- 4 -
TESTING
(Continued)
Figure 10
Red Start
Button
Glass-Break
Detector
IMPORTANT: Some environmental factors may reduce the sensor
activation range. If you do not see the green LED flashing after pressing
the red start button, move closer to the unit and try again.
If an FG-701 is not available, or if for any reason remote activa-
tion cannot be used, use a screwdriver to short the test pads at
location S3 on the PCB (see Figure 1). This will activate Test
Mode. Make sure to replace the front cover of the FG-1025Z
before beginning test.
To test the FG-1025Z:
1. Place the unit in Test Mode as described above.
2. Set the FG-701 switches to the TEST and FLEX positions.
3. Press the red start button. The simulator will "click" on and
start an eight second armed period.
4. Position the FG-701 near the farthest point of the protected
glass and point it directly at the FG-1025Z.
5. Generate a flex signal by carefully striking the glass with a
cushioned tool. The FG-701 will respond by producing a
burst of glass-break audio. (Refer to Figure 10.)
If both the flex and audio are received properly, the red alarm
LED on the FG-1025Z will light.
IMPORTANT: If window coverings are present, close them fully and hold
the FG-701 behind the window coverings for testing.
NOTE: You can also use the simulator in the MANual mode to test
audio alone. The blinking green LED on the unit will flicker when
the simulator audio is received correctly. (See the FG-701
Operating Instructions for additional information.)
After testing, exit the Test Mode using the same procedure for
activating the Test Mode. The FG-1025Z also will automatically
exit Test Mode after ten minutes. If the red alarm LED is lit, it will
automatically extinguish upon exiting Test Mode.
LED Indicators (Continued):
Condition
Green LED
Red LED
Normal, no event
OFF
OFF
Normal, event detected
Flicker
OFF
Normal, break detected
OFF
ON
Power-up self-test
ON, one second
ON, one second
Trouble detected
Flash ON/OFF
Flash OFF/ON
Test mode, no alarm
Flash once per second OFF
Test mode, event detected
Flicker
OFF
Test mode, alarm
Flash once per second ON
LED Indicators:
The two LED's on the front cover are used to indicate the
sensor's operational status. The following table summarizes the
LED operation when the LED's are enabled.
APPLICATIONS INFORMATION
The FG-1025Z is designed to detect framed glass broken by an
impact sufficient to make a hole.
To minimize the chance of false alarms:
•
Do not use outside.
•
Avoid installing in rooms with high-level noise sources, such
as air compressors, bells, power tools, etc., if those sources
can be active when the detector can signal an alarm.
•
Test false alarm immunity by activating any known noise
sources in the room.
To maximize detection:
•
Mount the unit on a wall or ceiling directly opposite the glass
if possible. The least desirable mounting location is on the
same wall as the glass.
•
Minimize range to the glass. Do not install beyond the
maximum specified range even if testing indicates greater
range.
•
Verify all installations back to the panel to be sure that the
protection loop is intact.
Self-Test Chart
Power-Up Self-Tests
• RAM Test
Write & read all RAM locations
with one's & zero's
• Arithmetic Test
Verify correct results for CPU
arithmetic
• Logic Test
Verify correct results for data
comparisons
• Clock Rate Test
Check clock frequency by
measuring external time
constants
• Active Analog Circuit Test
Inject signals into analog
channels to check gains,
filters, A/D, and interrupts
Continuous Self-Tests
• Watchdog
Supervises microcontroller
• ROM Checksum
Firmware ROM checksum
verified
• RAM Test
Write & read RAM locations
with one's & zero's
• Logic Test
Verify correct results for data
comparisons
• Passive Analog Circuit Test
Verify analog inputs are within
normal bounds
SELF-TESTS
The FG-1025Z automatically performs a series of self-tests
during power-up, and continuously (when the sensor is not
detecting a trouble or alarm condition.) Refer to the chart below
for descriptions of the self-tests performed:
