Eclipse manual


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Eclipse manual

  1. 1. DET-TRONICS ® INSTRUCTIONS Infrared Hydrocarbon Gas Detector PointWatch Eclipse™ Model PIRECL IMPORTANT Be sure to read and understand the entire instruction manual before installing or operating the gas detection system. This product is intend- ed 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 opera- tion.APPLICATIONThe Pointwatch Eclipse™ Model PIRECL is a diffusion-based, point-type infrared gas detector that providescontinuous monitoring of combustible hydrocarbon OPERATION OVERVIEWgas concentrations in the range of 0 to 100% LEL.Three basic configurations are available: THEORY OF OPERATION• 4-20 mA output with HART communication protocol Flammable hydrocarbon gases diffuse through the and RS-485 MODBUS communications weather baffle assembly into the internal measure- ment chamber, which is illuminated by an infrared (IR)• 4-20 mA output with HART communication protocol source. As the IR passes through the gas within the and RS-485 MODBUS communications, with two chamber, certain IR wavelengths are absorbed by the alarm relays and one fault relay. gas, while other IR wavelengths are not. The amount• Eagle Quantum Premier (EQP) compatible version of IR absorption is determined by the concentration of (no analog or relay outputs). the hydrocarbon gas. A pair of optical detectors and associated electronics measure the absorption. TheAll units are powered from 24 volts DC, and are fur- change in intensity of the absorbed light (active sig-nished with an onboard "status indication" LED, an nal) is measured relative to the intensity of light at ainternal magnetic calibration switch and an external non-absorbed wavelength (reference signal). Seecalibration line for use with the optional PIRTB remote Figure 1. The microprocessor computes the gas con-calibration termination box. centration and converts the value into a 4 to 20 mil- liampere current output or digital process variableThe Pointwatch Eclipse is ideal for use in harsh out- signal, which is then communicated to external con-door environments and is certified for use in Class I, trol and annunciation systems.Division 1, and Zone 1 hazardous areas. It can beused as a stand-alone detector, or as part of a largerfacility protection system using other Det-Tronicsequipment such as the U9500H Infiniti Transmitter,the R8471H Controller, or the Eagle Quantum PremierFire and Gas Detection/Releasing System.2.1 ©Detector Electronics Corporation 2003 6/03 95-8526
  2. 2. PERMEABLE GAS CELL IR SOURCE Default alarm settings are: Low: 20% LEL – Non-latching OPTICAL BEAM SPLITTER High: 50% LEL – Non-latching MEASUREMENT The Eclipse internal magnetic switch or HC275 HART SIGNAL DETECTOR communicator will reset latched alarms. A short dura- tion switch activation of 1 second will reset latched alarms. Note that holding the switch closed for 2 sec- onds will start the calibration sequence.SAPPHIRE OPTICAL The external calibration line will not reset latchedMIRROR FILTERS alarm relays. SIGNAL PROCESSINGIR TRANSPARENT ELECTRONICSWINDOW EQP Version GAS The Eagle Quantum Premier model provides propri-REFERENCE CONCENTRATIONSIGNAL DETECTOR (LEL) etary digital signals that are compatible with the EQ Premier network (LON) only. Figure 1—Measurement Scheme for Infrared Gas Detector RECORDING CAPABILITY Non-volatile memory is provided to save the 10 most recent calibrations, alarm/fault events, and mini-DETECTABLE GASES mum/maximum operating temperature history. An hour meter is provided to record operating serviceEclipse is capable of detecting many hydrocarbon time and to give an indication of the relative timegases and vapors. Field selectable standard settings between events. This information is accessible usingare provided for methane, ethane, propane, butane, HART, MODBUS communication, or EQP systemethylene, and propylene. Gas type and other opera- operating software.tional parameters are selected via digital communica-tions. Factory default setting is methane. SPECIFICATIONSOUTPUTS INPUT VOLTAGE (All Models)—Standard 24 VDC nominal. Operating range is 18 to 32 VDC. Ripple cannot exceed 0.5 volts P-P.The standard version provides an isolated/non-isolat-ed 4 to 20 mA current loop for connection to analog POWER CONSUMPTION (All Models)—input devices. Detector without Relays 4.0 watts nominal @ 24 VDCOptional Relays 7.5 watts peak @ 24 VDC 10 watts peak @ 32 VDC.An optional relay output board providing twoselectable alarm relay outputs and one fault relay out- Detector with Relaysput can be factory installed with the standard version. 5.5 watts nominal @ 24 VDCBoth standard and relay output versions also provide 8.0 watts peak @ 24 VDCboth HART and RS-485 MODBUS communication. 10.0 watts peak @ 32 VDC.The optional relays are sealed and have form C SHORT CIRCUIT CURRENT*(NO/NC) contacts. The high and low alarm relays can (Non-Relay Output Versions Only)—be set from 5 to 60% LEL with either latching or non- Isc: 5.4 amperes.latching contacts. The low alarm cannot be set above Isc (fuse): 3.1 amperes.the high alarm threshold. Alarm configuration can bedone with the HART or MODBUS interfaces. Visual *For installations in accordance with Increased Safetyalarm indication is provided with the onboard multi- wiring practices.color LED.2.1 2 95-8526
