Ametek Dycor CG1000-RTP, User Manual

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Controller / User Interface
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4-9
Analog Output Port
Before you can define any Analog Range Key functions, you must
choose whether it will apply to Analog Output Port 1 or 2 on the back
of the analyzer. Analog Output Port 1 is labeled I OUT 1; Analog
Output Port 2 is labeled I OUT 2.
Selecting an analog output port
1. Select the Analog Range Key .
2. Select either Current Output #1 or Current Output # 2 .
You can then select any of the menu options described in the remainder of this
chapter, and it will be applied to your selected analog output port.
Set Current Range Option
Define the range of readings that the 0-to-20 or 4-to-20 mA (milliamp) output
will represent.
You can also choose to set a reverse analog output range, so for example,
0 mA can correspond to the high end of the oxygen range, and 20 mA can
correspond to the low end of the oxygen range.
The range of readings the current output represents is also a function of
the type of process readings the analog output port tracks.
Setting the current range
After selecting an analog output port, set the range of readings that the
selected current output represents as follows:
1. From the Analog Range Key menu, select Set Current Range .
2. If tracking oxygen, select whether you want to enter the 20 mA value
using a percent or PPM range.
3. Define the new value to correspond to the 20 mA analog output:
Out # y 20 ma = xx
New Value?
NOTE

See the Current Mode sec-
tion later in this chapter for
help choosing either a 0-to-20
mA or 4-to-20 mA sacle.