Bacharach Fyrite Classic Owner's Manual

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INSTRUCTION 0011-9026

%CO

FYRITE

Operation/Maintenance

Rev. 12 – December 2012

Gas Analyzer

and O2 Indicators

Printed in U.S.A.

Instruction 0011-9026 Page 1

® Registered Trademarks

Page 2

WARRANTY

Bacharach, Inc. warrants to Buyer that at the time of delivery this Product will be free from defects in mater ial and manufac ture and will conform substan tially to Bacharach Inc.’s ap plicable speciﬁ cations. Bacharach’s liability and Buyer’s remedy under this warranty are limited to the repair or replacement, at Bacharach’s option, of this Product or parts thereof returned to Seller at the factory of manufac ture and shown to Bacharach Inc.’s reasonable satisfaction to have been defective; provided that written notice of the defect shall have been given by Buyer to Bacharach Inc. within one (1) year after the date of delivery of this Product by Bacharach, Inc.

Bacharach, Inc. warrants to Buyer that it will convey good title to this Product. Bacharach’s liability and Buyer’s remedy under this warranty of title are limited to the removal of any title defects or, at the election of Bachara ch, to the replacement of this Product or parts thereof that are defective in title.

The warranty set forth in paragraph 1 does not apply to parts the Operating Instructions designate as having a limited shelf-life or as being expended in normal use.

THE FOREGOING WARRANTIES ARE EXCLUSIVE AND ARE GIVEN AND ACCEPTED IN LIEU OF (I) ANY AND ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED WARANTIES OF MERCHAN TABILITY AND FITNESS FOR A PARTICULAR PURPOSE: AND (II) ANY OBLIGA TION, LIABILITY, RIGHT, CLAIM OR REMEDY IN CONTACT OR TORT, WHETHER OR NOT ARISING FROM BACH A RACH’S NEGLIGENCE, ACTUAL OR IMPLIED. The remedies of the Buyer shall be limited to those provided herein to the exclusion of any and all other remedies includ ing, without limita tion incidental or consequen tial damages. No agree ment varying or extending the foregoing warranties, remedies or this limitation will be binding upon Bacharach, Inc. unless in writing, signed by a duly authorized ofﬁ cer of Bacharach.

NOTE: Gaskets are considered consum able items and are excluded from the terms of this warranty.

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CAUTION

Corrosive ﬂ uid is contained inside this unit. These instructions should be thoroughly read before operation is attempted.

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FYRITE SAFETY PRECAUTIONS

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The operator (s) of this instrument should thoroughly familiarize themselves with the applicable safety precautions before handling or using the FYRITE for gas analysis.

Review Figures 1a,1b, 1c and 1d on this page. Make certain to follow the steps outlined below and read the ﬂ uid handling precautions for your personal safety.

1) Always use protective equipment such as safety goggles, gloves, and protective clothing as illustrated in Figure 1a.

2) Read the instruction manual thoroughly. When ﬁ lling the FYRITE with the appli- cable ﬂ uid charge, use safety equipment and perform the operation in the vicinity of running tap water (Figure 1b).

3) The FYRITE ﬂ uid should always be in the bottom reservoir before and during sample introduction to the FYRITE. When venting the FYRITE to atmosphere, hold the instrument in the vertical position and at a location away from your face (Figure 1c).

4) NEVER vent FYRITE in the inverted position (with the plunger facing downward). This will cause ﬂ uid to spill, which is corrosive and contains harmful ele- ments (Figure 1d).

NOTE: In the event of ﬂ uid spill - refer to Section 2.2 (FYRITE Handling

Precautions). For Maintenance - refer to Section 6.0.

Figure 1a. Protective equipment required before attempting gas analysis.

Figure 1c. Venting FYRITE to atomsphere at 45° angle.

Figure 1b. Preparing to ﬁ ll FY- RITE using recommended protective safety equipment.

Figure 1d. NEVER vent FYRITE in the inverted position, which will cause ﬂ uid to spill.

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TABLE OF CONTENTS

1.0 DESCRIPTION................................................................................................................................................1

2.0 FYRITE INSPECTION BEFORE AND DURING TEST ..............................................................................1

2.1 Pre-Operational Check .......................................................................................................................1

2.2 FYRITE FLUID HANDLING PRECAUTIONS ...............................................................................2

3.0 BASIC FYRITE OPERATION PERCENT CO

3.1 Determining CO2 and O2 FYRITE Fluid Strength .............................................................................7

AND 02 ...............................................................................3

3.2 Operating Precautions to Ensure Maximum Accuracy ......................................................................7

3.2.1 Draining Fluid Droplets .....................................................................................................8

3.3 FYRITE Temperature .........................................................................................................................8

3.3.1 Temperature of Gas Sample ...............................................................................................8

4.0 PRINCIPLE OF OPERATION ........................................................................................................................9

5.0 APPLICATION INFORMATION .................................................................................................................10

5.1 FYRITE Absorbing Fluid .................................................................................................................10

5.1.1 FYRITE Reﬁ ll Fluid (Storage Life, etc.) .........................................................................10

5.2 FYRITE Operating Temperature Range ...........................................................................................11

5.3 Typical FYRITE Applications ..........................................................................................................11

5.4 CO2 FYRITE Only Combustion Testing ..........................................................................................12

5.4.1 Percent CO2 Shows Volume of Excess Air ......................................................................12

5.4.2 Too Much Excess Air Means Inefﬁ cient Combustion .....................................................13

5.4.3 What is Proper CO2 Value? ..............................................................................................13

5.4.4 How To Calculate Combustion Efﬁ ciency .......................................................................13

5.5 O2 FYRITE Only Combustion Testing .............................................................................................13

5.5.1 Percent O2 Shows Volume of Excess Combustion Air ....................................................13

5.5.2 Too Much Excess Air Means Inefﬁ cient Combustion .....................................................13

5.5.3 What is Proper O2 Value? .................................................................................................14

5.5.4 Measuring O2 in Addition to CO2 ...................................................................................14

5.5.5 Where is Percent CO2 or O2 Measured? ..........................................................................14

5.6 Background Gases Affecting FYRITE Readings .............................................................................16

5.7 General FYRITE Applications .........................................................................................................17

5.8 Altitude Correction Table .................................................................................................................18

6.0 FYRITE MAINTENANCE ..........................................................................................................................18

6.1 Increasing FYRITE Fluid To Proper Level ......................................................................................18

6.1.1 Decreasing FYRITE Fluid to Proper Level .....................................................................19

6.2 Checking FYRITE Fluid Strength ....................................................................................................19

6.2.1 CO2 FYRITE Fluid Only .................................................................................................19

6.2.2 O2 FYRITE Fluid Only ....................................................................................................21

6.3 Replacing FYRITE Fluid ................................................................................................................21

6.4 Inspection of FYRITE for Fluid Leakage ........................................................................................22

6.5 Cleaning FYRITE .............................................................................................................................24

6.6 Replacing FYRITE Plastic and Rubber Parts ...................................................................................24

6.7 Aspirator Bulb - Sampling Assembly ...............................................................................................26

6.8 Storing FYRITE and Reﬁ ll Fluid .....................................................................................................26

6.9 Replacing Saturator Filter Packing Part #11-0121 ..........................................................................26

7.0 ILLUSTRATED PARTS LIST FYRITE CO2/O2 ..........................................................................................29

7.1 FYRITE Illustrated Parts ..................................................................................................................30

7.2 FYRITE Sampling Assemblies ........................................................................................................31

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INSTRUCTIONS 0011-9026

OPERATION/MAINTENANCE

BACHARACH FYRITE MODELS

CO2 and O2 INDICATORS

1.0 DESCRIPTION (Refer to Figure 1)

The FYRITE employs the well-known “Orsat” method of volumetric analysis involving chemical absorption of a sample gas, such as carbon dioxide or oxygen. The reagent used to absorb carbon dioxide (CO chloride (blue) is the absorbent for oxygen (O that the absorbing ﬂ uid is also used as the indicating ﬂ uid so that one vessel takes the place of both measuring burette and absorption pipette.

