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STANDARD OUTPUT

A 4 to 20 mA current loop corresponding to 0 to 5 LFL-
meters is provided for connection to analog input
devices such as gas controllers, logic controllers, or
distributed control systems (DCS).  To convert the mA
reading to LFL-meters, use the following formula:

mA Reading –4

X

5

=

LFL-Meters

16

OPTIONAL RELAYS

The Model OPECL can be furnished with a factory
installed relay output board that provides two
programmable alarm relay outputs and one fault relay
output.  All relays are sealed and provide form C
(NO/NC) contacts.  The high and low alarm relays are
programmable and can be set for latching or non-
latching operation.  

When the high alarm relay is

configured for non-latching operation, the detector
must be connected to an auxiliary system that
provides the latching function

.  The low alarm

cannot be set above the high alarm threshold.  Alarm
configuration can be done with the HART or MODBUS
interface.  The onboard multicolor LED indicates a
LOW alarm condition via a flashing red color, and a
HIGH alarm condition via a steady red color.  The
OPECL internal magnetic switch or HART Field
Communicator can be used to reset latched alarms.
A short-duration magnetic switch activation of 1
second will reset latched alarms.  Holding the
magnetic switch closed for 2 seconds will start the
calibration sequence.  The external calibration line will
not reset latched alarm relays.

When the optional relay output board is specified,
OPECL is certified for EEx d operation.  

COMMUNICATION

The standard OPECL system provides an analog 4-20
mA signal output, with HART and RS-485 MODBUS
serial communication from the receiver module.

RECORDING CAPABILITY

Non-volatile memory is provided to save the 10 most
recent calibrations, alarm/fault events, and
minimum/maximum operating temperature history.  A
real time clock is provided to record operating service
time and to time stamp events.  This information is
accessible using HART and MODBUS communication.

DETECTION RANGE

The standard OPECL model can cover a range of 5 to
60 meters.  For extended range applications, a long
range model can be ordered to provide coverage from
60 to 120 meters.

3

95-8556

2.1

Содержание Open Path Eclipse OPECL

Страница 1: ...Infrared Hydrocarbon Gas Detector Open Path Eclipse Model OPECL Detector Electronics Corporation 6901 West 110th Street Minneapolis Minnesota 55438 USA Tel 952 941 5665 or 800 765 3473 Fax 952 829 87...

Страница 2: ...1 Wiring Cable Requirements 11 Power Wiring Size and Maximum Length 12 Optional Relays 12 Wiring Procedure 13 STARTUP 16 ALIGNMENT 16 Overview 16 Basic Alignment Procedure 16 Fine Alignment Procedure...

Страница 3: ...along with mounting fixture hardware Both modules are powered from an external 24 volt DC supply The receiver provides the measurement signal outputs and is furnished with an onboard status indicatio...

Страница 4: ...ture A xenon lamp illuminates the linear detection path from the transmitter to the receiver In the event that the primary lamp fails the back up lamp is brought into service The receiver recognizes t...

Страница 5: ...on via a flashing red color and a HIGH alarm condition via a steady red color The OPECL internal magnetic switch or HART Field Communicator can be used to reset latched alarms A short duration magneti...

Страница 6: ...communicator for system setup commissioning and diagnostics Onboard LED Indicator Indicates normal fault and backup lamp operation status Green indicates normal operation Amber indicates operation in...

Страница 7: ...this output The factory default for full scale 5 LFL meters output is 20 mA MODBUS interfaces also have the ability to calibrate the 4 mA and 20 mA levels FAULT INDICATION Faults and status conditions...

Страница 8: ...or MODBUS communication FAULT RELAY Form C Type NO NC Energized during Normal mode De Energized on Fault or loss of power Contact Rating 5 amperes at 30 VDC Non Latching Operation only not programmab...

Страница 9: ...001 see Appendix B Class I Div 2 Groups A B C D T4 Type 4X CENELEC Standard range and long range models 0539 II 2 G DEMKO 03 ATEX 135898X EEx de ib IIC T5 T5 Tamb 40 C to 60 C IP67 Transmitter Receive...

Страница 10: ...diameter pipe Refer to Figure 3 for mounting dimensions SHIPPING WEIGHT Transmitter with mounting plate 35 pounds 16 kg Receiver with mounting plate 35 pounds 16 kg WARRANTY 3 year limited warranty f...

Страница 11: ...por density and flashpoint should be identified and used to assist in selecting the optimum detector mounting locations within the area The detector must be installed by qualified personnel only follo...

