Bacharach 24-9415, 24-7224 User Manual

Introduction

The Bacharach Flue-Gas Sample Conditioning System consists of the
following components:

• Probe with Peltier Cooler

• Condensate Pump with Water Trap

• Power Supply

The function of this system is to remove water vapor from the ue-gas

sample, thus preventing the formation of water droplets inside the
probe hose. If water droplets were to form inside the hose, a portion of
the gas sample could be absorbed by the water, thus resulting in lower­than-actual readings of NO2 and SO2.

Instruction 24-9415

Flue-Gas Sample

Conditioning System

P/N 24-7224

Rev. 5 – June 2005

Water vapor is removed from the ue-gas sample by passing the sample

through a Peltier Cooler where the sample is chilled, which in turn,
causes the water vapor contained in the gas sample to be removed from
the sample.

The water that was extracted from the gas sample is then pumped out
of the Peltier Cooler and into a water trap.

The now dry, conditioned ue-gas sample is then sent to its associated

combustion test equipment for analysis.

Figure 1. Flue-Gas Sample Conditioning System

Probe w/ Peltier Cooler

Power Supply

Pump
w/ Water Trap

Product Leadership • Training • Service • Reliability

Technical Data

Probe:

Standard Length ......................................................... 11.5 in (295 mm)

Optional Lengths ............................................................. 7 in (180 mm)

19.5 in (500 mm)
39 in (1000 mm)

Peltier Cooler:

Inlet Sample Dew Point.......................................... 149 °F (65 °C) max.

Outlet Sample Dew Point .................18 °F (10 °C) min. below ambient

Cooling Power ................................................................................. 10 W

Environment Temperature .............................32 to 104 °F (0 to 40 °C)

Weight ................................................................................8.5 oz (240 g)

Condensate Pump:

Sample Flow Rate ..........................................................1.5 LPM @ STP

Length of Hose ...................................................................... 6.6 ft (2 m)

Reservoir Storage ........................................................................... 50 ml

Environment Temperature .............................32 to 104 °F (0 to 40 °C)

Weight ..............................................................................12.7 oz (360 g)

Flue Gas Sample Conditioning System

Power Supply:

Input .............................................................. 100 to 240 VAC, 50/60 Hz

Output ............................................................ 9 VDC, max. @ 4 A, max.

Equipment Setup

Refer to Figure 2. If not already done, attach the Peltier cooler to the

probe assembly by rst removing the plastic end cap from the rear of
the probe, and then inserting the cooler’s inlet connector, ensuring rst
that a lter is present between the cooler and probe.

Attach the pump’s inlet hose to the bottom of the Peltier cooler. Water
that is condensed from the ue-gas sample will be pumped into the con­densate pump’s reservoir through this hose. Note that the condensate
pump can be placed in an upright, horizontal, or hanging position. A
magnet mounted in the base of the pump allows the pump to be at­tached to overhead ductwork.

Connect the power supply’s DC output connector to the condensate
pump; then connect the condensate pump’s DC output power connector
to the Peltier cooler. The Peltier cooler and its associated condensate
pump are started by plugging the power supply into a source of AC
power that is between 100 and 240 VAC, 50/60 Hz.

Connect the probe assembly’s stack-temperature thermocouple con-

nector, pressure tting, and ue-gas tting to the combustion analyzer

per the analyzer’s instruction manual.

2 Bacharach, Inc. Instruction 24-9415

Flue Gas Sample Conditioning System

PELTIER
COOLER

PROBE ASSEMBLY

PUMP

POWER SUPPLY

100 – 240 VAC
50/60 HZ

Connect to
Combustion Test
Equipment

STACK TEMP.
THERMOCOUPLE

PRESSURE (Blue)
FLUE GAS (Yellow)

Figure 2. Equipment Setup

Instruction 24-9415 Bacharach, Inc. 3

Operation

Flue Gas Sample Conditioning System

When ready to conduct a combustion efciency test, plug in the power

supply of the Flue-Gas Sample Conditioning System. You should hear
the condensate pump start running and see the Peltier cooler’s red LED
turn on and off as the cooler is cycled. Note that the cooler’s operating
time changes according to its temperature.

Set up and congure the combustion analyzer as described in its in­struction manual. Then insert the probe into the ue stack and begin

testing.

During the combustion test, the condensed water vapor from the ue

gas will accumulate inside the pump’s reservoir. If the water level be­gins to approach the ends of the tubes inside the reservoir, then stop the
test and empty the reservoir as described in the Maintenance Section of
this manual.

WARNING! The probe tube is hot! In the following step, be

sure to allow the probe tube sufcient time to cool before

handling.

At the conclusion of the combustion test, remove the probe from the
stack; then unplug the Peltier cooler’s power supply.

4 Bacharach, Inc. Instruction 24-9415

Flue Gas Sample Conditioning System

Maintenance

Probe

The probe’s sponge-type lter (Figure 3, Item 9) needs to be inspected at
regular intervals for dirt contamination. Replace lter as necessary by
rst pulling out the Peltier cooler from the probe and then exchanging
the lter with a new one.