The body of the FYRITE is molded of clear high-strength plastic, comprises top and bottom reservoirs and a center tube connecting the two reservoirs. The bottom of the lower reservoir is sealed off by a synthetic rubber diaphragm that rests on a perforated metal plate. The upper reservoir is covered by a molded plastic cap that contains a double -seated plunger valve. A spring holds this valve against a carefully ﬁ nished seat in the top cap providing a perfect seal which makes the instrument spill-proof in any position. When the valve is partially depressed, the entire instrument is open to the atmosphere and the instrument is, of course, is no longer spill-proof.

The bottom reservoir is ﬁ lled with the absorbing ﬂ uid, which extends about 1/4 inch into the bore of the center tube when the instrument is held upright. The scale position, mounted to one side of the center tube, is adjustable.

) is potassium hydroxide (dyed red), and chromous

). The unique feature of the FYRITE is

2.0 FYRITE INSPECTION BEFORE AND DURING TEST

CAUTION

Corrosive ﬂ uid is contained inside unit, instructions should be thoroughly read before operation is attempted.

2.1 Pre-Operational Check

To ensure proper FYRITE operation and reliable results, check the following:

(a) With FYRITE vented and in a vertical position, it should be possible to adjust

scale zero to the top of the ﬂ uid column. Refer to FYRITE Operation for proper setup (Section 3.0 Steps 1 through 5). If this is not possible, add or remove a small amount of ﬂ uid per Section 6.1.

Instruction 0011-9026 Page 1

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(b) FYRITE Fluid Strength

To check ﬂ uid strength.

NOTE: When repeating procedures as outlined in Section 3.0 Steps 7 through 9 (absorbing and reading percent O sorbing and reading percent CO2) and before venting FYRITE

and ab-

to atmosphere for next sample, if the reading increases by more than 1/2 percent for either CO

or O2, replace the ﬂ uid.

It is often desirable to check ﬂ uid strength before taking the FYRITE to a location where it will be used. It can be tested on sample atmospheric air (which contains

20.9% O

mum accuracy. (See Section 6.9)

samples containing 10% O

proximately 350 samples containing 10% CO

). Be certain to wet Filter Saturator when checking atmospheric air for maxi-

(Oxygen) Fluid - Fresh FYRITE ﬂ uid will absorb all O2 from approxi mately 100

(Carbon Dioxide) Fluid - Fresh FYRITE Fluid will absorb all CO2 from ap-

free) operation as outlined in Section 6.7 before pro ceeding with test.

(d) Make certain wool in Filter Saturator Tube is moistened with water if using

either O is not fully saturated with water vapor. Examples where ﬁ lter-saturator must

or CO2 FYRITE in a noncombustible application where the gas sample

be wetted include measuring CO2 or O2 in ambient air or from compressed gas samples. Refer to Section 6.9 when replacing or moistening saturator (wool) ﬁ lter is required.

FYRITE OPERATION PRECAUTION: To prevent ﬂ uid spill, never depress Plunger Valve to vent FYRITE when unit is in the inverted or any other non-upright position. When depressing Plunger Valve in the upright position to vent FYRITE, hold at a slight angle away from the operator’s face.

2.2 FYRITE FLUID HANDLING PRECAUTIONS

CAUTION

FYRITE ﬂ uids used in the CO and contain poisonous elements which must not be taken internally. In the event of a spill or accidental body contact with FYRITE ﬂ uid, read the following carefully.

Instruction 0011-9026Page 2

and O2 analyzers are corrosive

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HAZARDS

Corrosive liquid causes burns. May cause blindness if splashed in eyes. Vapors are irritating and may be harmful.

PRECAUTIONS

Prevent contact with eyes, skin and clothing. Wear eye protection and gloves. Do not vent instrument until ﬂ uid has drained from top well. Do not vent instrument (FY- RITE) in inverted position.

FIRST AID

For contact with eyes: Immediately ﬂ ush eyes with water 20 minutes. Get immediate medical attention.

For contact with skin: Immediately ﬂ ush skin with water 20 minutes. Get immediate medical attention.

For inhalation overexposure: If irritation develops, move victim to fresh air.

For swallowing: Do not induce vomiting. Give two glasses of water or milk if conscious and not convulsing. Get immediate medical attention.

Refer to the material safety data sheet for further information.

3.0 BASIC FYRITE OPERATION PERCENT CO2 AND 0

Four basic steps are required when making an analysis, many being common to both the CO

FYRITE MODEL CO (Red Fluid) (Blue Fluid)

and O2 FYRITE.

FYRITE MODEL O

(a) Vent and adjust scale zero. (a) Vent and adjust scale zero.

(b) Pump sample into FYRITE. (b) Pump sample into FYRITE.

(d) Read % CO2 on scale. (d) Read % O2 on scale.

NOTE: To prevent warming of FYRITE ﬂ uid during analysis, hold FYRITE by the ﬁ ns only.

Instruction 0011-9026 Page 3

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CO2 FYRITE OPERATION O2 FYRITE OPERATION (RED FLUID) (BLUE FLUID)

1. Hold upright (Fig. 1) and

away from face. Depress Plunger Valve (momentarily) to vent FYRITE, and release.

2. Invert FYRITE (Fig. 2).

Hold at slight angle to drain ﬂ uid into top reser- voir.

3. Turn upright. Hold FY-

RITE at 45° angle (Fig. 3) momentarily to allow ﬂ uid droplet drainage into bottom reservoir.

Figure 1

Figure 2

1. Hold upright (Fig. 1) and away from face. Depress Plunger Valve (momentarily) to vent FYRITE, and release.

2. Invert FYRITE (Fig. 2) to absorb O RITE whenever Plunger

drawn into FY-

Valve is depressed). Hold at slight angle to drain ﬂ uid into top reservoir.

3. Turn upright. Hold FYRITE at 45° angle to drain ﬂ uid into bottom reservoir. Turn upright. Repeat sequence of Steps 1, 2, and 3 twice until ﬂ uid level does not drop more that 1/2% when Plunger Valve is depressed. Turn upright. Hold FYRITE at 45° angle (Fig. 3) momentarily until excess ﬂ uid droplets have been drained from inside surfaces.

4. Hold FYRITE in upright (Fig. 4) position and away from face. Depress Plunger Valve (momentarily) and release.

Instruction 0011-9026Page 4

Figure 3

4. Hold FYRITE in upright (Fig. 4) position and away from face. Note ﬂ uid level in column. Depress Plunger Valve (momentarily), and release.

Figure 4

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CO2 FYRITE OPERATION O2 FYRITE OPERATION (RED FLUID) (BLUE FLUID)

5. Holding FYRITE upright (Fig. 5), loosen locknut at rear of scale. Slide scale (Fig. 5a) until top of ﬂ uid column lines up with zero line on scale (Fig. 5b). Tighten scale locknut.

