1 General Safety Information ........................................................................................................................... 3
1.1 General Description .......................................................................................................................................... 3
1.2 List of warnings and Cautions ........................................................................................................................... 3
2 Use Instructions and Limitations .................................................................................................................... 4
2.1 Use For .............................................................................................................................................................. 4
2.2 Do NOT use for .................................................................................................................................................. 4
2.3 Features ............................................................................................................................................................ 5
2.4 Specifications .................................................................................................................................................... 5
3 Installation and Operating Instructions .......................................................................................................... 6
3.1 Location ............................................................................................................................................................ 6
3.2 Installation ........................................................................................................................................................ 6
3.3 Terminal Connections ..................................................................................................................................... 10
4 Operations .................................................................................................................................................. 12
4.1 Power up ......................................................................................................................................................... 12
4.2 LED Indicator ................................................................................................................................................... 12
4.3 Buzzer Silence ................................................................................................................................................. 12
4.4 Internal Dipswitch Function ............................................................................................................................ 12
4.5 Trouble Indicator ............................................................................................................................................ 12
5 Maintenance .............................................................................................................................................. 13
5.1 Cleaning .......................................................................................................................................................... 13
5.2 Sensor Poisons ................................................................................................................................................ 13
6 Testing ....................................................................................................................................................... 14
6.1 Testing ............................................................................................................................................................. 14
6.2 Calibration and Test Kits ................................................................................................................................. 14
6.3 Gas Testing ...................................................................................................................................................... 15
6.4 Field Calibration Procedure............................................................................................................................. 16
7 RV-VRF Communicator ................................................................................................................................ 17
7.1 Programming .................................................................................................................................................. 17
7.2 The Communicator Settings: ........................................................................................................................... 17
7.3 RD-VRF Communicator Menu ......................................................................................................................... 18
7.4 Menu Diagrams ............................................................................................................................................... 19
7.5 Operating Errors.............................................................................................................................................. 21
7.6 Trouble Shooting Errors ................................................................................................................................. 21
8 Modbus and Serial Communications ............................................................................................................ 21
8.1 Default Settings ............................................................................................................................................... 21
8.2 Modbus Registers ........................................................................................................................................... 21
8.3 Warning Code List ........................................................................................................................................... 22
8.4 Status Code List: .............................................................................................................................................. 23
8.5 Error Code List ................................................................................................................................................. 23
8.6 Read Holding Registers ................................................................................................................................... 24
9 Appendix A – Table of Figures ...................................................................................................................... 25
10 Macurco Gas Detection Product limited warranty ........................................................................................ 26
Technical Support Contact Information .................................................................................................................................... 26
General Contact Information ...................................................................................................................................................... 26