IMR 1050X User Manual

Environmental Equipment

3634 Central Ave. St. Petersburg, Fl 33711 * Phone 727

Extended Life Combustion &

, Inc.

IMR * Fax 727

System Analyzer

IMR 1050X

IMR 1050X

Email: [e-mail]

www.imrusa.com

-328-2818 * 800-RING-

-328-2826

Page 1 of 21

Environmental Equipment

3634 Central Ave. St. Petersburg, Fl 33711 * Phone 727

, Inc.

IMR * Fax 727

IMR 1050X Overview

IMR 1050X

www.imrusa.com

-328-2818 * 800-RING-

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-328-2826

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Getting Started

Safety Notes

Before using this meter, read all safety information carefully.
"WARNING" is used to indicate conditions or actions that may pose physical hazards to the user.
"CAUTION" is used to indicate conditions or actions that may damage this instrument.

WARNING!

This analyzer extracts combustion gases that may be toxic in relatively low concentrations. These
gases are exhausted from the back of the instrument. This instrument must only be used in well­ventilated locations.
It must only be used by trained and competent persons after due consideration of all the potential
hazards.

P

REFLIGHT CHECKLIST

• Clean particle filter

• Water trap and probe line are empty of water

• Power on and zero

• All hose and thermocouple connections are

properly secured

• Flue gas probe is sampling ambient FRESH air

• Water trap is fitted correctly to the instrument

• Flue temperature plug is connected

• Inlet temperature probe is connected if required

IMR 1050X

• Setting Inlet Temperature

• Turn on and zero the analyzer without the

flue probe connected to use ambient
temperature

• Connect flue probe thermocouple to
T1 during zero countdown to store probe
tip temperature

Analyzer Connections

NOTE: Take care when inserting the temperature probes as the pins are polarized. Insert with the
smaller pin (+) to the right.

WARNING!

Turning the pump off while the probe is in the flue will leave toxic gases inside the analyzer. Once
data has been printed or copied it is advisable to purge the unit with fresh air as soon as possible.
Use the GAS ZERO function (1050 X only) to purge the analyzer of excess gases. To do this on a
standard unit remove the probe from the flue and turn ON the pump. Always allow the readings to
return to zero (20.9 for O2) prior to shutting the unit off. The meter will not switch off until the CO
reading is below 20 ppm.

WARNING!

The probe will be hot from flue gases. Remove the probe from the flue and allow it to cool
naturally. Do not immerse the probe in water, as this will be drawn into the analyzer and damage
the pump and sensors. Once the probe is removed from the flue and the readings have returned to
ambient levels hold down “On/Off” and switch off the analyzer. The instrument will count down
from 30 to switch off. If you pressed “On/Off“ by mistake, pressing “Send“ will return you to
normal operation.

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Post

Flight

(1) Remove the probe from the flue and allow the analyzer to purge with fresh air until readings return to zero.

- O2 to 20.9%, CO to Zero (Be careful as the probe tip will be HOT)
(2) Drain water trap
(3) Check particle filter
(4) Drain water trap by unplugging the drain plug and shake to get excess water out.
(5) Check particle filter for dirt and any other sediment and replace if necessary.

IMR 1050X

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Getting Started

Gas Zero

BASIC CO/COMBUSTION

ANALYSIS

1 2 3

1

2 3 4

1 2 3 4

5

Environmental Equipment, Inc.

IMR 1050X

Quick Start Guide

1. Turn Power on in area of fresh air and allow to count down

2. Rotate test selector to Fuel. Press UP or DOWN arrow to scroll and select desired fuel. Top line is selected
fuel

3. Connect flue probe thermocouple connector to T1, and connect flue probe to water trap as shown above.
Use optional probe with T2 for inlet temperature.

1.

Rotate test selector to Menu.

2.

Press UP Button to GAS ZERO and press ENTER.

3.

Make sure Analyzer is in fresh air and press ENTER.

4.

