TPI 708 User Manual

708

Rev. 2.x Analyzers

Combustion Efficiency Analyzer

The Value Leader

TM

www.tpi-thevalueleader.com

Contents

1. Introduction

2. General Overview

3. Instrument Overview

3.1 Front View

3.2 Back View

3.3 Side Views

3.4 Top View

4. Turning On & Off

4.1 Turning On

4.2 Turning Off

4.4 Activating The Backlight

5. Combustion Analysis

5.1 Overview

5.2 Procedure

5.3 Combustion Displays

5.4 Typical Test Locations

5.5 Typical Test Results

6. Function Selection

6.1 Function 1 - Thermometer

6.4 Function 2 - Date / Time

6.5 Function 3 - Combustion Analysis

7. Saving Data

8. Recalling Data

9. Printing Data

Appendix A Specifications
Appendix B Calibration & Service
Appendix C Guarantee
Appendix D Installing the Optional A773 Filter
Appendix E Error Codes and Trouble Shooting
Appendix F CO Alarm & Auto Power Off
Appendix G Manually Initializing Sensors

1. Introduction

Thank you for purchasing TPI brand products. The TPI 708 Flue Gas
Analyzer is a state of the art, easy to use analyzer designed not only to
display and calculate the required readings from a flue but also to
cover most of the other measurements associated with combustion.
The instrument is ruggedly constructed and comes with a 3 Year unit
and 2 Year sensor Guarantee.

2. General Overview

The TPI 708 combustion analyzer uses state of the art electrochemical
sensors. This sensor technology provides the longest lasting, most
accurate and reliable means for performing combustion tests. The sen­sors in your analyzer will need to be replaced periodically and calibra­tion is recommended once every year.

Electrochemical sensors by nature are always active. Therefore the
time the analyzer is off and not being used must be taken into account
when determining sensor life. The sensors in your analyzer are war­ranted for two years. This warranty does not cover sensors damaged
through misuse of the analyzer.

You should keep the battery of your 708 charged so power is constant­ly being supplied to your sensors.

The following guidelines will help prevent damage to your sensors:

Always use the mini pump filter when testing flue gases.
Always periodically check and replace the mini pump filter as needed.
Always make sure the in-line filter / water trap is installed properly.
Always periodically check and replace the in-line filter as needed.
Always remove water or condensation from the inside of the in-line fil­ter / water trap assembly prior to performing tests.
Always use the optional oil filter (p/n A773) when performing tests on
oil burning equipment.

General Overview (Continued)

Never over saturate your sensors by performing tests on equipment with
gas levels beyond the capability of you analyzer.

Always keep the A762 water trap / filter assembly clean and replace the fil­ter as necessary. Replacement filter part number is A762F.

This manual will guide you through the functions of the TPI 708 which will
give you many years of reliable service.

Your TPI 708 Flue Gas Analyzer comes complete with the following stan­dard accessories:

• TPI 708 Instrument

• Rubber Boot (A765)

• Soft Carrying Case (A768)

• Flue Sampling Probe (A770)

• In-Line Filter assembly installed on Flue probe (A762)

• Temperature Probe (GK11M)

• Mini Pump Protection Filter Assembly and spare filters (A763)

• Exhaust Spigot (removable) (A764)

• Instruction Manual

( ) Denotes part number

Your TPI 708 Flue Gas Analyzer has the following options available:

• Infrared printer (A740)

• Spare In-Line Filter (A762F is a package of 5 filters)

3. Instrument Overview

3.1 Front View

Rubber Boot Protects the instrument from accidental damage

Display Large 3 Parameter Backlit LCD Display

Battery Condition Icon Shows condition of batteries.

Keypad Selects all available functions

Selected Fuel Type N GAS, LPG, LIGHT OIL, HEAVY OIL, OPT 1

(Bituminous Coal), OPT 2 (Anthracite Coal),
OPT 3 (Coke), OPT 4 (Butane), OPT 5 (Wood),
OPT 6 (Bagasse)

Rubber
Boot

LCD
Display

Keypad

Battery
Condition
Icon

Selected
Fuel Type

Scrolls through selectable fuels (see 3.1 )
Switches between Gross and Newt Efficiency (see 4.1.2)
Switches between ºC and ºF (see 4.2.1)
Moves up through the Stored Data Addresses (see 5, 6 & 7)

Moves down through the Stored Data Addresses (see 5, 6 & 7)

Scrolls through Combustion Analysis Displays
Scrolls through Function Screens (see 4.1)