NOTE: When setting

scale zero, hold FYRITE vertically as shown and level with eyes while sighting across scale to top of ﬂ uid column.

6. To pump gas sample into FYRITE (Fig. 6), insert open end of metal sampling tube into area bearing gas for analysis. Hold FYRITE in upright position and place sampling assembly rubber connector tip over the Plunger Valve.

Depress Plunger Valve

ﬁ rmly with connector tip.

Figure 5

Figure 5a

Figure 5b

5. Holding FYRITE upright (Fig. 5), loosen locknut at rear of scale. Slide scale (Fig. 5a) until top of ﬂ uid column lines up with zero line on scale (Fig. 5b). Tighten scale locknut.

NOTE: When setting

scale zero, hold FYRITE vertically as shown and level with eyes while sighting across scale to top of ﬂ uid column.

Depress Plunger Valve

ﬁ rmly with connector tip.

Pump sample by squeez-

ing and releasing aspirator bulb 18 times. During 18th bulb squeeze (with bulb held deﬂ ated) release connector tip and Plunger Valve.

Pump sample by squeez-

ing and releasing aspirator bulb 18 times. During 18th bulb squeeze (with bulb held deﬂ ated) release connector tip and Plunger Valve.

Figure 6

Instruction 0011-9026 Page 5

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FYRITE OPERATION O2 FYRITE OPERATION

(RED FLUID) (BLUE FLUID)

7. Absorb sample gas into FYRITE by inverting until ﬂ uid drains into top reservoir (Fig. 7). Then turn upright (Fig. 8) to drain ﬂ uid into bottom reservoir. Repeat this step once.

8. Hold FYRITE at 45° angle (Fig. 9) momentarily to allow ﬂ uid droplets to drain into the bottom reservoir.

9. With FYRITE held upright (Fig. 10), permit ﬂ uid in column to stabilize a few seconds, then immediately read % carbon dioxide on scale at the point corresponding to top of the ﬂ uid column.

7. Absorb sample gas into FYRITE by inverting until ﬂ uid drains into top reservoir (Fig. 7). Then turn upright (Fig. 8) to drain ﬂ uid into bottom reservoir. Repeat this step three (3) more times (four complete inversions total).

Figure 7

8. Hold FYRITE at 45° angle (Fig. 9) momentarily to allow ﬂ uid droplets to drain into the bottom reservoir.

Figure 8

9. With FYRITE held upright (Fig. 10), permit ﬂ uid in column to stabilize a few seconds, then immediately read % oxygen on scale at the point corresponding to top of the ﬂ uid column.

Instruction 0011-9026Page 6

Figure 9

Figure 10

Page 11

10. This step completes CO2 or O2 FYRITE gas sample analysis. A few points to remember when reading the FYRITE: (a) FYRITE accuracy is within ±1/2% CO2 or O2 compared to actual value.

(b) Always handle FYRITE by ﬁ ns to ensure body heat is not absorbed by ﬂ uid.

slightly but longer delays may cause substantial error.

(d) The FYRITE is calibrated to indicate on a “dry” basis for ﬂ ue gas samples,

which are normally fully saturated with moisture. Failure to artiﬁ cially moisten wool packing in Filter Saturator Tube when actual sample is not fully saturated will cause FYRITE to read slightly low.

Therefore, make certain wool packing in Filter Saturator Tube is sufﬁ ciently

moistened with water for accurate results on non-ﬂ ue gases. Avoid excessive moisture which can be drawn into the Aspirator Bulb and forced into the FYRITE during sampling.

CAUTION

Never depress plunger valve to vent FYRITE in the inverted position. This will cause ﬂ uid to spill, which is corrosive and contains poisonous elements. In the event of a spill, read Instructions in Section 2.2 FYRITE ﬂ uid handling precautions.

3.1 Determining CO2 and O2 FYRITE Fluid Strength

FYRITE Fluid strength can be conveniently checked immediately after the ﬁ rst sample reading. Without venting, repeat the absorbing operations (Steps 7 through

9) by inverting FYRITE again and positioning upright until all ﬂ uid drains to the bot-

tom reservoir. Observe scale reading. An increase of more than 1/2% CO second reading as compared to the ﬁ rst indicates a need for ﬂ uid replacement.

or O2 in the

3.2 Operating Precautions to Ensure Maximum Accuracy

Locate top of ﬂ uid column (refer to Fig. 11). The surface at the top of the ﬂ uid column (meniscus) in the small, center bore will be dish-shaped as shown in Figure 11. Either the high or low point of this dish- shaped surface may be used to locate top of ﬂ uid col- umn providing the same point is always used both for setting scale zero and reading percent CO other will cause an error.

Best practice is to use high point of this ﬂ uid surface just at the small center bore wall. In setting scale zero or reading percent CO level with eyes and sight across scale to top of ﬂ uid column.

Instruction 0011-9026 Page 7

or O2. Obviously, using high point for one operation and low point for the

or 02, hold FYRITE vertically and

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3.2.1 Draining Fluid Droplets

%CO2

For maximum accuracy, it is important to form the habit of follow ing a standard procedure in this operation and to use the same procedure both before adjusting scale zero and before reading percent CO

or O2 .

3.3 FYRITE Temperature

The FYRITE temperature should be at or close to the temperature of the working environment where the analysis is being made and should not be subject to sudden temperature changes. If FYRITE is carried from cooler to warmer location or vice versa, expose FYRITE to new temperature condition to permit uniform temperature stabilization. Usually 15 or 20 minutes will sufﬁ ce, except when extreme temperature variations are involved. Temperature stabilization can also be accelerated by inverting FYRITE frequently.

3.3.1 Temperature of Gas Sample

The gas sample as it enters FYRITE should be cooled (or warmed if sampling cool gases) to same (ambient) temperature as the FYRITE.

Capacity of Standard Aspirator Bulb and Sampling Assembly (Part # 11-7029) to cool the gas sample is sufﬁ cient if the temperature of gas being sampled does not exceed 850°F (454°C), even where a large number of consecutive samples are required if there is an interval of not less than 5 minutes between samples.

FYRITE indicators operate over a wide temperature range. They may be exposed to ambient temperatures from –30° to 150°F (–34° to 66° C). Gases up to 850° F (454° C)

may be tested with Standard Aspirator Sampling Assembly (11-7029).

Instruction 0011-9026Page 8

Top of Fluid Column

Figure 11. Locating Top of Fluid Column.

Page 13

4.0 PRINCIPLE OF OPERATION

(Refer to Figures 12, 13, and 14)

Figure 12. When plunger valve is depressed, a gas sample is pumped through top reservoir with center bore is sealed off.

Figure 14. Absorption of gas sample by ﬂ uid cre- ates suction, which causes diaphragm to ﬂ ex up and ﬂ uid to rise in center bore to replace gas absorbed.

Figure 13. When plunger valve is released, the gas sample is locked into FYRITE and the top reservoir is opened to center bore so that gas sample can pass through absorbing ﬂ uid.

Instruction 0011-9026 Page 9

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To make a test with the FYRITE, the metal Sampling Tube at one end of Sampling Assembly Hose is inserted into the gas to be analyzed. The rubber Connector Plug at the other end of the Rubber Hose is then ﬁ rmly pressed down on the spring-loaded Valve of the instrument (See Figure 12). This simultaneously opens a passage into the Top Reservoir and seals off the center bore.