  3. 3. WARMUP TIME (All Models)— DEVICE CONFIGURATION—Two minutes from cold power-up to normal mode; Configuration parameters include gas type, measure-1 hour minimum recommended. ment range, alarm setpoints, gas signal processing algorithm, device tag number, and other selectableCURRENT OUTPUT (Standard Models Only)— parameters. Three configuration methods are avail-Linear 4 to 20 mA (current source/sink, isolated/non- able:isolated) rated at 600 ohms maximum loop resistance – HART@ 24 VDC operating voltage. – MODBUSVISUAL STATUS INDICATOR (All Models)— – EQP System Operating Software.Tri-color LED: Red = alarm CALIBRATION— Green = power on / OK All units are methane-calibrated at the factory. Field Yellow = fault. calibration is not required for methane detection applications.ALARM SETPOINT RANGE (All Models)—Low Alarm: 5 to 60% LEL Device configuration and field calibration are requiredHigh Alarm: 5 to 60% LEL. for detection of vapors other than methane. Refer to the “Calibration” section of this manual for details.Alarm setpoint is programmable using HART or MOD-BUS communications, or EQP software. Four calibration methods are available: - HARTRELAYS (Optional)— - MODBUS(Available on Ex d approved model only, not available - On-Board magnetic reed switchon Eagle Premier model). - Remote calibration line for remote switch.Provides two programmable alarm relays and one RESPONSE TIME (Seconds)—general fault relay. HART or MODBUS communica- Without Hydrophobic Filter: T90 ≤ 9 sec.tion is required for programming alarm relay setpoints With Hydrophobic Filter: T90 ≤ 12 sec.and operation. Relay contacts rated 5 amperes at 30 Note: Add 1 second to response time for EQP model.VDC. TEMPERATURE RANGE—Alarm relays are de-energized, and energize on an Operating: –40°C to +75°C (–40°F to +167°F).alarm condition. The fault relay is energized when no Storage: –55°C to +85°C (–67°F to +185°F).fault exists, and de-energizes on a fault condition. HUMIDITY—DIGITAL OUTPUT (Optional)— Unaffected by relative humidity (Det-Tronics verified)Digital communication, transformer isolated (78.5 5 to 95% relative humidity (FM/CSA/DEMKO verified).kbps). ACCURACY— NOTE ±3% from 0 to 50% LEL, ±5% from 51 to 100% LEL. Low and high alarm setpoints may be of latching or non-latching type via configuration software. SELF-DIAGNOSTIC TEST— Fail-Safe operation ensured by performing all criticalDETECTION RANGE— tests once per second.0 to 100% LEL standard. Other ranges are config-urable (down to 20% full scale). INGRESS PROTECTION— IP66 (DEMKO Verified).DETECTABLE GASES—Most flammable hydrocarbon vapors are detectable. ELECTRO-MAGNETIC COMPATIBILITY—Standard gases include methane, ethane, ethylene, EN50081-1 (Emissions – Light Industrial),propane, butane and propylene. Detection of non- EN50082-1 (Immunity – Light Industrial),standard gases is configurable using HART or MOD- EN50082-2 (Immunity – Heavy Industrial),BUS communication. EN50270. (Emissions & Immunity for Gas Detectors). (ETL verified). Operates properly with 5 watt walkie talkie keyed at 1 meter.2.1 3 95-8526
  4. 4. DETECTOR HOUSING MATERIAL— -- OR --CF8M stainless steel (castable 316 equivalent). 0539 II 2 G EEx d [ib] IIC T4-T5CONDUIT ENTRY OPTIONS— DEMKO 01 ATEX 129485X.Two entries, 3/4 inch NPT or 25 mm. T5 (Tamb –40°C to +40°C) T4 (Tamb –40°C to +75°C)HART COMMUNICATION PORT— IP66.Explosion-proof (FM/CSA)Intrinsically safe (CENELEC/CE). Special Conditions for Safe Use (‘X’): • The following warning is on the product:OPTICS PROTECTION—Three-layer weather baffle assembly is Polythalimide Warning: Do not open when an explosive gas atmo-plastic, UV-resistant, static dissipating black. sphere may be present.Optional internal hydrophobic filter is recommended For ambient temperature above 60°C use fieldfor areas with high levels of airborne particulates or wiring suitable for maximum ambient temperature.humidity. For temperature below –10°C use suitable field wiring for the lowest temperature.WIRING— • Cable, bushings and the conduit entries shall be ofField wiring screw terminals are UL/CSA rated for up a type already certified according to relevant CEN-to 14 AWG wire, and are DIN/VDE rated for 2.5 mm2 ELEC standard, so the protection principlewire. Screw terminal required torque range is 3.5–4.4 employed will not be (0.4-0.5 N·m). • Blanking elements shall be used for closing unusedELECTRICAL SAFETY CLASSIFICATION— holes and they shall be certified to the protectionInstallation Category (Overvoltage Category) II principle employed. The blanking elements or the& Pollution Degree 2 per ANSI/ISA-S82.02.01, device may only be removed with the aid of a tool.EN 61010-1 & IEC 61010-1. • The field wiring connections are terminals certified for increased safety according to the CENELECCERTIFICATIONS— standard EN50019 and is certified for a single wireFM & CSA: Class I, Div. 1, Groups C & D (T4). in size from 0.2 to 2.5 mm2, (two conductors with Class I, Div. 2, Groups A, B, C & D (T4). same cross section 02. to 0.75 mm2). The torque Performance verified. 0.4 to 0.5 Nm. • The Eclipse metal housing must be electrically con- NOTE nected to earth ground. Approval of the Model PIRECL does not include or imply approval of the apparatus to which the • The temperature code is linked to the ambient tem- detector may be connected and which processes perature as the following: the electronic signal for eventual end use. Code T5 for use in Tamb from –40°C to +50°C Code T4 for use in Tamb from –40°C to +75°C NOTE This Approval does not include or imply Approval • The terminal compartment for Eclipse without relays of the communications protocol or functions pro- is designed for either an increased safety “e” termi- vided by the software of this instrument or of the nation or a flameproof “d” termination of the supply communications apparatus or software connect- cable. If a flameproof connection is chosen, then a ed to this instrument. CENELEC certified cable entry device certified to EN50018 must be used. The Eclipse with relaysCENELEC: 0539 II 2 G requires Ex d cable entry devices only. EEx de [ib] IIC T4-T5 DEMKO 01 ATEX 129485X. (Performance verified.) T5 (Tamb –40°C to +40°C) T4 (Tamb –40°C to +75°C) IP66.2.1 4 95-8526
