TPI 709R User manual

Test Products International, Inc.
9615 SW Allen Blvd., Ste. 104
Beaverton, OR 97005
Tel: [phone] Fax: [phone]
www.tpi-thevalueleader.com
Test Products International, Ltd.
342 Bronte Road South, Unit #9
Milton Ontario Canada L9T5B7
Tel: [phone] Fax: [phone]
709R
Combustion Efficiency Analyzer
The Value LeaderTM
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. Basic Analyzer Controls
4.1 Turning The Analyzer On
4.2 Turning The Analyzer Off
4.3 Charging The Analyzer
4.4 Activating The Backlight
5. Combustion Analysis Overview
5.1 Procedure
5.2 Combustion Displays
5.3 Typical Test Locations
5.4 Typical Test Results
6. Function Selection
6.1 Function 1 - Thermometer
6.2 Function 2 - Manometer
6.3 Function 3 - Date / Time
6.4 Default Function - Combustion Analyzer
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 Settings
Appendix G Manually Initializing Sensors
Appendix H Resetting Pressure Sensor Zero
Appendix I Technical Notes
Notes:

Notes:
1. Introduction
Thank you for purchasing TPI brand products. The TPI 709R 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 709R combustion analyzer uses state of the art electrochemi-
cal sensors. This sensor technology provides the longest lasting, most
accurate and reliable means for performing combustion tests. The sen-
sors in your analyzer will need to be replaced periodically and calibra-
tion 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 war-
ranted for two years. This warranty does not cover sensors damaged
through misuse of the analyzer.
You should keep the batteries of your 709R fresh so power is con-
stantly 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 fil-
ter / 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 A794 water trap / filter assembly clean and replace the fil-
ter as necessary. Replacement filter part number is A794F.
This manual will guide you through the functions of the TPI 709R which
will give you many years of reliable service.
Your TPI 709R Flue Gas Analyzer comes complete with the following stan-
dard accessories:
• TPI 709R Instrument
• Rubber Boot (A765)
• Battery Charger (A766) - 1 each
• Soft Carrying Case (A787)
• Flue Sampling Probe (A770)
• In-Line Filter assembly installed on Flue probe (A795)
• Temperature Probe (GK11M)
• Pressure Tubing (A774) - 1 each 6’ piece
• Mini Pump Protection Filter Assembly and spare filters (A763)
• Exhaust Spigot (removable) (A764)
• Instruction Manual
( ) Denotes part number
Your TPI 709R Flue Gas Analyzer has the following options available:
• Infrared printer (A740)
• Spare In-Line Filter (A794F is a package of 5 filters)
• Water filter in water trap (A794W)
Notes:

Appendix I: Technical Notes
Note 1: When performing a pressure or draft test during a combustion test, the
pump can be turned on to provide a continuous sample to the sensors. This
enables pressure adjustments to be made and the affect to the combustion
process can be seen by returning to combustion analyzer mode. Use the FUNC
Key to activate manometer mode. Press and hold the Up Arrow Key until the
pump reactivates. Perform a pressure test and then use the FUNC key to activate
combustion analyzer mode. Repeat this process until pressure adjustments are
complete.
Note 2: Several factors affect combustion efficiency. Dirty or clogged air filters
reduce the amount of air available for combustion therefore reducing efficiency.
Obstructions in the flue block exhaust gases and alter the air mixture in the com-
bustion chamber which reduces efficiency. Air leaks in the combustion chamber
also alter the mixture causing decreased efficiency.
Note 3: The primary way to affect change in combustion efficiency when working
with modern gas fired equipment is through gas manifold pressure adjustment.
Confirm manifold pressures are within maufacturers specifications prior to per-
forming a combustion test. Once manifold pressures are within limits a combus-
tion test can be performed to provide information regarding any adjustments that
may be needed.
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
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.

