8
CONFIGURING THE REMOTE ALARM
The Protocol Station Remote Alarm can be configured to allow connection to either Normally Open (N.O.) or
Normally Closed (N.C.) pressure switches.
Setting the Alarm for Normally Open or Normally Closed Pressure Switches
The Protocol Station Alarm is factory set to operate with Normally Open (N.O.) pressure switches. By definition,
a Normally Open (N.O.) pressure switch is one whose contacts are "open" when the pressure switch gauge
needle is below the trip point. To configure the alarm to operate with Normally Closed (N.C.) pressure switches
perform the following steps:
1. Unplug the power plug from the Remote Alarm power jack.
2. It is best to set the unit on a flat surface face down. Remove the four (4) screws that hold the back
cover on and set the cover aside.
3. Locate the 4 position DIP switch array and then using a stylus or small screwdriver, open and close the
DIP switches according to Table 5A, 5B and Figure 9.
5. Place the back cover back onto the base and tighten the screws.
6. Reconnect the power plug into the power jack and plug the unit in.
DIP Switch
Factory Default
Settings
1
Open
2
Close
3
Close
4
Close
Table 5A
Settings for Normally Closed (N.C.) Operation
*OFF = Open, ON = Closed
DIP Switch
Factory Default
Settings
1
Close
2
Open
3
Open
4
Close
Table 5B
Settings for Normally Open (N.O.) Operation
(default)
*OFF = Open, ON = Closed
Figure 9
Содержание 529 Series
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