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UTC Fire and Security Det-Tronics R8471B Instructions Manual

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Instructions
95-8401
H
S Controller
2
R8471B
2.1
8/07
95-8401

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Summary of Contents for UTC Fire and Security Det-Tronics R8471B

  • Page 1 Instructions 95-8401 S Controller R8471B 8/07 95-8401...

  • Page 2: Table Of Contents

    Table Of Contents Section I - General Information DESCRIPTION ....................1 FEATURES ......................1 APPLICATION INFORMATION ................1 SPECIFICATIONS ....................2 Controller .......................2 Sensor ......................3 SYSTEM OPERATION ..................3 Sensor ......................3 Optional Transmitters ...................4 Controller .......................4 Section II - System Installation INSTALLATION ....................9 Sensor Location .....................9 General Wiring Requirements ..............10 Sensor Wiring .....................10 Controller Wiring ..................12...

  • Page 3: Section I - General Information

    INSTRUCTIONS H 2 S Controller R8471B Section I General Information DESCRIPTION The R8471B Hydrogen Sulfide (H S) Controller is a single channel, rack mounted device that operates in the ranges of 0 to 100, 0 to 50 or 0 to 20 parts per million (ppm).

  • Page 4: Specifications

    The actual effect of H S on an individual depends on Maximum startup current is 0.6 ampere for 10 several factors: milliseconds. Power supplies with fold back current limiting are not recommended. 1. Concentration level of the exposure 2. Length of time exposed MAXIMUM RIPPLE—...

  • Page 5: Sensor

    SENSOR (2.5) ➛ ➛ ➛ ➛ 9.3 (23.6) OPERATING RANGE— 0 to 100 ppm. TEMPERATURE RANGE— Continuous operation: –40°F to +105°F (–40°C to +40°C). Intermittent operation: –40°F to +130°F (17.8) (–40°C to +55°C). Recommended storage: +32°F to +68°F (0°C to +20°C). HUMIDITY RANGE—...

  • Page 6: Optional Transmitters

    to ordinary solid state type sensors. A significant need for a separate transmitter. If the application property of the sensing element is its highly requires calibration at the sensor location or various specific response to H S. Since many commonly other special transmitter features such as relay encountered gases have little if any effect on the contacts or visible annunciators, a variety of Det-...
  • Page 7 Setpoints The R8471B Controller has independent Low, High, and Auxiliary alarm setpoints, with corresponding outputs. The programmed calibration gas concentration in ppm is also displayed and adjusted with the alarm setpoints. This value must be equal to the ppm concentration of the calibration mixture that is used for the span adjustment.
  • Page 8 to 20 ma output corresponds to levels from 0 to full — The FAULT LED flashes. scale. If a system fault is detected, the output drops to less than 1.0 ma. The current output can be — The digital display identifies the nature of the fault calibrated in the field to ensure maximum accuracy.
  • Page 9 An alarm condition will normally over-ride a fault The controller can operate in any of the following condition unless the fault condition occurred first. modes. Operating modes other than Normal are F10 and F2X will not over-ride an alarm. Faults that selected by pressing the appropriate pushbutton(s) affect the actual function of the controller (F50, F60, located on the controller front panel.
  • Page 10 — Low and/or Auxiliary LED flashes. NOTE The remote reset performs a reset function only. — Low and/or Auxiliary alarm output changes state. It cannot be used for entering other controller operating modes. — DC current output signal level corresponds to sen- sor input.

  • Page 11: Section Ii - System Installation

    SENSOR REPLACEMENT Section II System Installation This mode inhibits all controller outputs to allow replacement of the sensing element without removing power from the controller. In addition, this mode INSTALLATION automatically sets the factory default values for sensor calibration. Alarm setpoints and calibration NOTE gas concentration are not affected.

  • Page 12: General Wiring Requirements

    7. Exposure to excessive heat or vibration can The shielding of the cable should be stripped back cause premature failure of electronic devices, to permit the seal to form around the individual leads, and should be avoided if possible. Shielding rather than around the outside of the shield.
  • Page 13 The sensor must be oriented with the filter pointing NOTE down. Position the junction box with the conduit Coat the sensor threads with an appropriate connected to the upper opening. The sensor will be grease to ease installation, and also lubricate the installed in the lower opening on the junction box.

