Range Id Relays; Network I/O; Rs-232 Port - Teledyne 3020T Operating Instructions Manual

Trace oxygen analyzer

Hide thumbs Also See for 3020T:

Table of Contents

Trace Oxygen Analyzer

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 probe connections (paragraph 3.3.9) 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 3020T automatically regulates the zero, span

and sample gas flow.

3.3.6 Range ID Relays

There are four dedicated RANGE ID CONTACT relays. 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. RANGE 4 ID is reserved

for the Air Cal Range (25%).

A serial digital input/output for local network protocol. At this

printing, this port is not yet functional. It is to be used in future versions

of the instrument.

The digital signal output is a standard RS-232 serial

communications port used to connect the analyzer to a computer,

terminal, or other digital device. The pinouts are listed in Table 3-3.

Teledyne Analytical Instruments

Installation

Table of Contents