Det-Tronics LS2000 Instructions Manual
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Det-Tronics LS2000 Instructions Manual

Line of sight infrared hydrocarbon gas detector
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See also: Instruction Manual
Instructions
Line of Sight
Infrared Hydrocarbon Gas Detector
Model LS2000
2.2
Rev: 3/15
95-8714

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Summary of Contents for Det-Tronics LS2000

  • Page 1 Instructions Line of Sight Infrared Hydrocarbon Gas Detector Model LS2000 Rev: 3/15 95-8714...
  • Page 2 . . . . . . . . . . . . . . . . . . . .

  • Page 3: Application

    Both modules must be installed at application approximately the same elevation and must be The Model LS2000 is a line of sight infrared aligned to point directly at one another. No gas detection system that provides continuous direct electrical interconnection between the two monitoring of combustible hydrocarbon gas modules is required.

  • Page 4: Operation Overview

    As flammable hydrocarbon gases intersect the DETECTION RaNgES light beam between the two modules, certain The LS2000 is offered in two detection ranges in IR wavelengths are absorbed by the gas, while order to meet customer needs, as listed below: other IR wavelengths are not.
  • Page 5 Table 1—LFL-m to PPM-m Conversion Cloud Cloud Cloud path length Concentration Concentration Concentration lfl-m ppm-m (lfl) (v/v, by volume) (ppm) Methane 100% 5.0% 50000 50000 Methane 100% 5.0% 50000 100000 Methane 100% 5.0% 50000 150000 Methane 100% 5.0% 50000 200000 Methane 100% 5.0%...

  • Page 6: Optional Relays

    When the optional relays are ordered, the HART handheld or MODBUS device), which LS2000 receiver is certified for Ex d operation. will indicate a fault if the link is broken. The “link fault” can only be detected and annunciated by OpTIONal COmmUNICaTION lINk the receiver.

  • Page 7: Operation

    LED. faCTORy RESET COmmaND mODUlE IDENTIfICaTION The LS2000 provides a factory reset command See Figure 3 for identification of the transmitter that sets all user configurable parameters and receiver modules. The functional and back to their default settings.

  • Page 8: Operating Modes

    A2647 Figure 3— Identification of Transmitter and Receiver Modules OpERaTINg mODES Normal The LS2000 has three operating modes: warm- After warm-up mode is completed, the device up, normal (measuring / monitoring), and automatically enters the Normal mode, and all calibrate.

  • Page 9: Heater Control

    CONTROl Table 6—Typical LS2000 Window Temperature Rise (Degrees C) for Various Heater Settings and Ambient Temperatures The LS2000 optics in both transmitter and receiver are heated to provide moisture and ice ambIENT TEmpERaTURE lS2000 window resistance. These heaters are microprocessor Temperature Rise (C) -55°C...
  • Page 10 Table 5—LS2000 Receiver Fault Conditions 4-20ma Output Relays Status User alarm Default advanced fault Relay Defined Relay 4-20 Fault Yellow - Solid for 10 seconds, De-energized Enabled (Open Loop) followed by 1 Pulse Detection RAM Fault De-energized Disabled Yellow - Solid...
  • Page 11 2. Transmitter lamp voltage should be lowered to reduce signal to receiver. Low Voltage Supply voltage to LS2000 is less than 16V. Supply voltage needs to rise above 16V. Check supply voltage and power wiring. High Voltage Supply voltage to LS2000 is greater than Supply voltage needs to drop below 33V.

  • Page 12: Status And Fault Indication

    SpEcificationS STaTUS aND faUlT INDICaTION Status and fault conditions are indicated using oPERATInG VoLTAGE (Both Modules)— the 4-20 mA analog signal output. Signaling 24 Vdc nominal. Operating range is 18 to 30 Vdc. modes include two predefined modes, and a Ripple cannot exceed 0.5 volts P-P.
  • Page 13 MISALIGnMEnT ToLERAnCE— Programmable for Latching or Non-Latching ±0.8 degree minimum (~±56cm @ 40m; Operation. ~±168cm @ 120m). The LS2000 is third party Low Alarm: 0.5 to 4.5 LFL-meters verified to maintain specified accuracy within the (default = 1 LFL-meters, Non-latching).
  • Page 14 See “Mounting Transmitter Electronics Module: 10.4 lbs (4.7 kg) Instructions” for brow installation procedure. Receiver Electronics Module: 7.8 lbs (3.6 kg) InGRESS PRoTECTIon— NEMA Type 4X certified, IP66/67 (Det-Tronics verified). 95-8714...
  • Page 15 (12.7) (12.7) (12.7) (12.7) 10.8 (27.5) 10.8 (27.5) 14.3 16.1 (36.3) (40.8) (18.5) (20.1) (17.9) (17.8) (20.6) (19.1) A2660 A2659 Figure 4—Mounted Dimensions of LS2000 Transmitter Figure 5—Mounted Dimensions of LS2000 Receiver in Inches (cm) in Inches (cm) 95-8714...