Next, a sample of the gas is pumped into the Top Reservoir by squeezing the rubber Aspirator Bulb. At least 18 bulb squeezes are required to assure that the rubber Sampling Hose and the Top Reservoir of the FYRITE are thoroughly purged of the previously analyzed sample. During the 18th Aspirator Bulb squeeze and immediately before releasing Bulb, the ﬁ nger is lifted from the Connector Plug, which automati- cally returns the Plunger Valve to upper position against its top seat.

Refer to Figure 13. With the Valve in this position, the ﬁ nal 60 cc of the gas sample is locked into the FYRITE and the Top Reservoir is opened to the center bore so that the gas sample can pass to the absorbing ﬂ uid. The FYRITE is then inverted, forcing the gas sample to bubble through the absorbing solution which absorbs either CO depending on the type FYRITE in use.

or O2

Refer to Figure 14. The instrument is then turned and held upright. Absorption of the

or O2 by the absorbing ﬂ uid creates a suction, which causes the Diaphragm at the

bottom to ﬂ ex upward permitting the level of the absorbing ﬂ uid to rise in the center tube an amount proportional to the gas absorbed. The scale indication corresponding to the top of the ﬂ uid column is then read as a percentage of gas absorbed by the FYRITE ﬂ uid.

5.0 APPLICATION INFORMATION

FYRITE Analyzers are available for either Carbon Dioxide or Oxygen analysis, and each of these models is made in the three scale ranges shown in Section 5.3. All six instruments are similar in appearance and size, but they differ in important construction details, as well as in absorbing ﬂ uids.

5.1 FYRITE Absorbing Fluid

FYRITE absorbing ﬂ uid is selective in the chemical absorption of carbon dioxide or ox- ygen respectively. Therefore, the FYRITE’s accuracy is well within the range required for industrial and professional applications, and does not depend upon complicated sequential test procedures. Further more, the FYRITE readings are unaffected by the presence of most back ground gases in the sample.

The appearance of a dark red ﬂ uid ﬂ oating on top of CO normal. The darker ﬂ uid consists of a small amount of material added to prevent excessive foaming at the meniscus and improves readability.

5.1.1 FYRITE Reﬁ ll Fluid (Storage Life, etc.)

FYRITE reﬁ ll bottles should be stored at room temperature (70° F [21° C]) in the car- ton provided, and placed in use within one year.

NOTE: Before opening reﬁ ll bottle, read the label and make certain to observe all precautions.

Instruction 0011-9026Page 10

FYRITE solu tion is entirely

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FYRITE CO2 reﬁ ll ﬂ uid may develop a white insoluble precipitate upon aging. The precipitate does not affect ﬂ uid performance in any way, but if present, should be ﬁ ltered out to prevent adherence to internal surfaces of the FYRITE.

To ﬁ lter, place a clean piece of thin cloth or netting loosely over the open CO and slowly pour reﬁ ll contents into top reservoir. Before disposing of cloth, rinse thor-

FYRITE

oughly with water. FYRITE ﬂ uid is corrosive!

FYRITE O

can be prevented by purging the FYRITE body with Nitrogen, natural gas or other

reﬁ ll ﬂ uid reacts very rapidly with oxygen in air. Oxidation of absorbent

oxygen-free gas, just before ﬁ lling, and by maintaining a stream of this gas around mouth of the bottle (see Figure 21) while its contents are emptied into the FYRITE.

Another method for reﬁ lling the O absorbent) is to invert the unit and place it over the 60 cc bottle of ﬂ uid. Then invert both so that the FYRITE is now upright and the O Figure 21a). Immediately install plastic Top Cap Ring without delay. This method

FYRITE (and still limiting the oxidation of the

ﬂ uid is ﬁ lling the instrument (see

helps to minimize oxidation and improve the life of the ﬂ uid.

5.2 FYRITE Operating Temperature Range

The FYRITE indicators operate over a wide temperature range, and may be exposed to ambient temperatures from –30° to 150° F. (–34° to 66°C). Gases up to 850° F (454° C) may be tested with standard aspirator sampling equipment (11-7029).

NOTE: Remember, for most accurate results, the FYRITE must be at temperature equilibrium with its sur roundings (ambient temperature) and the incoming gas sample at the same temperature as the FYRITE.

5.3 Typical FYRITE Applications

Listed below are six models of FYRITE Indicators and two Aspirator Sampling Assemblies with part numbers identifying their application.

Bacharach Part Numbers

For Testing

Carbon Dioxide

Scale Range

FYRITE

Aspirator Sampling Assy.

Fluid Complete Kit

with Case

0 - 7.6% 11-7042 11-7029 10-5100 10-5053

0 - 20% 11-7032 11-7029 10-5057 10-5000

0 - 60% 11-7034 11-7029 10-5057 10-5032

Oxygen

0 - 21% 11-7036 11-7029 10-5060 10-5011

0 - 60% 11-7038 11-7029 10-5060 10-5046

TYPICAL APPLICATIONS WITH FULL SIZE

SECTIONS OF FYRITE SCALES

Instruction 0011-9026 Page 11

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0-7.6% CO2 or O

CO2 tests of controlled atmospheres in fruit, vegetable, and meat storage rooms. Oxygen determination in ﬂ ammable gases. Oxygen tests to check atmospheres made inert with nitrogen (silos, fuel tanks, etc.)

0-20% CO

or 0-21% O

Flue gas combustion tests, oxygen deﬁ ciency tests, and CO Checking oxygen concentrations in hydrogen-cooled

tests of heat treating atmospheres.

generators and oil-sealed inert-gas transformers.

0-60% CO

Checking CO barges carrying gasoline and other com bustibles. CO

plant digesters. Oxygen tests in connection with

or O2

in inert gas blankets in tankers and

tests on lime kilns. Checking CO2 in sewage

oxygen and gas anesthesiology.

5.4 CO2 FYRITE Only Combustion Testing

5.4.1 Percent CO2 Shows Volume of Excess Air (Refer to Figure 15)

For any given fuel, theoretical maximum percent CO duced when exactly enough air (but no excess air whatsoever) is supplied to burn all of the fuel. As increasing amounts of excess air are supplied, percentage CO decreases from theoretical Ultimate CO

due to the diluting effect of excess air.

(Ultimate CO2 ) would be pro-

naturally

Thus, measuring percent CO enough is supplied to permit clean combustion without adding so much that combus-

is also a method of indicating excess air to ensure that

tion efﬁ ciency is unnecessarily decreased.

5.4.2 Too Much Excess Air Means Inefﬁ cient Combustion

Instruction 0011-9026Page 12

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Excess combustion air is heated and carries some of this heat to the ﬂ ue where it is wasted. The FYRITE CO mum (maximum CO

Analyzer is used to adjust combustion excess air to a mini-

), which will permit clean efﬁ cient combustion.

Calculation of combustion efﬁ ciency is possible (assuming com plete combustion) if percentage of CO2 and net temperature of combustion products are known.

5.4.3 What is Proper CO

Proper CO margin for variations in fuel, draft, atmospheric con ditions, and mechanical wear.

is that which will ensure complete, clean combustion with some safety

Value?

