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However, Computer Process Controls, Inc. assumes no responsibility for any inaccuracies that may be contained herein. In no event will Computer Process Controls, Inc. be liable for any direct, indirect, special, incidental, or consequential damages resulting from any defect or omission in this manual, even if advised of the possibility of such damages. In the interest of continued product development, Computer Process Controls, Inc. reserves the right to make improvements to this manual, and the products described herein, at any time without notice or obligation. Computer Process Controls, Inc. products may be covered by one or more of the following Computer Process Controls U.S. patents: 6360553, 6449968, 6378315, 6502409, 6779918, and Computer Process Controls Australian patent No. 775,199 November 4, 2004. FCC COMPLIANCE NOTICE This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Table Of Contents 1 OVERVIEW ................................................................................................................................................................... 1 1.1 SPECIFICATIONS............................................................................................................................................................. 1 1.2 MRLDS MODELS .......................................................................................................................................................... 1 1.3 POWERING THE MRLDS............................................................................................................................................... 1 2 CHOOSING A MOUNTING LOCATION ................................................................................................................. 2 2.1 MOUNTING THE SENSOR ............................................................................................................................................... 2 2.2 MRLDS DIMENSIONS.................................................................................................................................................... 3 3 MRLDS ANALOG VERSION (809-100X).................................................................................................................. 3 3.1 NETWORK LAYOUT ....................................................................................................................................................... 3 3.2 MRLDS WIRING ........................................................................................................................................................... 3 3.3 REFRIGERANT JUMPER SETTINGS .................................................................................................................................. 4 3.4 CONTROLLER SETUP FOR ANALOG MRLDS ................................................................................................................ 4 4 MRLDS MODBUS VERSION (809-101X).................................................................................................................. 5 4.1 NETWORK LAYOUT ....................................................................................................................................................... 5 4.2 MRLDS SETUP.............................................................................................................................................................. 5 4.3 MRLDS GATEWAY ....................................................................................................................................................... 7 4.4 CONTROLLER SETUP FOR MODBUS MRLDS .............................................................................................................. 11 5 DIAGNOSTICS............................................................................................................................................................ 14 5.1 MRLDS LED INDICATORS ......................................................................................................................................... 14 5.2 E2 ALARMING ............................................................................................................................................................. 14 MRLDS I&O Manual Table of Contents • v Overview CPC specs a modular refrigerant leak detection sensor (MRLDS) that continuously monitors for low levels of refrigerants most commonly used in commercial refrigeration systems. The MRLDS communicates with the E2 controller via a Gateway board connected to the RS485 I/O Network, or via the analog input on a MultiFlex board. 1.1 Specifications 1.2 MRLDS Models Part Number Description 809-1000 Voltage Out w/o de-icer* 809-1001 Voltage Out w/ de-icer* 809-1010 Modbus w/o de-i...