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General| Type | Flame Detector |
|---|---|
| Detection Principle | Infrared (IR) |
| Detection Range | Up to 60 meters (197 feet) |
| Operating Temperature | -40°C to +75°C (-40°F to +167°F) |
| Power Supply | 24 VDC (18-30 VDC) |
| Output Signal | 4-20 mA, Relay |
| Enclosure Rating | NEMA 4X, IP66 |
| Field of View | 90° |
| Humidity | 0-95% RH (non-condensing) |
| Approvals | ATEX, IECEx, FM |
| Housing Material | Stainless Steel |
Describes the PIRECL as a diffusion-based, point-type infrared gas detector for monitoring...
Details power, LED, magnetic switch, and external calibration line features of the detector.
Explains how hydrocarbon gases are detected using infrared absorption and optical detectors.
Provides an isolated/non-isolated 4-20 mA current loop for analog input devices.
Offers two programmable alarm relays and one fault relay with Form C contacts.
Provides proprietary digital signals for EQ Premier network; no analog or relay outputs.
Details the 24 Vdc nominal input voltage and operating range (18-32 Vdc).
Specifies power consumption for detectors with and without relays.
Defines operating (-40°C to +75°C) and storage (-55°C to +85°C) temperature limits.
Specifies humidity ranges for operation (0-99% RH) and verification (5-95% RH).
Standard range is 0-100% LFL; configurable down to 20% full scale.
Details programmable parameters and supported configuration methods (HART, S3, Modbus).
Specifies input voltage (30 Vdc) and current (30 mA) for optional modules.
Provides short circuit current and max voltage for non-relay output versions.
Device enters normal mode after 2 minutes; 1-hour warm-up recommended for optimum performance.
Linear 4-20 mA output rated at 600 ohms loop resistance @ 24 Vdc.
Describes the tri-color LED status for low alarm, high alarm, calibration, power, and fault.
Details optional alarm relays (low/high) and fault relay (Form C, 5A @ 30 Vdc).
Configurable latching/non-latching relays, setpoint range, and factory defaults.
Details the Form C fault relay, energized during normal mode, de-energized on fault/power loss.
Provides digital communication, transformer isolated at 78.5 kbps.
Units are factory calibrated; field calibration may be needed for other gases or verification.
Recommends frequent visual inspections to ensure no external obstructions block detection.
Details response times, refer to appropriate Appendix for specifics.
States the PIRECL passes Sinusoidal Vibration Testing per MIL-STD-810C.
Specifies accuracy as ±3% LFL (0-50% LFL) and ±5% LFL (51-100% LFL).
Ensures fail-safe operation by performing critical tests once per second.
Rated IP66/IP67 (DEMKO Verified).
Constructed from 316 stainless steel (CF8M).
Features two entries: 3/4 inch NPT or 25 mm.
Intrinsically safe port for live maintenance; follow Control Drawing 007283-001.
Describes UV-resistant weather baffle assembly and optional replacement baffles.
Specifies field wiring screw terminals (UL/CSA, DIN/VDE rated) and torque requirements.
Installation Category II & Pollution Degree 2 per ANSI/ISA-S82.02.01, EN 61010-1 & IEC 61010-1.
Refer to the appropriate Appendix for specific certification information.
See Figure 2 for detector dimensions.
Approximate shipping weight is 10.5 pounds (4.8 kg).
Provides a five-year limited warranty from the date of manufacture.
Emphasizes compliance with NEC, local ordinances, and installation by trained personnel.
Stresses proper installation and use within specified conditions to maintain approvals.
States detector has no user serviceable parts; service must be by authorized personnel.
Void warranty and liability if serviced by unauthorized personnel or used improperly.
Advises observing precautions for handling electrostatic sensitive devices.
Clarifies that the detector is for hydrocarbon vapors only and does not detect hydrogen gas.
Determine target vapor and its properties to select calibration gas and mounting location.
Identify leak sources, accumulation areas, and air currents for optimal sensor placement.
Detector uses built-in mounting feet; ensure mounting surface is vibration-free.
Recommends horizontal installation for superior weather baffle performance.
Select mounting orientation for clear visibility of the status indication LED.
Protective cover prevents contaminants; must be installed when not calibrating.
Calculate total power consumption and select a supply with adequate, regulated, filtered 24 Vdc output.
Use proper 14-18 AWG shielded stranded copper wire; install master fuse/breaker.