Consult manufacturer of heating equipment for speciﬁ c recommendations. Generally accepted values for good combustion practice in residential furnaces and boilers when ﬁ ring the following fuels are:

Natural Gas ......8 to 9.5% CO

No.2 Oil ............10 to 12.5% CO

These are only guidelines, however, and in all cases recommendations of the equipment or fuel supplier would also include recommendations for allowable smoke (oil ﬁ ring) or combustibles (gas ﬁ ring), which are undesirable combustion by-products. Testing for smoke, CO, or combustibles is important since in extreme fuel rich ﬁ ring, high CO

values also occur (see Figure 16).

5.4.4 How To Calculate Combustion Efﬁ ciency

Measure percent CO with a suitable thermometer (e.g., TEMPOINT) at the same sampling point. Deduct

in ﬂ ue gases with FYRITE. Then measure ﬂ ue gas temperature

temperature of basement or combustion air supplied from measured ﬂ ue gas tem- perature to obtain net ﬂ ue gas temperature. Use a Bacharach FIRE EFFICIENCY FINDER to calculate combustion efﬁ ciency. Instructions for using the FIRE EFFI- CIENCY FINDER are printed on the face of this slide rule calculator.

5.5 O2 FYRITE Only Combustion Testing

5.5.1 Percent O2 Shows Volume of Excess Combustion Air (Refer to Fig. 15)

All fuels require some excess air (in addition to air theoretically re quired to burn the fuel) to ensure clean, complete combustion. As the amount of this excess air increases, the percentage of O

5.5.2 Too Much Excess Air Means Inefﬁ cient Combustion

Excess combustion air is heated and carries some of this heat to the ﬂ ue where it is wasted. The FYRITE O excess air (minimum O

5.5.3 What is Proper O2 Value?

Instruction 0011-9026 Page 13

in combustion products increase.

analyzer is used when adjusting combustion air to minimum

) which will permit clean, efﬁ cient combustion.

Page 18

Proper O2 content for any fuel ﬁ red is the lowest O2 value that will ensure complete, clean combustion with adequate safety margin for variations in fuel, draft, atmospheric conditions, and mechanical wear. Consult manufacturer of heating equipment or local authorities for speciﬁ c recommendations. Figure 15 illustrates the relationship between CO

, excess air and oxygen for gas and oil.

For guidance, it should be added that modern boilers are capable of 80% or greater combustion efﬁ ciency. Rough guidelines for setting conventional power burners are 10-15% excess air for natural gas and 15-20% excess air for oil, with little or no smoke and carbon monoxide formation.

5.5.4 Measuring O

in Addition to CO

Figure 16 illustrates why it is good practice to measure oxygen, in addition to carbon dioxide, when ﬁ ring gaseous fuels. Note that the same CO on both sides of the stoichiometric (or perfect) mixture. Carbon dioxide alone cannot

reading can be obtained

deﬁ ne proper excess air operation for gaseous fuels.

A check must also be made for the presence of oxygen, which conﬁ rms operation with excess air. Gaseous fuels should also be checked for presence of carbon monoxide (CO) in the ﬂ ue gases and adjusted for either “no CO” or to conform to applicable safety regulations.

5.5.5 Where is Percent CO

For residential and most commercial and industrial combustion units, percent CO

is measured by analyzing gas sample obtained through a 1/4-inch diameter hole lo-

cated between the ﬂ ue outlet (breeching) and any mechanical opening in the ﬂ ue such

or O2 Measured? (Refer to Figure 17)

as the barometric draft regulator or draft diverter. Best practice is to locate sampling hole at least six inches upstream from such ﬂ ue openings. The metal FYRITE Sam- pling Tube should extend at least 2-1/2 inches into the ﬂ ue gases.

For larger installations, consult manufacturer of combustion equip ment for special instructions regarding sampling point, special sampling tube required, or advice on averaging readings.

Residential gas furnaces with built-in draft diverter (gas designed) will require the FYRITE metal Sampling Tube to be inserted as illustrated in Figure 17 to avoid dilution of ﬂ ue gas sample.

Additional information on residential furnace combustion testing may be obtained from the following Bacharach publication:

Bulletin 4097 - Technical Combustion Brochure

5.6 Background Gases Affecting FYRITE Readings

Instruction 0011-9026Page 14

Page 19

PERCENT EXCESS AIR

Figure 15. Relation between Oxygen, CO2 and excess

air in ﬂ ue gases for Natural Gas and Fuel Oil.

THEORETICAL EXCESS AIR CURVE

STOICHIOMETRIC MIX

Figure 16. CO

combustion air setting when ﬁ ring gaseous fuels.

Instruction 0011-9026 Page 15

measurements alone do not determine

Page 20

As a rule of thumb, background gases/vapors may be present in con centrations up to 1/2% by volume (5000 ppm) before they present a signiﬁ cant interference problem to the CO

or O2 FYRITE (20/21% ranges).

An exception exists with the action of ammonia on Oxygen FYRITE Fluid. Ammonia neutralizes the acidic solution of chromous chloride, and therefore use of the O2 FYRITE with even trace amounts of ammonia in the backgrounds is not advised unless suitable ﬁ lters are used.

Inert gases, even in concentrations approaching 100% by volume, do not interfere with either the CO reaction initiated) or a mechanical nature, with resultant error, but are also given up

or O2 FYRITE. In general, interferences can be of a chemical (chemical

by the solution when the sample no longer contains the interfering substance. They can therefore be compensated for by saturating the FYRITE solution with samples containing the mechanical interferant as long as the background stays reasonably constant. Usually 3 or 4 tests are sufﬁ cient to saturate FYRITE solution with the mechanical interferant in question.

TYPICAL TYPE OF APPROXIMATE

INTERFERENCE INTERFERENCE EFFECT (CO

FYRITE)

All Acid Gases Chemical 1:1 (SO cynanic Acid,

, H2S, Hydro-

Cyanogen, etc.).

TYPICAL TYPE OF APPROXIMATE INTERFERENCE INTERFERENCE EFFECT (O

FYRITE)

Acetone Chemical 1:1 Acetylene Chemical 1:1 and other unsaturated hydrocarbons

Mechanical, 20% CO2 Can be zeroed out up

background can be to approximately 30% zeroed out in 3 to 4 CO2 background. tests if background remains constant.

Ammonia Chemical Ammonia neutralizes O and instrument use on

FYRITE solution

this background is not advised unless suit able ﬁ lters are used.

Nitrous Oxide (N

Instruction 0011-9026Page 16

O) Mechanical - - -

Page 21

Figure 17. Checking CO2 of gas

designed furnace (sampling tube inserted through draft diverter; ﬂ ue gas temperature test can be made at same point).

5.7 General FYRITE Applications

It is only possible to specify a few general rules for such applications. Where possible, sample should be obtained at a point where the gases are well mixed to a uniform composition. Where this is impossible; it will be necessary to average a number of measurements taken at different locations to obtain representative average. Where gases being sampled are not saturated with moisture (many non-combustion applications), it is very important to maintain the wool packing of Filter Saturator Tube in a moist condition.

NOTE: The FYRITE is calibrated to analyze gases which are normally saturated with moisture. Failure to moisten wool packing in ﬁ lter saturator tube with water will cause FYRITE to indicate slightly lower than actual gas concentration.

Where special length sampling lines are required, add one more bulb squeeze to the 18 required with standard Sampling Assembly for each additional 3 cubic inches (50cc) volume of special sampling line.

EXAMPLE: For each 9 ft. of 3/1 6 inch (I.D.) additional length of sampling line, add one more bulb squeeze.

If it is necessary to trap a sample over water for later analysis, a minimum of 900 cc of sample will be required. If sample is trapped over water, it is good practice to use 10 to 15% NaCl (table salt) in the water to minimize absorption of CO

or O2 by water.

