitoring unit designed to detect fire conditions and fault statuses in Non-Resettable Digital Linear Heat Detection Cables (LHDC).
Featuring a four-digit LCD display, the unit provides precise distance measurements to the alarm point within a monitored zone. Capable of accommodating LHDC lengths up to 10 km, the LDM-621-DDLX can be configured for two-wire operation, emulating conventional smoke and heat detectors. This allows seamless integration with fire control panels via trigger circuits or addressable interface modules.
Additionally, the unit offers volt-free relay contacts and a 4-20mA output for fire and fault signalling when powered separately. Its DIN rail modular housing ensures easy installation in various enclosures, making it ideal for multi-zone control panels.
Features
- 4mA to 20mA instrumentation current loop output
- Fault monitoring for open circuit conditions
- LED indication of fire, fault, and supply status
- Test and reset push buttons
- Volt free contact outputs for fire and fault conditions
- DIN rail mounting
Specifications
- Supply Voltage: 14 – 30Vdc (Two Wire Mode), 20 – 30Vdc (Relay Mode)
- Current – Normal: <2mA (Two Wire Mode), <12mA (Relay Mode)
- Current – Fire: <12mA (Two Wire Mode), <29mA (Relay Mode)
- Current – Fault: <700µA (LDM-621-DDLX-G approx.1.5mA)
- Display: 4 Digit LCD, 0 to 9999, Character Height: 8.5mm
- Unit Accuracy: +/- 1%
- LHDC Tolerance: +/- 3%
- Relay Contacts: Fire – changeover – 2 sets, Fault – changeover – 2 sets, 1A @ 24Vdc / 120Vac
- Environment: 0-60°C @ 95% max Humidity
- LHDC Resistance: Nominal 0.18 Ω /m
Downloads
- Manual (Adobe PDF)
Additional information
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