Requires proper conduit techniques, breathers, glands, and seals to prevent water ingress.
Details minimum voltage, voltage drop calculation, and wire size/length recommendations.
Optional relay contacts are dry; installer provides voltage. Use external relay for AC voltage.
Ensure proper termination, torque screw terminals (3.5-4.4 in.-lbs.), and strip conductor insulation.
Warns against directly connecting calibration lead wire to DCV common; recommends PIRTB.
Recommends PIRTB Termination Box for remote calibration initiation and LED indication.
Resets alarms and initiates calibration; momentary for reset, 2+ sec for calibration.
Optional intrinsically safe port for non-intrusive connection; requires 250 ohm resistor.
Notes on HART capability, resistor requirement, and bench testing.
Warns against opening cover in explosive atmosphere for Division applications.
Onboard LED indicates faults, alarms, and calibration status (see Table 1).
Protects optics from debris/water; available with/without hydrophobic filter.
Advises that solvents may damage baffle; use soap and water or replace if contaminated.
Provides relative time indication for logs; meter increments when power is applied.
Logs saved in non-volatile memory; accessible via HART or MODBUS communication.
Logs the ten most recent alarms and faults with time stamps.
Logs the ten most recent calibrations with time stamps.
Stores and allows access to ambient min/max exposed temperature measurements.
Housed in junction box with magnetic switch, LED, and terminal block for remote calibration.
Switch initiates calibration only; alarm reset requires entering Calibration mode.
Includes HART or MODBUS communications for remote calibration.
Shipped pre-calibrated for methane, propane, ethylene, or butane; HART/Modbus needed for changes.
Device operates in three modes: warm-up, normal, and calibrate.
Enters upon 24 Vdc power-up; 4-20 mA indicates warm-up, LED is yellow, alarms disabled.
Device enters Normal mode after warm-up; analog and alarm outputs enabled.
Supports field calibration to verify or perform procedures; three methods available.
Three modes (PIR9400, Eclipse, User Defined) for signaling faults via 4-20 mA output.
Compatibility mode for existing PointWatch detectors and U9500 Transmitter.
Conventional fault signaling; specific fault identified via HART or Modbus.
Allows programming of unique current levels for faults and calibration signals.
Inhibits controller alarm outputs for 10 seconds after power-up to prevent unwanted actuation.
Verifies safety function after installation or modification for proper operation.
Checklists for electrical, mechanical, and gas detection/measurement aspects.
Verifies power conductors, supply capacity, voltage, signal termination, and relay termination.
Checks mounting, orientation, weatherproof status, cover tightness, and set screw.
Confirms identified vapors, coverage areas, installation locations, calibration gas, and communicator.
Supports non-intrusive field calibration with two procedure options: Normal and Zero Only.
Two-step process: clean air (zero) and mid-scale (span) adjustment. Requires calibration gas.
If gas setting changes, recalibrate with matching gas; gas type should match Eclipse setting.
Recommended calibration gas concentration is 50% LFL, but others are configurable.
One-step process for clean air (zero) adjustment; useful for 4mA signal drift.
Ensure correct gas type and 2.5 LPM flow rate for calibration.
Ensure detector has operated for at least two hours before initiating calibration.
Ensure optics are free of hydrocarbons; purge with pure air if necessary.
Windy conditions may affect calibration; use Calibration Bag if needed.
Replace the protective cap on the calibration nozzle after span calibration.
Initiate calibration via onboard switch, remote switch, or HART communication.
Initiate calibration via onboard switch, remote switch, or HART communication.
Details using onboard or remote magnetic switches for calibration.
Onboard switch/LED for non-intrusive calibration; LED signals operator for gas application.
PIRTB provides remote magnetic switch and LED for non-intrusive calibration.
Calibration can be initiated using HART, MODBUS, or EQP communication.
Step-by-step guide for initiating, performing zero/span calibration, and returning to normal.
Calibration can be aborted via magnetic switch or command; retains new zero point.
Calibration fails if not completed within 10 minutes; returns to previous calibration values.
Span calibration typically completes in 3 minutes or less under normal conditions.
References the PIRECL Safety Manual (95-8630) for specific maintenance requirements.
Periodically inspect for external obstructions blocking baffle and check diffusion paths.
Clean baffle with soft brush, soap, and water; replace if damaged or fouled.
