Teledyne 3000TA Manuale utente

Teledyne Analytical Instruments

QUICKSTART GUIDE

MODEL 3000 TA

Trace Oxygen Analyzer

Quickstart Guide Trace Oxygen Analyzer

Teledyne Analytical Instruments

Model 3000TA Quickstart Guide

Teledyne Analytical Instruments 3

GETTING STARTED

This Quickstart Guide is designed to get you set up and operating your Teledyne Analytical

Instruments Analyzer quickly. It shortcuts the details so you can install and use your new

analyzer with a minimum of fuss. This Quickstart Guide should be used in conjunction with the

Instruction Manual that shipped with your instrument. Only necessary features to get you

operational are discussed in this guide. Many of the advanced features of this analyzer are not

described here so you should refer to the Instruction Manual to get the most from your analyzer

Front Panel (Operator Interface)

Take a minute to familiarize yourself with the analyzer’s interface. The standard 3000TA is

housed in a rugged metal case with all controls and displays accessible from the front panel. The

operator interface consists of thirteen buttons for operating the analyzer, a digital meter, an

alphanumeric display, and a window for viewing the sample flowmeter.

Function Keys:

Six touch-sensitive membrane switches

are used to change the specific function

performed by the analyzer:

•Analyze Perform analysis for

oxygen content of a

sample gas.

•System Perform system-

related tasks

(described in detail

in chapter 4,

Operation.).

•Span Span calibrate the analyzer.

•Zero Zero calibrate the analyzer.

•Alarms Set the alarm setpoints and attributes.

•Range Set up the 3 user definable ranges for the instrument.

Data Entry Keys:

Six touch-sensitive membrane switches are used to input data to the instrument via the

alphanumeric VFD display:

Quickstart Guide Trace Oxygen Analyzer

Teledyne Analytical Instruments 4

•Left & Right Arrows Select between functions currently displayed on the VFD

screen.

•Up & Down Arrows Increment or decrement values of functions currently displayed.

•Enter Advances VFD display to the next screen in a series or returns to the Analyze

screen if none remain.

•Escape Backs VFD display to the previous screen in a series or returns to the Analyze

screen if none remain.

Digital Meter Display:

The meter display is a Light Emitting Diode (LED) device that produces large, bright, 7-segment

numbers that are legible in any lighting. It produces a continuous readout from 0-10,000 ppm and

then switches to a continuous percent readout from 1-25%.

Alphanumeric Interface Screen

The VFD screen displays values, options, and messages for immediate feedback.

Set Flow:

Needle valve used to adjust flow of gas sample

Flowmeter:

Monitors the flow of gas past the sensor. Readout is 0.2 to 2.4 SLPM of nitrogen.

Standby Button:

The Standby turns off the display and outputs, but circuitry is still operating.

Access Door:

For access to the Micro-fuel Cell,the front panel swings open when the latch in the upper right

corner of the panel is pressed all the way in.

Rear Panel (Equipment Interface)

At the rear panel you make the gas and electrical connections to the instrument.

•Power Connection:

Universal AC power

source.

•Gas Inlet and Outlet:

Inlet, exhaust, zero and

span.

•Remote Probe

Connection: Used for

controlling external solenoid valves only.

•RS-232 Port: Serial digital concentration signal output and control input.

Model 3000TA Quickstart Guide

Teledyne Analytical Instruments 5

•Analog Output Connection: Terminals for current and voltage analog output

signals.

•Digital Input Terminals: Terminals for connecting digital input signals.

•Alarm Connections: 2 concentration alarms and 1 system alarm.

•Calibration Contact : To notify external equipment that instrument is being

calibrated and readings are not monitoring sample.

•Range ID Contacts: Four separate, dedicated, range relay contacts. Low, Medium,

High, Cal.

•Remote Span/Zero: Digital inputs for externally controlling calibration.

•Network I/O: Serial digital communications for local network access.

Quickstart Guide Trace Oxygen Analyzer

Teledyne Analytical Instruments 6

SETUP AND INSTALL

Mount the Analyzer

The Model 3000TA is for indoor use in a general purpose area. It is NOT for hazardous

environments of any type. It is designed for flush panel mounting. Use the four mounting holes—

one in each corner of the rigid frame to panel mount the instrument.

Gas Connections

Note: Do not remove plastic caps on VCR fittings, unless you are ready to make

connections.

The analyzer is equipped with 1/4 inch tube fittings, and 6 mm adapters are supplied for

metric system installations.

You will need:

•Zero gas — regulated supply of oxygen free gas.

•Span gas — regulated supply of a standard gas typically containing oxygen at 70-

90% of the full scale value on the range of interest.

•Purge gas — oxygen free inert gas for purging if applicable.

•Sample gas — regulated supply of sample gas available to the analyzer.

Make your gas connections to the analyzer as follows:

1. Install the flow restrictor that shipped with your instrument:

•For positive pressure applications, install the restrictor with the blue dot to the

SAMPLE IN port. The small circular orifice should face away from the back of

the unit. Remove the sticker after installing.

