10
6.
Communication Status:
Whenever a channel is activated, or a different circuit board is enabled
(relays, thermocouples, battery backups) the main display CPU will request information from
the relevant circuit boards to display and operate properly. The GA-180 is able to detect if
any boards on this system are not communicating properly and address the user for immediate
correction. Communication statuses will be “Normal” or “Error”. Refer to Sections II.F for
more details.
7.
Temperature Alarm:
This screen will indicate if the air temperature in the room has exceeded
the high temperature alarm setting or fallen below the low temperature alarm setting. Status will
indicate one of the following: Normal, Alarm High, Alarm Low or Fail. Refer to Section II.D for
more details.
8.
Password:
This screen allows access to the adjustable/confi guration settings of the GA-180.
Using the
and
keys, the password may be entered. The password for this unit is “180”.
C.
Confi guring a Sensor Channel
After the correct password has been entered, press
to proceed to the confi guration mode. Using
the
and
keys, select the “sensor” option so that it is blinking and press the
key to proceed to
the channel confi guration settings.
This section gives a description of the confi guration screens and settings for each channel. To
determine how to access each of these settings, use Figure 10.
1.
Confi gure Channel:
This screen will allow the user to enable/adjust settings to the relevant
channel. The GA-180 can accept up to 16 separate channel inputs. Use the
and
keys to
select the relevant channel. Once the relevant channel is blinking, press
to enter the sensor
channel settings. All screens will be identical regardless of the channel selected. Settings will be
adjusted and saved to each independent channel.
2.
Channel Low and High Set:
In the rising alarm confi guration; in which the low set is less than
the high set, the channel low set is the point
above which
the “Danger” alarm will activate. The
high set is the point
above which
the “Alarm” alarm will activate.
In the falling alarm confi guration; in which the low set is greater than the high set, the channel
low set is the point
below which
the “Danger” alarm will activate. The high set is the point
below which
the “Alarm” alarm will activate.
Settings are adjusted using the
and
keys. Once the alarm levels are set press
to proceed
to the next screen.
3.
Channel Alarm Type:
The high alarm for each channel can be set to latching or non-latching.
0 represents non-latching and 1 represents latching. These values can be adjusted using the
and
keys. When latching is selected and a high alarm occurs, the alarm will stay in an alarm
state until the user has acknowledged it, even if the condition has since been alleviated.
The high alarm for each channel can also be set to failsafe or non-failsafe. 0 represents non-
failsafe and 1 represents failsafe. When failsafe is selected, the high alarm relay becomes
energized, in effect making the N.O. contact closed. Therefore should power be lost the relay
will trip/activate.
4.
Channel Alarm Delay:
This screen allows the user to adjust the amount of time the sensor is
in alarm state before the relays and other alarm features activate. This setting is adjustable from
0-60 seconds, with 5 seconds as the recommended default.