Analyzer will then Zero. This takes 90 seconds

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Differential

Temperature Test

HIGH RESOLUTION MANOMETER DRAFT & STATIC PRESSURE TEST

1 2 3

4 5

1

2 3 4 5

1. Insert Flue Probe in stack. Adjust the cone so the end of the probe is approximately. at the center of the
stack (4” stack adjust cone to aprox 2” from end of probe.)

2. Rotate test selector to “Flue Test” and begin testing.

3. Press and Hold the UP button to toggle between fuel test screens 1 and 2. Flue Test Pg.1: O2, CO, Draft (P)
and TF. Flue Test Pg. 2: CO2, NO, Efficiency and Excess Air. (NO1 upgrade available on 1050X. NO1 comes
standard on 1050X-NO.)

4. Make any adjustments as needed for proper combustion and wait for analyzer to display any change in the
readings. (repeat if necessary)

5. Once complete, remove probe from the stack and allow the analyzer to purge in fresh air until CO sensor
readings return to ZERO and O2 reads 20~21% (20.9%). Continue to the next test or turn off your analyzer if
finished. NOTE: print and store functions may be used at any point during testing.

IMR 1050X

1.

Rotate test selector to Temp

2.

Connect flue probe thermocouple or accessory thermocouple connector to T1. Connect accessory
thermocouple probe to T2. Compatible with any K-Type thermocouple probe or clamp.

3.

Place thermocouples in test locations to start testing.

4.

Observe T1, T2 and Differential/delta T.

5.

Press “SEND” to print results or hold “SEND” to Log.

1. Rotate test selector to Prs (Pressure)

2. Press and hold “t“ DOWN button to zero pressure sensor.

3. Connect true draft hose and probe into P1. Use P2 for Differential. Place probe tip in stack to measure draft.
Connect static pressure hose to P1 and P2 to measure differential pressure..

4. Place true draft hose and probe tip in flue to measure draft. You can also use the combustion draft probe for
measuring pressure.

5.

Press “SEND” to print results or hold “SEND” to Log.

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Printing and Storing Results

High CO

Alert

CO Room Test

Heat Exchange Test

1

2

3

1 2 3

4 5

Environmental Equipment, Inc.

Print and Log easily from the following test screens: Flue test,
Pressure/Draft/Differential, temperature and Auxiliary

1. Press “SEND” to start the printout of results from any test screen.

2. Press “SEND” again during printing to cancel.

3.

Press and hold “SEND” to log the current readings.

Printing Logged Results

IMR 1050X

At 400PPM CO the screen will display HIGH CO and the indicator light will flash and analyzer will beep several
times. Above 2000PPM Screen will display HIGH CO REMOVE PROBE, the indicator light will flash and pump will
pulse. Press SEND/ENTER to continue testing or remove probe to allow analyzer to purge.

Great for checking for ambient CO and back drafting situations.

1. No probes or hose connections required for this test. Place handset in the area to be tested. Rotate test selector to
Room CO

2. Press the PUMP button to start the test. CO readings will be logged every 2 minute for a 30 minute time span

3. To view results rotate test selector to “MENU” and select “REPORT” Scroll to “ROOM CO” and press “SEND”.

4. Press “SEND” to VIEW results.

5. Press “SEND” again to print.

There are many methods to test heat exchanger integrity. One of these is to observe the Excess Air, O2 and CO
readings both before and after the blower turns on. If the heat exchanger is sealed your O2 and CO readings should
remain fairly stable. A breach in the heat exchanger may allow fresh air to be forced into the flue after the blower

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Environmental Equipment, Inc.

AUX Setting

1 2

3 4 5

1 2 3 4

5

turns on due to a pressure increase in the plenum. The result may be a rise in the measured O2 in the stack gas and
an increase in the Excess Air. In some sealed systems the fresh air drawn in through the breach may reduce the
combustion air available leading to an increase in the CO reading. If either of these situations are present it is
probable that there is a problem with the Heat Exchanger which may require additional testing and inspection.

