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The Multi-Zone Leak Detector application and panel (P/N 851-4074 or 851-4550) is a refrigerant leak detection system for monitoring refrigerant leaks in walk-in boxes, rack houses and machine rooms.
Up to six (6) separate spaces (zones) can be monitored for refrigerant leaks with one panel. The system uses infrared-sensing technology to determine the concentration of refrigerant and reports this back to the main panel via analog signal wiring.
The Visograph display is the interface to the leak panel, displaying the Parts Per Million (PPM), and programming for the zones. One leak detector can be connected in each detection zone.
The Multi-Zone Leak Detector application is fully integrated with the E2E, has relay outputs for third-party devices, or can operate fully independent as a stand-alone device. The communication with E2E can use either Modbus RTU or BACnet MS/TP protocol.
Each zone is capable of operating an audible and visible alarm based on user-defined alarm and spill setpoints.
In addition, each zone has the ability to trigger a circuit shutdown in the event of a spill.
The 851-4550 Leak Detector Panel with DC powered gas detectors has a slightly different leak detector control board than the 851-4074 panel. The 851-4550 panel has a DC control board that is colored red for easy identification from its green AC counterpart in the 851-4074 panel.
Part Number: 851-4550
