RKI Instruments Beacon 410 Operator's Manual
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RKI Instruments Beacon 410 Operator's Manual

Gas monitor
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Beacon 410 Gas Monitor
Operator's Manual
Part Number: 71-0131RK
Revision: P2
Released: 3/6/07
www.rkiinstruments.com

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Summary of Contents for RKI Instruments Beacon 410

  • Page 1 Beacon 410 Gas Monitor Operator’s Manual Part Number: 71-0131RK Revision: P2 Released: 3/6/07 www.rkiinstruments.com...
  • Page 2 Product Warranty RKI Instruments, Inc., warrants gas alarm equipment sold by us to be free from defects in materials, workmanship, and performance for a period of one year from date of shipment from RKI Instruments, Inc. Any parts found defective within that period will be repaired or replaced, at our option, free of charge.

  • Page 3: Table Of Contents

    Mounting the Beacon 410 Gas Monitor ........
  • Page 4 Using the Beacon 410 in a 4-wire Modbus System ....... .

  • Page 5: Chapter 1: Introduction

    Overview This chapter briefly describes the Beacon 410 Gas Monitor. This chapter also describes the Beacon 410 Gas Monitor Operator’s Manual (this document). Table 1 at the end of this chapter lists the specifications for the Beacon 410. About the Beacon 410 Gas Monitor The Beacon 410 is a fixed-mounted, continuous-monitoring controller.
  • Page 6 The Beacon 410 Gas Monitor Operator’s Manual uses the following conventions for notes, cautions, and warnings: NOTE: Describes additional or critical information. CAUTION: Describes potential damage to equipment. WARNING: Describes potential danger that can result in injury or death. Caution: refer to accompanying documentation...

  • Page 7: Specifications

    Specifications Table 1 lists specifications for the Beacon 410. Table 1: Beacon 410 Specifications Description Specification Input Power 100/115/220V ~ ±10%, 50/60Hz, 1.0/1.0/0.5A 24 V ± 10%, 2.5A VDC Construction (housing) Fiberglass/polyester with lexan window (NEMA 4X) Dimensions 12.5 in. H x 11.0 in. W x 6.4 in. D (31.8 cm H x 27.9 cm W x 16.3 cm D)

  • Page 8: Chapter 2: Description

    This chapter describes the Beacon 410’s external and internal component. External Description This section describes the housing and all external components of the Beacon 410. For the purposes of this description, the housing door is considered the front of the monitor.

  • Page 9: Internal Description

    The buzzer is on the bottom of the housing, behind the reset switch. The buzzer sounds an audible alarm to warn you of gas alarms and instrument failures. Internal Description This section describes the internal components of the Beacon 410. Optional Housing...
  • Page 10 These LED’s indicate data being received (RX) and transmitted (TX) when the Beacon 410’s Modbus output is operating. • Pilot LED The PILOT LED is on when the Beacon 410 is receiving incoming power, either AC or DC power. • Fail LED The fail LED turns on when the Beacon 410 is experiencing a fail condition.
  • Page 11 Beacon 410 (see “Chapter 10: Maintenance” on page 64). • Alarm 1 LED The alarm 1 LED is on when the Beacon 410 is experiencing an alarm 1 condition. • ALARM 2 LED The alarm 2 LED is on when the Beacon 410 is experiencing an alarm 2 condition.
  • Page 12 EXT DC/24V BATT - (or 24 V backup battery) - connection from 24 VDC power source RS-485 A RS-485 B Allow connection of the Beacon 410 to a Modbus network RS-485 C 12 • Internal Description Beacon 410 Gas Monitor Operator’s Manual...
  • Page 13 Relays The Beacon 410 includes eight channel relays and one common fail relay. It also includes four common/channel relays that can be defined as a group as channel or common relays. All the relays have single-pole double-throw (SPDT) contacts, also known as form C contacts, and are rated for 10 amps at 115 VAC (resistive).

  • Page 14: Power Switch

    AC & DC Circuit Protection Two AC fuses are used in the Beacon 410. The two fuses are located on the right side of main PCB, between the power switch and the AC in terminal strip (see Figure 1 on page 9 and Figure 3 on page 13).

  • Page 15: Chapter 3: Installation And Start Up

    Figure 4, then tighten the screws. 4. Prepare the selected mounting site as required to mount the Beacon 410. It should be mounted at eye level (4 1/2 to 5 feet from the floor). Refer to Figure 4 for the outline and mounting dimensions.

