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Operation
4.2.4 Analog output
The analog unit sends a 4–20 mA signal that is proportional to the number of particles
that are counted in a given sampling time. A data acquisition system installed by the user
and connected to an output channel of the analog unit receives the signal. The 4–20 mA
output current is scaled for a range between zero and a maximum count set by the user.
Analog units cannot be networked. Refer to section 3.6.9 on page 25 and section 3.6.10
on page 26 for setting the Analog output scaling and testing the Analog output.
4.3 Wireless
4.3.1 Wireless with Modbus TCP protocol
Important note: A good working knowledge of Wireless Network installation, security, and
operation is required. The network should be set up by a network professional. After the
network is set up, the counter can be configured through the network (operational)
settings.
Note: Hach Company and its vendors disclaim any responsibility of providing network and access
point security with the purchase, installation and operation of its wireless air particle counters.
Network and access point security is the sole responsibility of the customer using the wireless
particle counters. Hach Company and its vendors will not be liable for any indirect, special, incidental
or consequential damages caused by the breach in network security even if Hach Company or its
vendors has been given advanced notice of the possibility of such damages.
4.3.1.1 Wireless configuration
Configuration of the instrument for use with a Wireless LAN is accomplished by setting
the parameters in the Ethernet and Wireless sections of the utility program.
4.3.1.2 Ethernet setup
Refer to Figure 26 and Table 11 for a description of the Ethernet fields.
Figure 26 Ethernet section of utility program
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