NOTE: Many cracks are invisible to bore scopes or the naked eye, and only open or separate from pressure or
temperature changes during operations.

1. Rotate test selector to Exch Test. Call for heat on the system. Observe and wait for O2 readings to stabilize.

2. Prior to the blower turning on, and after readings have stabilized, press the SEND button. This will store
the Pre-Blower test segment.

3. After the blower turns on press PUMP to start the Post- Blower test.

4. The meter will wait 30 seconds and then record the Post-Blower values for CO, O2 and Excess Air. Test
results will automatically be stored to exchange reports. Report includes both Pre and Post Blower test
segments.

5.

To view test results rotate test selector to “MENU” go to the “REPORT” screen and select EXCH. Select
“VIEW” and scroll to desired log. Press“SEND” to print.

IMR 1050X

Programmable Auxiliary screen allows for Tech selectable test parameters to be chosen.

1. Rotate test selector to MENU” scroll UP or DOWN to SCREEN. Press “SEND”.

2. Scroll UP or DOWN to AUX. Press “SEND”

3. Scroll UP or DOWN to select the LINE you wish to change. Press “SEND”. (LINE 1 shown)

4. Scroll UP or DOWN to select the function you wish to display. Press “SEND”. (Pressure shown)

5.

Rotate selector to “AUX” to view. Pressure is now shown in line 1 along with T1, T2 and Differential/ delta
T.

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Environmental Equipment, Inc.

Main Menu Navigation

IMR 1050X

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Environmental Equipment, Inc.

Atmospheric Gas Fired Burne

rs

Gas Fired Power Burners

Oil Fired

Burners

(#2 Oil Fuel)

Positive

Overfire Gas & Oil

Typical Excess Air Level

What Results Are Generally Acceptable

• Oxygen ....................................................................................... 7 to 9% O2

• Stack Temperature ................................................................... 325 to 500°F

• Draft (Water Column Inches) .................................................... -.02 to -.04wc”

• Carbon Monoxide (parts per million) ...................................... <100ppm

• Oxygen ....................................................................................... 3 to 6% O2

• Stack Temperature ................................................................... 275 to 500°F

• Stack Draft (Water Column Inches).......................................... -.02 to -.04wc”

• Overfire Draft (Water Column Inches)..................................... -.02wc”

• Carbon Monoxide (parts per million) ...................................... <100ppm

• Oxygen ....................................................................................... 4 to 7% O2

• Stack Temperature ................................................................... 325 to 600°F

• Stack Draft (Water Column Inches).......................................... -.04 to -.06wc”

• Overfire Draft (Water Column Inches)..................................... -.02wc”

• Carbon Monoxide (parts per million) ...................................... <100ppm

• Smoke ........................................................................................ 0 (or manufacturer’s recommendation)

IMR 1050X

• Oxygen ....................................................................................... 3 to 9% O2

• Stack Draft (Water Column Inches).......................................... -.02 to -.04wc”

• Overfire Draft (Water Column Inches)..................................... +0.4 to +0.6wc”

• Carbon Monoxide (parts per million) ...................................... <100ppm

NOTE: Follow manufacturer guidelines for the specific equipment being serviced.

O2% (measured) Excess Air %

Natural gas 3% 16.7%
Light Oil 5% 31%
Coal 8% 62%

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Environmental Equipment, Inc.

Air Conditioning/Heat Pump

Boiler & Water Heaters & High Efficiency Modulating Hot Water Systems

Furnaces: 80%

Furnaces: 90%

Furnaces (Continued): Atmospheric , Gas & Oil

IMR 1050X

Where to Test

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Environmental Equipment, Inc.

