Testing; Operation Test - Macurco GD-6 Operation Manual

Macurco GD Operation Manual

7 Testing

Using a certified gas with a concentration other than the one listed for this detector
when conducting a calibration verification test (bump test) will produce inaccurate
readings. This means that higher levels of the gas being monitored may be present and
could result in overexposure. For proper use, see supervisor or User manual, or
contact Technical Support at 1-844-325-3050.
All GD-6 units are factory calibrated and 100% tested for proper operation. During normal operation the green
status indicator LED light will be on steady, the fan & alarm relay will be in standby mode and the 4-20 mA output
will be at 4mA (in clean air). The unit also performs a regular automatic self-test during normal operation. If the unit
detects an improper voltage or inoperable component, it will default into Error mode. 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. The Fan relay will also engage if the
Trouble Fan Setting Option is set to "ON".
7.1 Testing

7.1.1 Operation Test

Check that the green GD-6 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 Macurco technical service representative for
information on resolving the problem.
1. Remove the single screw in the middle of the front cover of the GD-6.
2. Remove the front cover.
3. Observe the LED light on the front of the GD-6.
4. If the light is solid green proceed to step 6.
5. If the green status indicator LED light is off or flashing, refer to the General section above.
6. Locate the switch labeled ENTER/TEST on the left side of the printed circuit board. Press the Test switch
once.
7. The GD-6 will step through a cycle test:
a. 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. The Fan relay will be activated for the next 1 minute of the test, so if the fan circuits are wired in the
normal manner, the fan should run.
e. The 4-20mA output will then ramp up from 4 to 16 mA over the next 130 seconds of the test, so if
the circuit is wired in the normal manner, the control panel or building automation system should
respond.
f. At the end of the test cycle, the light will turn green and be on steady (Normal Operation), the fan &
alarm relay will be in standby mode and the 4-20 mA output will return to 4 mA (in clean air).
8. When testing is completed reassemble the unit or units.
REV – 1.0.0
WARNING
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