TPI 712 User Manual

712

Rev. 2.x Analyzers

Flue Gas 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 and Charging

4.1 Turning On

4.2 Turning Off

4.3 Charging

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

6.2 Function 2 - Manometer

6.3 Function 3 - Combustible Gas Leak Detector

6.4 Function 4 - Date / Time

6.5 Function 5 - Combustion Analysis

7. Saving Data

8. Recalling Data

9. Printing Data

10. Logging Data

11. Communicating to a PC

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 712 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 712 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 712 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 712 which will
give you many years of reliable service.

Your TPI 712 Flue Gas Analyzer comes complete with the following stan­dard accessories:

• TPI 712 Instrument

• Rubber Boot (A765)

• Infrared Printer (A740) (model 712A740 comes with the printer)

• Soft Carrying Case (A768)

• Flue Sampling Probe (A770)

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

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

• Temperature Probe (GK11M)

• Battery Charger (A766)

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

• Exhaust Spigot (removable) (A764)

• Pressure Tubing (A774)

• Static Pressure Tips (A776)x2

• Barbed to 1/8” NPT fittings (2 each)

• Gas Valve Adapter (A611)

• Adapter Tubing (

• Instruction Manual

( ) Denotes part number

Your TPI 712 Flue Gas Analyzer has the following options available:

• PC Software for analysis of Data Logging results (see 11 &
Appendix B)

• Infrared PC link for non compatible PCs (see 11 & Appendix B)

• Various Temperature Probes (see Appendix B)

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 rechargeable 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 & 4.1)
Switches between Gross and Net Efficiency (see 5.3)
Switches between ºC and ºF (see 5.3 & 6.1)
Scrolls through mbar, kPa and inH2O (see 6.2)
Moves up through the Stored Data Addresses (see 7, 8, 9)
Increases data logging time intervals (see 10)

Zeroes pressure reading (see 6.2)
Moves down through the Stored Data Addresses (see 7, 8, 9)

Decreases data logging time intervals (see 10)

Scrolls through Combustion Analysis Displays (See 5.3)
Scrolls through Function Screens (see 6)
Turns temperature differential calculation ON/OFF (see 6.1)

Turns ch2 temperature ON/OFF (see 6.2)
Allows you to change the Date and Time (see 6.4)
Allows you to choose a Stored Data Address (see 7, 8, 9, 10)

Sends stored data to a separate infrared printer (see 9)
or IRDA adapter (p/n A767) (See 11)

Allows you to view stored data on the display (see 8)

Stores readings to memory (see 7)
Starts and Stops data logging (see 10)

Scrolls through and selects analyzer functions (see 6)
Turns Backlight ON and OFF (see 4.4)

Turns the instrument ON and OFF (see 4.1 & 4.2)

Print
COM

Recall

Store

Logger

Func

Scroll

Enter

3.2 Back View

Sample and Pressure Inlet Ports: Connection for Gas Sampling Probe (see

3.4 & 5.2)

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

Connections for Pressure Tubing: (see 3.4 & 6.2)

Calibration and Information Label: Displays calibration information and

Displays serial number

Battery Compartment: Holds rechargeable battery

Rubber Boot Protects the instrument

Calibration and
Information
Label

Battery
Compartment

Rubber
Boot

Connection for
Mini Pump
Protection Filter

Connections for
Pressure Tubing

Sample and
Pressure Inlet
Ports

3.3 Side Views

Exhaust Port Port for connection of Exhaust Adapter

Infrared Window Window for sending stored data to IR Printer or

PC (see 9 & 11)

Rubber Boot Protects the instrument from accidental damage

Exhaust

Port

Infrared
Window

Rubber
Boot

Charger
Socket

T1

T2

P (+) P (-)

Gas Sampling Port

Charger Socket Connection for 220V/115V charger (see 4.3)

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 Sample Port Connection for Gas Sampling Probe (see 5.2)
P (+) Port Connections for Pressure Tubing (see 6.2)
P (-) Port Connections for Pressure Tubing (see 6.2)

3.4 Top View

4. Turning On & Off and Charging

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 712 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 712 will auto power off if no keys have been pressed for 10 minutes and the
CO level is below 15ppm.

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 712 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 Charging

Plug the Charger supplied into the charger socket on the instrument (see 3.4). If
the instrument is turned on then a charging symbol will be displayed. Should the
instrument then be turned off, turn off automatically or be turned off when the
charger is plugged in then the charging symbol will not be displayed BUT the
instrument will still be charging.

The instrument should be charged overnight for a period of 10 to 12 hours and
will give over 6 hours Operating Time. If a beeping noise is heard during charging
disconnect the charger. This is an indication of something wrong in the charging
circuit. Please contact TPI technical assistance at 800-368-5719.

Alternatively, the instrument can be used when plugged into the charger.

4.4 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.

5. COMBUSTION ANALYSIS

5.1 Overview

Testing for carbon monoxide, oxygen, and stack temperature is very important to
the overall safety and efficiency of heating equipment. The following guidelines
and descriptions are generic and meant to provide you with a basic understand­ing of combustion testing. TPI always recommends you contact the manufacturer
of the device under test, obtain information specific to the device, and follow the
procedures and safety guidelines for performing tests and affecting repairs.

In general, for most applications flue gas samples should be taken prior to the
draft diverter or any other opening that allows room air to enter the system. This
prevents room air from mixing with gases in the flue and diluting the test sample.
To ensure accurate and consistent combustion tests, it is important gas and tem­perature samples be taken at the same location. This is easy with the TPI flue
probe because the temperature sensor is an integral part of the probe.

Prior to taking a sample, the device under test should be on and operating.
Putting the flue probe in the sample area prior to starting the device may cause
saturation of the sensors due to the higher initial concentration of carbon monox­ide that may be encountered upon start up. If this happens, allow your analyzer to
purge in fresh air until the carbon monoxide level returns to 0 ppm and the oxy­gen level returns to 20.9%. This may take more than an hour depending on how
saturated the sensors are.

The included figures show locations for performing tests on commonly encoun­tered equipment. Remember to consult with the manufacturer of the device under
test for specific test information.

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.