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
Appendix H: RESETTING PRESSURE SENSOR ZERO
Manually resetting the pressure sensor zero point
If the pressure sensor will not zero as described in section 6.2 use the proce-
dure below to reset the zero point of the sensor.
WARNING : Changing parameters in field calibration mode can adversely affect
the operation of your analyzer. Follow the instructions carefully.
1. Press and hold the Scroll/Enter Key down intil ‘FILD CAL’ is displayed. The 709R
will cycle through a 30 second countdown then display ‘CAL’, Air’, gAS’.
2. Use the Up Arrow Key to select ‘Air’ by making it blink. Press the Scroll/Enter
Key to accept the selection.
3. 709R Display: ‘CAL’, ‘FLo’, ‘oPEn’. Action : Press the Func Key to bypass.
4. 709R Display: ‘CAL’, ‘FLo’, ‘CLos’. Action : Press the Func Key to bypass.
5. 709R Display: ‘CAL’, ‘LEAK’, ‘rEF’. Action : Press the Func Key to bypass.
6. 709R Display: ‘0ppm’, ‘Co’, ‘rEF’. Action : Press the Func Key to bypass.
7. 709R Display: ‘20.9%’, ‘o2’, ‘rEF’. Action : Press the Func Key to bypass.
8. 709R Display: ‘0.0mbar’, ‘0.0’, ‘oFS’. Action : Press the Func Key to bypass.
9. 709R Display: ‘2000’, ‘A-r’, ‘SEt’. Action : Press the Func Key to bypass.
10. 709R Display: ‘Auto’, ‘oFF’, ‘En’. Action : Press the Func Key to bypass.
11. 709R Display: ‘CAL’, ‘StoP’, ‘go’. Action : Press the Up Arrow Key to select
‘StoP’ by making it blink and press the Scroll/Enter Key to accept the selection.
The 709R will return to normal operation
If the 709R continues to fail to automatically initialize or this procedure fails
to initialize the sensors, return your analyzer to Test Products International.