Clean optical surfaces with isopropyl alcohol if an optical fault is indicated.
Inspect O-ring for cracks/dryness; apply lubricant if dry, replace if cracked.
Ensure calibration nozzle cap, HART port cover, and wiring compartment cover are installed.
Fault indicated by yellow LED and 4-20 mA output; consult Table 6 for fault type.
Provides corrective actions for identified fault conditions.
Device not field-repairable; return to factory for repair after checking wiring, programming, calibration.
Details fault conditions like Low 24 volts, Dirty Optics, Calibration Fault, and their corrective actions.
Refer to the PIRECL Model Matrix for ordering.
Describes calibration kits containing gas cylinders, regulator, tubing, and wind shield.
Lists part numbers for weather baffles, covers, O-rings, and other components.
Provides contact details for Detector Electronics Corporation for ordering assistance.
Details the PIRECL Point Infrared Eclipse Gas Detector.
Specifies thread type options: 3/4" NPT (A) or M25 (B).
Lists 4-20 mA with HART/RS-485 (0-100% LFL) and EQP (0-100% LFL) options.
Details HART Communication, HART + Relay Board, No Optional Outputs, and Relay Board options.
Lists options for weather baffles with/without hydrophobic filter and threaded calibration ports.
Lists regional approvals: Brazil, Russia, SIL/FM/CSA/ATEX/CE/IECEX, Ukraine, China.
Specifies classifications: Division/Zone Ex de (1) and Division/Zone Ex d (2).
Explosion-proof, non-incendive ratings, temperature limits, and performance verification for FM approval.
Clarifies that apparatus connection and communication protocols are not implied approvals.
Table showing T50, T60, T90 response times for different gases and baffles.
Specifies accuracy as ±3% LFL (0-50%) and ±5% LFL (51-100%).
Notes proper operation with a 5-watt walkie talkie keyed at 1 meter.
Detects other hydrocarbons with field-selectable settings; consult factory for details.
Explosion-proof, non-incendive ratings, temperature limits, and performance verification for CSA approval.
Clarifies that apparatus connection and communication protocols are not implied approvals.
Table showing T50, T60, T90 response times for different gases and baffles.
Specifies accuracy as ±3% LFL (0-50%) and ±5% LFL (51-100%).
Detects other hydrocarbons with field-selectable settings; consult factory for details.
Lists ATEX certifications, temperature ranges, IP ratings, and performance testing standards.
Specifies installation requirements, wiring torque, earth grounding, and temperature limits.
Includes warnings on opening covers, wiring suitability, conduit plugs, and cable types.
Lists relevant EN standards for ATEX compliance, including safety and EMC.
Confirms conformity to Low Voltage, EMC, and ATEX Directives.
Lists IECEx certifications, temperature ranges, IP ratings, and HART port specifications.
Details wiring terminal certification, earth grounding, impact protection, and power supply requirements.
Lists relevant IEC standards for IECEx compliance.
Ensures hazardous (classified) location ratings are applicable for the intended use.
IEC 61508 certified SIL 2 Capable; refer to Safety Reference Manual for details.
Complies with Det Norske Veritas' Rules for Classification of Ships and Offshore Standards.
Lists location classes (Temp, Humidity, Vibration, EMC, Enclosure) for PIRECL.
Complies with SOLAS 74, Regulation II-2/4 & V1/3, and FSS Code 15 requirements.
Details location classes (Temperature, Vibration, EMC, Enclosure) for MED compliance.
Table showing T50, T60, T90 response times for different gases and baffles.
Specifies accuracy as ±3% LFL (0-50%) and ±5% LFL (51-100%).
Detects other hydrocarbons with field-selectable settings; consult factory for details.
Guides on establishing HART communication and navigating the menu structure.
Connects HART communicator to 4-20 mA circuit or IS HART port; requires 250 ohm loop resistance.
Emphasizes loop resistance for HART function and notes on Generic HART mode.
Steps to check if the Eclipse Device Description Language (DDL) is programmed in the communicator.
Displays primary commands and options available in the HART menu tree.
Cross-references Alarm Relays section in Specifications for important information.
Lists commands for basic setup, detailed setup, and diagnostics/service functions.
Verifies gas type, alarm thresholds, fault signals, and enters device Tag number.
Guides on navigating the Root menu (Device Setup, Gas, PV, AO, URV).