  • Page 16: Important Safety Notes

    However, it must be properly installed the LS2000. In addition, the physical and fire and used only under the conditions hazard properties of the vapor, such as vapor...
  • Page 17 The LS2000 provides the option to turn off the Green LED in the Normal mode when no alarms Consideration of the following system location or faults are occurring.

  • Page 18: Module Mounting Recommendations

    RECOmmENDaTIONS sealing capability. A minimum torque of 20 foot-pounds is required to maintain LS2000 modules must be affixed to a solid, ingress protection. To maintain the IP or non-vibrating structure capable of supporting a NeMA ratings when using NPT stopping...
  • Page 19 INSTALLATIONS NEAR MAXIMUM HEIGHT TYPICALLY REQUIRE BRACING TO ENSURE NO MOVEMENT OF THE LS2000 DETECTOR. Figure 6—Example of Bracing Added to Vertical Mounting Poles for Increased Robustness of LS2000 Installation Figure 8—LS2000 Gas Detector Mounted to Flat Surface Figure 7—LS2000 Gas Detector Mounted to Vertical Post (Refer to "Dimensions"...

  • Page 20: Ls2000

    Always install a properly sized master power Left/right = 0” fuse or breaker on the system power circuit. Up/down = 0” if the top U-bolt for the LS2000 NoTe is mounted 1” lower than the top U-bolt of the The use of shielded cable in conduit OPECL detector.

  • Page 21: Optional Relays

    NoTe AC voltage should not be switched directly For proper HART communication, it using the LS2000 relays. The use of an external is required that an analog signal loop relay is required if AC voltage must be switched resistance of 250 to 500 ohms be by the LS2000 relays.
  • Page 22 INTR B INTR A LO ALARM NC RESET/CAL INTR GND LO ALARM NO SHIELD SHIELD HI ALARM COM RS-485 B RS-485 A HI ALARM NC mA– HI ALARM NO A2643 HART Figure 13—Wiring Terminal Identification for LS2000 Receiver with Relays 95-8714...
  • Page 23 0V COM SPARE 0V COM SPARE +24 VDC 0V COM +24 VDC 0V COM 0V COM +24 VDC 0V COM +24 VDC SHIELD SHIELD SHIELD SHIELD INTR B INTR A INTR B INTR A INTR GND INTR GND SHIELD SHIELD RS-485 A SHIELD SHIELD...

  • Page 24: Startup

    Figure 18—Wiring the LS2000 Receiver for Benchtop Testing/Programming using HART Protocol StaRtup When the LS2000 is installed and wired as described in the “Installation” section, it is ready for commissioning. If the application requires that specific changes be made to the factory settings, HART communication will be required.

  • Page 25: Alignment

    SHIELD SHIELD recommended. INTR B INTR A INTR GND SPARE 2. LS2000 Alignment Tool. The alignment tool SHIELD SHIELD is recommended for use in commissioning all LS2000 systems. The following instructions RS-485 B RS-485 A cover the use of the Alignment Tool.
  • Page 26 VERTICAL ADJUSTMENT BOLT WITH LOCK NUT (2) DETECTOR MOUNTING ASSEMBLY Figure 21—LS2000 Mounting and Alignment Bracket (Receiver Module Shown) 6. Install the Alignment Tool onto the receiver module by inserting the captive thumbscrews into the threaded holes on the faceplate. See Figure 22.

  • Page 27: Aperture Kit For Short Range Applications

    The LS20 0 0 test film packet consists of five separate test films. Table 7 shows 12. When proper alignment has been achieved, the response of the different LS2000 gas tighten the Ver tical Adjustment Bolts settings to each of the five test films. Alarm and Locking Nuts to 90 ft-lbs (122 N•m)

  • Page 28: Communicator

    1. Connect the handheld HART communicator Attach the aperture to the front of the LS2000 to the receiver module’s 4-20 mA circuit. transmitter module using the captive screws provided. For best weather protection, the 2.

  • Page 29: Transmitter Lamp Voltage

    1, 2, 5, 10, 20, 50 and 100; ideal gain settings are 2, 5, and 10. CalIbRaTION OvERvIEw Span calibration is not required. The LS2000 A gain of 1 indicates that the system may be supports non-intrusive field zero calibration, near saturation (signal strength is too high).