Appendix G: MANUALLY INITIALIZING SENSORS
Manually Initializing the Carbon Monoxide and Oxygen Sensors
If the CO or O2 sensor fails to initialize, this procedure can be performed to
try and manually initialize the sensor(s).
WARNING : Changing parameters in field calibration mode can adversely
affect the operation of your analyzer. Follow the instructions carefully.
1. Press and hold the Scroll/Enter Key down until ‘FILD CAL’ is displayed. The
709R will cycle through a 30 second countdown then display ‘CAL’, Air’,
gAS’.
2. Use the Up Arrow Key to select ‘Air’ by making it blink. Press the Scroll/Enter
Key to accept the selection.
3. 709R Display: ‘CAL’, ‘FLo’, ‘oPEn’. Action : Press the Func Key to bypass.
4. 709R Display: ‘CAL’, ‘FLo’, ‘CLos’. Action : Press the Func Key to bypass.
5. 709R Display: ‘0ppm’, ‘Co’, ‘rEF’. Action : Press the Scroll/Enter Key. After the
10 second countdown is complete press the Scroll/Enter Key twice.
6. 709R Display: ‘20.9%’, ‘o2’, ‘rEF’. Action : Press the Scroll/Enter Key. After the
10 second countdown is complete press the Scroll/Enter Key twice.
7. 709R Display: ‘2000’, ‘A-r’, ‘SEt’. Action : Press the Func Key to bypass.
8. 709R Display: ‘Auto’, ‘oFF’, ‘En’. Action : Press the Func Key to bypass.
9. 709R Display: ‘CAL’, ‘StoP’, ‘go’. Action : Press the Up Arrow Key to select
‘StoP’ by making it blink and press the Scroll/Enter Key to accept the selec-
tion. The 709R will return to normal operation
If the 709R continues to fail to automatically initialize or this procedure
fails to initialize the sensors, return your analyzer to Test Products
International.
3.2 Back View
Sample and Pressure Inlet Ports: Connection for Gas Sampling Probe (see
3.4, 5.2, 6.2)
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 batteries
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
(see 9)
Rubber Boot Protects the instrument from accidental damage
Exhaust
Port
Infrared
Window
Rubber
Boot
Appendix F: CO ALARM & AUTO OFF SETTINGS
Setting the Carbon Monoxide Alarm Point and/or Auto Power Off Mode
The CO alarm and auto power off settings can be changed as necessary by per-
forming the following procedure.
WARNING : Changing parameters in field calibration mode can adversely affect
the operation of your analyzer. Follow the instructions carefully.
1. Press and hold the Scroll/Enter Key down until ‘FILD CAL’ is displayed. The
709R will cycle through a 30 second countdown then display ‘CAL’, Air’, gAS’.
2. Use the Up Arrow Key to select ‘Air’ by making it blink. Press the Scroll/Enter
Key to accept the selection.
3. 709R Display: ‘CAL’, ‘FLo’, ‘oPEn’. Action : Press the Func Key to bypass.
4. 709R Display: ‘CAL’, ‘FLo’, ‘CLos’. Action : Press the Func Key to bypass.
5. 709R Display: ‘0ppm’, ‘Co’, ‘rEF’. Action : Press the Func Key to bypass.
6. 709R Display: ‘20.9%’, ‘o2’, ‘rEF’. Action : Press the Func Key to bypass.
7. 709R Display: ‘2000’, ‘A-r’, ‘SEt’. Action : If you are not changing the CO alarm
point press the Func Key. Otherwise press the Up and Down Keys to set the
ppm level the alarm will sound at. Factory default is 2000ppm. Press the
Scroll/Enter Key to accept the selection.
8. 709R Display: ‘Auto’, ‘oFF’, ‘En’. Action : If you are not changing the auto power
off mode press the Func Key. Otherwise press the Up and Down Arrow Keys to
enable (En) or disable (dis) the auto off function. Factory default is enabled
(En). Press the Scroll/Enter Key to accept the selection.
9. 709R Display: ‘CAL’, ‘StoP’, ‘go’. Action : Press the Up Arrow Key to select
‘StoP’ by making it blink and press the Scroll/Enter Key to accept the selection.
The 709R will return to normal operation

Appendix E: ERROR CODES & TROUBLESHOOTING (Continued)
Problem Possible Cause Corrective Action
Efficiency reading incorrect NET efficiency selected.
Ambient temperature probe
not plugged in to T2.
Incorrect fuel selected.
Select GROSS efficiency.
See section 5.3.
Plug ambient probe into T2.
See section 5.2.
Select the proper fuel for the
equipment being tested. See
section 4.1.
Readings are erratic when
working on oil fired equip-
ment.
A773 oil filter not installed or
installed incorrectly. Make sure the optional oil fil- ter (A773) is installed. See
Appendix D.
One or all of the following
parameters; Ratio, CO air
free, excess air, and efficien-
cy read and print dashes.
Measured values are such
that the calculated values of
these parameters are out of
range.
Redo combustion test. Since
these are calculated values,
the measure values must be
within certain levels for these
to display. If the measured
oxygen level is above 19.9%
these parameters won’t
read.
These parameters might not
display or be applicable in
some tests.
Analyzer won’t turn off Oxygen and/or carbon
monoxide levels outside lim-
its.
Allow the analyzer to purge
longer.
3.4 Top View
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)
Charger
Socket
T1
T2
P (+) P (-)
Gas Sampling Port

