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Summary of Contents for Sierra DCR1-CS1
- Page 1 Installation Manual DCR1-CS1 DCR1-CT1 FLAME DETECTOR MODELS Sierra Safety Technology, Inc. (775) 782-7946 www.SierraSafety.com ...
- Page 3 Installation Manual Sierra Safety Technology, Inc. (775) 782-7946 www.SierraSafety.com DCR1-CS1 & DCR1-CT1 Flame Detector Models APPLICABILITY & EFFECTIVITY This manual provides information for the follow products: Model Highlights DCR1-CS1: N.O. or N.C. Fire and Fault Relays. Latching Controls. DCR1-CT1: N.O.
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Page 5: Table Of Contents
Table of Contents 1 PRODUCT DESCRIPTION ..................... 1 Introduction ........................1 Configuration ....................... 1 Scope .......................... 1 Description ........................1 Fault Diagnostics ......................2 2 OPERATION ........................... 2 General ........................2 Field-of-View ........................ 2 Range .......................... 3 Environment......................... 3 Configuration Settings ....................3 LED Operation, Detector Modes &... -
Page 7: Product Description
“device(s)”, “DCR1” and/or “DCR1-C” all refer collectively to the various models listed in Table 1-1 Model Configurations. Devices may also be referred to by only their extension with the “DCR1” name excluded, for example “-CS1” instead of “DCR1-CS1.” 1.4 Description All DCR1 detectors specified in this manual are calibrated to respond to a 4-inch Isopropyl Alcohol (IPA) fire at 12 feet on axis within 3 seconds and have a clear 120°... -
Page 8: Fault Diagnostics
Installation Manual against a wide variety of acids and solvents, thereby making it an excellent choice for use in semiconductor manufacturing tools and interior spaces of production and cleaning equipment. In addition, all models of the DCR1 are approved for installation in Class 1 Division 2 Groups A, B, C, D T4 hazardous locations, such as gas cabinets. -
Page 9: Range
Installation Manual 2.3 Range The range of the DCR1 is a function of the degree of obstruction, presence of spurious energy sources, type of fire, position of the fire, fire size and rate of fire growth. As illustrated in Figure 2-1, the response is affected by the angle at which the fire is located from the face of the detector. - Page 10 The first flash pattern indicates the model type. LED 1 will illuminate while LED 2 flashes one time to identify that it is a DCR1-CS1 device. For -CT1 detectors, LED 2 will flash two times rather than one time. Once complete, both LEDs will turn off.
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Page 11: Outputs
Installation Manual the LEDs. If the fault condition is corrected the next highest fault will be indicated until all faults are cured. Please note that although Fire Mode is designed to override a fault indication, some faults, such as “Program Failure” may prevent the reporting of a fire. FireScape™... -
Page 12: Installation
Installation Manual 3 INSTALLATION 3.1 General Precautions All wiring and installation should be done in accordance with the NFPA 70 and 72 standards and must comply with any codes specific to the application or location. Contact the local authority having jurisdiction and, if applicable, the company safety engineer, for information on codes which may apply. - Page 13 Installation Manual entering the detector housing may result in damage to the detector and is not covered under factory warranty. 3.3.1 Power Power to the DCR1 detector is supplied via the Red and Black wires at the end of the cable.
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Page 14: Testing
Installation Manual between N.O. and Common contacts. When a fault occurs, the condition of the relay is reversed. This means the Fault Relay reports a fault state if the detector loses power. Table 3-3 Color Codes for Fault Relay Wire Color Fault Relay Function White Common... -
Page 15: Maintenance
Installation Manual 3.4.3 Handheld Test Source Testing Prior to using a factory approved handheld test source, it is important to check that the battery is installed correctly and producing enough power to ensure proper operation and maximum performance. In addition, a factory approved handheld UV detector (see “Accessories”... -
Page 16: Troubleshooting
Installation Manual 5 TROUBLESHOOTING If a problem is detected during installation or if the DCR1 enters Fault Mode (see Section 2.6.4), the following procedures are recommended. If the actions listed below do not correct the problem, contact your distributor for further diagnostic instructions or to obtain an authorization to return the detector for evaluation. -
Page 17: Detector Goes Into Alarm But No Fire Appears To Be Present
Installation Manual 5.2.4 Fault Type 4 – “Low Voltage Fault” The input voltage does not meet the minimum device specification. Measure the voltage between the Red and Black wires and verify the voltage is within the input voltage range (see Section 6.) If the voltage is inadequate, check the external wiring and power supply. -
Page 18: Specifications
Installation Manual 6 SPECIFICATIONS Sensitivity at 12 Feet on 3 Seconds or Less Axis to a 4-Inch Diameter IPA Fire: Test Fuels: Heptane, Hydrogen, Silane, MEK, Polypropylene and Isopropyl Alcohol Chemical Compatibility: Resistant to Most Acids and Solvents Field-of-View: 120° Full Cone (NFPA) Sensor Responsivity: Ultraviolet: 185 to 260 nm Infrared:... -
Page 19: Appendix A - Figures
Installation Manual 7 APPENDIX A – FIGURES Figure 7-1 DCR1 Housing Dimensions LED 1 LED 2 IR Sensor UV Sensor Figure 7-2 DCR1 Layout (Sensors & LEDs) DCR1-C Flame Detector Models (11/2019) Page: 13... - Page 20 Installation Manual Figure 7-3 Typical Wiring Connections Page: 14 DCR1-C Flame Detector Models (11/2019)
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Page 21: Appendix B - Tables
Installation Manual 8 APPENDIX B - TABLES Table 8-1 Wiring Connections Wire Function Description Notes Power Black Power Fault Relay Common White Fault Relay Common Fault Relay N.C.* Green Fault Relay N.O.* Pink Fire Relay Common Blue Fire Relay Common Brown Fire Relay N.O. - Page 22 Installation Manual Table 8-3 False Alarm Stimuli FALSE ALARM RESPONSE This Table Shows the Detector’s Ability to Tolerate Both Modulated and Unmodulated False Alarm Stimuli. All Tests Used a 1.75 Inch Diameter IPA Can Fire at 6 Feet. False Alarm Source Distance Unmodulated Modulated...
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