IMR 1050X

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Other Important Factors Related To Combustion

Combustion Measurement Terms

IMR 1050X

• The three T’s of combustion
– Time

• Amount of time that the fuel and oxygen are together in the combustion chamber
– Temperature

• How high the temperature is determines the rate of oxidation, or speed of the combustion
– Turbulence

• How well the fuel and air are mixed

• These three factors are all interrelated, and will move your results along the combustion curves.

Other parameters measured include net temperature, draft and efficiency.

Net Temperature

Net temperature is the difference between the combustion air entering the combustion chamber and the flue gas
temperature past the heat exchange. This is used to determine how efficient the system is extracting heat from
the combustion process in addition to the performance of the combustion process. On sealed systems that have
ducted inlet air for combustion air, the net temperature must compare this air stream temperature with the flue
gases. If the appliance simply uses room air for the combustion air, our analyzers have an internal temperature
sensor in the handset, so it will use this temperature when calculating net temperature.

The most accurate results for efficiency are obtained when measuring flue gases at the point where flue
temperature (not flame temperature) is the highest.

Draft

Draft is the difference between the ambient pressure level and the pressure level in the flue. This is created either
by the natural buoyancy of the hot gases created in combustion lifting, or by an inducer fan that assists the flow of
flue gases up the stack. Most combustion equipment will specify the amount of draft that is required for proper
operation.

Draft helps draw combustion air into the combustion chamber, and also helps in mixing the fuel and oxygen.
Without proper draft, the combustion process can spill poisonous by-products into the space where the appliance
is located. This can be a risk to those in the area, or create a danger to residents or employees working near the
combustion equipment.

Efficiency

Efficiency is a measure of how well the fuel is burned to create heat, and how well the generated heat is captured
for the intended use.
The information used to create this value is based on the fuels heating value, the heat lost up the flue and the gas
components in the flue gas. The original method to determine efficiency included many manual methods and
lookup charts. As an example you would measure the CO2 level and the stack temperature and then reference a
slide scale that would give you the relative efficiency number. IMR’s electronic combustion analyzers perform the
measurements on a continuous basis, and can calculate the efficiency as adjustments are being made. Combine
this with a printout and you are able to provide a before and after comparison of the combustion equipment in
relatively little time as part of normal servicing.

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CO Air Fee

Combustion Efficiency Calculations

Certain standards ( ANSI Z21.1) for Carbon Monoxide are stated in terms of air-free. Air-free refers to the
concentration of CO in combustion gases undiluted with flue, or other gases containing little CO. This value is
computed using an equation that takes into account the O2 concentration of the flue gas.

• If 5% O2 is measured (O2m) in the flue then the CO gas value will be recalculated as if 0% were measured.
The equation for air-free is as follows:

- COaf = CO PPM x [(20.9) / (20.9 - O2m)]

• In our example if a reading of 325 PPM were measured then the air-free value would be calculated as follows:

- COaf = 325 PPM x [(20.9) / (20.9 - 5)] COaf = 325 PPM x [(20.9) / (15.9)] COaf = 427

We may be given a limit on our gas range by the local authority, which stated that we must not emit more than
400-PPM Carbon Monoxide air-free. In the example we would be breaking the limit and corrective action should
be taken to reduce the level of CO. Air-free values prevent false readings being submitted, e.g. allowing more air
into the boiler will increase the oxygen level in the flue and dilute any toxic gas reading. Air-free referencing gives
readings as if they were undiluted.

This identifies three sources of loss associated with fuel burning:

• Losses due to flue gasses:

- Dry Flue gas loss, Moisture and hydrogen,

- Sensible heat of water vapor, Unburned gas

• Losses due to refuse:

- Combustible in ash, riddling and dust

• Other losses:

- Radiation, convection, conduction other unmeasured losses
Net efficiency calculations assume that the energy contained in the water vapor (formed as a product of
combustion and from wet fuel) is recovered and the wet loss term is zero. Gross efficiency calculations assume
that the energy contained in the water vapor is not recovered. Since the fuel air mixture is never consistent there
is the possibility of unburned/partially unburned fuel passing through the flue. This is represented by the unburned
carbon loss. Losses due to combustible matter in ashes, riddling, dust and grit, radiation, convection and
conduction are not included.

