Teledyne 3000ZA-3X operating instructions Range ID Relay Connections

Installation 3000ZA-3X

Once a zero or span command is sent, and acknowledged (contact closes), release it. If the command is continued until after the zero or span is complete, the calibration will repeat and the Cal Relay Contact (CRC) will close again.

For example:

1.Test the CRC. When the CRC is open, send a zero command until the CRC closes (The CRC will quickly close.)

2.When the CRC closes, remove the zero command.

3.When CRC opens again, send a span command until the CRC closes. (The CRC will quickly close.)

4.When the CRC closes, remove the span command.

When CRC opens again, zero and span are done, and the sample is being analyzed.

Note: The Remote Valve connections (described below) provides signals to ensure that the zero and span gas valves will be controlled synchronously. If you have the –C Internal valve option—which includes additional zero and span gas inputs—the 3000ZA automatically regulates the zero, span and sample gas flow.

Range ID Relays: There are four dedicated Range ID relay contacts. The first three ranges are assigned to relays in ascending order—Low range is assigned to Range 1 ID, Medium range is assigned to Range 2 ID, and High range is assigned to Range 3 ID. Table 3-4 lists the pin connections.

Table 3-4: Range ID Relay Connections

Pin Function

21Range 1 ID Contact

38Range 1 ID Contact

22Range 2 ID Contact

39Range 2 ID Contact

19Range 3 ID Contact

18Range 3 ID Contact

34Spare Contact

35Spare Contact

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