36
Operation
4.2.2.2 Ethernet LED indicators
for a description of the Ethernet connection LED indicators.
4.2.3 Pulse output modes
The pulse unit sends an 8-µs signal each time a particle is detected. A data acquisition
system installed by the user and connected to an output channel counts the pulses. The
data can be sent in one of 2 count modes—differential or cumulative (
).
•
Differential mode
—a signal is sent on the first channel when a particle is between
the first and the second size thresholds. A signal is sent on the second channel when
a particle is larger than the second size threshold.
•
Cumulative mode
—a signal is sent on the first channel when a particle is larger than
the first or the second size threshold. A signal is sent on the second channel when a
particle is larger than the second size threshold.
Note: The count mode can be configured by the factory. The default setting is differential. Pulse
units cannot be networked.
Table 10 LED indicators for Ethernet
LED color
On/Off
Indicator
Yellow
On
Connected
Green
Off
10Base-T
Green
On
100Base-T
Figure 25 Differential vs. cumulative count mode example
1
Pulse signal sent from counter
4
Channel 1
2
Data transfer in differential vs. cumulative mode
5
Differential count—one 0.2 µm and two 5.0 µm particles
3
Channel 2
6
Cumulative count—three 0.2 µm and two 5.0 µm particles
Summary of Contents for Met One 6000 Series
Page 2: ......
Page 33: ...31 Operation Figure 21 Setup utility program non wireless units...
Page 48: ...46 Troubleshooting...
Page 50: ...48 Replacement parts and accessories...
Page 52: ...50 Contact information...
Page 54: ...52 Limited warranty...
Page 64: ...62 Modbus register maps...
