Det-Tronics PIRECL Manuals

Instructions 95-8526 Infrared Hydrocarbon Gas Detector PointWatch Eclipse® Model PIRECL 13.1 Rev.10/12 95-8526 application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 opERation oVERViEW . . . . . . . . . . . . . . . . . . . . . . 1 theory of operation . . . . . . . . . . . . . . . . . . . . . . . 1 Detectable Gases . . . . . . . . . . . . . . . . . . . . . . . . . 2 outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Data logging capability . . . . . . . . . . . . . . . . . . . . 2 optional third party addressable Modules . . . . . 2 SpEcificationS . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 iMpoRtant SafEty notES . . . . . . . . . . . . . . . . . . 5 inStallation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 identification of flammable Vapor(s) to be Detected . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 identification of Detector Mounting locations . . . 6 physical installation Requirements . . . . . . . . . . . 6 24 Vdc power Supply Requirements . . . . . . . . . . 7 Wiring cable Requirements . . . . . . . . . . . . . . . . . 7 power Wiring Size and Maximum length . . . . . . . 7 optional Relays . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Wiring procedure . . . . . . . . . . . . . . . . . . . . . . . . . 8 Remote calibration Wiring . . . . . . . . . . . . . . . . . . 8 DEScRiption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 internal Magnetic Switch . . . . . . . . . . . . . . . . . . 14 HaRt communication . . . . . . . . . . . . . . . . . . . . 14 Multicolor lED . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Weather Baffle assembly . . . . . . . . . . . . . . . . . . 15 clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 History logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Remote calibration option . . . . . . . . . . . . . . . . . 16 Special applications . . . . . . . . . . . . . . . . . . . . . . 16 opERation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 factory Default Settings . . . . . . . . . . . . . . . . . . . 18 operating Modes . . . . . . . . . . . . . . . . . . . . . . . . 18 4-20 ma current loop output . . . . . . . . . . . . . . 18 fault indication . . . . . . . . . . . . . . . . . . . . . . . . . . 19 StaRtup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 piREcl Start-up/commissioning checklists . . . 20 caliBRation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 calibration overview . . . . . . . . . . . . . . . . . . . . . 21 additional calibration notes . . . . . . . . . . . . . . . . 21 calibration initiation . . . . . . . . . . . . . . . . . . . . . . 22 Detailed calibration procedure using Magnetic Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 time out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 calibration abort . . . . . . . . . . . . . . . . . . . . . . . . 23 MaintEnancE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Routine inspection . . . . . . . . . . . . . . . . . . . . . . . 24 Weather Baffle cleaning . . . . . . . . . . . . . . . . . . 24 optics cleaning . . . . . . . . . . . . . . . . . . . . . . . . . 24 o-Ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 protective caps and covers . . . . . . . . . . . . . . . . 24 tRouBlESHootinG . . . . . . . . . . . . . . . . . . . . . . . 25 DEVicE REpaiR anD REtuRn . . . . . . . . . . . . . . . 25 oRDERinG infoRMation . . . . . . . . . . . . . . . . . . 26 pointWatch Eclipse Detector . . . . . . . . . . . . . . . 26 calibration Equipment . . . . . . . . . . . . . . . . . . . . 26 Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 appEnDix a — fM appRoVal DEScRiption . . . . a-1 appEnDix B — cSa appRoVal DEScRiption . . . B-1 appEnDix c — atEx appRoVal DEScRiption . . c-1 appEnDix D — iEcEx appRoVal DEScRiption D-1 appEnDix E — otHER appRoValS . . . . . . . . . . . . E-1 appEnDix f — HaRt coMMunication . . . . . . . . . f-1 appEnDix G — MoDBuS coMMunication . . . . .G-1 appEnDix H — E Q pREMiER MoDEl . . . . . . . . . . . H-1 appEnDix i — WaRRanty . . . . . . . . . . . . . . . . . . . . .i-1 appEnDix J — contRol DRaWinG . . . . . . . . . . . . J-1 Table of Contents Important Be sure to read and understand the entire instruction manual before installing or operating the gas detection system. This product is intended to provide early warning of the presence of a flammable or explosive gas mixture. Proper device installation, operation, and maintenance is required to ensure safe and effective operation. If this equipment is used in a manner not specified in this manual, safety protection may be impaired. application The Pointwatch Eclipse® Model PIRECL is a diffusion- based, point-type infrared gas detector that provides continuous monitoring of combustible hydrocarbon gas concentrations in the range of 0 to 100% LFL. Three basic configurations are available: •� 4-20 mA output with HART communication protocol and RS-485 MODBUS communications. •� 4-20 mA output with HART communication protocol and RS-485 MODBUS communications, with two alarm relays and one fault relay. •� Eagle Quantum Premier (EQP) compatible version (no analog or relay outputs). All units are powered from 24 volts DC, and are furnished with an onboard "status indication" LED, an internal magnetic calibration switch and an external calibration line for use with the optional PIRTB remote calibration termination box. The Pointwatch Eclipse is ideal for use in harsh outdoor environments and is certified for use in Class I, Division 1, and Zone 1 hazardous areas. It can be used as a stand-alone detector, or as part of a larger facility protection system using other Det-Tronics equipment such as the FlexVu® UD10 Universal Display Unit, the U9500H Infiniti Transmitter, the R8471H Controller, or the Eagle Quantum Premier Fire and Gas Detection/ Releasing System. opERation ovERviEw theory of operation Flammable hydrocarbon gases diffuse through the weather baffle assembly into the internal measurement chamber, which is illuminated by an infrared (IR) source. As the IR passes through the gas within the chamber, certain IR wavelengths are absorbed by the gas, while other IR wavelengths are not. The amount of IR absorption is determined by the concentration of the hydrocarbon gas. A pair of optical detectors and associated electronics measure the absorption. The change in intensity of the absorbed light (active signal) is measured relative to the intensity of light at a non- absorbed wavelength (reference signal). See Figure 1. The microprocessor computes the gas concentration and converts the value into a 4 to 20 milliampere current output or digital process variable signal, which is then communicated to external control and annunciation systems. inStrUCtionS Infrared Hydrocarbon Gas Detector PointWatch Eclipse® Model PIRECL 13.1 ©Detector electronics Corporation 2012 Rev: 10/12 95-8526