  5. 5. CE: Conforms to: IMPORTANT SAFETY NOTES Low Voltage Directive: 73/23/EEC, EMC Directive: 89/336/EEC, ATEX Directive: 94/9/EC. CAUTION The wiring procedures in this manual are intend- WARNING ed to ensure proper functioning of the device Always ensure that the detector/junction box under normal conditions. However, because of hazardous (classified) location ratings are appli- the many variations in wiring codes and regula- cable for the intended use. tions, total compliance to these ordinances can- not be guaranteed. Be certain that all wiringDIMENSIONS— complies with the NEC as well as all local ordi-See Figure 2. nances. If in doubt, consult the authority having jurisdiction before wiring the system. InstallationSHIPPING WEIGHT (Approximate)— must be done by a properly trained person.7.5 pounds (3.4 kg). CAUTIONWARRANTY— This product has been tested and approved forFive year limited warranty from date of manufacture. use in hazardous areas. However, it must beSee Appendix D for details. properly installed and used only under the condi- tions specified within this manual and the specific approval certificates. Any device modification, improper installation, or use in a faulty or incom- plete configuration will render warranty and prod- uct certifications invalid. CAUTION The detector contains no user serviceable com- 5.2 4.5 ponents. Service or repair should never be(13.2) (11.4) attempted by the user. Device repair should be performed only by the manufacturer or trained service personnel. LIABILITIES The manufacturer’s warranty for this product is void, and all liability for proper function of the 9.3 detector is irrevocably transferred to the owner or (23.6) operator in the event that the device is serviced or repaired by personnel not employed or autho- rized by Detector Electronics Corporation, or if the device is used in a manner not conforming to 4.6 its intended use.(11.7) CAUTION Observe precautions for handling electrostatic sensitive devices. A2055 NOTE Figure 2—Dimensions of Eclipse Detector in Inches (Centimeters) The PointWatch Eclipse is intended for detection of hydrocarbon vapors only. The device will not detect hydrogen gas.2.1 5 95-8526
  6. 6. INSTALLATION Final suitability of possible gas detector locations should be verified by a job site survey. Gas detectorBefore installing the Pointwatch Eclipse, define the area of coverage is a subjective evaluation, and mayfollowing application details: require long-term empirical data to confirm effective- ness. A typical rule of thumb is that one detector can cover a 900 square foot area. However, this rule ofIDENTIFICATION OF FLAMMABLE VAPOR(S) TO thumb is subject to change depending upon specificBE DETECTED application properties and requirements.It is necessary to always identify the flammablevapor(s) of interest at the job site in order to deter- NOTEmine the proper calibration gas setting for Pointwatch For additional information on determining theEclipse. In addition, the fire hazard properties of the quantity and placement of gas detectors in avapor, such as vapor density, flashpoint, and vapor specific application, refer to the article titled "Thepressure should be identified and used to assist in Use of Combustible Detectors in Protectingselecting the optimum detector mounting location Facilities from Flammable Hazards" contained inwithin the area. the Instrumentation, Systems and Automation Society (ISA) Transaction, Volume 20, NumberThe detector must be installed per local installation 2.practices. For IEC/CENELEC hazardous areas, it maybe acceptable to utilize EEx e wiring practices with PHYSICAL INSTALLATION REQUIREMENTSthe Eclipse (non-relay versions). Pointwatch Eclipse is provided with built-in mounting feet that will accept 3/8 inch (M8) diameter mountingIDENTIFICATION OF DETECTOR MOUNTING bolts. Always ensure that the mounting surface isLOCATIONS vibration-free and can suitably support the totalIdentification of the most likely leak sources and leak weight of the Pointwatch Eclipse without assistanceaccumulation areas is typically the first step in identi- from electrical cabling or conduit system.fying the best detector mounting locations. In addi-tion, identification of air current / wind patterns within The detector must be installed per local installationthe protected area is useful in predicting gas leak dis- practices. For IEC/CENELEC hazardous areas, it maypersion behavior. This information should be used to be acceptable to utilize EEx e wiring practices withidentify optimum sensor installation points. the Eclipse.If the vapor of interest is lighter than air, place the Device Mounting Orientationsensor above the potential gas leak. Place the sensorclose to the floor for gases that are heavier than air. Pointwatch Eclipse is not position-sensitive in terms ofFor heavy vapors, typically locate Pointwatch Eclipse its ability to detect gas. However, the weather baffleat 2-4 cm above grade elevation. Note that air cur- assembly provides superior performance when therents may cause a gas that is slightly heavier than air Eclipse is installed with the baffle in a horizontal posi-to rise under some conditions. Heated gases may tion. For this reason, it is highly recommended thatalso exhibit the same phenomenon. the Eclipse be positioned horizontally.The most effective number and placement of detec- LED Visibilitytors varies depending on the conditions at the jobsite. The individual designing the installation must Select a mounting orientation where the Pointwatchoften rely on experience and common sense to deter- Eclipse status indication LED is visible to personnelmine the detector quantity and best locations to ade- within the area.quately protect the area. Note that it is typicallyadvantageous to locate detectors where they are Calibration Gas Port Coveraccessible for maintenance, and also where theEclipse status indication LED can easily be seen. A protective cover for the calibration gas injectionLocations near excessive heat / vibration sources port is provided to ensure that contaminants are notshould be avoided if possible. accidently indroduced into the Eclipse optics. Ensure that this cover is properly installed over the port when calibration is not being performed.2.1 6 95-8526