  • Page 30: Calibration Initiation

    NoTe Calibration Using magnetic Switch Calibration will time out if unsuccessful after 10 minutes. The LS2000 receiver provides an onboard magnetic calibration/reset switch for non- NoTe intrusive calibration capability. The magnetic To abort an in-process calibration, repeat switch is actuated by holding a calibration the calibration initiation sequence (e.g.

  • Page 31: Maintenance

    Refer to the LS2000 Safety Manual options for the LS2000. The test film method ( n u m b e r 9 5 - 8 7 2 7 ) f o r s p e c i f i c...

  • Page 32: Troubleshooting

    A Fault status is indicated by a yellow LED and also by the 4-20 mA output. Refer to Table 8 for assistance in correcting malfunctions with the LS2000 Detector. Table 8—Troubleshooting Guide fault Condition Corrective action Low 24 volts 24 vdc operating voltage is out of range.

  • Page 33: Receiver Electronics Module

    LS2000. 1. Bypass system alarms as needed, then Receiver remove 24 Vdc power from the LS2000 Fully tighten the retainer ring on the receiver detector. module, then tighten the set screw to prevent the ring from being turned.

  • Page 34: Device Repair And Return

    REpaiR and REtuRn The LS2000 IR Hydrocarbon Gas Detector is 8. Pe r fo r m t h e align m e nt pro c e du re as not designed to be repaired in the field. If a previously described in this manual.

  • Page 35: Ordering Information

    SpaRE paRTS part Number Description When ordering, please refer to the LS2000 Model Matrix: 102740-002 Calibration Magnet 005003-001 Silicone Free Grease (1 oz.) alIgNmENT EqUIpmENT 107427-079 O-Ring, 3.75” i.d., for wiring part Number Description compartment cover 012287-002 L S 2 0 0 0 A l i g n m e n t To o l...
  • Page 36 Rm Spare Receiver Electronics Module *The LS2000 is factory calibrated to Methane, Propane, and Butane gas types. This selection indicates which gas type the device was configured to detect when it left the factory. This selection can be changed in the field via HART or MODBUS.

  • Page 37: Appendix A - Fm Approval Description

    Performance verified in accordance with FM 6325, ANSI/ISA 12.13.04 for Methane. LS2000 hazardous location and performance testing was successfully completed down to –55°C. However, the FM approved rating is limited to –50°C as there are no conduit fittings, cables, or cable glands that are presently listed for use below –50°C in the US.
  • Page 38 T90: 2 seconds (5.0 LFL-meters applied). NoTeS Approval of the LS2000 does not include or imply approval of the apparatus to which the detector may be connected and which processes the electronic signal for eventual end use. In order to maintain an approved system, the apparatus to which the detector is connected must also be approved.

  • Page 39: Description

    The following items, functions and options describe the CSA certification. appROval Line of Sight Infrared Hydrocarbon Gas Detector, Model LS2000. C22.2 No. 30-M1986 Explosion-proof enclosures for use in Class I hazardous locations. C22.2 No. 213-M1987 Non-incendive Electrical Equipment for use in Class I, Division 2 hazardous locations.
  • Page 40 T90: 2 seconds (5.0 LFL-meters applied). NoTeS Approval of the LS2000 does not include or imply approval of the apparatus to which the detector may be connected and which processes the electronic signal for eventual end use. In order to maintain an approved system, the apparatus to which the detector is connected must also be approved.

  • Page 41: Appendix C - Other Approvals

    OThER appROvalS The following items, functions and options describe various other approvals applicable to the LS2000. SIl appROval IEC 61508: 2010 Parts 1-7 Certified SIL 2 Capable. Refer to the Safety Reference Manual (form number 95-8727) for details.

  • Page 42: Appendix D - Hart Communication

    4. Review the different manufacturers and models to determine the installed HART-compatible devices in your Communicator. If you cannot find the LS2000 device on your Communicator, the device revision you are looking for is not programmed into the Memory Module. In this instance, you are limited to what is available using the generic interface built into your HART Communicator.
  • Page 43 STRUCTURE This section displays the menu trees for the LS2000. The Menu tree shows the primary commands and options available when using menu selections. 95-8714...
  • Page 44 7) Year 8) Write Protect CONNECTIONS aND haRDwaRE The HART Communicator can interface with the LS2000 from the control room or from any wiring termination point in the analog output signal loop. To communicate, connect the HART m Menu communicator in parallel with the LS2000 analog signal or load resistor. The connections are non- Alarm Level polarized.
  • Page 45 Phone: 952.946.6491 Corporate Office © 2015 Detector Electronics Corporation. All rights reserved. Toll-free: 800.765.3473 6901 West 110 Street Det-Tronics manufacturing system is certified to ISO 9001— Fax: 952.829.8750 Minneapolis, MN 55438 USA the world’s most recognized quality management standard. det-tronics@det-tronics.com www.det-tronics.com...

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