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Zone Controllers (LD310)

Key Features


up to 300 feet (91 meters) of conductive fluid sensing cable and/or spot detectors, or

up to 210 feet (64 meters) of chemical sensing cable

Visible alarm indicator

Two Form C output relays for leak and fault alarms

Audible and visible alarm notification

Adjustable leak alarm sensitivity thresholds

Configurable for supervised or non-supervised operation

Distinguishes normal conditions from alarm conditions

Quickly returns to normal

Included Equipment: LD310 controller, leader cable, end-of-line (EOL) terminator

Additional Requirements: Power supply WA-DC-5-ST, sensing cable and spot detector (as needed for application)

Power: Requires an isolated power supply.

5VDC Isolated (±10%) @ 100mA max; requires RLE power supply WA-DC-5-ST (not included)


Leak Detection Cable: Compatible with all SeaHawk sensing cables as well as SD-Z and SD-Z1 spot detectors (not included)

One Cable Input: Requires 15ft (4.6m) leader cable and EOL terminator (included)

Maximum Sensing Cable Length: 300ft (91m) of conductive fluid sensing cable, or 210ft (64m) of chemical sensing cable

Detection Response Time: When used with conductive fluid or chemical sensing cables, less than 20sec; 10sec typical.

Outputs: 2 Form C Alarm Relays (leak and fault); 1A @ 24VDC, 0.5A resistive @ 120VAC; configurable as supervised or non-supervised

Alarm Notification

Audible Alarm: 85dB @ 10cm (min)

Visual Alarm: Bi-color LED

Front Panel Interface

Audible Alarm: Indicates cable break or leak detected

LED Indicator:

Normal Operation: Green

Cable Fault: Flashing orange

Leak Detected: Flashing red

Operating Environment

Temperature: 32° to 122°F (0° to 50°C)

Humidity: 5% to 95% RH, non-condensing

Altitude: 15,000ft (4,572m) max.

Storage Environment: -4° to 158°F (-20° to 70°C)

Dimensions: 2.7″W x 4.4″H x 1.38″D (69mmW x 112mmH x 35mmD)

Weight: 3.0 oz. (85.0g)

Mounting: Surface mount

Certifications: CE; ETL listed: conforms to UL 61010-1, EN 61010-1; RoHS compliant