Bacharach PCA 3 Owner's Manual
Portable Combustion Analyzer
Operation and Maintenance Manual
Instruction 0024-9472
Rev. 2 – August 2012
Product Leadership • Training • Service • Reliability
PCA3 Manual
WARRANTY POLICY
Bacharach, Inc. warrants to Buyer that at the time of delivery thi s Product will be free from
defects in material and manufacture and will conform substantially to Bacharach Inc.’s
applicable specifications. Bacharach’s liability and Buyer’s remedy under thi s 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 manufacture and s hown to Bacharach Inc.’s reas onable
satisfaction to have been defective; provided that written notice of the defect shall have
been given by Buyer to Bacharach Inc. within two (2) years after the date of delivery of this
Product by Bacharach, Inc. The Oxygen (O
Routine service and calibration are excluded from this warranty.
Bacharach, Inc. warrants to Buyer that it will convey good title t o 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 Bacharach, to t he replacement of this Product or parts thereof
that are defective in title.
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 WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE: AND (II) ANY
OBLIGATION, LIABILITY, RIGHT, CLAIM OR REMEDY IN CONTRACT OR TORT,
WHETHER OR NOT ARISING FROM BACHARACH’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 including, without limitation incidental or
consequential damages. No agreement varying or extending the foregoing warranties,
remedies or this limitation will be binding upon Bacharach, Inc. unless in writing, signed by
a duly authorized officer of Bacharach.
) sensor has a limited warranty of one (1) year.
2
Register Your Warranty by Visiting
www.MyBacharach.com
NOTICE
Product improvements and enhancements are continuous, therefore the specifications and
information contained in this document may change without notice.
Bacharach, Inc. shall not be liable for errors contained herein or for incidental or
consequential damages in connection with the furnishing, performance, or use of this
material.
No part of this document may be photocopied, reproduced, or translated to another
language without the prior written consent of Bacharach, Inc.
Copyright © 2012, Bacharach, Inc., all rights reserved.
BACHARACH, PCA, B-SMART, and FY RITE are regist ered trademarks of Bacharach, Inc.
All other trademarks, trade names, service marks and logos referenced herein belong to
their respective companies.
2 0024-9472 Rev 2
TABLE OF CONTENTS
CHAPTER 1. INTRODUCTION ........................................................................ 7
1.1. About This Manual ....................................................................................... 7
1.2. Conventions ................................................................................................. 7
1.3. Safety ........................................................................................................... 7
1.4. General Description ..................................................................................... 9
1.5. Operation Overview ..................................................................................... 9
1.5.1. Turning On the PCA®3 ...................................................................... 9
1.5.2. The Combustion Test ..................................................................... 10
1.5.3. Turning Off the PCA®3 .................................................................... 10
1.6. Features and Benefits ................................................................................ 11
1.7. Sales Combo and Model Configurations .................................................... 12
1.8. Specifications ............................................................................................. 13
CHAPTER 2. HARDWARE ............................................................................ 15
2.1. Overview .................................................................................................... 15
2.2. Front Panel Buttons ................................................................................... 16
2.3. Backlit Display ............................................................................................ 17
2.4. Battery Compartment ................................................................................ 17
2.5. AC Adapter Connector (POWER) ................................................................ 17
2.6. Probe Connectors (Gas, Pressure, T-Stack) ................................................ 18
2.7. Differential Pressure Connector (∆P) ......................................................... 19
2.8. Primary Air Thermocouple Connector (T-AIR) ........................................... 19
2.9. Computer Interface (USB) .......................................................................... 19
2.10. Wireless Printer Port (IrDA) ..................................................................... 19
2.11. Options Connector (OPT) ......................................................................... 19
PCA3 Manual
CHAPTER 3. INITIAL SETUP ......................................................................... 20
3.1. Overview .................................................................................................... 20
3.2. Power ......................................................................................................... 20
3.3. Connecting the Probe and Hose Assembly ................................................ 21
3.4. Preparing to Configure the PCA®3 .............................................................. 21
CHAPTER 4. CONFIGURATION PROCEDURES .............................................. 23
4.1. Default Operating Parameters ................................................................... 23
4.2. Fuel Selection ............................................................................................. 23
4.3. Auto/Manual CO Zero Selections ............................................................... 24
4.4. Temperature Units Selection ..................................................................... 25
4.5. Pressure Units Selection ............................................................................ 26
4.6. Pollution Units Selection ............................................................................ 27
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PCA3 Manual
4.7. Date Setup .................................................................................................. 27
4.8. Time Setup ................................................................................................. 28
4.9. O2 Reference Setup .................................................................................... 29
4.10. Print Pressure Selection ........................................................................... 30