Accesses configurable parameters: Process Variables, Diag/Service, Basic Setup, Detailed Setup, Review.
Lists updated process variables: Gas type, Concentration, Analog Output.
Offers device/loop tests, calibration, and status/history options.
Provides access to tag, unit, range values, device info, and gas type.
Provides access to sensor info, gas type, output condition, device info, and write protect.
Lists all stored device parameters: tag, materials, software revision.
Details specific diagnostic and service functions available.
Includes Self-test, Response Test, and Reset functions.
Allows manual setting of analog signal output to a selected constant value.
Initiates calibration routines and sets calibration preferences.
Shows detector status: reference, sensor temp, operating mode, xmtr faults.
Provides historical data: running hours, max/min temps, cal logs, event logs.
Configures Tag, PV Unit, Range Values, Device Information, and Gas Type.
Sets the device tag number for identification.
Selects the Primary Variable unit (%LEL, ppm, or Vol %).
Sets URV, LRV, USL, and LSL for analog output scaling.
Displays device identification details like Tag, Date, Model, Revision.
Selects the type of gas detected for proper measurement.
Provides detailed detector parameters: Sensor Info, Gas Type, Output Condition, Device Info, Write Protect.
Displays sensor operational data: limits, temperature, absorption, coefficients.
Allows selection of specific gas types and associated coefficients.
Configures gas alarms, fault output modes, HART output, and communication ports.
Displays device identification details like Tag, Date, Model, Revision.
Enables/disables password and write protection for device parameters.
Configures gas alarms, fault output codes/values, HART output, and communication ports.
Sets high/low alarm levels and latching configuration.
Programs analog output for fault indication (Eclipse, PIR 9400, User Defined).
Configures HART poll address and number of request preambles.
Sets EQ DIP switch, Protocol (Modbus/ASCII), Poll Address, Baud Rate, Parity.
Displays device identification details like Tag, Date, Model, Revision.
Enables/disables password and write protection for device parameters.
Initiates calibration routines and sets preferences: Zero Trim, Calibrate Sensor, Cal Gas, Type, Cuvette Length.
Shows detector status: reference, sensor temp, operating mode, calibration, xmtr faults.
Provides historical data: running hours, max/min temps, cal logs, event logs.
Configures Tag, PV Unit, Range Values, Device Information, and Gas Type.
Sets the device tag number for identification.
Selects the Primary Variable unit (%LEL, ppm, or Vol %).
Sets URV, LRV, USL, and LSL for analog output scaling.
Displays device identification details like Tag, Date, Model, Revision.
Selects the type of gas detected for proper measurement.
Provides detailed detector parameters: Sensor Info, Gas Type, Output Condition, Device Info, Write Protect.
Displays sensor operational data: limits, temperature, absorption, coefficients.
Allows selection of specific gas types and associated coefficients.
Configures gas alarms, fault output modes, HART output, and communication ports.
Displays device identification details like Tag, Date, Model, Revision.
Enables/disables password and write protection for device parameters.
Configures gas alarms, fault output codes/values, HART output, and communication ports.
Sets high/low alarm levels and latching configuration.
Programs analog output for fault indication (Eclipse, PIR 9400, User Defined).
Configures HART poll address and number of request preambles.
Sets EQ DIP switch, Protocol (Modbus/ASCII), Poll Address, Baud Rate, Parity.
Guides on establishing HART communication and navigating the menu structure.
Describes typical RS-485/Modbus architecture and daisy-chaining with termination resistors.
Details the RS-485 interface layer and default serial settings (Modbus, 9600 baud, no parity).
Lists supported Modbus functions: Read holding registers, Preset single/multiple registers.
Defines memory blocks: Factory Constants, Device Configuration, Status, Control Words, Logs, Buffer.
Holds factory-set values: Device Type, Firmware Version, Serial Number, Manufacture Date.
Field adjustable parameters: Modbus Address, Baud Rate, Parity, Gas Type, Calibration settings.
Cross-references Alarm Relays section in Specifications for important information.
Real-time status: General Status Bits, Fault Status Bits, Gas Level, Calibration Step, Sensor Signals.
Bits indicating operating mode: Device Fault, Calibration Active, Warm up, Alarms, Write Protect.
More status info: Min/Max Temps, Hour Meter, Fixed 4-20 mA Value, Zero Ratio, Span Factor.
Bits indicating specific faults: Calibration Fault, Dirty Optics, EE Error, Bad Voltages, Ram Error.
