Emerson Autochangeover Controllers AC8 - Manual (Page 49)

System and Control Options
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7.5.1 Identify the Sensor as Connected
To make use of an analog sensor, you must specify it as Connected (Y).
By default, analog sensors are Not connected (N).
Disconnecting a sensor will turn off staging for that sensor’s zone if
staging has been turned on for the zone (see 7.10.6 - Specify Staging
for details on staging).
• From the Setup Sensor Menu, choose Connected, as shown at
right, and press Enter ↵ .
• To change this feature, use the arrows ↑↓ to choose Y (Yes - Con-
nected) or N (No - Not connected), then press Enter ↵ .
7.5.2 Change Sensor Label (Name)
Each sensor has a default label (Sensor_1, Sensor_2, etc.) that you may
change to a more descriptive name. The label may consist of up to eight
characters (see Table 14 for valid characters).
• From the Setup Sensor Menu, choose Label for the selected sen-
sor—Label: Sensor_1 in the example—and press Enter ↵ .
• To change the sensor’s label, which may consist of up to eight char-
acters:
• Use the arrows ↑↓ to choose a character.
• Press Enter ↵ to advance to the next character position.
• When finished, press Enter ↵ again.
7.5.3 Change Units Label
For each sensor, you may use a three-character label to specify mea-
surement units, such as DEG (see Table 14 for valid characters).
• From the Setup Sensor Menu, choose Units for the selected sensor
and press Enter ↵ .
• To enter the units label, which may consist of up to three charac-
ters:
• Use the arrows ↑↓ to choose a character.
• Press Enter ↵ to advance to the next character position.
• When finished, press Enter ↵ again.
Setup Sensor Menu
SETUP SENSOR_1
> CONNECTED: N
LABEL: SENSOR_1
↑↓
=NEXT
↵
=SELECT
UNITS: DEG
4 mA: +045.0
20 mA: +096.0
OFFSET: +000.0
ALARM/EVENT: AL
LATCHED: N
LOW SETPT: +0050.0
HIGH SETPT: +0090.0
SENSOR DELAY: 00:01
Sensor Connected
IS THE SENSOR
CONNECTED? N
↑↓
=Y/N
↵
=END
Setup Sensor Menu
SETUP SENSOR_1
CONNECTED: Y
> LABEL: SENSOR_1
↑↓
=NEXT
↵
=SELECT
UNITS: DEG
4 mA: +045.0
20 mA: +096.0
OFFSET: +000.0
ALARM/EVENT: AL
LATCHED: N
LOW SETPT: +0050.0
HIGH SETPT: +0090.0
SENSOR DELAY: 00:01
Change Sensor Label
CHANGE SENSOR LABEL
LABEL: ROOM TMP
↑↓
=SELECT
↵
=END
Setup Sensor Menu
SETUP SENSOR_1
CONNECTED: Y
LABEL: ROOM_TMP
↑↓
=NEXT
↵
=SELECT
> UNITS: DEG
4 mA: +045.0
20 mA: +096.0
OFFSET: +000.0
ALARM/EVENT: AL
LATCHED: N
LOW SETPT: +0050.0
HIGH SETPT: +0090.0
SENSOR DELAY: 00:01
Change Units Label
CHANGE UNITS LABEL
UNITS: DEG
↑↓
=SELECT
↵
=NEXT/END