Страница 12: ...longterm outdoor operation in very cold climates is intended extra shielding covers are recommended to prevent accumulation of snow and ice on the windows Deluge and Flooding The modules are rated IP6...

Страница 13: ...source of 24 Vdc power is being utilized verify that system requirements are met NOTE If disconnection of power is required separate disconnect capability must be provided WIRING CABLE REQUIREMENTS A...

Страница 14: ...y the resistance of the wire ohms foot value available in wire manufacturer s specification data sheet 3 Divide by 2 For example Consider an installation using 18 AWG wiring with a power supply provid...

Страница 15: ...g terminal configuration for the OPECL receiver with relays Figures 11 through 14 show the 4 to 20 mA output of the OPECL receiver in various wiring schemes Figure 15 shows the OPECL wired to a Model...

Страница 16: ...N 4 to 20 MA B2051 TOTAL LOOP RESISTANCE 250 OHMS MINIMUM 600 OHMS MAXIMUM Figure 12 Detector Wired for Non Isolated 4 to 20 ma Current Output Sourcing Figure 11 Detector Wired for Non Isolated 4 to 2...

Страница 17: ...Sinking CURRENT OUTPUT CHASSIS GROUND POWER SENSOR EXTERNAL RESET HIGH ALARM HIGH ALARM OC AUX ALARM AUX ALARM OC LOW ALARM LOW ALARM OC FAULT FAULT OC 1 3 4 5 6 7 8 9 10 11 12 13 14 15 16 18 TO 32 VD...

Страница 18: ...g all OPECL systems The following instructions cover the use of the Telescope Alignment Tool 3 Calibration Magnet 4 For installations with module separation distances between 5 and 30 meters a range r...

Страница 19: ...e to dead center on the window of the receiver module Tighten the vertical alignment locking nuts so that no movement will occur 17 95 8556 2 1 VERTICAL ALIGNMENT LOCKING NUTS 2 VERTICAL ADJUSTMENT BO...

Страница 20: ...y performing a zero calibration 15 Perform a zero calibration Refer to Zero Calibration in the Calibration section of this manual Any faults or alarms that may be present as a result of the alignment...

Страница 21: ...eceiver module s onboard HART communication port 2 Turn on the HART communicator and check for OPECL device recognition When HART communication is established the OPGD Rx Root menu will be displayed o...

Страница 22: ...bject such as cardboard until a beam block fault is generated CALIBRATION CALIBRATION OVERVIEW Although routine calibration of the Open Path Eclipse is normally not required the device supports non in...

Страница 23: ...Zero Calibration 1 Apply magnet for 2 seconds minimum to initiate calibration A The onboard LED turns to steady red B The current output decreases to 1 mA 2 When zero calibration is complete A The onb...

Страница 24: ...ipment transportation prepaid to the factory in Minneapolis 22 95 8556 2 1 Fault Condition Corrective Action Low 24 volts 24 vdc operating voltage is out of range Verify proper wiring to the detector...

Страница 25: ...t flange internal 009186 001 Spare Pan Tilt Mounting Kit for one OPECL module only 007907 001 Sun Shield for one module 008925 001 Spare electronics lamp module for OPECL transmitter 008926 001 Spare...

Страница 26: ...priate DDL s for the Open Path Eclipse are included within your Communicator To review the device descriptions programmed into your HART Communicator 1 From the Main menu press to access Offline menu...

Страница 27: ...igh Alarm Level 2 High Alarm Latch 3 Low Alarm Level 4 Low Alarm Latch RTC Menu 1 RTC Menu Setup Menu 1 OPGD Option Menu 2 Hart Output Menu 3 Com 485 Menu 4 Config Flt Output Menu 5 Gas Type Menu 6 Ra...

Страница 28: ...first menu displayed is the OPGD RX Root menu To select any of the 5 menu options shown highlight the desired option using the up down arrow key and then press the right arrow key COMMONLY USED HART...

Страница 29: ...RITTEN UNLESS OTHERWISE SPECIFIED DIMENSION TOLERANCE INCH MM INCH MM REMOVE ALL BURRS BREAK ALL EDGES AND SHARP CORNERS THIS DRAWING AND SPECIFICATION CONTAIN PROPRIETARY INFORMATION AND ANY REPRODUC...

Страница 30: ...Printed in USA Detector Electronics Corporation 6901 West 110th Street Minneapolis Minnesota 55438 USA Tel 952 941 5665 or 800 765 3473 Fax 952 829 8750...

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