Trapping a sample over mercury will eliminate any possible error due to absorption of CO2 or O2.

5.8 Altitude Correction Table

Instruction 0011-9026 Page 17

Page 22

The gas concentration read on the FYRITE is directly dependent upon the mass of air in the sample. The aspirator bulb used in the FYRITE is a constant-volume pump, not a constant-mass pump. Altitude, therefore, affects the FYRITE reading due to the air’s density changing with altitude, thus requiring higher CO reach the same mark on the scale.

or O2 concentrations to

Use the following table to ﬁ nd the altitude correction (e.g., add the correction to the reading to get the correct concentration).

TABLE 5-1. ALTITUDE CORRECTION TABLE

Altitude Correction % Ft. (Meters) 20% CO

21% O2 7% O2 or CO

1000 (305) 0.0 0.0 0.0

2000 (610) 0.0 0.0 0.0

3000 (914) 0.1 0.1 0.0

4000 (1575) 0.1 0.2 0.1

5000 (1219) 0.2 0.2 0.2

6000 (1829) 0.2 0.3 0.2

7000 (2134) 0.3 0.3 0.3

8000 (2438) 0.4 0.4 0.3

9000 (2743) 0.4 0.5 0.4

10,000 (3048) 0.5 0.6 0.5

11,000 (3353) 0.6 0.7 0.5

12,000 (3658) 0.7 0.8 0.6

13,000 (3962) 0.7 0.8 0.6

14,000 (4267) 0.8 0.9 0.7

6.0 FYRITE MAINTENANCE

NOTE: With FYRITE vented and in a vertical position, it should be possible to adjust scale zero to the top of the ﬂ uid col- umn. Refer to FYRITE Operation (Section 3.0) Steps 1 through 4 (for CO2) or Steps 1 through 5 (for O2) for proper setup. If this is not possible, add or remove a small amount of ﬂ uid as described below.

6.1 Increasing FYRITE Fluid To Proper Level

Refer to Figure 18. Hold FYRITE upright and cover hole in center of Plunger Valve with ﬁ nger. Add clean water, a few drops at a time (dripping water faucet is con- venient) into space around Plunger Valve. Work Plunger Valve up and down several times. Repeat process until ﬂ uid is at proper level.

6.1.1 Decreasing FYRITE Fluid to Proper Level

Instruction 0011-9026Page 18

Page 23

Refer to Figure 19. To remove excess ﬂ uid, insert small diameter glass tube into FY- RITE ﬂ uid through the small center FYRITE bore (with Top Cap Assembly removed). Seal open end of glass tube with ﬁ nger and dip out ﬂ uid with glass tube until FYRITE ﬂ uid is at proper level. Avoid unnecessary exposure of O2 ﬂ uid to air since it will rap- idly absorb O2 and become exhausted.

6.2 Checking FYRITE Fluid Strength

6.2.1 CO2 FYRITE Fluid Only

Fresh FYRITE ﬂ uid will absorb all CO

. Where it is desirable to check ﬂ uid strength before taking FYRITE to the test

location to be used, or when a questionable (low) FYRITE reading is obtained the instrument may be tested on any sample of CO mately 4% CO

) is often most convenient.

from more than 350 samples containing 10%

. Exhaled breath (containing approxi-

Disconnect the rubber bushing and Sampling Hose Assembly from the Filter Saturator Tube. Place the rubber connector tip over the Plunger Valve and depress Plunger Valve down ﬁ rmly with rubber connector tip. Take a deep breath, hold for 3 or 4 seconds and exhale at a steady rate into the rubber bushing end of the Sampling Hose Assembly. Simultaneously squeeze the Aspirator Bulb several times while exhaling breath. Release rubber connector tip from Plunger Valve while still exhaling breath. Perform steps outlined below to absorb exhaled breath into FYRITE ﬂ uid.

1. Absorb sample gas into FYRITE by inverting until ﬂ uid drains into top reser- voir, then turn upright to drain ﬂ uid into bottom reservoir. Repeat this step once more (two complete inversions total).

2 Hold FYRITE at 45° angle momentarily to allow ﬂ uid droplets to drain into bot-

tom reservoir.

3. With FYRITE held upright, permit ﬂ uid in column to stabilize a few seconds, then immediately read % carbon dioxide on scale at point corresponding to top of ﬂ uid column.

To check CO gas by inverting and turning upright. Repeat this step once more (two complete inversions total). If reading increases by more than 1/2 percent CO reading; replace ﬂ uid.

FYRITE ﬂ uid strength - DO NOT VENT FYRITE but reabsorb sample

as compared to initial

Formation of a frothy, persistent foam on FYRITE ﬂ uid also indicates need for ﬂ uid replacement. A few “beads” or small air bubbles ﬂ oating near the small center bore wall is not considered foaming. FYRITE ﬂ uid may be colored for ease in readings. Color has no bearing on ﬂ uid strength or ability to absorb CO

Cloudy ﬂ uid or small ﬂ akes of solid material in ﬂ uid do not necessarily mean CO ﬂ uid is exhausted. Precipitate may form in CO and can be ﬁ ltered through cheese cloth or other screen like material when reﬁ lling

Reﬁ ll Bottles due to extended storage,

FYRITE.

NOTE: If compressed gas standards are used to check FYRITE

Instruction 0011-9026 Page 19

Page 24

%CO

Figure 18. Increasing FYRITE ﬂ uid to proper level.

Figure 19. Decreasing FYRITE ﬂ uid to proper level

TOP GASKET

%CO

OVAL HEAD SCREWS

Figure 20. Removing top gasket. Figure 21. Flushing FYRITE with

TOP CAP/ PLUNGER VALVE ASSEMBLY

TOP CAP RING WITH GASKET

a stream of O see Fig. 21a for alternate method).

free, inert gas (Also

Instruction 0011-9026Page 20

Page 25

accuracy don’t forget to saturate ﬁ lter saturator wool packing as such gas standards are usually supplied “bone dry”.

6.2.2 O

Fresh FYRITE ﬂ uid will absorb all O 10% O RITE Fluid strength can be checked by performing steps outlined below:

FYRITE Fluid Only

from approximately 100 samples containing

. After completing test (as outlined in Section 3.0 Steps 1 through 9) O2 FY-

1. DO NOT VENT FYRITE, but reabsorb sample gas into FYRITE by inverting until ﬂ uid drains into top reservoir, then turn upright to drain ﬂ uid into bottom reser- voir. Repeat this step three (3) more times (four complete inversions total).

2. Hold FYRITE at 45° angle momentarily to allow ﬂ uid droplets to drain into bot- tom reservoir.

3. With FYRITE held upright, permit ﬂ uid in column to stabilize a few seconds, then immediately read % oxygen on scale at the point corresponding to top of ﬂ uid col- umn. If reading increases by more than 1/2 percent O reading, replace ﬂ uid.

as compared to the initial

When it is desirable to check ﬂ uid strength before taking the FYRITE to a location where it will be used, it can be conveniently tested on a sample of atmospheric air which contains 20.9% O

NOTE: Make certain wool in ﬁ lter saturator tube is moistened with water when using FYRITE in a non -combustible application where the gas sample is not fully saturated with water vapor.

