Teledyne 7500 Quick start guide

Brand: Teledyne

Model: 7500

Category: Measuring, testing & control

Type: Quick start guide

Teledyne 7500 is a versatile and powerful infrared gas analyzer designed to measure the concentrations of CO2, CO, CH4, SO2, and O2 in a sample gas. The analyzer employs non-dispersion infrared method for measuring CO2, CO, CH4, and SO2, while O2 is measured using a paramagnetic oxygen sensor or an external zirconia O2 sensor. A maximum of 4 components are simultaneously measurable, including O2. The analyzer features a rugged construction and is suitable for indoor use in a general purpose area. It comes with a user-friendly interface, making it easy to set up and operate.

Teledyne Analytical Instruments

QUICKSTART GUIDE

MODEL 7500

Infrared Gas Analyzer

Quickstart Guide Infrared Gas Analyzer

Teledyne Analytical Instruments

Model 7500 Quickstart Guide

Teledyne Analytical Instruments 1

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.

The Model 7500 infrared gas analyzer measures the concentrations of CO

, CO, CH

, SO

and O

contained in a sample gas. CO

, CO, CH

, and SO

are measured by non-dispersion

infrared method, while O

is measured using a paramagnetic oxygen sensor or an external

zirconia O

sensor.. A maximum of 4 components including O

(a maximum of 3 components

for other than O

measurement) are simultaneously measurable.

Front Panel (Operator Interface)

Take a minute to familiarize yourself with the analyzer’s interface. The standard 7500

Infrared Gas Analyzer is housed in a rugged case with controls and display accessible from the

front panel. The operator interface consists of eight buttons for operating the analyzer, a display

screen, plus power and back light switches.

Quickstart Guide Infrared Gas Analyzer

Teledyne Analytical Instruments 2

Control Keys:

Name

Description

Name

Description

MODE key

Used to switch the mode.

ESC key

Used to return to a previous screen

or cancel the setting midway.

SIDE key

Used to change the selected

item (by moving the cursor) and

numeral digit.

ENT key

Used for confirmation of selected

items or values, and for execution

of calibration.

UP key

Used to change the selected

item (by moving the cursor) and

to increase numeral value.

ZERO key

Used for zero calibration.

DOWN key

Used to change the selected

item (by moving the cursor) and

to decrease numeral value.

SPAN key

Used for span calibration.

Rear Panel

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

• Power Connection: Port for connecting power cable.

• Gas Connections: One inlet, exhaust out plus purge inlet.

• RS-232 Port : Digital port for standard DB-9 type cable

• Terminal Blocks 1 - 5: Interconnections for analyzer functions including:

• Analog outputs

Model 7500 Quickstart Guide

Teledyne Analytical Instruments 3

• Alarm connections

• Calibration contacts

• Range ID contacts

• Remote range change signals

• Auto calibration signals

• External O2 sensor input

• Error signals

• Pump control

Refer to the Instruction manual that shipped with your instrument for a complete list of

output signal connections.

Quickstart Guide Infrared Gas Analyzer

Teledyne Analytical Instruments 4

SETUP AND INSTALL

Mount the Analyzer

The Model 7500 is for indoor use in a general purpose area. It is NOT for hazardous

environments of any type.

For installation, select an indoor location that is vibration-free, clean, and close to an AC

power source (100-265 VAC 50/60 Hz). The instrument is designed to be either slide rail or

guide rail mounted as shown below.

Whichever mounting method is chosen, make sure there is sufficient access room on top of

the analyzer to be able to remove the top cover and perform instrument maintenance.

Gas Connections

Note: Read all cautions contained in the Instruction manual before installing sample

system.

You will need the following calibration gases:

• Zero gas: N

(CO

, CO, CH

, SO

and built-in paramagnetic O

sensor).

• Purge gas (N

or other inert gas)

• Span gas: 90% of full scale of component for analysis.

• Span gas: for built-in paramagnetic O

sensor — 90% of full scale of O

Model 7500 Quickstart Guide

Teledyne Analytical Instruments 5

If using an external zirconia O

sensor, you will need:

• Zero gas — dry air or air

• Span gas — 1-2% O

The analyzer is designed for 1/4 inch tubing. Installed fittings are 1/4” NPT. A typical

piping diagram is shown below. This diagram shows calibration gases directed to the analyzer

through solenoid valves which are controlled by the analyzer.

