Macurco™ GD-6 Combustible Gas Detector, Controller and Transducer User Instructions Important: Keep these User Instructions for reference
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 Installation Garage diagram 4-20 mA Output diagram Multiple Device diagram Alarm Control Panel diagram DVP-120 Control Panel diagram Alternate Alarm Panel Power Up Operation Default - Factory Settings Display setting Buzzer setting Alarm Relay setting Alarm Relay Configurati
GENERAL SAFETY INFORMATION Intended Use The Macurco GD-6 is a low voltage, dual relay Combustible Gas detector, controller and transducer. The GD-6 has selectable 4-20 mA output, buzzer and digital display options. It is an electronic detection system used to measure the concentration of Combustible Gas and provide feedback and automatic exhaust fan, louver or valve control to help reduce gas concentrations in parking garages, battery rooms or other commercial applications.
USE INSTRUCTIONS AND LIMITATIONS ! WARNING Each person using this equipment must read and understand the information in these User Instructions before use. Use of this equipment by untrained or unqualified persons, or use that is not in accordance with these User Instructions, may adversely affect product performance and result in sickness or death.
Features ETL Listed to UL 61010-1 and CAN/CSA C22.2 No 61010-1 Low level meter capable of displaying from 0-50% LEL Selectable target gas – Methane(NG), Propane(LP) or Hydrogen(H2) Selectable fan and alarm relay activation 5 A SPDT fan relay controls starters of exhaust fans 0.5 A N.O. or N.C.
! WARNING This detector helps monitor for the presence and concentration level of a certain specified airborne gas. Misuse may produce an inaccurate reading, which means that higher levels of the gas being monitored may be present and could result in overexposure and cause sickness or death. For proper use, see supervisor or User Instructions, or call Technical Service at 1-877-367-7891. Location A GD-6 mounting height is dependent upon the target gas.
8. The Fan Relay can be configured for latching or non-latching (default) when activated (when the gas concentration exceeds fan relay set point). Once latched in, power will need to be interrupted or the “TEST” button pressed to un-latch the relay condition. 9. The Fan Relay will engage if the fan setting Combustible Gas concentration is exceeded for longer than the Fan Relay Delay time.
Power Up The GD-6 cycles through an internal self-test cycle for the first 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, then count down from 60 to 0 (if the display setting is “On”) and finally go into normal operation.
Gas Selection To select the Gas Option, in normal mode, press the Next button once to display the current gas selection (mE is Methane, Pro is Propane and Hy is Hydrogen). Then press the Enter button twice to enter the selection menu. The currently selected gas will be shown on the display. Press Next to scroll through the available gases selections. The selected gas will be flashing, press Enter to select the gas and Enter again to confirm the selection.
Selecting Buzzer Option – “bUZ” To select the Buzzer Configuration, in normal mode, press the Next button twice to get to “Con” or the Configuration menu. Then press the Enter button to enter the Con menu. The fourth selection is the “bUZ” or Buzzer setting. Press Next three times to get to “bUZ” then press Enter. If the display is “On” press Next to turn it “OFF” (flashing) then press Enter to confirm the change (solid) and press Enter again to return to “bUZ” in the Con menu.
Selecting Fan Relay Latching Option – “FrL” To select the Fan Relay Latching Option, in normal mode, push the Next button twice to get to “Con” or the Configuration menu. Then push the Enter button to enter the Con menu. The tenth selection is the “FrL” or Fan Relay Latching Option. Push Next nine times to get to “FrL” then Enter. If latching is “OFF” push Next to turn it to “ON” (flashing) then push Enter to confirm the change (solid) and push Enter again to return to “FrL” in the Con menu.
NOTE: For trouble codes over 080 the display will alternate between t_1 and t00 for t100 and between t_2 and t00 for t200. If the error mode repeats frequently, check for continuous power and proper voltage. If power is not the problem and a unit has repeating error conditions, it may need to be returned to Macurco for service, per these User Instructions. If the error mode indicates “Sensor expired” see the Sensor Life Reset section of these User Instructions.
! WARNING Do not disassemble unit or attempt to repair or modify any component of this instrument. This instrument contains no user serviceable parts, and substitution of components may impair intrinsic safety, which may adversely affect product performance and result in sickness or death. CAUTION Avoid the use of harsh cleaning materials, abrasives and other organic solvents. Such materials may permanently scratch the surfaces and damage the display window, labels, sensor or instrument housing.
a. 8. The display progresses through the BUZ (Buzzer Test) Art (alarm relay test), Frt (fan relay test) then 42t (4-20 mA output test). Make sure that the settings are “on” or not disabled “diS”. b. During the first 10 seconds of the test cycle, the display will show BUZ and set off the audible buzzer c. The alarm relay will be closed, so any devices connected to that relay will be tested. d.
General The GD-6 can be bump-tested or calibrated with the GD-6 Field Calibration Kit using Methane, Propane or Hydrogen gas, regulator and test hood, available through your local representative or from Macurco.
5. Turn on the regulator to start the gas flow and wait with the gas applied continuously. 6. With the display function turned “On”, the GD-6 will show the current concentration of gas or “0” (zero) in clean air. When the gas concentration reaches the fan relay setting (5% LEL, for example) the display will flash back and forth between “FAn” and “5”. With the display function turned ”Off”, the display does not show the gas concentration, but will show “FAn” as long as the fan relay is activated.
4. With the display function turned “On” and the gas concentration reaching the Alarm Relay setting, (20% LEL, for example) the display will flash back and forth between “ALr” and “20”. The buzzer will sound indicating “Alarm” if the buzzer is turned “On”. With the display function turned off the display does not show the gas concentration, but will show “ALr” when the Alarm relay is activated. Note: If the Alarm relay fails to operate within 2 minutes, consider these possibilities: 5. a.
4. The display option should be set to “On” and reading 0% LEL in clean air. 5. With the GD-6 cover on, aim the lighter into the sensor grate area (under “DO NOT PAINT”) on the front cover and release the gas (without igniting the flame) for 1 second or less 6. Wait for a few seconds. The digital display should climb indicating the increased gas concentration at the sensor confirming a pass of the quick test. Note: If the Display does not change within 10 seconds, consider these possibilities: 7. a.
6. 7. 8. Then press the Enter button to get to “000” Calibration Zero Mode, then press the Next button to get to “SPn” – Calibration Span Mode. Press the Enter button and the display will read 10 alternating with the gas, mE, Pro or Hy (blinking), indicating the sensor is looking for gas. Start applying gas to the gas sensor. Note: The sensor will look for the gas for 45 seconds. If no gas is applied or detected in that time, the display will return to CAL. 9. 10. 11. 12. 13. 14. 15.
MACURCO FIXED GAS DETECTION PRODUCTS LIMITED WARRANTY Macurco warrants the GD-6 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 GD-6), provided it is maintained and used in accordance with Macurco instructions and/or recommendations.