Formation of a frothy, persistent foam on FYRITE ﬂ uid also indi cates need for ﬂ uid replacement. A few “beads” or small air bubbles ﬂ oating near the small center bore wall is not considered foaming. Color of FYRITE O ability to absorb oxygen although towards the end of ﬂ uid life, a greenish cast can be

(blue) ﬂ uid is not an index of

detected.

NOTE: If compressed gas standards are used to check FYRITE accuracy, don’t forget to saturate ﬁ lter saturator wool packing as such gas standards are usually supplied “bone dry”.

6.3 Replacing FYRITE Fluid (Refer to Figs 20, 21, and 22)

CAUTION

Because of the corrosive effect of the FYRITE ﬂ uid, always change FYRITE ﬂ uid in immediate vicinity of a sink with run- ning water available as shown in Figure 18.

Remove 4 screws, metal Top Cap Ring, plastic Top Cap Assembly and Top Gasket.

Instruction 0011-9026 Page 21

Page 26

Drain old ﬂ uid from FYRITE and rinse all parts in clean, lukewarm water.

NOTE: FYRITE ﬂ uid is corrosive to skin, clothing, some met- als, and painted or lacquered surfaces. Dispose of these ﬂ uids in accordance with Local, State and Federal Laws. If draining into a porcelain sink is permitted, keep water faucet turned on while draining and ﬂ ush for at least 1/2 minute afterwards.

NOTE: Examine top gasket for warpage, if distorted as shown in Figure 22, replace gasket with part # 11-0143 before proceeding.

Drain all parts of excess water. Stand FYRITE Body upright to center replacement Top Gasket in recess provided in top ﬂ ange of body.

FYRITE Only: Before adding ﬂ uid, ﬂ ush FYRITE with a stream of O2 - free, inert

gas (Figure 21) or be prompt in reassembling Top Cap to prevent excessive ﬂ uid con- tact with air.

Uncap FYRITE ﬂ uid bottle, invert FYRITE and place over the bottle. Invert both FYRITE and bottle (Figure 21a) so that FYRITE comes to an upright position and the ﬂ uid is ﬁ lling the unit. Immediately install plastic Top Cap Assembly and metal Top Cap Ring without delay.

FYRITE Only: Uncap CO2 Reﬁ ll Bottle and pour entire contents into FYRITE.

Reinstall plastic Top Cap Assembly and metal Top Cap Ring.

CO2 / O2 FYRITEs: Make certain that Top Cap Ring Gasket (11-0109, Figure 33) is in place between metal Top Cap Ring and plastic Top Cap. Draw the 4 machine screws down with light screwdriver force.

Then, going from one screw to the next, draw down 1/4 turn until all are ﬁ rmly tight- ened. Avoid excessive force in tightening which may damage plastic parts.

6.4 Inspection of FYRITE for Fluid Leakage

Gradual loss of ﬂ uid, moisture or dried encrustation around Plunger Valve does not indicate ﬂ uid leakage. Gas enters and leaves unit during sampling with considerable velocity and some ﬂ uid vapor is carried out during normal sampling. To check Top As- sembly for ﬂ uid leakage in upright position, depress Plunger Valve and release.

Note the scale reading at top of ﬂ uid column, and then stand FYRITE upside down overnight in glass or porcelain test dish (See Figure 23). Then, return FYRITE to upright position and, after allowing 5 minutes for drainage, depress and release Plunger Valve. Leakage will be evidenced by lower scale reading. Extreme leakage will be apparent by presence of ﬂ uid in test dish.

Follow the same procedure to check ﬂ uid leakage from Bottom Cap Assembly with FYRITE stood overnight in the upright position.

When leakage is proven, examine plastic and rubber parts for deterioration to deter-

Instruction 0011-9026Page 22

Page 27

%CO

Figure 21a. Alternate ﬁ lling meth- od. Invert FYRITE (with bottle in

Figure 22. Examining top gasket for warpage.

place) to upright position.

TOP CAP

ASSEMBLY

GASKET

%CO

Top Gasket used in 7%,

20% & 21% Models only

Figure 23. FYRITE inverted in test disk (overnight) for leakage test.

Figure 24. Top gasket properly centered in top ﬂ ange of body.

Instruction 0011-9026 Page 23

BODY

Page 28

mine replacement parts necessary for repair, or drain instrument and return if factory service or repair is desired.

6.5 Cleaning FYRITE

Use only soapy lukewarm water if cleaning is required (lukewarm water is usually sufﬁ cient).

NOTE: Use of gasoline, naptha, carbon tetrachloride or any other organic solvent or oil will destroy plastic and rubber parts.

6.6 Replacing FYRITE Plastic and Rubber Parts (Refer to Illustrated

Parts List FYRITE CO

Replace plastic parts when cracked or crazed in location exposed to ﬂ uid and rubber parts when badly swollen, warped or showing other evidence of deterioration.

In replacing Top Gasket, make certain it is properly centered in the recess provided in top ﬂ ange of FYRITE Body (See Figure 24). When installing plastic Top Cap Assem- bly, be sure that assembly is centered on Top Gasket.

To remove Top Cap Assembly or replace Top Cap, Plunger Valve, or Plunger Tip Gasket, use the procedure as outlined in Section 6.3.

When replacing Plunger Tip Gasket, simply depress Plunger Valve against its spring limit and strip old Gasket from the end of Plunger Valve.

[Section 7.0 and Fig. 33])

2/O2

Before assembling new Gasket, wet inside surface of Tip Gasket, then force it over the end of Plunger Valve (after depressing Plunger Valve against the spring limit).

Make certain that new Tip Gasket is seated uniformly against the mating surface in plastic Top Cap.

To replace Diaphragm, stand FYRITE upside down, remove 4 screws and metal Bottom Cap.

Refer to Figure 25a. Remove old Diaphragm and center new replacement with the lettering facing you, so that after the FYRITE Bottom Cap is installed the letters will face up into its recess. Center Bottom Cap Assembly in Body Recess and reinstall 4 screws, observing same precautions in tightening as outlined in Section 6.3.

To replace Body, remove the 4 hex head Bezel screws and 4 Bezels. Install Bezels on new Body.

NOTE: Make certain the rubber bezel gaskets are properly seated and clamped between bezel and body as shown in Figure

25.

6.7 Aspirator Bulb - Sampling Assembly (Refer to Figs. 26, 27, & 28)

Defective Check Valves or a leaking Sampling Assembly can result in sample loss, or sample dilution with resultant loss of accuracy.

To inspect Sampling Assembly, seal hole in the center of rubber Connector Tip ﬁ rmly

Instruction 0011-9026Page 24

Page 29

Figure 25a. Replacement Diaphragm

%CO2

LETTERING

BOTTOM CAP

(RECESS)

properly installed.

Figure 25. Locating Bezel Rubber Gaskets.

Figure 26. FYRITE Sampling Assembly; Locating Inlet/Outlet Check Valves.

Instruction 0011-9026 Page 25

Page 30

with ﬁ nger and squeeze Aspirator Bulb (Figure 27). Bulb should remain ﬁ rm. If Bulb collapses, check Bulb and Hose to Connector Tip for cracks or other source of leakage. Replace defective parts. If there are no apparent leaks in the Sampling Assembly, replace Inlet Check Valve. Small hole end of Inlet Check Valve ﬁ ts in Hose and large hole end ﬁ ts in the Aspirator Bulb (Figure 26).