1. Connect the sample gas to the SAMPLE IN port.

2. Connect a vent line to SAMPLE OUT port. Exhaust to atmospheric pressure.

3. Calibration gases should be tee'd into the sample inlet with appropriate valves. (See

piping diagram).

4. Regulate the sample gas pressure to keep the sample flow around 1 ±0.5 lpm (liter

per minute).

5. Use short tubing with minimum bends for improved response time.

6. If required, connect a purge gas to the purge inlet. Use a purge flowrate of 1 lpm.

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.

See sections 3.3 and 3.4 in the Instruction Manual for additional details regarding sample

systems.

Quickstart Guide Infrared Gas Analyzer

Teledyne Analytical Instruments 6

Electrical Connections

CAUTION: READ ALL SAFETY INFORMATION REGARDING ELECTRICAL HAZARDS

ASSOCIATIED WITH THIS INSTRUMENT BEFORE MAKING ELECTRICAL

CONNECTIONS.

All electrical connections are made at the rear panel.

Main Power:

• Connect primary input power cord.

Insert the power cord into the power cord receptacle.

Terminal Block 1:

• Connect analog output signals (4 to 20 maDC or 0 to 1

VDC ) at Terminal Block 1 (1 to 10, 15 to 20). Each

channel has its own output signal.

Terminal Block 2:

• If using an external O

sensor, connect the O

sensor

input to Terminal Block 2 (1 – 2) .

Note: There are no terminals for the built-in O

sensor. It is

prewired internally at the factory.

• If used, connect input signal for remote range changing

at Terminal Block 2 position 13 to 20 as shown in the

figure.

Model 7500 Quickstart Guide

Teledyne Analytical Instruments 7

Terminal Block 3:

• Connect Remote Hold, Average Value Reset, and

Auto Calibration Remote Start contact inputs to

Terminal Block 3 as shown in the Figure.

• Connect failure alarm. Contact output is at Terminal

Block 3 (11, 12).

• Connect Range ID. Contact outputs for each channel

available at Terminal Block 3 (13 through 20).

Terminal Block 4:

• Connect span and zero calibration output signals at

Terminal Block 4 (1 through 10).

• Connect Auto Calibration Status Signal. Contact

output is available at Terminal Block 4 (13, 14).

• Connect Calibration Error Signal. Contact is available

at Terminal Block 4 (15, 16)

• Connect Pump ON/OFF signal. Output is available at

Terminal Block 4 (17, 18).

Terminal Block 5:

• Connect alarms. Alarm contacts are available for each

channel at Terminal Block 5 as shown in the figure.

Additional information regarding input and output signals

can be found in the instruction Manual in Section 3.5.

Quickstart Guide Infrared Gas Analyzer

Teledyne Analytical Instruments 8

BASIC OPERATION

Once the analyzer has been installed, it can be configured for your application. Prior to

using the instrument you must:

• Turn the power on and allow the analyzer to warm up.

• Select the range for analysis.

• Enter calibration parameters.

• Set alarm setpoints.

• Calibrate the instrument.

Additional configuration parameters are available to tailor the instrument to your particular

application. Refer to the Instruction Manual for specific information on setting of additional

system parameters.

Modes of Operation

There are three basic modes of operation, Measurement mode,

User mode and Calibration mode. Measurement mode is the default

mode and is where you view the concentration data, alarm

information and other data and messages relating to the analysis. The

measurement mode shown in the Figure to the right, displays up to 5

channels in a single screen. When viewing a channel beyond the 5

channels, press the UP or DOWN keys to scroll the screen one

channel at a time.

The User mode, is where you will setup the parameters for

analyzer. It is entered by pressing the MODE key which toggles

between Measurement and User modes. Note that in the User mode

screen, the upper left portion of the screen indicates the particular

screen you are viewing while the upper right portion prompts you for

the possible inputs within the screen.

The Calibration Mode is used for calibrating the analyzer. It is

entered by pressing either the ZERO or SPAN keys. This mode is used to set zero and span

calibration concentration, calibration range and auto-calibration details.

But before you can calibrate the analyzer there are some parameters to set up first, and these

are discussed below.

Model 7500 Quickstart Guide

Teledyne Analytical Instruments 9

Warm-Up Operation and Regular Operation

1. Turn ON the power switch at the left of the front panel. In a few moments, the

measurement screen will appear at the front panel.