  7. 7. 24 VDC POWER SUPPLY REQUIREMENTS The maximum distance between the Eclipse detector and its power supply is determined by the maximumCalculate the total gas detection system power con- allowable voltage drop for the power wiring loop. Ifsumption rate in watts from cold start-up. Select a the voltage drop is exceeded, the device will notpower supply with adequate capability for the calcu- operate. To determine the maximum power loop volt-lated load. Ensure that the selected power supply age drop, subtract the minimum operating voltage forprovides regulated and filtered 24 VDC output power the device (18 Vdc) from the minimum output voltagefor the entire system. If a back-up power system is of the power supply.required, a float-type battery charging system is rec-ommended. If an existing source of 24 VDC power isbeing utilized, verify that system requirements are Power Supply Voltage Maximum Power Loopmet. Minus Voltage Drop = Minimum Operating VoltageWIRING CABLE REQUIREMENTS To determine the actual maximum wire length:Always use proper cabling type and diameter forinput power as well as output signal wiring. 14 to 18 (1) Divide the maximum allowable voltage drop by theAWG shielded stranded copper wire is recommend- maximum current draw of the Eclipse (0.31 A),ed. (2) Divide by the resistance of the wire (ohms/foot value available in wire manufacturer’s specificationAlways install a properly sized, master power fuse or data sheet),breaker on the system power circuit. (3) Divide by 2. NOTE Maximum Voltage Drop The use of shielded cable in conduit or shielded ÷ armored cable is recommended for optimum Maximum Current RFI/EMI protection. In applications where the ÷ wiring is installed in conduit, dedicated conduit is Maximum Wire Length = Wire Resistance in recommended. Avoid low frequency, high volt- Ohms/Foot age, and non-signaling conductors to prevent ÷ nuisance EMI problems. 2 CAUTION The use of proper conduit installation techniques, For example: Consider an installation using 18 AWG breathers, glands, and seals is required to pre- wiring with a power supply providing 24 Vdc. vent water ingress and/or maintain the explosion- proof rating. Power supply voltage = 24 Vdc, Eclipse minimum operating voltage = 18 VdcPOWER WIRING SIZE AND MAXIMUM LENGTH 24 – 18 = 6 Vdc1. The Eclipse detector must receive 18 Vdc mini- mum to operate properly. 24 Vdc minimum is Maximum Voltage Drop = 6 recommended. Maximum Current = 0.31 A Wire Resistance in Ohms/Foot = 0.0065232. Always determine voltage drops that will occur to ensure that 24 Vdc is delivered to the Eclipse. 6 ÷ 0.31 ÷ 0.006523 ÷ 2 = 1484 feet3. Normally, nothing smaller than 18 AWG (0.75 NOTE mm2) is recommended by Det-Tronics for Eclipse For FM/CSA/CENELEC Certified systems using power cabling. HART communication, the maximum wiring dis- tance is 2000 feet.Wire size requirements are dependent upon powersupply voltage and wire length.2.1 7 95-8526
  8. 8. Figure 5 shows the wiring terminal configuration for the standard Eclipse without relays. FACTORY INSTALLED WIRING Figure 6 shows the wiring terminal configuration for TO RELAY BOARD the standard Eclipse with relays. (DO NOT REMOVE) Figures 7 through 10 show the 4 to 20 mA output of CAPTIVE SCREWS (3) the Eclipse detector in various wiring schemes. Figure 11 shows a standard Eclipse wired to a Model U9500H Infiniti Transmitter. Figure 12 shows a standard Eclipse wired to a Model RELAY TERMINAL BLOCK A2133 R8471H Controller. Figure 3—Eclipse Wiring Termination Compartment with Optional Relay Board Removed Figure 13 shows the wiring terminal configuration for the Eagle Quantum Premier Eclipse. Figure 14 shows the Eclipse wired for benchtop test-OPTIONAL RELAYS ing/programming using HART protocol.Optional relay contacts are “dry”, meaning that theinstaller must provide the voltage to the common ter- NOTEminal of the relay output. The Eclipse housing must be electrically con- nected to earth ground. A dedicated earthAC voltage should not be switched directly using the ground lug is provided for this purpose.Eclipse relays. The use of an external relay isrequired if AC voltage must be switched by the NOTEEclipse relays. For non-isolated operation, Det-Tronics highly recommends that the power supply be used as aIn order to change alarm relay settings from the facto- common point of connection for signal andry default settings, it is recommended to utilize a power.HC275 HART communicator. Contact the factory forfurther assistance. REMOTE CALIBRATION WIRINGThe relay board must temporarily be removed from If it is desired to initiate calibration using the remotethe Eclipse termination compartment to connect the calibrate line, the use of the Det-Tronics Model PIRTBrelay output field wiring cables. After the relay wiring Termination Box is highly recommended for optimumis connected, re-install the relay board using the three ease of installation and calibration. The PIRTB mod-captive screws. Refer to Figure 3. ule includes a magnetic reed switch, indicating LED, and wiring terminal block. Refer to “Remote Calibration Option” in the “Description” section of this manual for details.WIRING PROCEDUREEnsure that all cables are terminated properly. Figure 15 shows the location of the wiring terminals,Pointwatch Eclipse screw terminal torque range is reed switch and LED inside the calibration termination3.5–4.4 in.-lbs. (0.4–0.5 N·m). box. See Figure 16 for wiring details.Cable shield, if used, should be properly terminated. WARNINGIf not terminated, clip the shield wire off short and Do not attempt to physically connect or touch theinsulate it within the detector housing to prevent the calibration lead wire to DCV common in the fieldshield wire from accidentally contacting the detector to begin calibration. This practice is often lesshousing or any other wire. than precise, and may result in a spark or other undesirable results. For optimum ease of instal-Figure 4 shows the wiring terminal strip located inside lation and calibration, always utilize a Det-the detector’s integral junction box. Tronics junction box with magnetic reed-switch, indicating LED, and termination block (Model PIRTB).2.1 8 95-8526