4.11. Zoom Display Selection ............................................................................ 30
4.12. Logging Selection ..................................................................................... 31
4.13. Button Sound Selection ............................................................................ 31
4.14. Test ID Information .................................................................................. 32
4.14.1. Entering or Editing a Test ID ........................................................ 32
4.14.2. Selecting a Test ID ....................................................................... 33
4.14.3. Clearing Test ID Information........................................................ 33
4.15. User Name ............................................................................................... 34
4.15.1. Entering a User Name .................................................................. 34
4.15.2. Clearing a User Name .................................................................. 35
4.16. Language .................................................................................................. 36
4.17. Cal Reminder Period ................................................................................ 36
4.18. Run/Hold Screen Format .......................................................................... 37
CHAPTER 5. OPERATION ............................................................................ 40
5.1. Operating Tips ............................................................................................ 40
5.2. Turning On the Analyzer ............................................................................ 41
5.3. Low Battery Alarm ..................................................................................... 42
5.4. Locating Sampling Points ........................................................................... 42
5.5. Performing a Combustion Test .................................................................. 43
5.6. Selecting a Pressure Label .......................................................................... 45
5.7. Temperature Label Selection and Measurement ...................................... 46
5.8. Performing a Draft / Pressure Measurement ............................................ 47
5.9. Saving Test Data ......................................................................................... 48
5.10. Ending a Combustion Test........................................................................ 49
5.11. Emptying the Water Trap ......................................................................... 49
5.12. Data Logging ............................................................................................. 50
5.12.1. Overview ...................................................................................... 50
5.12.2. Turning On Data Logging ............................................................. 51
5.12.3. Setting the Logging Interval and Duration ................................... 52
5.12.4. Starting the Data Logging Process ............................................... 53
5.12.5. Ending the Data Logging Process ................................................. 53
5.13. Memory Functions ................................................................................... 54
5.13.1. Overview ...................................................................................... 54
5.13.2. Recalling Combustion Test Data .................................................. 54
5.13.3. Recalling Logged Test Data .......................................................... 55
5.13.4. Clearing Memory ......................................................................... 56
4 0024-9472 Rev 2
5.14. Downloading Stored Data to a Computer ................................................ 57
5.15. Importing Saved Data into a Spreadsheet ............................................... 57
5.16. Printing Test Data ..................................................................................... 59
5.17. Turning Off the Analyzer and Purging ...................................................... 61
CHAPTER 6. CALIBRATION .......................................................................... 62
6.1. B-Smart Sensors ......................................................................................... 62
6.2. Starting a Calibration ................................................................................. 62
6.3. B-Smart® Sensor Replacement and Calibration .......................................... 63
6.4. Pressure Sensor Calibration ....................................................................... 64
6.4.1. Material Required .......................................................................... 64
6.4.2. Procedure ...................................................................................... 64
6.5. T-Stack Calibration ..................................................................................... 65
6.5.1. Material Required .......................................................................... 66
6.5.2. TS-Zero Procedure ......................................................................... 66
6.5.3. TS-Span Procedure ........................................................................ 67
6.6. T-Air Calibration ......................................................................................... 67
6.6.1. Material Required .......................................................................... 67
6.6.2. TA-Zero Procedure......................................................................... 67
6.6.3. TA-Span Procedure ........................................................................ 69
PCA3 Manual
6.7. CO
Sensor Calibration ........................................................................... 69
LOW
6.7.1. Material Required .......................................................................... 69
6.7.2. Procedure ...................................................................................... 70
6.8. SO2 Sensor Calibration ............................................................................... 72
6.8.1. Material Required .......................................................................... 72
6.8.2. Procedure ...................................................................................... 72
6.9. NO Sensor Calibration ................................................................................ 73
6.9.1. Material Required .......................................................................... 73
6.9.2. Procedure ...................................................................................... 73
6.10. NO2 Sensor Calibration ............................................................................. 74