•For low pressure applications (less than 5 psig), connect the restrictor without the

blue dot to the SAMPLE IN port.

•For vacuum service (5-10 in Hg), install the restrictor without the blue dot to the

EXHAUST port.

2. Connect your sample gas to the SAMPLE IN port.

3. Connect a vent line to EXHAUST OUT port.

Model 3000TA Quickstart Guide

Teledyne Analytical Instruments 7

4. If using remote calibration feature:

•Connect zero gas to the ZERO IN port.

•Connect span gas to the SPAN IN port.

5. Otherwise, calibration gases must be Tee'd into the sample inlet with appropriate

valves.

6. Regulate the sample gas pressure between 2 and 50 psig sufficient to keep the front

panel flowmeter reading in an acceptable range (0.1 to 2.4 SLPM). For non-

pressurized sample or very low pressure, (less than 2 psig) vacuum service plumbing

is recommended.

7. If greater sample flow is required for improved response time, install a bypass in the

sampling system upstream of the analyzer input.

8. For optional vacuum application where the sample pressure is at atmospheric or very

low pressure, the instrument should be fitted with the vacuum service option. This

option locates the flow control valve on the exhaust side of the Micro-fuel Cell.

Note: Exhaust connections must be consistent with the hazard level of the constituent

gases. Check Local, State, and Federal laws, and ensure that the exhaust

stream vents to an appropriately controlled area, if required.

Electrical Connections

CAUTION: READ ALL SAFETY INFORMATION REGARDING ELECTRICAL HAZARDS

ASSOCIATIED WITH THIS INSTRUMENT BEFORE MAKING ELECTRICAL

CONNECTIONS.

CAUTION: POWER IS APPLIED TO THE INSTRUMENT'S CIRCUITRY AS LONG AS THE

INSTRUMENT IS CONNECTED TO THE POWER SOURCE. THE RED

SWITCH ON THE FRONT PANEL IS FOR SWITCHING POWER ON OR OFF

TO THE DISPLAYS AND OUTPUTS ONLY.

Quickstart Guide Trace Oxygen Analyzer

Teledyne Analytical Instruments 8

•Connect primary input power:

Insert the power cord into the power cord receptacle.

•Install the fuse:

Fuses are not installed at the factory. Be

sure to install the proper fuse as part of

installation.

Place small screwdriver in notch, and pry

cover off, as shown.

To change between American and

European fuses, remove the single retaining

screw, flip fuse block over 180 degrees,

and replace screw.

Replace fuse as shown below and reassemble housing.

•Connect Analog Outputs

There are four DC output signal connectors with spring terminals on the rear panel

where the analog output signals are available. There are two wires per output with the

polarity noted. See Section 3.3.2 in the Instruction Manual for detailed descriptions of

the analog outputs.

•Connect Alarm Relays:

Use the three alarm-circuit connector spring terminals on the rear panel for making

connections to internal alarm relay contacts.

•Connect Digital Remote Cal Inputs:

These input terminals accept 0 V (off) or 24 V dc (on) inputs for remote calibration

control.

•Connect Cal Contact:

This relay contact is closed while analyzer is spanning and/or zeroing.

Model 3000TA Quickstart Guide

Teledyne Analytical Instruments 9

•Connect Range ID Contacts:

There are four dedicated Range ID relay contacts on the rear panel. The first three

ranges are assigned to relays in ascending order.

Range 1 ID— Low range

Range 2 ID— Medium range

Range 3 ID— High range

Range 4 ID—Air Cal Range (25%).

•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 in future options to the instrument.

•Connect the 9-pin D connector to the RS-232 serial port.

See Section 3.3.2 in the Instruction Manual for information on setting up serial

communication for this instrument.

Install the Micro-fuel Cell

The Model 3000TA is designed to accept the L2C Micro-fuel Cell or as an option, it can use

the B2 series of Micro-fuel Cells by incorporating a spacer adaptor (Teledyne P/N B66378).

L2C Micro-fuel Cell

1. Remove power from the instrument.

2. Remove the old sensor (if installed).

Discard in accordance with all

Federal, State, Local or other

regulations which may apply.

3. Purge the analyzer at approximately 1

SCFH flow rate with nitrogen (or

applicable sample gas with the sensor

holder removed).

4. Remove the new sensor from its

double bag storage.

5. Remove the sensor shorting button.

6. Place the sensor inside the cell block.

7. Place the sensor on the sensor holder

so that the gold contact plate of the

sensor is facing upwards.

8. Install the sensor and sensor holder into the cell block.

Quickstart Guide Trace Oxygen Analyzer

Teledyne Analytical Instruments 10

9. With the O-ring in place, align the guide pin with the hole on the cell holder. Then,

with the holder, lift cell into the cell block.

10. Push the gate on the cell block down so that the slots on the side of the gate engage

the locating screws on the side of the block. This forces the holder into position and

forms a gas-tight seal.

11. Purge the system using sample or zero gas.

12. Power the system back up.

If the installation is carried out quickly enough, the sensor will reach a stable low value less

than 1 ppm in approximately 8 hours or less.

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