Memory area to initiate device actions like calibration sequences.
Bits for Start/Abort Calibration, Warm up Mode, Alarms, Write Protect, Self Tests.
Stores fault and calibration log data with event IDs and timestamps.
Details event log entries: Event Hour, Event ID, and log storage capacity.
Provides code mappings for various Modbus parameters.
Codes for Baud Rates: 1200 (0), 2400 (1), 4800 (2), 9600 (3), 19200 (4).
Codes for Parity: None (0), Even (1), Odd (2).
Codes for Gas Types: Methane (0) through Special (9).
Codes for Calibration Gas Type: Same as Measured (0), Methane (1), Propane (2).
Codes for Calibration Method: Standard (0), Cuvette (1).
Options for Analog Fault Code: Eclipse (0), PIR 9400 (1), User Defined (2).
Codes for Calibration Steps: Waiting to Start (0) through Calibration Complete (7).
Configuration for alarm latching: Non-Latching (0), Latching (1).
Codes for Event Log entries: Empty (0) through High Alarm (5).
Codes for Calibration Log entries: Empty (0) through Failed Cal (3).
For applications not requiring custom software; uses standard terminal emulation software.
Uses identical installation procedures as standard Eclipse; LON cabling routing is different.
Table listing maximum cable lengths for various LON cable types.
Recommends shielded cable to prevent electromagnetic interference.
For best fault isolation, max LON wiring length should not exceed 1600 feet (500 meters).
Selected cable must meet job specifications; consult factory for alternatives.
Configuration via Det-Tronics Safety System Software (S3); HART port not for configuration.
HART port is functional but should not be used for device configuration; use S3 program.
LED operation is identical to all other PIRECL versions.
Operation of the remote calibration option is identical to all other PIRECL versions.
A 4-20 mA analog current output is not available with EQP PIRECL.
RS-485 communication is not available with EQP PIRECL.
Calibration procedure (normal and zero) is identical to all other PIRECL versions.
Refers to specific manuals for Eagle Quantum Premier system installation, configuration, and operation.
Details typical update rates for PIRECL in an EQP System.
Table showing transmit times to controller for PIRECL, Gas Alarms, Gas Level, and Device Fault.
Table showing programmed alarm logic (High Gas, Low Gas) for PIRECL in S3 software.
Table mapping VFD Faults (Calibration Fault, Dirty Optics) to Trouble LED and Relay.
Assigns unique LON addresses to each PIRECL detector on the EQP LON network.
Explains address assignment (5-250) and programming via DIP switches.
System ignores addresses set to zero or above 250; correct setting is crucial.
Details binary encoding of address using DIP switches and summing closed switch values.
Refers to EQP System manual for a convenience table for setting LON address switches.
Warns against assigning duplicated addresses; modules with same address use number given.
Recommends recording address number and device type on the Address Identification Chart.
Address is set only when power is applied; cycle power after changing address.
Address switches are located within the device enclosure; refer to Figure C-2.
Requires removing housing/module; remove power and de-classify hazardous areas before disassembly.
Perform disassembly with ESD grounding protection; use controlled environment or wrist strap.
Steps to access and set network address DIP switches, including tool requirements.
Recommend documenting all PIRECL and LON device addresses on the Address Identification Chart.
Align module connector carefully to avoid damage during reinstallation.
Describes a typical EQP system including Controller, DCIO, and LON field devices.
Warns that unauthorized service or misuse voids warranty and transfers liability.
Details FM/CSA approval for HART communicator connection and NEC/CEC compliance.
Emphasizes reading and adhering to live maintenance procedures to prevent ignition.
Specifies Class I, Division 1/2 ratings and ambient temperature limits for different areas.
Lists Uo, Io, Co, Lo values for intrinsically safe HART port according to NFPA 70.
Specifies the maximum cable distance allowed for communication.
Shows connection to a control device, referencing NFPA 70/CEC.
References Rosemount/Emerson HART communicator control drawings.
Requires appropriate third-party certification for connected control units for system approval.
Clarifies approval scope does not extend to connected apparatus processing the signal.
States PIRECL is CSA certified for combustible gas performance per CSA C22.2 #152.
States PIRECL is FM approved for combustible gas performance per FM 6310/6320 & ANSI/ISA-12.13.01.
References FM/CSA approval agency and prohibits modifications.
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