6.10.1. Material Required ........................................................................ 74
6.10.2. Procedure .................................................................................... 74
6.11. CO
Sensor Calibration ......................................................................... 76
HIGH
6.11.1. Material Required ........................................................................ 76
6.11.2. Procedure .................................................................................... 76
CHAPTER 7. MAINTENANCE ....................................................................... 78
7.1. Overview .................................................................................................... 78
7.2. PCA®3 Disassembly ..................................................................................... 78
7.2.1. Tools Required ............................................................................... 78
7.2.2. Procedure ...................................................................................... 78
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PCA3 Manual
7.3. Emptying the Water Trap Chamber ........................................................... 83
7.4. Replacing the Filter Element ...................................................................... 83
7.4.1. Material Required .......................................................................... 83
7.4.2. Procedure ...................................................................................... 83
7.5. Sensor Replacement .................................................................................. 84
7.6. Nitric Oxide (NO) Sensor Battery Replacement ......................................... 86
7.6.1. Material Required .......................................................................... 86
7.6.2. Procedure ...................................................................................... 86
7.7. Cleaning the Probe ..................................................................................... 87
7.7.1. Equipment Required ...................................................................... 87
7.7.2. Procedure ...................................................................................... 87
CHAPTER 8. TROUBLESHOOTING ............................................................... 88
8.1. Error Symbols ............................................................................................. 88
8.2. Diagnostics and Status Screens .................................................................. 88
8.3. Accessing the Diagnostic Menu ................................................................. 89
8.4. Accessing the Status Menu ........................................................................ 89
8.5. Error Messages (After Warm-up) ............................................................... 89
8.6. Replacement Parts ..................................................................................... 90
8.7. Accessories ................................................................................................. 93
8.8. Analyzer Repair .......................................................................................... 95
8.9. Service Centers ........................................................................................... 95
CHAPTER 9. DECLARATION OF CONFORMITY ............................................. 96
6 0024-9472 Rev 2
A warning statement denotes a potential hazard
associated with the use of this equipment. Failure to follow this
situation which, if not avoided, may result in minor or moderate
n important statement provides emphasis of an
important feature, operation, etc. Failure to follow this information
could void your warranty, result in improper operation, or cause
This analyzer is not intended to be used as a safety
This analyzer is not intended to be used on a
PCA3 Manual
CHAPTER 1. INTRODUCTION
1.1. About This Manual
Thank you for investing in a Bacharach PCA®3 Combustion Analyzer. To assure
operator safety and the proper use of the PCA
manual for important information on the operation and maintenance of the
analyzer.
1.2. Conventions
WARNING:
information could result in serious personal injury or death.
CAUTION: A caution statement indicates a potentially hazardous
injury. Caution statements may also be used to alert against unsafe
practices.
IMPORTANT: A
equipment damage.
®
3, please read the contents of this
NOTE: A note statement provides emphasis of a feature, operation,
practice, etc.
1.3. Safety
WARNING:
device.
WARNING: When testing an appliance, a full visual inspection of
the appliance should be performed to ensure its safe operation.
CAUTION:
continuous basis.
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PCA3 Manual
Except for sensor and battery replacement, this
analyzer should only be opened and/or serviced by authorized
ally safe for use in areas classified as
To prevent this from occurring, a smoke test should be performed
s ensures that the
). This screen is removed by pressing the ENT button.
particular test. If a new test is started (by pressing the HOLD
CAUTION: Do not store instrument or its sensors with solvents or
products that contain solvents.
CAUTION:
Bacharach personnel. Failure to comply may void the warranty.
HAZARDOUS AREA WARNING: This instrument has not been
designed to be intrinsic
hazardous locations. For your safety, DO NOT use it in hazardous
(classified) locations.
CAUTION: When the instrument is used in an inefficient furnace or
boiler application where there is a high emission of soot, the probe’s
sample filter may become clogged. Before every use check the filter
to confirm that it is clean or replace it with a new filter.
before operating under such conditions. Thi
furnace or boiler is burning at a level appropriate for the use of this
instrument.
When the CO2 level exceeds the allowable threshold, a warning will
appear prompting the user to consider performing a smoke test (see
Figure 1-1
Once the warning is cleared, it will not be displayed again for that
button), the warning will be displayed again if the limit has been
exceeded.
Figure 1-1. High CO2 Warning
8 0024-9472 Rev 2
The PCA®3 is a commercial-grade hand-held combustion and emissions
demand sampling of light industrial, institutional,
commercial and residential furnaces, appliances, and boilers.
smart sensors, 4 ‘AA’ alkaline
Software, USB cable, and carrying
multaneously, so it is the
perfect tool for service technicians,
inspectors, and boiler contractors
and CO levels, stack temperature,
1.4. General Description
analyzer designed for onThe basic instrument is supplied with
a probe and hose assembly,
instruction manual, factory calibrated
batteries, boot, Fyrite® User
PCA3 Manual
case. Refer to Figure 1-2.