  • Page 14: Controller Wiring

    9. Check the sensor wiring to ensure proper connec- CONTROLLER WIRING tions, then pour the conduit seals and allow them to dry (if conduit is being used). NOTE The controller contains semiconductor devices that are susceptible to damage by electrostatic 10.
  • Page 15 CONTROLLER POSITIONS FOR: DIM. (A) DIM. (B) DIM. (C) DIM. (D) DIM. (E) FIRE INCH INCH INCH INCH INCH 19.00 482.6 18.30 464.8 17.36 440.9 4.00 101.6 6.97 177.1 15.06 382.6 14.36 364.7 13.42 340.9 11.13 282.6 10.43 264.9 9.49 241.1 9.16 232.7 8.46...
  • Page 16 R8471B CONTROLLER – – CURRENT OUTPUT – CURRENT OUTPUT 4 TO 20 MA CHASSIS GROUND CHASSIS GROUND 18 TO 32 POWER 18 TO 32 – POWER 24 VDC – – POWER SENSOR POWER SIGNAL – SENSOR GREEN SIGNAL – EXTERNAL RESET EXTERNAL RESET RESET HIGH ALARM...

  • Page 17: Controller Programming

    PREMIUM CONTROLLER operation, place it on the NC and center pins. The pin groups are identified as follows: The relay outputs (terminals 9 to 16) are programmed for the desired operation using the procedure J2 – High Alarm described in the “Controller Programming” section of J3 –...

  • Page 18: Installation Checklist

    SW1-1 CLOSED = LATCHING OPEN = NON-LATCHING SW1-2 CLOSED = NORMALLY ENERGIZED OPEN = NORMALLY DE-ENERGIZED INT = NON-ISOLATED EXT = ISOLATED HIGH ALARM AUXILLIARY ALARM NORMALLY OPEN/CLOSED LOW ALARM RELAY CONTACTS FAULT A1392 Figure 15—Programming Jumper Plugs and Switches INSTALLATION CHECKLIST 10.

  • Page 19: Setpoint Adjustment

    NOTE NOTE The controller has a power-up time delay to allow The RESET button should be released as soon the sensor output to stabilize before beginning as the controller has entered the Setpoint Display normal operation. During this time the outputs mode (after one second).

  • Page 20: Calibration

    the auxiliary alarm setpoint. Press the appropriate IMPORTANT button to obtain the desired reading on the digital To ensure adequate protection, the H S detection display. system must be calibrated on a regularly scheduled basis. 5. When no changes have been made for 5 sec- onds, the Auxiliary LED goes out, the CAL LED Loss of sensitivity can be caused by various fac- blinks, and the digital display indicates the cali-...
  • Page 21 2. Controller calibration. This method of calibra- 3. To exit the Sensor Replacement mode, press the tion typically requires two people, one person RESET button. The controller returns to the nor- at the controller and another at the sensor. All mal operating mode after a time delay.

  • Page 22: Current Output Calibration

    point). If a successful calibration cannot be accom- plished, replace the sensing element and recalibrate. 7. Remove the meter from the system output and reconnect the outputs for normal operating condi- If the microprocessor determines that the sensing ele- tions. ment is approaching the end of its useful life, “F10”...

  • Page 23: Sensing Element Replacement

    existing filter from the housing, then replace it with a NOTE new filter. Use care not to over tighten. If power was removed from the controller during the sensing element replacement procedure, the controller will automatically return to the Normal NOTE mode when power is restored (after a time delay).

  • Page 24: Troubleshooting

    the system. When replacing a controller, be sure that the jumper plugs and rocker switches of the replace- ment are the same as the original. Remove TROUBLESHOOTING power before removing the device from the mounting cage or plugging in the replacement Table 6 is intended to serve as an aid in locating the cause of a system malfunction.

  • Page 25: Device Repair And Return

    between 32°F and 68°F (0° to 20°C) and a relative ACCESSORIES humidity between 15 and 90 percent. Silicone Free Grease Always calibrate after replacing the sensing element. Open Frame Power Supply - 3.6 amperes at 24 vdc Open Frame Power Supply - 12 amperes at 24 vdc Refer to the “Ordering Information”...
  • Page 26 Recommended Test Form Detector Detector Date Date Date Remarks Number Location Installed Checked Calibrated 95-8401...
  • Page 27 Fault Record Sheet Detector Date Time System Status Operator Comments Affected 95-8401...
  • Page 28 95-8401...
  • Page 29 Detector Electronics Corporation 6901 West 110th Street Minneapolis, MN 55438 USA T: 952.941.5665 or 800.765.3473 F: 952.829.8750 W: http://www.det-tronics.com ® ® X3301 Multispectrum PointWatch Eclipse Eagle Quantum Premier Eagle Logic Solver E: detronics@detronics.com IR Flame Detector IR Combustible Gas Detector Safety System Safety System Det-Tronics, the DET-TRONICS logo, Eagle Quantum Premier, and Eclipse are registered trademarks or trademarks of Detector Electronics...

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