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Kele KGD-12-AM User Instructions

Ammonia detector, controller and transducer
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Kele KGD-12-AM
Ammonia Detector, Controller and Transducer
User Instructions

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Summary of Contents for Kele KGD-12-AM

  • Page 1 Kele KGD-12-AM Ammonia Detector, Controller and Transducer User Instructions...
  • Page 2 Kele KGD-12-AM Operation Manual Important: Keep these User Instructions for reference P a g e...

  • Page 3: Table Of Contents

    Kele KGD-12-AM Operation Manual TABLE OF CONTENTS GENERAL SAFETY INFORMATION Intended Use List of Warnings and Cautions USE INSTRUCTIONS AND LIMITATIONS Use For Do Not Use For General Description Features Specifications INSTALLATION AND OPERATING INSTRUCTIONS Location Connections Installation 4-20mA Output Diagram...

  • Page 4: General Safety Information

    NH3 and provide feedback and automatic exhaust fan control to help reduce NH3 concentrations in industrial refrigeration, warehouses, hockey rinks or other commercial applications. The KGD-12-AM is a low level meter capable of displaying from 0-100 ppm of Ammonia. The KGD-12-AM is factory calibrated and 100% tested for proper operation, but can also be calibrated in the field.

  • Page 5: Use For

    The KGD-12-AM is not intended for use in hazardous locations. Do not mount the KGD-12-AM where the normal ambient temperature is below 0°F or exceeds 125°F (below -18C or above 52C). The KGD-12-AM mounts on a 4x4 electrical box supplied by the contractor.

  • Page 6: Features

    Kele KGD-12-AM Operation Manual The KGD-12-AM has a field replaceable, electrochemical sensor (expected life of 2+ years) and optional gas test and calibration kits. The KGD-12-AM is a low level meter capable of displaying from 0-100 ppm of Ammonia. Features •...

  • Page 7: Installation And Operating Instructions

    Location A KGD-12-AM is normally mounted high in the room on a wall or column one foot below the ceiling in a central area where air movement is generally good. Use the same spacing as for smoke detectors, 30-foot centers, 900 square feet per detector (465 sq.

  • Page 8: Installation

    KGC-120 panel. Installation The KGD-12-AM mounts on a 4” square (or 4x4) electrical box supplied by the contractor. Do not mount the KGD-12-AM inside another box, unless it has good air flow through it.
  • Page 9 Kele KGD-12-AM Operation Manual The alarm relay can be configured to normally open (default) (N.O.) or normally closed (N.C.) and will activate if the gas concentration exceeds alarm set point. It will deactivate once the gas concentration drops below the alarm set point. Note that the “disable”...
  • Page 10 Kele KGD-12-AM Operation Manual Figure 3-11 12-Series Stand Alone Diagram 10 | P a g e...
  • Page 11 Kele KGD-12-AM Operation Manual Figure 3-13 12-Series Alarm Control Panel Diagram Typical connection to the KGC-120 Detection and Ventilation Control Panel 11 | P a g e...

  • Page 12: Power Up

    Power Up The KGD-12-AM steps through an internal self-test cycle for the first 1 minute that it is powered. The unit will execute the test cycle any time power is dropped and reapplied (i.e. power failure). During the self-test cycle the unit will display the Firmware Version number and the gas type, then count down from 60 to 0 (if the display option is “on”) and finally go into normal operation.
  • Page 13 The default Trouble Fan Setting condition is OFF • The default 4-20mA Output setting is On To change settings, remove the Philips screw on the front of the KGD-12-AM. Pull off the front cover of the unit. 13 | P a g e...
  • Page 14 Kele KGD-12-AM Operation Manual Selecting Default Configuration – “dEF” To select the Default Configuration, in normal mode, push the Next button to get to “Con” or the Configuration menu. Then push the Enter button to enter the Con menu. The first selection is the “dEF” or Default setting. Push Enter. If it is already in Default configuration, there will be no action.
  • Page 15 Kele KGD-12-AM Operation Manual the display is “On” push Next to turn it “OFF” (flashing) then push Enter to confirm the change (solid) and push Enter again to return to “dSP” in the Con menu. Push Next until “End” is displayed then push Enter to get back to normal operation.

  • Page 16: Onboard Diagnostics

    Onboard Diagnostics The KGD-12-AM monitors all critical functions of the unit through software diagnostics that continuously test and verify unit operations. If a problem is found, the unit will switch to a fail-safe/error mode or trouble condition. In this error mode, the Alarm relay will be activated, the 4-20 mA current loop will go to 24 mA, the unit will display the error code, the green status indicator LED light will flash and the buzzer will chirp intermittently.

  • Page 17: Maintenance

    MAINTENANCE The KGD-12-AM requires periodic maintenance. The unit uses an electrochemical sensor with a 2-3 year life expectancy that can be tested, calibrated and replaced in the field. The KGD-12-AM replacement sensor is available through your local representative or from Kele.
  • Page 18 4. Remove the Shorting Spring from the new sensor if installed and insert the new sensor into the socket. 5. Power up the unit. The KGD-12-AM steps through an internal self-test cycle for the first 1 minute that it is powered. During the self- test cycle the unit will display the Firmware Version number, then count down from 60 to 0 and finally go into normal operation.

  • Page 19: Operation Test

    Operation Test Check that the green KGD-12-AM status indicator LED light is illuminated continuously. If not, do not proceed with the tests. If the unit is in error mode contact your local representative or Kele technical service representative for information on resolving the problem.

  • Page 20: Ammonia Test

    Kele KGD-12-AM Operation Manual If the green status indicator LED light is off or flashing, refer to the General section above. Locate the switch labeled ENTER/TEST on the left side of the printed circuit board. Push the Test switch once.
  • Page 21 Ensure sensor inlets are unobstructed and is free of debris General The KGD-12-AM can be bump-tested or calibrated with the AM-FCK with Ammonia gas, regulator and test hood, available through your local representative or from Kele. Contents of the Cal-Kit 5 ●...
  • Page 22 Turn on the regulator to start the gas flow and wait with the gas applied continuously. With the display function turned “On”, the KGD-12-AM will show the current concentration of gas or “0” (zero) in clean air. When the gas concentration reaches the Fan Relay setting (20 ppm, for example) the display will flash back and forth between “FAn”...

  • Page 23: Field Calibration Procedure

    Detector has 4-20 mA option set to “OFF”. Set 4-20mA option to “On” and repeat the test. Remove the gas from the sensor. Re-assemble the KGD-12-AM (make sure the LED is aligned with the front case hole). 4-20 current loop test is complete.
  • Page 24 To return to Normal Mode press Enter and then press Next until “End” is displayed. Press Enter to return to Normal Mode. Calibration Remove the Philips screw on the front of the KGD-12-AM. Pull the front cover of the unit off. Assemble the 25 ppm gas cylinder and regulator together.
  • Page 25 KELE FIXED GAS DETECTION PRODUCTS LIMITED WARRANTY Kele warrants the KGD-12-AM gas detector will be free from defective materials and workmanship for a period of two (2) years from date of manufacture (indicated on the inside cover of the KGD-12-AM), provided it is maintained and used in accordance with Kele instructions and/or recommendations.

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