Teledyne 3000PA-EU Operating Instructions Manual page 31

Percent oxygen analyzer

Table of Contents

Percent Oxygen Analyzer

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.

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 3000PA is a single-chassis instru-

ment, which has no Remote Valve Unit. Instead, the Remote Valve connec-

tions are used as a method for directly controlling external sample/zero/span

gas valves. See Figure 3-5.

The voltage from these outputs is nominally 0 V for the OFF and

15 V dc for the ON conditions. The maximum combined current that can be

pulled from these output lines is 100 mA. (If two lines are ON at the same

time, each must be limited to 50 mA, etc.) If more current and/or a different

voltage is required, use a relay, power amplifier, or other matching circuitry

to provide the actual driving current.

Table 3-4: Range ID Relay Connections

Function

Range 1 ID Contact

Range 2 ID Contact

Range 3 ID Contact

Range 4 ID Contact (Air Cal)

Figure 3-5: Remote Valve Connections

Teledyne Analytical Instruments

Installation 3

3-9

Table of Contents