  • Page 16: Wiring The Beacon 410 Gas Monitor

    This section describes procedures to connect the AC power source, DC power source, Modbus wiring (refer to “Wiring the Beacon 410 in a Modbus System” on page 55), external alarms, recording devices, and detector heads. See Figure 5 on page 17 for a general diagram of all external wiring to the Beacon 410.
  • Page 17 Figure 5: Beacon 410 Gas Monitor External Wiring Diagram Beacon 410 Gas Monitor Operator’s Manual Wiring the Beacon 410 Gas Monitor • 17...
  • Page 18 The AC in terminal strip will accept 24 - 14 AWG wire. When selecting wire to connect the AC power source to the Beacon 410, be sure to meet the local electrical code. Also be sure to use an appropriate circuit breaker in the AC line close to the Beacon 410 that meets the local electrical code.
  • Page 19 24V BATT Figure 7: DC Power Wiring NOTE: The Beacon 410 will operate from the DC input down to 18.5 volts. If a self contained backup battery is used, see its operator’s manual for a description of its recharging characteristics. If your Beacon 410 includes the battery charging feature and a backup battery is used, the Beacon 410 will recharge the battery when AC power has returned after a power failure.
  • Page 20 Perform the following procedure to connect an analog signal recording device to the Beacon 410. The output at the recorder output terminals for each channel is a 4 - 20 mA signal that corresponds to the detection range of the detector head connected to that Beacon 410 channel.
  • Page 21 When a Beacon 410 is ordered from the factory, any detector heads that were ordered with it are already setup on particular channels of the Beacon 410. If you are adding an RKI detector head to your existing system, you will need to setup one of the unused channels to operate the detector head.
  • Page 22 Connecting User-Supplied 4 - 20 mA Transmitters The Beacon 410 may be used with a user supplied 2-wire or 3-wire 4 - 20 mA transmitter which runs on 24 VDC. When this is done, the Beacon 410 is normally setup at RKI Instruments with the following channel parameters: unit of measure, item name, and full scale.

  • Page 23: Starting Up The Beacon 410 Gas Monitor

    2. Complete all installation procedures described in the detector head or user supplied 4 - 20 mA transmitter operator’s manuals. 3. Verify that all wiring connections are correct and secure and that the Beacon 410’s power switch is in the OFF position.
  • Page 24 12. Perform the start-up procedure for each detector head or user supplied 4 - 20 mA transmitter as described in the detector head or user supplied transmitter’s operator’s manual. 24 • Starting Up the Beacon 410 Gas Monitor Beacon 410 Gas Monitor Operator’s Manual...

  • Page 25: Chapter 4: Operation

    • When the Beacon 410 is in its warm-up period, the signal output will be fixed at 4 mA (zero) for all channel types except oxygen. For oxygen channels, the output will be fixed at 17.4 mA (20.9% oxygen) while the Beacon 410 is in warm-up.

  • Page 26: Viewing And Resetting Min/Max Readings

    0.7 mA until the low power alarm is cleared. • If the Beacon 410 goes into a fail condition, the signal output is fixed at 0.7 mA until the fail alarm is cleared. •...

  • Page 27: Alarm Indications

    The battery charging circuit is designed to charge lead acid type batteries. If AC power is used as primary power and a backup battery is connected to the Beacon 410 ‘s EXT DC/ 24V BATT terminals as shown in Figure 7 on page 19, the battery charging feature will charge the battery if it is depleted and keep it charged with a charge current of approximately 100 mA.
  • Page 28 1 condition. Alarm 1 condition indications When the gas reading of an active channel reaches the alarm 1 setpoint, the Beacon 410 senses an alarm 1 condition. The Beacon 410 alerts you to an alarm 1 condition as follows: •...
  • Page 29 2 condition. Alarm 2 condition indications When the gas reading of an active channel reaches the alarm 2 setpoint, the Beacon 410 senses an alarm 2 condition. The Beacon 410 alerts you to an alarm 2 condition as follows: •...
  • Page 30 B, C, and D from their factory setting. Alarm 3 condition indications When the gas reading of an active channel reaches the alarm 3 setpoint, the Beacon 410 senses an alarm 3 condition. The Beacon 410 alerts you to an alarm 3 condition as follows: •...
  • Page 31 DC power condition. This condition only occurs when DC power is used as the primary or a backup power source Low DC Power Condition Indications The Beacon 410 senses a DC low power condition when the DC power source is 18.5 volts or less. WARNING: While in a low power condition, the Beacon 410 is not an active gas monitor.
  • Page 32 410, then connect a 24 VDC battery. 2. Determine and correct the cause of primary DC power loss. When the DC power source rises above 19.0 volts, the Beacon 410 begins the warm up process. 3. Verify that the Beacon 410 enters normal operation after its warm-up sequence.