  9. 9. EARTH GND LUG –24 VDC 1 +24 VDC 2 A2084 CALIBRATE 3 –24 VDC 4 Figure 4—Terminal Strip Located Inside Wiring Compartment +24 VDC 5 + 4-20 MA 6 – 4-20 MA 7 RS-485 B 8 RS-485 A 9 RELAY POWER (RED) 10 WIRING TO OPTIONAL FAULT (ORANGE) 11 RELAY BOARD –24 VDC 1 NO USER CONNECTION LOW ALARM (WHITE) 12 +24 VDC 2 HIGH ALARM (YELLOW) 13 CALIBRATE 3 –24 VDC 4 NO +24 VDC 5 FAULT RELAY NC + 4-20 MA 6 C – 4-20 MA 7 NO RS-485 B 8 RELAY BOARD TERMINALS HIGH ALARM (OPTIONAL) NC RS-485 A 9 RELAY C RELAY POWER 10 FAULT 11 NO NO USER CONNECTION LOW ALARM LOW ALARM 12 NC RELAY HIGH ALARM 13 C A2054 B2054 Figure 5—Wiring Terminal Identification Figure 6—Wiring Terminal Identification for Standard Eclipse Without Relays for Standard Eclipse with Relays2.1 9 95-8526
  10. 10. 24 VDC 24 VDC – + – + –24 VDC 1 –24 VDC 1 +24 VDC 2 +24 VDC 2 CALIBRATE 3 CALIBRATE 3 4 to 20 MA –24 VDC 4 * –24 VDC 4 4 to 20 MA +24 VDC 5 +24 VDC 5 + – + 4-20 MA 6 – + + 4-20 MA 6 – 4-20 MA 7 – 4-20 MA 7 * RS-485 B 8 RS-485 B 8 RS-485 A 9 RS-485 A 9 – +RELAY POWER 10 RELAY POWER 10 24 VDC FAULT 11 FAULT 11 NO USER CONNECTION NO USER CONNECTION LOW ALARM 12 LOW ALARM 12 HIGH ALARM 13 HIGH ALARM 13 B2050 B2052*TOTAL LOOP RESISTANCE = 250 OHMS MINIMUM, 600 OHMS MAXIMUM. *TOTAL LOOP RESISTANCE = 250 OHMS MINIMUM, 600 OHMS MAXIMUM. DO NOT INSTALL RESISTOR WITHIN PIRECL ENCLOSURE IN EEx e APPLICATIONS. DO NOT INSTALL RESISTOR WITHIN PIRECL ENCLOSURE IN EEx e APPLICATIONS. Figure 7—Eclipse Detector Wired for Non-Isolated 4 to 20 ma Figure 9—Eclipse Detector Wired for Isolated 4 to 20 ma Current Current Output (Sinking) Output (Sinking) 24 VDC 24 VDC – + – + –24 VDC 1 –24 VDC 1 +24 VDC 2 +24 VDC 2 CALIBRATE 3 CALIBRATE 3 –24 VDC 4 24 VDC –24 VDC 4 4 to 20 MA * +24 VDC 5 +24 VDC 5 + – + 4-20 MA 6 + – + 4-20 MA 6 – 4-20 MA 7 4 to 20 MA * – 4-20 MA 7 RS-485 B 8 RS-485 B 8 + – RS-485 A 9 RS-485 A 9RELAY POWER 10 RELAY POWER 10 FAULT 11 FAULT 11 NO USER CONNECTION NO USER CONNECTION LOW ALARM 12 LOW ALARM 12 HIGH ALARM 13 HIGH ALARM 13 B2051 B2053*TOTAL LOOP RESISTANCE = 250 OHMS MINIMUM, 600 OHMS MAXIMUM. *TOTAL LOOP RESISTANCE = 250 OHMS MINIMUM, 600 OHMS MAXIMUM. DO NOT INSTALL RESISTOR WITHIN PIRECL ENCLOSURE IN EEx e APPLICATIONS. DO NOT INSTALL RESISTOR WITHIN PIRECL ENCLOSURE IN EEx e APPLICATIONS. Figure 8—Eclipse Detector Wired for Non-Isolated 4 to 20 ma Figure 10—Eclipse Detector Wired for Isolated 4 to 20 ma Current Current Output (Sourcing) Output (Sourcing)2.1 10 95-8526
  11. 11. PIRECL POINTWATCH ECLIPSE –24 VDC 1 NO COM NC FLT RELAY +24 VDC 2 U9500H 24 VDC INFINITI TRANSMITTER CALIBRATE 3 + – –24 VDC 4 S +24 VDC 5 POWER – S + 4-20 MA 6 POWER – + RESET – 4-20 MA 7 + RS-485 B 8 CAL PW + OUT RS-485 A 9 IN – A2201 RELAY POWER 10 FAULT 11 NO USER CONNECTION 1 LOW ALARM 12 HIGH ALARM 13 - + DCS NOTES: 1 250 OHM RESISTOR REQUIRED. 2 PIRECL ECLIPSE MUST BE PROGRAMMED TO PIR9400 FAULT MODE FOR PROPER STATUS IDENTIFICATION AT THE U9500H TRANSMITTER. Figure 11—Standard Eclipse Wired to a Model U9500H Infiniti Transmitter PIRECL R8471H CONTROLLER POINTWATCH ECLIPSE – 1 –24 VDC – 1 24 VDC CURRENT OUTPUT + 2 +24 VDC + 2 –24 VDC 1 3 CHASSIS GROUND 3 4 –24 VDC +24 VDC 2 + 4 1 POWER 18 TO 32 5 +24 VDC VDC 24 VDC SHIELD 3 – 5 6 + 4-20 MA POWER + 6 2 –24 VDC 4 SENSOR 7 – 4-20 MA SIGNAL – 7 8 +24 VDC 5 EXTERNAL RESET 8 9 24 VDC SHIELD 6 HIGH ALARM 9 10 COM 1 A 7 HIGH ALARM / OC 10 11 AUX. ALARM 11 COM 1 B 8 12 AUX. ALARM / OC 12 13 COM 1 SHIELD 9 A2202 LOW ALARM 13 COM 2 A 10 LOW ALARM / OC 14 COM 2 B 11 FAULT 15 NOTES: 1 INTERNAL JUMPER REQUIRED FOR NON-ISOLATED CURRENT COM 2 SHIELD 12 FAULT / OC 16 OUTPUT (SINGLE POWER SUPPLY). CALIBRATE 13OC = OPEN COLLECTOR OUTPUT A2087 (BASE MODEL ONLY) 2 250 OHM RESISTOR REQUIRED. Figure 13—Wiring Terminal Identification Figure 12—Standard Eclipse Wired to a Model R8471H Controller for Eagle Quantum Premier Eclipse2.1 11 95-8526
  13. 13. DESCRIPTION Table 1—LED Status Indication LED Device StatusINTERNAL MAGNETIC SWITCH Green Normal operation.An internal magnetic switch is provided for resetting Red Blinking indicates Low Alarm.latched alarms and initiating calibration. See Figure On steady indicates High Alarm.17 for switch location. Momentary switch activation Amber Fault condition.will reset alarms, while holding the switch closed for 2seconds or longer will start the calibration sequence.The switch can also be used to enter "live" calibrationmode or terminate the calibration sequence (see MULTICOLOR LED"Calibration" section). An onboard multi-color LED is provided for indicating faults, alarms, and calibration status. See Table 1.HART COMMUNICATION PORT LED operation for fault status is non-latching. LEDA HART communication port is provided for connect- operation for alarms is configurable for latching/non-ing the HC275 Communicator to the Eclipse. Refer to latching.Figure 18. WEATHER BAFFLE ASSEMBLY NOTE A 4 to 20 mA loop with at lease 250 ohms must The weather baffle prevents debris and water from be active for HART