Turns temperature differential calculation ON/OFF (see 4.2.1)
Turns ch2 temperature ON/OFF (see 4.3.1)
Allows you to change the Date and Time (see 4.5)
Allows you to choose a Stored Data Address (see 5, 6, 7, & 8)

Sends stored data to a separate infrared printer (see 7)

Allows you to view stored data on the display (see 6)

Stores readings to memory (see 8)

Scrolls through and selects analyzer functions (see 4)
Turns Backlight ON and OFF (see 4)

Turns the instrument ON and OFF (see 3.1 & 3.2)

Print

Recall

Store

Func

Scroll

Enter

3.2 Back View

Sample Inlet Port: Connection for Gas Sampling Probe (see

3.4 & 5.2)

Connection for Mini Pump
Protection Filter (see 3.4 & 6.2)

Calibration and Information Label: Displays calibration information and

Displays serial number

Battery Compartment: Holds “AA” batteries

Calibration and
Information
Label

Battery
Compartment

Connection for
Mini Pump
Protection Filter

Sample Inlet
Port

3.3 Side Views

Exhaust Port Port for connection of Exhaust Adapter

Infrared Window Window for sending stored data to IR Printer

(see 9)

Rubber Boot Protects the instrument from accidental damage

Exhaust

Port

Infrared
Window

Rubber
Boot

T1 Socket Connection for thermocouple plug on flue

probe (see 5.2)
Connection for any 'K' type thermocouple
probe (see 6.1)

T2 Socket Connection for any 'K' type thermocouple

probe (see 5.2 & 6.1)

Gas Sampling Port Connection for Gas Sampling Probe (see 5.2)

3.4 Top View

T1

T2

Gas Sampling Port

4. Turning On & Off

4.1 Turning On

Always: - Before turning on please ensure that the Mini Pump Protection Filter

assembly and the Temperature Sampling Probe complete with In-Line Filter or the
Tubing & In-Line Filter for Leak Detection are not connected to the Gas Sample
Port (see 2.2 or 2.4)

Press and hold down the Power Key and the TPI 708 will start its 30 second
countdown 'PURGE' will be displayed: - The instrument MUST be turned on in a
clean air environment as the 30 second purge will set the Carbon Monoxide level
to Zero and the Oxygen to 20.9%.
Ensure that the filters are clean and dry as dirty or wet filters will result in a loss
of flow rate and 'Lo Flo' will be displayed to inform you that filters should be
changed

During the last 20 seconds of the 30 second purge time the user can scroll
through the following Fuels: - Natural Gas, LPG, Light Oil, Heavy Oil, OPT1 :
Bituminous Coal, OPT 2 : Anthracite Coal, OPT 3: Coke, OPT 4: Butane, OPT 5:
Wood (Dry), OPT 6: Bagasse by pressing the Up Arrow Key to select the Fuel
they are working with. When desired fuel is displayed release the key, displayed
fuel is now selected.

After the 30 second countdown the instrument is ready to take Flue, Temperature,
Pressure or Leak Detection readings and Combustion Display 1 will be the first
display.

The 708 will auto power off if no keys have been pressed for 10 minutes and the
CO level is below 15ppm. This feature can be disabled see Appendix F.

The Scroll/Enter Key allows you to scroll through the combustion displays as out­lined in section 5.3. The Func Key is used to select the 708 function mode and
allows you to set it to be a combustion analyzer, manometer, thermometer, or
combustible leak detector. In addition, the Func Key is used to access the date
and time display. See section 6 for more information on the Func Key.

NOTE: When selecting oil as fuel be sure to use the optional

oil filter (A773) or readings could become erratic. See
Appendix E for installation instructions.

4.2 Turning Off

Always: - Before turning off return the instrument to a clean air environment and
allow the Carbon Monoxide level to return to below 15ppm and the Oxygen level
to return to 20.9% (± 0.3%) Press the Power Key to turn the instrument off:­NOTE Should you attempt to turn the instrument Off and the CO reading is above
15ppm then the instrument will remain On and a short Beep will be heard. The
Instrument can only be switched off if the CO is below 15ppm

The instrument has an auto shut off after 10 minutes should no keys have been
pressed for this period and as mentioned above that the CO is below 15ppm.
Should the CO be above 15ppm then the 10 minute auto shut off countdown will
not begin till the CO has gone below 15ppm

4.3 Activating the Backlight

The display backlight can be activated at any time by pressing and holding down
the Func Key for approximately 2 seconds. The backlight will automatically shut
off after approximately 20 seconds to preserve battery life.