Table 3-4: Range Id Relay Connections - Teledyne 3000ZA-3X Operating Instructions Manual

Trace oxygen analyzer

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Installation

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

Teledyne Analytical Instruments

Function

Range 1 ID Contact

Range 2 ID Contact

Range 3 ID Contact

Spare Contact

3000ZA-3X

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