Now seal end of metal Sampling Tube with ﬁ nger, and collapse Aspirator Bulb. (Fig- ure 28). If the Bulb returns to original shape in less than 15 seconds, inspect Hose, Filter, Saturator Tube and Metal Sampling Tube for leaks. If none are found, replace the Outlet Check Valve. Small hole end of Outlet Check Valve ﬁ ts in Aspirator Bulb and large hole end ﬁ ts in the Hose (Figure 26).

Discard Filter Packing when it becomes dirty or clogged. Push old packing out of, and new packing into, Filter Saturator Tube with a pencil or small rod (See Section 6.9).

6.8 Storing FYRITE and Reﬁ ll Fluid

When FYRITE is not used over periods between tests, store it and its Sampling Assembly in a cool, dry place. Prolonged storage, for example, at high temperatures reached in an automobile trunk over the Summer is not recommended. When stored unused over the Summer, it is good practice to drain old ﬂ uid and replace with fresh charge (ﬂ uid) when needed in the Fall.

FYRITE Reﬁ ll Fluid should also be stored in a cool, dry location in the carton pro- vided. A recommended practice is to accumulate stock only sufﬁ cient for one year requirement and to use oldest stock ﬁ rst. Fluid can be tested for performance accord- ing to Section 6.2.

Use only Bacharach CO below contain three Reﬁ ll Bottles each.

7% CO

20% and 60% CO2 range .............Reﬁ ll Kit 10-5057

or O2 Fluid Reﬁ lls for the range FYRITE selected. The Kits

range ..............................Reﬁ ll Kit 10-5100

7% O2 range .................................Reﬁ ll Kit 10-5103

21% and 60% O2 range ................Reﬁ ll Kit 10-5060

6.9 Replacing Saturator Filter Packing Part #11-0121

(Refer to Figs 29 thru 32)

Remove the ﬁ lter tube nipple and bushing (See Figure 29) from each end of the tube. Use a pencil or similar object to remove packing when it becomes dirty or clogged.

Wrap replacement packing around the hand (See Figure 30). If testing unsaturated gases (most non-combustion applications), saturate packing in water as shown in Figure 3, and squeeze out excess moisture.

Insert saturated packing using a pencil or small rod into ﬁ lter tube (See Figure 32); then reassemble nipple and bushing.

7.0 ILLUSTRATED PARTS LIST FYRITE CO2/O2

(Refer to Figure 33 FYRITE Parts Breakout)

Instruction 0011-9026Page 26

Page 31

RUBBER CONNECTOR TIP (HOLD FINGER HERE)

ASPIRATOR BULB SHOULD REMAIN FIRM WHEN SQUEEZED

Figure 27. Testing Sampling Assembly (outlet side) for leaks.

CHECK FOR BULB INFLATION AFTER SQUEEZING

SAMPLING TUBE END (HOLD FINGER HERE)

Figure 28. Testing Sampling Assembly (inlet side) for leaks.

Figure 29. Removing End Plugs from Saturator Filter Tube.

Instruction 0011-9026 Page 27

Page 32

Figure 30. Wrapping Replacement Filter Material.

Figure 31. Wet Filter Material then squeeze out excess water.

Figure 32. Installing wetted Filter Material into Saturator Tube.

Instruction 0011-9026Page 28

Page 33

Part # Description Qty-Rq’d

11-0102 Bezel 4

11-0188 Oval Head Screw 8

11-0110 Bezel Screw 4

11-0109 Top Cap Ring Gasket (Optional, Part of 11-0136) 1

11-0105 Scale Screw 1

02-3690 Scale Screw Nut 1

11-0021 Diaphragm 1

11-0126 Bottom Cap 1

11-0132 Top Cap 1

11-0019 Valve Plunger 1

11-0026 Valve Plunger Spring 1

11-0020 Valve Plunger Gasket 1

11-0136 Top Cap Ring with Gasket 1

11-0143 Top Gasket (7%, 20% & 21% Models only) 1

11-0140 FYRITE Body (All Models except 7.0% CO

/ O2) 1

11-0154 FYRITE Body (7% Models only) 1

11-0062 Filler 60% FYRITE (Adapter Plug) 1

05-5134 Bezel Gasket “O” Ring 2

05-5169 O-Ring Filler (Outer 60%) 1

05-5155 O-Ring Filler (Inner 60%) 1

11-0144 CO

Scale 20% 1

11-0145 O2 Scale 21% 1

11-0147 CO2 Scale 60% 1

11-0150 O2 Scale 60% 1

11-0155 CO2 Scale 7% 1

11-0157 O2 Scale 7% 1

10-5057 Carton of FYRITE CO2 Fluid (3 Bottles) 20/60% range Models 1

10-5060 Carton of FYRITE O2 Fluid (3 Bottles) 21/60% range Models 1

10-5100 Carton of FYRITE CO2 Fluid (3 Bottles) 7% range Models 1

10-5103 Carton of FYRITE O2 Fluid (3 Bottles 7% range Models 1

Instruction 0011-9026 Page 29

Page 34

7.1 FYRITE ILLUSTRATED PARTS

11-0026

11-0188

11-0019

11-0102

11-0188

11-0110

11-0140

11-0136

11-0109

11-0132

11-0143 (7%, 20%, and 21% Models Only)

11-0020

11-0110

05-5134

11-0105

11-0154

11-0062

05-5169

05-5155

02-3690

05-5134

11-0102

11-0110

11-0021

Instruction 0011-9026Page 30

11-0126

11-0110

11-0102

11-0188

Figure 33. FYRITE parts breakout.

Page 35

7.2 PARTS LIST FOR FYRITE SAMPLING ASSEMBLIES

STANDARD SAMPLING ASSEMBLY Part No. 11-7029 Gases saturated with water vapor (combustion products). Dry gases when ﬁ lter material is wetted.

0011-0122

0011-0152

0011-0106

0011-0118

0011-0138 0011-0138

(0011-0180 + 0011-0130)

0011-0120

0011-0119

Instruction 0011-9026 Page 31

Page 36

Current Former Part # List # Description # Req'd

11-0152 10-0019 Connector Tip with Tube 1

11-0156 10-0029 Rubber Tubing, 10' Length 1

11-0118 10-0020 Rubber Tubing, 6" Length 2

11-0165 10-0030 Filter Tube, Aluminum 1

19-5004 19-9004 Gas Collecting Bladder with Oriﬁ ce 1

11-0120 10-0022 Aspirator Bulb 1

11-0138 10-0023 Inlet/Outlet Valve (Red) 2

11-0119 10-0024 Rubber Tubing, 3' length 1

11-0180 10-0025 Filter Nipple with Bushing 2

11-0130 10-0026 Filter Tube, Plastic 1

11-0106 10-0027 Sampling Tube 1

11-0161 10-0040 Condenser Coil 1

11-0179 10-0042 Rubber Tubing, 15' length 1

11-0121 10-0033 Envelope of Filtering Material (10 per pack)

11-0181 10-0032 Filter Saturator (Aluminum) Assembly

Comprising 11-0180, 11-0122, and 11-0165

Instruction 0011-9026Page 32

Page 37

Notes

Instruction 0011-9026 Page 33

Page 38

Notes

Instruction 0011-9026Page 34

Page 39

Notes

Instruction 0011-9026 Page 35

Page 40

Instruction 0011-9026Page 36

Bacharach, Inc.

621 Hunt Valley Circle, New Kensington, PA 15068

Phone: 724-334-5000 • Fax: 724-334-5001 • Toll Free: 800-736-4666

Web: www.mybacharach.com • E-mail: help@mybacharach.com