4. Basic Analyzer Controls
4.1 Turning The Analyzer 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 709R 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 709R 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 out-
lined in section 5.3. The Func Key is used to select the 709R 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.
Appendix E: ERROR CODES & TROUBLESHOOTING
The 709R analyzer will display certain codes to let you know of a malfunction.
Code
Displayed Code Definition Possible Causes Corrective Action
Flo
Err Pump not drawing sample at
correct flow rate. Blockage / kink in flue probe hose.
Dirty or blocked filter(s).
Worn pump.
Check and rectify.
Replace filter(s).
Return to TPI for service.
InIt
O2
Err
Oxygen sensor failed to ini-
tialize Flue probe connected to
709R prior to power up.
709R did not purge com-
pletely from last sample.
Worn or defective oxygen
sensor.
Disconnect probe and
restart.
Purge for 20 minutes and
restart.
Return to TPI for sensor
replacement or install new
sensor.*
Try manually initializing the
sensor. See Appendix G.
InIt
CO
Err
Carbon monoxide sensor
failed to initialize. Flue probe connected to
709R prior to power up.
709R did not purge com-
pletely from last sample.
Worn or defective carbon
monoxide sensor.
Disconnect probe and
restart.
Purge for 20 minutes and
restart.
Return to TPI for sensor
replacement or install new
sensor.*
Try manually initializing the
sensor. See Appendix G.
Lo
bat Low battery. Battery needs to be charged. Charge battery. If the battery
won’t hold a charge, replace
the battery.
oFL Overflow indication. The car-
bon monoxide being mea-
sured is above the instru-
ments capability.
CO being measured is too
high or low. Remove the CO source and
allow the 709R to purge.
oFL Overflow indication. The tem-
perature being measured is
outside the maximum mea-
surement capability.
Temperature being measured
is too high or low. Remove pressure source.
oPEn Unable to read thermocouple
(temperature). Temperature probe not con-
nected to input.
Worn temperature sensor.
Connect temperature probe
to analyzer.
Replace temperature probe
or flue probe.
*Sensor replacement requires calibration gas.

Appendix D: INSTALLING THE OPTIONAL A773 OIL FILTER
When performing combustion tests on oil fired equipment it is important to use
the optional A773 oil filter to ensure stable readings. The A773 does not have to
be removed when working with other types of fuels.
PROCEDURE
1. Pull the yellow thermocouple out of the cord channel in the tubing up to the
cord stop.
2. Cut the tubing approximately 1 1/2 inches from the end of the A762 water trap / fil-
ter assembly.
3. Insert the A773 oil filter into the tube below the A762.
4. Cut the remaining piece of tube into a 1 1/2 inch piece and connect it onto the end
of the A773 oil filter.
5.. Press the thermocouple cord into the cord channel.
The A773 should be replaced when most of the pellets become discolored.
4.2 Turning The Analyzer 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 The Analyzer
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 the battery pack needs to be replaced
or of something wrong in the charging circuit. Please contact TPI technical assis-
tance at 800-368-5719.
The 709RRR can be used while plugged into the charger even without a battery
installed.
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 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 understand-
ing 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 tem-
perature 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 monox-
ide 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 oxy-
gen 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 encoun-
tered 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.
Appendix B: CALIBRATION & SERVICE
It is recommended that the instrument be calibrated every 12 months. Please
consult Test Products International for further details.
The following are consumable parts for the instrument:
In-Line Filter Element (pkg of 5) User Replaceable A794F
Mini Pump Protection Filter Assem. User Replaceable A763
**Oxygen Sensor User / Factory Replaceable A761
**Carbon Monoxide Sensor User / Factory Replaceable A760
**Sensor replacement requires calibration gas.
The following are accessories for the instrument:
Flue Temperature Probe w/k-type Standard A770
'K' Type Temperature Probe Standard GK11M
In-Line Filter Complete Standard A794
Mini Pump Protection Filter Assem. Standard A763
Rubber Boot Standard A765
Infrared Printer Optional A740
Soft Carrying Case Standard A768
Exhaust Spigot Standard A764
Appendix C: GUARANTEE
Your TPI 709R Flue Gas Analyzer is guaranteed free from defects in materials
and workmanship for 3 Years from the date of purchase. This guarantee does
not affect your statuary rights. For additional information please refer to the
included warranty card or contact TPI at 800-368-5719.
To obtain warranty performance or maintenance on your analyzer: - Include
with the product your name, address, phone number, written description of
the problem and proof of purchase date. Carefully package and return to:
TPI / Attn. Repair
9615 SW Allen Blvd. Suite 104
Beaverton, OR 97005

