Teledyne Trace Oxygen Analyzer, 3000TA-XL-EU operating instructions Range ID Relay Connections

3 Installation Model 3000TA-XL-EU

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 3000T automatically regulates the zero, span and sample gas flow.

Range ID Relays: Four dedicated Range ID relay contacts. The first three ranges are assigned to relays in ascending order—Low range is as- signed to Range 1 ID, Medium range is assigned to Range 2 ID, and High range is assigned to Range 3 ID. The fourth range is reserved for the Air Cal Range (25%). 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

34Range 4 ID Contact (Air Cal)

35Range 4 ID Contact (Air Cal)

Network I/O: A serial digital input/output for local network protocol. At this printing, this port is not yet functional. It is to be used for future options to the instrument. Pins 13 (+) and 29 (–).

Remote Valve Connections: The 3000TA-XL is a single-chassis instrument, which has no Remote Valve Unit. Instead, the Remote Valve connections are used as a method for directly controlling external sample/ zero/span gas valves. See Figure 3-5.

Figure 3-5: Remote Probe Connections

3-8 Teledyne Analytical Instruments