2. Allow 2 hours for the instrument to warm-up.

Selecting the Analysis Range

Select the analysis range for each component.

1. Press the MODE key to display the User mode.

2. Point the cursor to “Changeover of Range” and press the

ENT key.

3. The “Channel Selection” screen appears. Press the UP or

DOWN key to select the desired CH (component). Then

press the ENT key.

4. At the next screen, select the range using the UP or

DOWN keys. (The range with a TRIANGLE mark is

currently selected.) After selection, press the ENT key.

Note: If Remote Range is set to ON, the a range change

cannot be performed on this screen. See the Instruction

Manual for information on remote range change.

Quickstart Guide Infrared Gas Analyzer

Teledyne Analytical Instruments 10

Calibration Settings

Set calibration concentration:

Here, you will set the concentration of the standard gas (zero and span) for each channel

that will be used in calibration.

1. Press the MODE key and toggle the display to the User

mode.

2. Use the UP or DOWN keys to point the cursor to

“Setting about Calibration”. Press the ENT key.

3. In the “Setting about Calibration” screen that appears,

move the cursor to “Calibration Value” using the UP or

DOWN key. Press the ENT key.

4. The next screen prompts you to select the channel you

want to set. Move the cursor to the channel (CH) you

want using the UP or DOWN key. Press the ENT key.

5. Select any concentration item you want to set using the

UP, DOWN, or SIDE key.

Note: Only instruments using the zirconia O

sensor can alter the zero setting.

6. Enter the calibration gas concentration values (zero and span) using the UP or

DOWN key to increase or decrease the displayed value. Move to the next digit by

pressing the SIDE key. When the correct calibration value is shown, save the

entry by pressing the ENT key.

7. To close the calibration concentration value setting process or abort the entry

midway, press the ESC key. A previous screen will return.

Manual zero individually or all at once:

Here you will set whether you want to zero calibrate all components at once or individually

channel by channel.

1. Press the MODE key and toggle the display to USER mode.

Model 7500 Quickstart Guide

Teledyne Analytical Instruments 11

2. Move the cursor to “Setting about Calibration” using the UP or DOWN key.

Press the ENT key.

3. In the next screen use the UP or DOWN key to move

to “About ZERO Calibration”. Press the ENT key.

4. In the next screen, point the cursor to CH you want to

set by using the UP or DOWN key. Press the ENT

key.

5. In the next screen, select “At once” or “Each” by

pressing the UP or DOWN key. Selecting “At once”

will allow the CH (components) to be zero-calibrated

at the same time. Selecting “Each” allows the CH

(components) to be individually zero-calibrated.

After setting, press the ENT key to save the

selections.

6. To close the calibration screen or abort the entry midway, press the ESC key. A

previous screen will return.

Set the Range to Calibrate on:

This mode is used to set the range for each CH (component) to calibrate on. You can

calibrate the component on a single range or both ranges.

1. Press the MODE key to display the User mode.

2. Move the cursor to “Setting about Calibration” using the UP or DOWN keys.

Press the ENT key.

3. In the next screen that appears, select “About Calibration Range” using the UP or

DOWN keys then press the ENT key.

4. In the next screen, select the CH you want to set by pressing the UP or DOWN

keys. Press the ENT key.

5. In the “Calibration Selection” screen that appears,

select “Both” or “Current” by pressing the UP or

DOWN key. When selecting “both”, Range 1 and

Range 2 of the set CH are calibrated together. When

selecting “Current”, the single range selected at the set

CH is calibrated.

Quickstart Guide Infrared Gas Analyzer

Teledyne Analytical Instruments 12

6. To close the calibration screen or abort midway, press ESC.

Enabling Auto Calibration:

Here you can set which components are automatically calibrated. It is assumed that for the

procedures listed in this Quickstart Guide, Auto Calibration is disabled and calibration is

performed manually. To make sure of the correct setting:

1. Press the MODE key to display the User mode.

2. Point the cursor to “Setting about Calibration” using the UP or DOWN key. Press

the ENT key.

3. In the “next screen, point the cursor to “Auto Calibration Components” using the

UP or DOWN key. Press the ENT key.

4. In the next screen, move the cursor to the CH you want to set using the UP or

DOWN key. Press the ENT key.