Appendix A : SPECIFICATIONS (Continued)
Pressure Measurement
Selectable Ranges mbar, kPa and inH2O
Range - 150 mbar to + 150 mbar
-15 kPa to + 15 kPa
-60 inH2O to 60 inH2O
Resolution 0.01 mbar, 0.001 kPa, 0.001 inH2O
Accuracy +/- 0.5% fsd
Temperature Measurement
Input Type K-Type thermocouple
Range -58°F to 1832°F (-50°C to 1000°C)*
Resolution 1°F (1°C)
Accuracy +/- (0.3% of rdg + 2°F) or +/- (0.3% of rdg +
1°C)
* The thermocouple supplied (GK11M) has the ability to measure tempera-
tures in the -50°F to 950°F range. The 712 accepts industry standard K-type
thermocouple probes with sub-mini connectors.
COMBUSTION ANALYSIS (Continued)
5.1 Procedure
1. Turn the 709R on as outlined in section 4.1. At any time you can activate
the Backlight by holding down the Func/Backlight Key for 2 seconds. The
backlight will automatically shut off after 20 seconds to preserve battery life.
2. Ensure you have connected the Mini Pump Protection Filter assembly and
Temperature Sampling Probe complete with In-Line Filter to the Gas Sample
Port (see 3.2 or 3.4) and the 'K' Type Thermocouple Plug into Thermocouple
(T1) Socket (see 3.4). The GK11M ambient air temperature probe must be
connected to the (T2) socket. (refer to figure below for correct hookup)
WARNING: - Ensure that the In-Line Filter hangs in a vertical position when
readings are being taken, particularly if water is visible. Failure to comply may
result in damage to the instrument.
WARNING: - There is ONLY one correct way to connect the 'K' type thermo-
couple plug into the socket (see 2.4). Forcing the plug into the socket the
wrong way round may result in damage to the instrument.
3. Insert the flue probe into the test location of the device under test. The
probe tip should be in the middle of the flue pipe or exhaust stream. Refer to
figures 1 through 3 for typical test locations.
Mini Pump
Protection Filter
Assembly
Ambient Air
Connection (T2)
GK11M Probe
Flue Probe
Connection (T1)
In-line Filter
Assembly
Flue Probe
Tubing

COMBUSTION ANALYSIS (Continued)
4. As seen below, use the Scroll/Enter Key to move through the various com-
bustion displays.
5.2 Combustion Displays
You can move through the following Combustion Analysis Screens by repeat-
edly pressing Scroll/Enter:
• Combustion Display 1 (Default Start Up Display)
• Displays Carbon Monoxide (CO) reading in parts per million
(ppm)
• Displays calculated Carbon Dioxide (CO2) figure in percentage
(%)
• Displays calculated CO/CO2 (Ratio) figure
WARNING: - Should the CO reading rise above 2,000ppm a continuous series of
Alarm Beeps will be heard. The Probe should immediately be disconnected from
the instrument and the instrument returned to a clean air environment. This Alarm
alerts the user that there is a high concentration of CO, and this procedure will
protect the sensors within the instrument.
• Combustion Display 2
• Displays Oxygen (O2) reading in percentage (%)
• Displays calculated Excess Air (X Air) figure in percentage
• Displays calculated Efficiency (Eff.) figure in percentage
• Pressing the Up Arrow Key will toggle between Gross &
Net Efficiency (Note: Gross Efficiency is used in the USA)
• Combustion Display 3
• Displays Carbon Monoxide (CO) reading in parts per million
(ppm)
• Displays Oxygen (O2) reading in percentage (%)
Appendix A : SPECIFICATIONS
Instrument
Operating Temperature Range 14°F to +122°F (-10°C to +50°C)
Battery 1.5V AA size (3)
Battery Life > 6 Hours
Fuels Natural 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)
Display Backlit LCD
Data Storage 50 sets of readings
Time & Date 24 Hour Real Time Clock
Dimensions 200mm x 90mm x 60mm
Weight 500g
Casing Rubber Boot as Standard
Switch Off Failsafe
Exhaust Safety Spigot
Conforms to BS7927 (and the draft BS7967)
Flue Temperature Probe
Construction Pistol Grip with Stainless Steel Shaft
Hose Length 2500mm
Insertion Length 200mm
'K' Type Thermocouple Accuracy +/- 0.3%, +/- 1°C
Maximum Temperature 800°C
Gases
Range Resolution Accuracy
Oxygen 0-25% 0.1% +/- 0.3%
Carbon Monoxide 0-10,000 ppm 1 ppm +/- 5 ppm or 5%
Whichever is greater
Carbon Dioxide 0-25% 0.1% Calculated
CO/CO2 Ratio 0-0.999 0.001 Calculated
Combustion Efficiency 0-100% 0.1% Calculated

