Installation Manual
22
This display example shows that the sensor on channel 01 has been configured as a Carbon Monoxide sensor with an Alarm level of
200 ppm and a Warning level of 50 ppm.
Notice that the sensor number, 01 in this example, is underlined. This indicates that the digit keys can be used to jump to a particular
channel, even if there is no sensor connected to the channel.
3.3.2.2 Sensor Type
S e n s o
r
0
1
C
O
T y p e :
1
Figure 3-26 Sensor Type
This display example shows that the sensor on channel 01 has been configured as a Carbon Monoxide sensor. The valid entries for
Macurco type sensors are Carbon Monoxide (CO), Nitrogen Dioxide (NO2), Combustible Gas (EX), Ammonia (NH3), Hydrogen Sulfide
(H2S), Refrigerants (REF), Carbon Dioxide (CO2) and Oxygen (O2).
Setting the sensor type to 0 (zero) will cause the display to ask if the user wants to DELETE the sensor. If the answer is yes, the
configuration record for this sensor channel will be deleted and the channel will no longer be used to control the ventilation system.
When a sensor’s type is changed, the alarm level, warning level and range will be set to the default for the sensor type.
The following three parameters are not accessible until a sensor type of 1, 2 or 3 is selected.
3.3.2.3 Alarm Set Point
S e n s o
r
0
1
C
O
A l a r m
:
2
0
0
p
p
m
Figure 3-27 Sensor Alarm Level
The default alarm levels for the sensors are:
Description
Carbon
Monoxide
Nitrogen
Dioxide
Combustible
Gas
Ammonia
Hydrogen
Sulfide
Refrigerants
Carbon
Dioxide
Oxygen
Alarm Level 200ppm 5ppm 20% 75ppm 20ppm 300ppm 3,000ppm 19.5%
Setting an alarm level of 0 (zero) will disable alarm detection for this particular sensor.
3.3.2.4 Warning Set Point
S e n s o
r
0
1
C
O
W
a r n i
n
g
:
_
5
0
p
p
m
Figure 3-28 Sensor Warning Level
The default warning levels for the sensors are:
Description
Carbon
Monoxide
Nitrogen
Dioxide
Combustible
Gas
Ammonia
Hydrogen
Sulfide
Refrigerants
Carbon
Dioxide
Oxygen
Warning Level 100ppm 3ppm 15% 50ppm 14ppm 200ppm 2,000ppm 20.0%
Setting a warning level of 0 (zero) will disable warning detection for this particular sensor.