communication to work. entering the optics, while allowing gases and vapors to enter readily. A baffle seal O-ring is provided toIf a PIRTB Remote Calibration Termination Box is uti- ensure a proper seal.lized, the HC275 can be connected at the PIRTB.Note that this connection requires removal of the Two weather baffle configurations are available —PIRTB cover. one with a hydrophobic filter and one without the filter. The weather baffle assembly is not field-serviceable,Connect the HC275 HART Communicator, then turn it but is easily replaceable. To remove the plasticon by pressing the ON/OFF key. The communicator weather baffle from the Eclipse body, rotate it onewill indicate when the connection is made. If the con- quarter turn counter-clockwise and pull.nection is not made, the communicator will indicatethat no device was found. Refer to the HART The weather baffle is furnished with a calibration gasappendix in this manual for complete information. nozzle for direct injection of gas to the sensor, allow- ing the operator to apply gas to the detector without WARNING going through the weather baffle. For Division applications, do not open cover when explosive gas atmosphere may be present. NOTE Always cover the calibration gas nozzle with the cap provided, except when performing calibra- MULTICOLOR LED tion. HART COMMUNICATION PORT (COVER INSTALLED) PLACE CALIBRATION MAGNET HERE TO ACTIVATE INTERNAL REED SWITCH EARTH GND LUG WEATHER BAFFLE CALIBRATION MAGNET A2058 CALIBRATION NOZZLE Figure 18—HC275 HART Communicator Connected to Figure 17—PointWatch Eclipse HART Communication Port on Eclipse2.1 13 95-8526
  14. 14. CLOCK The PIRTB consists of a termination/circuit board, housed within an explosion-proof junction box. TheAn hour meter is provided to give a relative indication circuit board contains a magnetic reed switch for initi-of time for historical logs. The meter is zeroed at the ating calibration, an indicating LED to signal the oper-time of manufacture and only increments while power ator when to apply and remove the calibration gas,is applied. HART or MODBUS communication is and a wiring terminal block. The junction box cover isrequired to view the running hours. furnished with a small viewing window that enables calibration to be performed without hazardous areaHISTORY LOGS de-classification. The PIRTB may be installed up to 100 feet away from the Eclipse. Refer to Figure 19 forAll history logs are saved in non-volatile memory and remote calibration configuration options.retained through power cycles. HART or MODBUScommunication is required to view the history logs. NOTE The remote calibration switch is intended for initi-Event Log (Alarms and Faults) ating calibration only. Resetting latching alarm outputs using the remote calibration switch can-An event log saves the ten most recent alarms and a not be accomplished without entering theselected group of faults with an hour meter time Calibration mode.stamp. HART or MODBUS communication is requiredto view the log. Types of logged events include: The following recommendations are provided to• Low Alarms enhance operator ease and convenience of remote• High Alarms calibration configurations:• Blocked Beam Fault 1. Install the Eclipse in such a manner that the• Warm-up onboard LED is visible whenever possible. This• Calibration Fault will aid in checking device status "at a glance." 2. The Eclipse is provided with a calibration gasCalibration Log nozzle on the weather baffle, which allows the useA log of the ten most recent calibrations with time of permanently attached calibration gas deliverystamp is saved. HART or MODBUS communication is tubing (either polyethylene or stainless steel).required to view the log. Types of calibration records The tubing is typically routed in parallel with theinclude: remote calibration cabling to the same location as the PIRTB termination box. This arrangement• Zero Only Calibration enables a technician to initiate calibration and• Complete Calibration deliver the calibration gas to the Eclipse from a• Failed Calibration single location. 3. When permanently installed calibration gas tubingMin/Max Temperature History is utilized, always install a shut-off valve at theThe all-time highest and lowest ambient temperatures open end to prevent unwanted vapors or debrisare stored with a time stamp. A second pair of from entering the tubing.min/max temperatures, which can be reset by theuser, is also provided. HART or MODBUS communi- 4. Always purge the permanent tubing with clean,cation is required to view the log. dry compressed air prior to and immediately after calibration to ensure that residual combustible gases are cleared. Always close the shutoff valveREMOTE CALIBRATION OPTION after post-calibration purging is complete. ThisIn most applications, it is recommended to install the will ensure that all hydrocarbon vapors are elimi-Pointwatch Eclipse where it will contact the vapor of nated from the Eclipse optics.interest as quickly as possible. Unfortunately, thebest location for early warning can often result in 5. Note that permanently installed calibration gasaccessibility problems for the operator when calibra- tubing will increase the calibration gas consump-tion is required. In these applications, the Model tion rate as a function of total tubing length.PIRTB Termination Box is highly recommended toprovide the ability to calibrate the Pointwatch Eclipse Other methods of remote Eclipse calibration includefrom a remote location. utilizing HART or MODBUS communications. Refer to the HART and MODBUS appendices for details.2.1 14 95-8526