5. In the “Auto Calibration Selection” screen that appears,

select “enable” or “disable” by pressing the UP or

DOWN key. For the Quickstart procedure, make sure

all components are set to DISABLE. After setting,

press the ENT key. “Enable” will allow that channel to

be calibrated using the Auto Calibration feature.

6. To close the auto calibration screen or abort midway, press ESC to return to a

previous menu.

Note: Any component set to “enable” will be calibrated to zero at once at the time of

auto calibration regardless of setting chosen in “Manual Zero Individually or At

Once”.

To setup and use the Auto Calibration feature, refer to the Instruction manual shipped with

your instrument.

Setting Alarms

Prior to using the analyzer, you should set the alarm upper and lower limit values to provide

an alarm output during measurement.. High/low alarms are available for each channel. The

setting range is 0-100% full scale for each range.

1. Press the MODE key to display the User mode.

2. Point the cursor to “Alarm Setting” using the UP or DOWN key, then press the ENT

key.

Model 7500 Quickstart Guide

Teledyne Analytical Instruments 13

3. At the next screen, select the desired CH and press the

ENT key.

4. At the next screen, use the UP or DOWN keys until the

cursor is aligned with the alarm you want to set or adjust.

Then press the ENT key.

Note: Before changing the alarm setting, set the ON/OFF to

OFF

Note: Set the values so that upper limit value > lower limit

value and that (upper limit value - lower limit value) > hysteresis error. (Refer to

the Instruction Manual for setting or displaying the hysteresis error.)

5. Move the cursor to the item to adjust or set and use the UP or DOWN key to

increase or decrease the alarm setpoint value. Move to the next digit by pressing

the SIDE key. When the correct alarm setpoint is shown, save the entry by

pressing the ENT key.

Upper limit value: sets the upper limit value (concentration) of alarm.

Lower limit value: sets the lower limit value (concentration) of alarm.

ON/OFF: enables the alarm function when set to ON, or disables the

alarm function when set to OFF.

Note: The upper limit value cannot be set below the lower limit value, and the lower

limit value cannot be set above the upper limit value. If it is desired to set the

upper limit value below the lower limit value already stored in the memory,

reduce the lower limit value first.

6. Use the ESC key to leave the Alarm Setting screen and return to the previous screen.

Calibration

Zero Calibration:

1. Make sure an appropriate zero gas is properly connected to your analyzer. (Refer

back to Gas Connections if necessary).

2. Press the ZERO key to display the Manual Zero

Calibration screen.

Quickstart Guide Infrared Gas Analyzer

Teledyne Analytical Instruments 14

3. Select the CH (component) to be calibrated by pressing the UP or DOWN key. Then

press the ENT key to initiate zero gas flow to the analyzer.

Note: For all components that were set to “at once” in the “Zero Calibration setting”, the

zero calibration will be carried out simultaneously.

4. After the display has stabilized (this may take a few moments), press the ENT key.

Zero calibration in the range(s) indicated by the cursor will be performed.

5. To close the “Zero Calibration “ or cancel this mode midway, press the ESC key to

return to the previous screen.

Span Calibration:

1. For span calibrating the CO

, CO, CH

, SO

and built-in paramagnetic O

sensor

channels, use a standard gas with a concentration of 90% or more on the anticipated

range. For an external zirconia O

sensor, use a standard gas of about 2 vol%.

2. Press the SPAN key to display the Manual Span

Calibration screen.

3. Select the component to be calibrated by pressing the UP

or DOWN keys. Then press the ENT key to initiate span

gas flow to the analyzer..

Note: If the range to calibrate on has been set to “both”, span calibration is performed

together on the 2 Ranges.

4. After the display has stabilized (this may take a few moments), press the ENT key.

Span calibration on the component and range(s) indicated by the cursor will be

performed.

5. To close the “Span Calibration “or cancel this mode midway, press the ESC key to

return to the previous screen.

Measurement Mode

After calibration the Model 7500 will return to the

Measurement mode and the instrument is now ready for operation.

Teledyne 7500 Quick start guide

Brand: Teledyne

Model: 7500

Category: Measuring, testing & control

Type: Quick start guide

Download PDF

report

Teledyne 7500 Quick start guide

Teledyne 7500 Quick start guide

Related papers

Other documents