PRINTING DATA (Continued)
Printout Interpretation
Data from combustion
test is printed here.
Smoke Test Result. For
use on oil fired equip-
ment.
(Circle one to indicate
the result of a smoke
test performed using
the optional A788
smoke test pump.)
Date and time of
combustion test.
Fuel type selected
during test.
Customer information
and signed confirmation
of test.
(Fill in this data and
have the customer sign
for confirmation.)
COMBUSTION ANALYSIS (Continued)
5.2 Combustion Displays (continued)
• Combustion Display 4
• Displays CO air free (-CF-)
• Combustion Display 5
• Displays Temperature reading of Channel 1 (T1) in degrees
Centigrade (ºC)
• Displays Temperature reading of Channel 2 (T2) in degrees
Centigrade (ºC)
• Displays the Differential Temperature (Diff.) between ch1 and
ch2 in ºC
• 'oPEn' will be displayed if no 'K' type probe is connected to the
thermocouple socket
5.. During a combustion test you can save, print, and send data to a computer.
See section 7 through 11. Allow readings to stabilize before saving or printing the
data.
6. After the test is complete, remove the flue probe from the test location and
allow the analyzer to purge in a fresh air environment. Turn the analyzer off as
outlined in section 4.2.
NOTE: When selecting oil as fuel be sure to use the optional
oil filter (A773) or readings could become erratic.

5.3 TYPICAL TEST LOCATIONS
Atmospheric Gas Fired Fan Assist Boiler / Furnace
Typical Test Locations
COMBUSTION ANALYSIS (Continued)
Figure 1
9. PRINTING DATA
WARNING: - To operate correctly there must be a clear line of sight between
the Infrared Window on the instrument (see 3.3) and the Infrared Window on
the IR Printer (see Printer instructions). Place the printer so it is no closer
than approximately 6 inches from the analyzer.
1. Press the Print Key once 'rEAL', “Stor’, and “Cal” will be displayed and
‘rEAL’ will be flashing.
To cancel printing press the Print Key and use the
Up/Down Arrow Keys to select “Yes” and press the Scroll/Enter Key.
Selecting ‘rEAL’ will cause the 709R to print the test data currently on the
display (real time data). Selecting ‘Stor’ will cause the 709R to print data
stored in memory. Selecting “Cal” will cause the 709R to print the last
date of calibration. Use the Up and Down Arrow Keys to select the desired
print mode and press the Scroll/Enter Key.
REAL Print Mode - If rEAL print mode is selected, the analyzer will dis-
play ‘Wait’ ‘out’ and bars will change position on the LCD until printing is
complete.
STOR Print Mode - If Stor mode is selected, 'Addr' will be displayed on
the top line along with 'SA ' and a location number from 0 to 49 will be
flashing on the screen. Select the required address location that you wish
to print data from by pressing the Up and Down Arrow Keys and press
the ‘Scroll/Enter’ Key. The analyzer will display ‘Wait’, ‘out’ and bars will
change position on the LCD until printing is complete.
CAL Print Mode - If Cal print mode is selected, the analyzer will display
‘Wait’ ‘out’ and bars will change position on the LCD until printing is com-
plete.
After printing is complete, ‘End’ will be displayed and ‘YES’ (or ‘no’) will
blink. Selecting ‘YES’ will return the 709R to normal operation, selecting
‘no’ will return the 709R to the print selection screen so you can print
again. Use the Up and Down Arrow Keys to make the selection and press
the Scroll/Enter Key.
Combustion and pressure/draft printouts must be performed separately.
Perform a combustion test and save the data. Perform a pressure/draft
test and save the data in a different address. Print each address sepa-
rately.

