Envent Engineering Ltd. Page 16 Revision 2.4
Carbon steel sample line and/or fittings are not acceptable.
Installation of Analyzer Components
In this section, some components of the 330S/331S H
2
S analyzer will be covered in
more details as well as the optional components added to the system at customer
request. A brief explanation of type, functionality, set up and options will be described.
Total Sulfur and Dilution system options will not be covered in this section. Please
refer to Total Sulfur and Dilution manuals.
Analog Outputs
The H
2
S controller board has two isolated loop power 4-20mA outputs which can be
set up for different variable outputs. Loop power (10-32 Volts) sourced from the end
device (PLC) is required for the analog to output. Figure 5 shows the different wiring
set ups for the analog outputs.
The third wiring option shown in Figure 5 uses Envent's powered AO board(s) to
provide self-powered analog outputs. These boards are available at Envent
Engineering Ltd.
The factory default variable for the two analog outputs is the current H
2
S reading on
sample 1, labeled in the ICE software as "Sample 1 H
2
S – Current Value", meaning
both analog outputs are based on the H
2
S readings for sample 1. For SDS models,
analog output 2 outputs the variable for sample 2.
To Next Page
Loading...