IMR 1050X

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Environmental Equipment, Inc.

Combustion Efficie

ncy Calculations

(Cont’d)

IMR 1050X

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Environmental Equipment, Inc.

General Maintenance

General Maintenance

Periodic Service

Annual

- Recalibration

Cleaning

Emptying & Cleaning the in Line Water Trap

• Calibrate your instrument annually to ensure it meets original performance specifications

• Keep your instrument dry. If it gets wet, wipe dry immediately. Liquids can degrade electronic circuits

• Whenever practical, keep the instrument away from dust and dirt that can cause premature wear

• Although your instrument is built to withstand the rigors of daily use, it can be damaged by severe
impacts. Use reasonable caution when using and storing the meter

WARNING!

Repair and service of this instrument is to be performed by qualified personnel only. Improper repair
or service could result in physical degradation of the instrument. This could alter the protection from
personal injury this meter provides to the operator. Perform only those maintenance tasks that you
are qualified to do.

IMR 1050X

While the sensor has an expected life of more than two years in normal use it is recommended that the
analyzer is re-calibrated at least annually, This is so that long-term drift on the sensor and electronics can be
eliminated. Local regulations may require more frequent re-calibration and users should check with
appropriate authorities to ensure they comply with relevant guidelines.

While the sensor has an expected life of more than two years in normal use it is recommended that the
analyzer is re-calibrated at least annually, This is so that long-term drift on the sensor and electronics
can be eliminated. Local regulations may require more frequent re-calibration and users should check
with appropriate authorities to ensure they comply with relevant guidelines.

The in-line water trap should be checked and emptied on a regular basis. Water vapor will condense in
the probe line, which may cause the water trap to fill suddenly if the probe is moved. Care should be
taken at all times.
Carefully remove the rubber plug from the
bottom of the water-trap housing. Dispose
of the condensate in a suitable drain, care
must be taken as it could be acidic. If
condensate spills onto the skin or clothing,
clean off immediately using fresh water,
seek medical advice if problems occur.
Ensure plug is replaced before performing
combustion tests. Note: O2 reading will be
high if the Water Trap Plug is not in place.

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Changing the Particle Filter

Battery Replacement

Using Re

-

Chargeable

Batteries

Battery Charging

The in-line water trap should be checked and emptied on a regular basis. Water vapor will condense in the
probe line, which may cause the water trap to fill suddenly if the probe is moved. Care should be taken
at all times.
Remove water-trap assembly from the analyzer
as shown above. Remove the filter and plastic
holder from the housing. Discard the filter
element but keep the holder to fit to the new
filter. Clean the inside of the filter housing
with a suitable soft cloth. Fit the holder onto
the new filter element and then insert into the
housing. Refit the housing onto the analyzer.

This meter has been designed for use with both
alkaline and rechargeable Nickel Metal Hydride
(NiMH) batteries. No other types are
recommended. The analyzer is supplied with 4
“AA” size alkaline batteries.

These should be installed into the instrument
as shown in the diagram to the right and
indicated on the back of the unit.

CAUTION!

Take great care when installing the batteries to
observe correct polarity. Always check the
meter for operation immediately after
installing new batteries.

IMR 1050X

The battery charger must only be used when NiMH batteries are fitted. Alkaline batteries are not
re-chargeable. Attempting to recharge alkaline batteries may result in damage to the product and may
create a fire risk.

Ensure that you use the correct charger. This unit uses a 9V DC regulated charger.
Ensure that the batteries are fitted in the correct manner, and then charge for at least 16 hours.
Subsequent charges should be overnight. NiMH batteries may be charged at any time, even for short
periods to conduct testing.

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WARNING!

Under NO circumstance should you expose batteries to extreme heat or fire as they may explode and
cause injury. Always dispose of old batteries promptly in a manner consistent with local disposal
regulations.