Peltier Cooler

The cooler’s wadding lter (Figure 3, Item 12) needs to be inspected at
regular intervals for dirt contamination. Replace lter as necessary by
rst pulling off the lter chamber’s top cap and then exchanging the
lter with a new one.

Condensate Pump

WARNING! The condensed water will be warm and slightly

acidic. Take all necessary precautions to prevent the water
from splashing into your eyes or contacting your skin.

Empty the pump’s reservoir (Figure 3, Item 15) by rst holding the

pump with its reservoir facing downwards. Then twist the reservoir 90
degrees (either clockwise or counterclockwise) to free it from the pump
base. Empty the reservoir; then reattach it to the pump. Before reat­taching the reservoir, however, make sure that the reservoir’s o-ring
(Figure 3, Item 20) is properly positioned inside its grove in the pump
base.

The pump’s wadding lter (Figure 3, Item 17) needs to be inspected at
regular intervals for dirt contamination. Replace lter as necessary by
rst unscrewing the lter chamber cap and then exchanging the lter

with a new one.

Instruction 24-9415 Bacharach, Inc. 5

Replacement Parts

Item Description Part No.

(Fig 3)

Probe:

1 Complete Assembly (w/ 11.5 in. probe tube)................. 24-3038

2 Probe Tubes:

7 in. (180 mm) .......................................................... 24-1183

11.5 in. (295 mm) ..................................................... 24-1184

19.5 in. (500 mm) ..................................................... 24-1185

39 in. (1000 mm) ...................................................... 24-1186

3 Gas Hose Fitting ............................................................ 24-0877

4 Draft Hose Fitting .......................................................... 24-0878

5 Probe Stop ...................................................................... 19-3037

6 Thumb Screw ............................................................... 102-0875

7 Screw, M4 x 6mm ......................................................... 501-3829

8 Retaining Nut ............................................................... 102-3740

9 Filter (Qty. 5).................................................................. 07-1646

Flue Gas Sample Conditioning System

Peltier Cooler & Power Supply:
10 Complete Assembly, Peltier Cooler & Power

Supply (AC Power Cord not included) ....................... 24-1179

11 Plastic End Cap ............................................................ 106-5454

12 Filter Wadding ............................................................... 07-1647

13 Power Supply ............................................................... 304-1713

14 AC Power Supply Cord, 3-Wire ................................. 4998-8986

Condensate Pump:

15 Complete Assembly ........................................................ 24-1180

16 Reservoir ...................................................................... 106-5453

17 Plastic Screw-On Cap .................................................. 106-5455

18 Filter Wadding (Qty. 1) .................................................. 24-1205

19 Plastic Cap w/ Drain .................................................... 106-5456

O-Rings:

20 9 x 2 mm ....................................................................... 105-5105

21 4 x 1.75 mm .................................................................. 105-5106

22 50 x 3 mm ..................................................................... 105-5107

23 11 x 1 mm ..................................................................... 105-5108

6 Bacharach, Inc. Instruction 24-9415

Flue Gas Sample Conditioning System

11
20

20

12

Part of Item 10

1

21

9

6

7 8 5 2

Part of Item 10

13 14

18

23
17

22

16

20

19

15

Figure 3. Replacement Parts

Instruction 24-9415 Bacharach, Inc. 7

Bacharach Sales/Service Centers

Service can be obtained by contacting a Bacharach Service
Center at the following locations:

United States

Bacharach Sales/Service Center
621 Hunt Valley Circle
New Kensington, PA 15068
Phone: [phone]
Fax: [phone]
Email: [e-mail]

Canada

Bacharach of Canada, Inc.
250 Shields Court Unit #3
Markham, Ontario L3R 9W7 Canada
Phone: [phone]
Fax: [phone]
Email: [e-mail]

Flue Gas Sample Conditioning System

México

Bacharach de México
Playa Regatas No. 473 Tercer Piso
Col. Militar Marte
Delegación Iztacalco, 08830
México D.F. México
Phones: [phone]
[phone]
Fax: [phone]
Email: [e-mail]

Europe

European Headquarters

Bacharach Instruments
Sovereign House, Queensway
Royal Leamington Spa
Warwickshire CV31 3JR
United Kingdom
Phone: [phone]
Fax: [phone]
Email: [e-mail]

8 Bacharach, Inc. Instruction 24-9415

Flue Gas Sample Conditioning System

Instruction 24-9415 Bacharach, Inc. 9

621 Hunt Valley Circle, New Kensington, PA 15068

Headquarters:

Ph: 724-334-5000 • Fax: [phone] • Toll Free: 800-736-4666

Website: www.bacharach-inc.com • E-mail: [e-mail]

Printed in U.S.A. ® Registered Trademark
Copyright © Bacharach, Inc. 2000 – 2005