Chapter 7: Configuring a 4 - 20mA Zone Type
In edit mode, under the
Action
tab of the zone you are configuring, click on the edit field next to siren
icon
.
A check mark indicates the siren is enabled.
Enabling the Internal Speaker
The internal speaker allows you to hear the alert messages from the system when you are near the main
system.
In edit mode, under the
Action
tab of the zone you are configuring, click on the edit field next to the
speaker icon
.
A check mark indicates the internal speaker is enabled.
Recording the Zone Audio Label
The audio label is the name the system repeats to identify the zone when calling because an alert is set off
in the zone.
1. In edit mode, under the
Mess.
tab of the zone you are configuring, click on the record icon
.
NOTE:
The time remaining to record the audio label starts counting down once you press the record
button.
Tip
For consistency, use the same words as you used when giving the
Name
in the zone’s
General
tab.
2. State the zone audio label clearly.
NOTE:
The recording stops when it has reached the allowed time of 8 seconds.
3. Click on the play icon
to listen to the recording.
4. If the recording is not satisfactory, press the garbage icon
to delete the recording and start over.
5. Repeat steps 2 through 5 to record the zone audio label in another language.
Calibrating the Sensor Outputs
To correct a possible zero or span error, it is important to calibrate the sensor outputs.
1. Using a 0 to 300 PSI pressure sensor, measure the sensor’s output. The output should read 0 volts.
2. If the reading isn’t 0, enter the the value with an inverted sign in the appropriate field. This becomes
the
b
value in our equation.
3. Measure the output once more while at its maximum stimulation. The output should read 5 volts. If it
doesn’t, perform the following equation:
Maximum value of the input / (value generated by the sensor - the offset)
For example, 5 volts / (6 volts - 0,4 volts) = 0.89 span.
44
895–00677
Agri-Alert 128 Touch
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