8. RECALLING DATA
The recall feature allows you to display stored data or retrieve the last date of
calibration.
Recalling Saved Data or Calibration Date
1. Press the Recall button once.
2. The display will show “Stor” and “Cal”. Use the Arrow buttons
to select the desired function. To cancel recalling information press
the Recall Key and use the Up/Down Arrow Keys to select “Yes” and
press the Scroll/Enter Key.
Stor - Selecting “Stor” allows you to display the information in a
memory location.
1. Press the Recall button once. The display will show “Stor” and
“Cal”. Using the Arrow buttons select “Stor” by making it blink.
Press the Scroll/Enter button.
2. “Addr” will be displayed and a number from 0 to 49 will
flash.
3. Using the up and down arrows, select the memory location of
the readings you want to display.
4. Press the Scroll/Enter key once. The 709R will display the date
and time screen showing when that reading was stored.
5. Use the up and down arrows to scroll through the data that
was saved.
6. Press the Scroll/Enter button and “End” will be displayed and
“Yes” will flash. Press the Scroll/Enter button if you are finished
recalling data or use the Arrow buttons to select No to recall
data from other locations.
CAL - Selecting “CAL” allows you to display the last date of cali-
bration.
1. Press the Recall button once. The display will show “Stor” and
“Cal”. Using the Arrow buttons select “Cal” by making it blink.
Press the Scroll/Enter button.
2. “CAL” will blink and the last calibration date will be displayed in
DD/MM.YYYY format.
3. Press the Scroll/Enter button, “End” will be display and YES will
blink. Press the Scroll/Enter button to return to normal opera
tion.
COMBUSTION ANALYSIS (Continued)
Condensing Boiler / Furnace
Typical Test Locations
Figure 2

COMBUSTION ANALYSIS (Continued)
Test all exhaust ports at the
top of the heat exchanger.
Atmospheric Forced Air Furnace
Typical Test Locations
Figure 3
7. SAVING DATA
During testing data can be stored for later retrieval.
When data is saved, all data previously in the address will be
overwritten.When saving pressure/draft readings, select an address different
from the one used to save combustion readings.
1. Press the Store Key.
To cancel storing information press the Store Key and use
the Up/Down Arrow Keys to select “Yes” and press the Scroll/Enter Key.
2. “Addr” and an address location from 0 to 49 will flash on the display. Use the
Up/Down Arrow Keys to select the desired location to store the data and press
the Scroll/Enter Key.
To cancel storing information press the Store Key and use
the Up/Down Arrow Keys to select “Yes” and press the Scroll/Enter Key.
3. The data is stored and “End” will display. Use the Up/Down Arrow Keys to
select “Yes” to stop storing data and return to normal operation or select “No”
to store data again. Press the Scroll/Enter Key.
You have just successfully stored a set of readings which can be reviewed on
screen (see 8) or sent to the IR printer (see 9)

