Operating the SS2000 System
3–10 H
2
S in Natural Gas
• DryPressure: Shows the pressure in the measurement cell when
scrubbed sample gas is flowing through it.
• WetTemp: Shows the temperature in the measurement cell when
normal sample gas is flowing through it.
• WetPressure: Shows the pressure in the measurement cell when
normal sample gas is flowing through it.
Mode 5: (System Diagnostic Parameters - Channel B)
Not Used
Mode 6: (Diagnostic Data Download)
Used to transfer diagnostic data to the serial port(s) and read the individual
data points of both the DC and 2f spectra that the instrument analyzes to
calculate the gas concentration. Viewing these data can be helpful in
diagnosing problems with the analyzer. Press # key followed by the 6 key.
The data points, along with intermediate calculation results, are output to the
serial port(s) whenever Mode 6 is selected. The data for Channel A is output
on the Channel A serial port and the data for Channel B is output on the
Channel B serial port.
Scaling and Calibrating the Current Loop Signal
The 4-20 mA current loop signals are most conveniently scaled and calibrated
at the receiving end (RTU, flow computer, etc.). To scale the receiver’s output,
the analyzer’s current loop output is forced to 4 mA and 20 mA and the receiver
is adjusted to read “0” and “Full Scale,” respectively.
To scale the current loop signal:
1. Make sure the current loop is connected and the receiver is set for
the analyzer to source the current.
The 4-20 mA current loop is factory set as the source unless
otherwise specified. Contact your sales representative if a change
is required.
Be sure to work in a non-hazardous area while handling any
electrical connector.
+
#
6
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