Net Safety MAN-0069, User Manual

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Net Safety Monitoring Inc
Modbus Controller & 4-20 Fire Head 8
T
HE
M
AIN
M
ENU
The Main Menu allows for:
• Modbus Setup - Select Node Address and Baud Rate
• Select a display language - English, Spanish or French
Note: The current output will drop to 3.0 mA while in the Main Menu.
Accessing the Main Menu
There are two ways to activate the Main Menu:
• Calibration Button found on the faceplate (the Housing cover must be
removed to access)
• Magnetic Reed Switch (a magnet must be used to activate)
Calibration Button
The Calibration Button provides access to the Main Menu, which allows options
to be reviewed and set. Refer to Figure 9 for more information.
•
Press and hold the Calibration Button to access Main Menu.
• Briefly press to make a selection (select
YES?
).
WARNING:
Opening the Controller’s Housing should be avoided when the presence of gas
is possible (when in a hazardous environment). Do not power up the system,
with the Housing removed, unless the area has been de-classified.
Magnetic Reed Switch
The Magnetic Reed Switch is provided to avoid opening the Housing in an
environment where gas may be present. The Magnetic Reed Switch functions in
the same manner as the Calibration Button but in a non-intrusive manner. Refer
to Figure 9 for more information.
Attached to the side of the Controller is a magnet:
•
Place and hold the magnet to the Controller’s Housing (10 o’clock position)
to access Main Menu.
• Briefly place the magnet to the Controller’s Housing (10 o’clock position) to
make a selection (select
YES?
).
Main Menu Functionality
1. Ensure that the Controller has been turned on and no fault is present.
2. Hold the magnet against the Reed Switch or press and hold the Calibration
Button until the message
Switch On
displays and the countdown (10 to
0) finishes.
3. An option will scroll across the display followed by the prompt
YES?
.
4. To select an option, momentarily place the magnet to the Reed Switch or
press the Calibration Button at the
YES?
prompt.
5. If you do not wish to select that option wait until the next option appears
and then select
YES?
.
6. A selection is acknowledged with a flashing
YES
.
7. If no option is selected, the Controller returns to normal operation.
Power Up
Turn power switch On. A 90 second warm-up routine will begin. The display
shows
Start Delay Millennium Net Safety
, the Status LED is Red
Slow Flash and current output displays 3.0 mA.
When power is applied, the system is automatically tested to ensure proper
functionality.
After warm-up, the Controller will enter normal operation, the display reads
NORM
, Status LED will Green Blip/blink and analog output will change to
4.0 mA.
Current Loop Measurement (Test Jacks)
Use a standard meter to measure current loop during various states. The
Controller’s Housing cover must be removed to access the Test Jacks.
Refer to Table 4, “Current Output, LEDs and Display Messages,” on page 10
for a detailed list and Figure 9 for more information.
Status LED
The Status LED will remain solid, flash, blip and/or blink, in either Red or
Green, to indicate various states. Refer to Table 4, “Current Output, LEDs and
Display Messages,” on page 10 for a detailed list.