  16. 16. SPECIAL APPLICATIONS Table 2—Calibration or Response TestThe standard Pointwatch Eclipse is intended for open Function Calibration Responsearea combustible gas detection applications. TestHowever, special detector configurations are avail- Startup Xable for applications such as duct-mounting and sam- Gas selection changed Xple extraction. Contact Detector Electronics Non-standard gas XCorporation for information on these special device (using linearization other than methane)configurations. Replace any part X Constant zero offset X Periodic Functional Testing XOPERATION (at least once a year)FACTORY DEFAULT SETTINGSThe Pointwatch Eclipse is shipped from the factory 4 TO 20 MA CURRENT LOOP OUTPUTpre-calibrated and set for detection of 0-100% LEL Eclipse provides an isolated, linear current loop out-methane. Detection of gases other than methane will put that is proportional to the detected gas level.require changing the factory gas setting and perform- Fault and calibration status are also indicated by thising field calibration of the device. HART or MODBUS output.communication is required to change the factorydefault settings. Refer to the HART Communications The factory default for full-scale 100% LEL output isAppendix within this document for additional guid- 20 mA. Other full scale values (from 20 to 100% LEL)ance. can be selected using HART or MODBUS communi- cation. HART and MODBUS interfaces also have theOPERATING MODES ability to calibrate the 4 mA and 20 mA levels.The Eclipse has three operating modes: warm-up, When the default setting is selected, the LEL percent-normal, and calibrate. age for a given current reading can be calculated using the formula:Warm-up % LEL = (X – 4) ÷ 0.16 X = Current readingWarm-up mode is entered upon application of 24 in milliamperesVDC operating power. During warm-up, the 4-20 mA Example: Device reads 12 mA.current loop output will indicate warm-up, the indicat- 12 – 4 = 8ing LED is yellow, and the alarm outputs are disabled. 8 ÷ 0.16 = 50The warm-up mode lasts nominally two (2) minutes 50% LEL is indicated.after power-up. Normally, the current loop output is proportional to theNormal selected standard gas type only. Refer to Appendix C within this document for information on non-stan-After warm-up mode is completed, the device auto- dard gas detection.matically enters the Normal mode, and all analog andalarm outputs are enabled. FAULT INDICATIONCalibrate There are three modes of signaling faults using the 4- 20 mA analog signal output:Calibration of the Eclipse is normally not required;however, the user has the option to verify proper cali- • PIR9400 (Factory default setting, used for retrofitbration or to perform calibration procedures if neces- applications of the PIR9400 detector)sary. Guidelines for when to perform a calibration or • Eclipsea response test are listed in Table 2. The user has • User Definedthe choice of three methods to place the device intothe Calibrate mode. Refer to the "Calibration" section Fault signaling mode can be selected using the HARTin this manual for details. or MODBUS interface. Table 3 shows the current lev- els for each fault mode.2.1 16 95-8526
  17. 17. PIR9400 Fault Mode STARTUPThis mode is provided for compatibility with existing When the Eclipse is installed and wired as describedDet-Tronics PointWatch gas detectors. The fault and in the “Installation” section, it is ready for commission-calibration levels are identical to existing PIR9400 ing. If the application requires that specific changesunits, which makes the Eclipse compatible with the be made to the factory settings, HART, MODBUS orU9500 Infiniti Transmitter. As with the PIR9400 detec- EQP communication will be required. Refer to thetor, live and suppressed “signal during calibration” appropriate Appendix for details.modes are available. NOTEEclipse Fault Mode Ensure that controller alarm outputs are inhibited for a minimum of 10 seconds after systemEclipse mode follows conventional fault signaling power-up to prevent unwanted output actuation.practice. The current loop output indicates the pres-ence of a fault, but does not attempt to identify a spe-cific fault with a specific current output value.Identification of a specific fault type is done throughthe HC275 HART communicator or MODBUS.User Defined Fault ModeThis mode is intended for users who wish to programunique current levels for faults and calibration signals.User defined current levels can be set from 0.0 to24.0 mA. and can be programmed from HART orMODBUS interfaces. Four unique current levels areavailable: warm-up, general fault, calibration, andblocked optics. Table 3—Output Levels of 4 to 20 ma Current Loop and Corresponding Status Indications Condition PIR9400 Fault Mode Eclipse Fault Mode User Defined Fault Mode Gas Level (-10% to 120% Full scale) 2.4 to 23.20 2.4 to 23.20 2.4 to 23.20 Warm-up 0.00 1.00 Warm-up Reference Sensor Saturated 0.20 1.00 General Fault Active Sensor Saturated 0.40 1.00 General Fault Calibration line active on power-up 0.60 1.00 General Fault Low 24 volts 0.80 1.00 General Fault Low 12 volts 1.20 1.00 General Fault Low 5 volts 1.20 1.00 General Fault Dirty Optics 1.00 2.00 Blocked Optics Calibration Fault 1.60 1.00 General Fault Calibration complete 1.80 1.00 Calibration Span calibration, apply gas 2.00 1.00 Calibration Zero calibration in progress 2.20 1.00 Calibration Negative signal output fault 2.40 1.00 General Fault Flash CRC 1.20 1.00 General Fault Ram Error 1.20 1.00 General Fault EEPROM Error 1.20 1.00 General Fault IR Source Failure 1.20 1.00 General Fault2.1 17 95-8526
  18. 18. CALIBRATION ADDITIONAL CALIBRATION NOTESCALIBRATION OVERVIEW IMPORTANT Always ensure that the correct gas type is usedAlthough routine calibration of the Pointwatch Eclipse for calibration. (2.5 LPM flow rate is recom-is normally not required, the device supports non- mended.)intrusive field calibration capability. Two (2) calibra-tion procedure options are provided: NOTE Ensure that the detector has been operating for1. Normal Calibration is a two-step process con- at least two hours before calibrating. sisting of clean air (zero) condition and mid-scale (span) adjustment. Calibration gas must be NOTE applied by the operator to enable span adjust- Always ensure that the Eclipse optics are totally ment. Normal calibration is required whenever free of all hydrocarbons before initiating calibra- the gas type setting has been changed from the tion. This may require purging of the Eclipse factory-default methane setting. Purge the with pure air prior to initiating calibration. Eclipse optics with clean, dry air prior to calibra- tion initiation to ensure that an accurate zero NOTE (clean air) condition is present. Under very windy conditions, it may not be possi- ble to successfully calibrate the Eclipse. This sit- The following Normal Calibration guidelines uation is easily corrected by using the Eclipse always apply: Calibration Bag (P/N 006672-002), available from Det-Tronics. A. The Eclipse is factory set for detection of methane. If the gas setting is changed (using NOTE HART, MODBUS or EQP communication), the Always place the protective cap back on the cali- Eclipse must be re-calibrated (normally with bration nozzle after completion of span calibra- the matching gas type). tion. B. The calibration gas type normally should match the selected gas setting for the Eclipse. Different calibration gas types are selectable using HART, MODBUS or EQP communication. The factory default calibra- tion gas is methane. C. The recommended calibration gas concentra- tion is 50% LEL, although other calibration concentrations may be utilized if previously defined in the Eclipse using HART, MODBUS or EQP communication.2. Zero Only Calibration is a one-step process con- sisting of clean air (zero) condition adjustment only, which is performed automatically by the device. This procedure adjusts the "clean air" sig- nal output only, and is normally used if the 4 mil- liampere signal level has drifted. The cause of drift is typically due to the presence of back- ground gas during calibration. Purge the Eclipse optics with clean, dry compressed air prior to cali- bration initiation to ensure an accurate zero (clean air) condition is present.2.1 18 95-8526
  19. 19. CALIBRATION INITIATION DETAILED CALIBRATION PROCEDURE USING MAGNETIC SWITCHEclipse calibration may be initiated by any of the fol-lowing means: Refer to Tables 4 and 5 for a quick summary of the• The onboard magnetic calibration switch standard calibration sequence.• The magnetic calibration switch in the remote termi- 1. Apply magnet for 2 seconds minimum to initiate nation box calibration.• HART communication. A. The onboard LED turns to steady red. B. The LED within the PIRTB (if used) turns on.Calibration using Magnetic Switch C. The Eclipse current output decreases from 41. Onboard Switch and LED mA to 1 mA when the default Eclipse calibra- The Pointwatch Eclipse provides an onboard tion routine is used. magnetic calibration/reset switch for non-intrusive calibration capability. The magnetic switch is 2. When zero calibration is complete: located on the device bulkhead. See Figure 17 for switch location. An onboard tri-color LED is A. The onboard LED changes from steady red to also provided to signal the operator when to flashing red. apply and remove calibration gas. B. The LED within the PIRTB (if used) begins flashing.2. Remote Switch and Indicating LED A special Remote Termination Box (Model PIRTB) C. The Eclipse current output does not change is available for initiating calibration from a remote from the 1 mA level when the default Eclipse location. The PIRTB provides an internal magnet- calibration routine is used. ic switch and indicating LED (LED is on/off only, D. The operator should now apply the appropri- not tri-color). The PIRTB is provided with a clear ate calibration gas to the Eclipse if conduct- window on the cover, enabling non-intrusive cali- ing Normal Calibration. bration capability. E. If conducting Zero Only Calibration, the oper-Either magnetic switch must be actuated for 2 sec- ator should re-apply the magnet to the switch.onds using a calibration magnet to initiate Eclipse cal- This will conclude the Zero Only calibrationibration. Upon initiation, the Eclipse automatically sequence.performs the zero calibration adjustment, and thensignals the operator when it is time to apply calibra- 3. When Span Calibration is complete:tion gas. Upon completion of the span adjustment, A. The onboard LED changes from flashing redthe Eclipse returns to normal mode after the calibra- to “off”.tion gas has cleared. The indicating LED (eitheronboard LED or PIRTB LED, if used) provides visual B. The LED within the PIRTB (if used) changessignals to the operator regarding the proper time to to steady on.apply and remove the calibration gas. C. The Eclipse current output does not change from the 1 mA level when the default EclipseFor Zero Only Calibration, the operator must re-actu- calibration routine is used.ate the magnetic switch upon LED signal to apply cal-ibration gas. This action instructs the Eclipse to utilize D. The operator should now remove the calibra-the previous span setting, and return to normal mode tion gas from the Eclipse.without requiring application of calibration gas. 4. Return to Normal is complete when:Digital Communication Calibration A. The onboard LED changes from “off” toHART, MODBUS or EQP communication may be uti- steady green.lized to initiate Eclipse calibration. Refer to the appro- B. The LED within the PIRTB (if used) turns off.priate appendix for details. C. The Eclipse current output returns to 4 mA after detected calibration gas level drops below 5% LEL or the calibration abort signal is provided.2.1 19 95-8526