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Environmental Equipment, Inc.

Electromagnetic Compatibility (EMC)

This product has been tested for compliance with the following generic standards:
EN 50081-1, EN 50082-1 and is certified to be compliant.

The European Council Directive 89/336/EEC requires that electronic equipment does not generate
electromagnetic disturbances that exceed defined levels and has an adequate level of immunity to enable it to
be operated as intended.

Since there are many electrical products in use that pre-date this Directive and may emit electromagnetic
radiation in excess of the standards defined in the Directive there may be occasions where it would be
appropriate to check the analyzer prior to use. The following procedure should be adopted.

• Go through the normal start up sequence in the location where the equipment is to be used

• Switch on all localized electrical equipment that might be capable of causing interference

• Check that all readings are as expected (a level of disturbance in the readings is acceptable)

• If not, adjust the position of the instrument to minimize interference or switch off, if possible, the
offending equipment for the duration of the test

At the time of writing this manual (July 2009) IMR is not aware of any field based situation where such
interference has ever occurred and this advice is only given to satisfy the requirements of the Directive.

IMR 1050X

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Environmental Equipment, Inc.

IMR 1050X

Specifications

-

1

-

2

-

3

-4

IMR 1050X

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Environmental Equipment, Inc.

Warranty

IMR 1050X

IMR® Environmental Equipment, Inc., 3634 Central Ave., St. Petersburg, FL, 33711, USA states the
following:

IMR®‚ as manufacturer hereby grants the following worldwide IMR® warranty for an IMR® analyzer
purchased from an authorized dealer.

1. The IMR® warranty shall entitle every IMR® customer to demand a free replacement or repair of the
defective parts from any IMR® dealer authorized for the respective IMR® unit.

2. The IMR® warranty shall be granted on the factory new unit and shall commence on the date of the
delivery of the original IMR® unit to the customer. It shall last for a period of twelve months regardless
of the type and the intensity of use and regardless of any change of owner, which may occur during this
warranty period.

3. The IMR® warranty shall refer to absence of faults with respect to the state of the art nature of the
sold unit in terms of material and finish. The warranty for all parts fitted during the twelve-month
warranty period shall end with the unit warranty.

4. After the establishment of a material or production fault by IMR® or the authorized IMR® dealer, the
faults will be eliminated by means of free repair or replacement. Replaced parts shall become the
property of IMR®.

5. No warranty claims may be made for maintenance and setting work, cleaning or other utility
materials required for the function of the unit and other wear parts unless they have a direct bearing on
work performed under the warranty.

6. The terms and conditions for the acknowledgement of this warranty shall be the presentation of the
fully completed warranty card, which must contain the confirmation from the authorized IMR® dealer
on its delivery and, if applicable, the prescribed maintenance work.

7.The IMR® warranty shall only be applicable if

a. The analyzer has been maintained in accordance with the instructions issued by the
manufacturers and the operating instructions by an authorized IMR® dealer.
b. Only original IMR® spare parts have been used for any repairs.
c. The unit has been used properly, the operating instructions observed and the unit has not
been used for a purpose other than the one for which it has been designed.

d. The IMR® unit has been left in its original design and meets the original IMR® specifications.

e. The fault is not due to external influences or use for a purpose other than the one for which it
has been designed.
f. Exclusively authorized IMR® dealers have made repairs to the IMR® unit. g. The IMR® unit has
been sent to an authorized IMR® dealer immediately after the fault was discovered.

8. Warranty time for the analyzer is 12 months, including sensors.

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Environmental Equipment, Inc.

Company Information

IMR® Environmental Equipment, Inc.
3634 Central Ave. Saint Petersburg, FL 33711 USA
Toll free: 800-746-4467
Phone: [phone]
Fax: [phone]

Internet: www.imrusa.com
Email: [e-mail]
[e-mail]
[e-mail]

IMR 1050X

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