  • Page 33: Chapter 5: Global Menu

    If you are installing a new Beacon 410, it has been set up at the factory. Use the Global Menu only if you want to change the instrument parameter factory settings.
  • Page 34 6. To save the channel parameter settings, press and release the UP /YES button.The screen will indicate that the Beacon 410 is saving the settings for a few seconds then the Beacon 410 will return to normal operation.
  • Page 35 Beacon 410 is in a gas alarm condition. If set to CAN”T SILENCE BUZZEZR, the buzzer cannot be silenced by the reset switch while the Beacon 410 is in a gas alarm condition. Beacon 410 Gas Monitor Operator’s Manual...

  • Page 36: Chapter 6: Configuration Menu

    If you are installing a new Beacon 410, it has been set up at the factory. Use Configuration Mode only if you want to change one or more channel’s parameter factory settings.
  • Page 37 8. To save the channel parameter settings, press and release the UP /YES button.The screen will indicate that the Beacon 410 is saving the settings for a few seconds. If you do not want to save the channel parameter settings, press and release the DOWN/NO button.
  • Page 38 1 circuit after the gas reading reaches the alarm 1 setpoint. (1 Second) ALARM-1 OFF DELAY The amount of time the Beacon 410 delays resetting the alarm 1 circuit after the alarm 1 condition passes. (0 Seconds) This parameter appears only if the ALARM-1 Latching parameter is set to SELF-RESETTING.
  • Page 39 (1 Second) alarm 2 circuit after the gas reading reaches the alarm 2 setpoint. Alarm-2 OFF DELAY The amount of time the Beacon 410 delays resetting the alarm 2 (0 Seconds) circuit after the alarm 2 condition passes. This parameter appears only if the ALARM-2 Latching parameter is set to SELF-RESETTING.
  • Page 40 (1 Second) alarm 3 circuit after the gas reading reaches the alarm 3 setpoint. Alarm-3 OFF DELAY The amount of time the Beacon 410 delays resetting the alarm 3 (0 Seconds) circuit after the alarm 3 condition passes. This parameter appears only if the ALARM-3 Latching parameter is set to SELF-RESETTING.
  • Page 41 0 - 100% LEL, the Beacon 410 will display a reading of 0 %LEL for gas readings from -1 %LEL to 1 %LEL. Beacon 410 Gas Monitor Operator’s Manual Viewing and Changing Channel Parameters • 41...

  • Page 42: Chapter 7: Input Setup Menu

    Selecting the Detector Head Input Type and Gas Setup NOTE: The Beacon 410 must be turned off before you can enter the Input Setup Menu. If your Beacon 410 is already installed and operating, make sure that turning the Beacon 410 off will not cause unwanted alarms before continuing.
  • Page 43 ENTER button to accept it. The PreDefined Gas Setup screen will appear. M E T H A % L E L / D N h e n T / E S C Beacon 410 Gas Monitor Operator’s ManualSelecting the Detector Head Input Type and Gas Setup • 43...
  • Page 44 9. NOTE: The CUSTOM choice is especially useful if you are connecting a 4 - 20 mA transmitter to the Beacon 410 that is not a gas detector, such as a temperature or pressure transducer. 9. If you selected the CUSTOM choice, perform the following steps to define the gas name, detection units, and full scale.
  • Page 45 If you do not want to setup more channels, press and release the DOWN/NO button and the Beacon 410 will exit the Input Setup Menu and begin its warm-up sequence. Beacon 410 Gas Monitor Operator’s ManualSelecting the Detector Head Input Type and Gas Setup • 45...

  • Page 46: Chapter 8: Calibration Mode

    Calibration Frequency Although there is no particular calibration frequency that is correct for all applications, a calibration frequency of every 3 to 6 months is adequate for most Beacon 410 applications. Unless experience in a particular application dictates otherwise, RKI Instruments, Inc.

  • Page 47: Detector Head Types

    This feature enables one person to perform calibration if the detector heads are mounted remotely from the Beacon 410. When zero air is applied to a detector head during a fresh air adjustment in Calibration Mode, the Beacon 410 will freeze the display...

  • Page 48: Entering Calibration Mode

    Beacon 410 will remain in Calibration Mode before automatically exiting Calibration Mode and entering normal operation. If the Beacon 410 exits Calibration Mode because of the automatic timeout, it will begin it’s warm-up sequence just as it does when it is turned To view or change the calibration timeout setting, do the following: 1.

  • Page 49: Performing A Calibration

    For example, during startup, it is typically only necessary to perform an air adjustment since the Beacon 410 is shipped with all the factory setup channels calibrated. However, for a complete calibration, you must perform both a fresh air adjustment and a gas response adjustment.
  • Page 50 9. For direct connect type detector heads, if the detector heads are in a fresh air environment, press and release the ENTER button. The Beacon 410 will perform a fresh air adjustment and the display will indicate AIR ADJUST PASSED for each direct connect type detector head if the air adjust is successful.
  • Page 51 See each detector head’s operator’s manual for instructions to apply zero air to each detector. The Beacon 410 will freeze the display reading at the lowest level reached while applying zero air (highest level for an oxygen detector head). After applying zero air for the required amount of time, usually two minutes, remove the zero air source from the detector.
  • Page 52 See each detector head’s operator’s manual for instructions on how to apply gas to each detector. When calibration gas is applied to a detector, the Beacon 410 will freeze the display gas reading at the highest level reached while the gas was applied (lowest for an oxygen detector head).