6.3 Function 3: - Date/Time
Press the Func Key repeatedly to access the date/time screen. From this func-
tion Time, Date and Year can be changed.
1. Once the Time, Date, and Year screen is displayed, press the Scroll/Enter
Key once to allow you to change the data.
2. Press the Up Arrow Key to Increase the Minutes
3. Press the Down Arrow Key to Decrease the Minutes
4. Press the Scroll/Enter Key to confirm the desired Minute and move onto
the Hours
5. Repeat steps 2 to 4 to change the Hour, the Day, the Month and the Year
6. The unit will return to normal after the desired Year has been confirmed
6.4 Default Function - Combustion Analyzer
Press the Func Key repeatedly to return to Combustion Analyzer mode and
the default display (Combustion display 1)
• Combustion Display 1 (Default Start Up Display)
• Displays Carbon Monoxide (CO) reading in parts per mil-
lion (ppm)
• Displays calculated Carbon Dioxide (CO2) figure in per-
centage (%)
• Displays calculated CO/CO2 (Ratio) figure
Function 3 Display (Date / Time)
Time
Date / Month
Year
COMBUSTION ANALYSIS (Continued)
5.4 TYPICAL TEST RESULTS
Actual test results vary depending on the equip-
ment under test. TPI recommends you check with
the manufacturer of the equipment being tested to
determine specific acceptable results.
Oxygen 3% to 6%
Carbon Monoxide Less than 100ppm (air free)
Stack Temperature 300°F to 500°F
Draft -0.15 inH2O
Oxygen 4% to 7%
Carbon Monoxide Less than 100ppm (air free)
Stack Temperature 325°F to 625°F
Draft -0.15 inH2O
Power Burners (Gas Fired)
Power Burners (Oil Fired)
Oxygen 7% to 9%
Carbon Monoxide Less than 100ppm (air free)
Stack Temperature 325°F to 500°F
Draft -0.15 inH2O to -0.4 inH2O
Gas Fired Burners (Atmospheric / Fan Assist)

6. FUNCTION SELECTION
Pressing the Func Key enables access to the different functions available on
the 709R. Available functions are: Combustion Analyzer, Thermometer,
Manometer, and Date / Time display.
6.1 Function 1: - Thermometer
Press the Func Key repeatedly to access the thermometer function. In this
mode the 709R functions like a K-Type thermocouple thermometer. The
pump will stop running when in this function.
1. Ensure you have a 'K' type probe connected to one or both of the thermo-
couple sockets T1 or T2 (refer to figure below)
WARNING: - There is ONLY one correct way to connect the 'K' type thermo-
couple plug into the socket (see 4.2). Forcing the plug into the socket the
wrong way may result in damage to the instrument.
2. Touch the temperature probe to the item under test and read the displayed
temperature.
Other Features:
• Pressing the Up Arrow Key will toggle between ºC and ºF
• Pressing the Scroll/Enter Key will toggle the Differential Temperature ON
and OFF
• 'oPEn' will be displayed if no 'K' type probe is connected to the thermocou-
ple socket
The thermometer func-
tion allows you to per-
form temperature tests.
Function 1 Display (Temperature)
T1 Temperature
T2 Temperature
Differential Temperature
6.2 Function 2: - Manometer
Press the Func Key repeatedly to access the thermometer function. In this mode
the 709R functions like a differential manometer. The pump will stop running
when in this function.
1. Ensure you have Pressure Sampling Tube connected to one or both of the
Pressure Ports and there are no restriction in the tubing (see figure below)
2. Zero the display by pressing the Down Arrow Key.
3. Connect the tube(s) to the device under test and read the pressure on the dis-
play.
Other Features:
• Pressing the Up Arrow Key will scroll through mbar, kPa and inH2O
• Pressing the Down Arrow Key will Zero the Pressure reading
• Pressing the Scroll/Enter Key will toggle the ch2 temperature reading ON and
OFF
The 709R incorporates a differential manometer. This means when a single hose
is connected to the (+) port and pressure is applied, the 709R will read positive
pressure. If a single hose is connected to the (-) port and pressure is applied, the
709R will read a negative pressure. If both ports are connected to a pressure, the
709R will read the difference (P1 - P2) between the two.
The pressure function
allows you to perform draft
and pressure tests.
Function 2 Display (Pressure)
Pressure reading