  • Page 53: Viewing Maximum Spans

    3 times the calibration gas concentration even if the Beacon 410 could have adjusted it higher. For example, if 50% LEL gas was used to calibrate a 0 - 100 % LEL channel, the highest maximum span value that will be displayed is 150 %LEL.
  • Page 54 5. Press and release the ESCAPE button to return to the initial Calibration Mode Screen that says You Have Entered the CALIBRATION Menu... and then press and release the DOWN/NO button to exit Calibration Mode and return to normal operation. 54 • Viewing Maximum Spans Beacon 410 Gas Monitor Operator’s Manual...

  • Page 55: Chapter 9: Rs-485 Modbus Output

    Overview This chapter describes the Beacon 410’s RS-485 Modbus output and how to configure the Beacon 410 to make use of it. It also discusses how to wire the Beacon 410 into a Modbus system. The Beacon 410 provides an RS-485 serial communications interface. It is a Modbus Slave Device, supporting 2-wire RS-485 Modbus RTU serial communications.
  • Page 56 Modbus system, this jumper must be installed in a Beacon 410 that is at the end of a Modbus line. Any Beacon 410 in a Modbus system that is not at the end of a line must have the termination jumper removed (see Figure 12 & Figure 13 below).

  • Page 57: Using The Beacon 410 In A 4-Wire Modbus System

    Figure 13: Multiple Beacon 410s in a Two Branch Configuration Using the Beacon 410 in a 4-wire Modbus System Although the Beacon 410 is a 2-wire Modbus RTU device, it can be used with a 4-wire Modbus controller if the system wiring is modified as follows: •...
  • Page 58 6. To save the channel parameter settings, press and release the UP /YES button.The screen will indicate that the Beacon 410 is saving the settings for a few seconds then the Beacon 410 will return to normal operation.

  • Page 59: Supported Modbus Functions

    NOTE: All Beacon 410s on a Modbus network must be configured with the same baud rate and parity, and each Beacon 410 must have a unique slave ID. For a Beacon 410 to participate on a network, the ENABLED/DISABLED setting must be set to ENABLED.
  • Page 60 The 6 bytes (characters) in these registers contain the channel gas reading in ASCII characters. Registers 40014 - 40015 The 4 bytes (characters) in registers 40014 and 40015 contain the channel gas units in ASCII characters. 60 • Supported Modbus Functions Beacon 410 Gas Monitor Operator’s Manual...
  • Page 61 The 6 bytes (characters) in these registers contain the channel gas reading in ASCII characters. Registers 40028 - 40029 The 4 bytes (characters) in registers 40028 and 40029 represent the channel gas units in ASCII characters. Beacon 410 Gas Monitor Operator’s Manual Supported Modbus Functions • 61...
  • Page 62 The 6 bytes (characters) in these registers contain the channel gas reading in ASCII characters. Registers 40042 - 40043 The 4 bytes (characters) in registers 40042 and 40043 contain the channel gas units in ASCII characters. 62 • Supported Modbus Functions Beacon 410 Gas Monitor Operator’s Manual...
  • Page 63 The 6 bytes (characters) in these registers contain the channel gas reading in ASCII characters. Registers 40056 - 40057 The 4 bytes (characters) in registers 40056 and 40057 contain the channel gas units in ASCII characters. Beacon 410 Gas Monitor Operator’s Manual Supported Modbus Functions • 63...

  • Page 64: Chapter 10: Maintenance

    Chapter 10: Maintenance Overview This chapter describes preventive maintenance procedures for the Beacon 410 and how to replace the AC fuses. It includes a troubleshooting guide for problems you may encounter with the Beacon 410. Preventive Maintenance Preventive maintenance of the Beacon 410 consists of daily, monthly, and quarterly procedures to ensure that the installed detector heads remain on zero (20.9 for oxygen) in...
  • Page 65 RKI for further instruction. situation when the • The Beacon 410 is reset switch is 3. Make sure that the Beacon 410 is not properly setup for pressed. properly setup in the Global Menu the desired reset •...

  • Page 66: Replacing The Ac Fuses

    1. Turn off or unplug all incoming power to the Beacon 410. 2. Open the Beacon 410 housing door, then place the power switch in the OFF position. 3. The fuses are located to the left of the AC in terminal strip. Use a flat-blade screwdriver to rotate the applicable fuse holder 1/4 turn counterclockwise.

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