The PCA®3 can measure up to four
gases si
who need to determine combustion
efficiency, excess air, stack gas O2
draft, and differential pressure.
Figure 1-2. A Typical PCA®3 Kit
The analyzer can also directly measure and display NO, NO2 and SO2 with the
installation of the appropriate sensors. Combustion efficiency calculations can be
conducted for a variety of fuels (see Specifications later in this chapter).
B-Smart® sensor technology allows a new sensor to be installed in the field
without having to calibrate the analyzer with gas before use.
Advanced data storage and communication features allow the operator to store
up to 500 individual combustion test records, which can later be recalled for
viewing, printing, or downloading to a personal computer. In its data logging
mode, the analyzer can store an additional 500 data logged records. The
optional AC power adapter allows the analyzer to run for extended periods of
time while data logging.
The optional sample conditioning probe is recommended when measuring NO
and SO
to ensure the highest degree of measurement accuracy.
2
A probe and hose assembly with an integral thermocouple and filter/water trap
connect to the bottom of the analyzer, providing the means of drawing in gas
samples and for measuring stack temperature and draft.
1.5. Operation Overview
1.5.1. Turning On the PCA®3
The PCA®3 is turned ON by pressing its red I/O button. A warm-up period of 60
seconds then begins, during which time the analyzer performs self diagnostics.
At the end of the warm-up period, if no errors were detected the instrument will
display the Combustion Test HOLD screen. If errors were detected, the message
0024-9472 Rev 2 9
2
PCA3 Manual
“ERRORS DETECTED” is displa yed along with a list of the errors. These errors
must be corrected before proceeding with the combustion test.
Before starting a test be sure to select the fuel being burned. The default fuel
selected is Natural Gas. Note that the name of the fuel being burned is indicated
at the top of the run/hold screen.
1.5.2. The Combustion Test
To assure correct combustion efficiency calculations, the analyzer must know the
burner’s primary-air temperature. The analyzer normally uses its internal
temperature sensor for the primary-air temperature value, but this method is only
acceptable if the burner is using ambient room air. If the burner is drawing in cold
outside air, we recommend that the optional T-AIR thermocouple be used. This
thermocouple plugs into the bottom of the analyzer and is placed in the burner’s
primary-air stream.
Begin the combustion test by first inserting the analyzer’s probe tube into the
stack-gas stream of the appliance under test, and then pressing the RUN/HOLD
button to display the Combustion Test RUN screen. The analyzer will begin to
continuously monitor the stack temperature, %O
stack gas and then display measured and calculated values on its display. The
recommended time required to achieve a stable measurement is a minimum of 3
minutes.
During a test, the CO
sensor is protected from high CO levels by being
LOW
automatically flushed with fresh air when the detected CO level exceeds
4,000 ppm. The analyzer will automatically start using its optional CO
if installed, at CO levels starting at 4,001 ppm, thus providing continuous CO
readings up to 20,000 ppm.
A keypad backlight enables a user to read the keypad in dimly-lit areas. Turn the
keypad backlight ON and OFF by briefly pressing the I/O button.
1.5.3. Turning Off the PCA
®
3
The analyzer is turned OFF by pressing and holding down the I/O button for at
least 2 sec onds . Note t hat th ere is a 5 -second delay before the analyzer actually
turns OFF, during which time the analyzer can be turned back ON by pressing
the RUN/HOLD button. In addition, there is a gas-purge feature that keeps the
analyzer’s pump running if the gas level inside the sensor chambers is
abnormally high at shutdown. With the probe removed from the stack and
sampling fresh air, the analyzer purges itself until the detected gas
concentrations drop below predeter mine d lev els.
and emission levels in the
2
sensor,
HIGH
10 0024-9472 Rev 2
PCA3 Manual
1.6. Features and Benefits
Powered by 4 ‘AA’ alkaline batteries or NiMH rechargeable batteries. An
•
optional AC adapter provides ex tended operation.
and CO
O
•
2
additional gases, including CO
With the appropriate sensors installed, the analyzer optionally displays
•
pollution conversions for CO, NO, NO
include ppm, #/MBTU, mg/m
B-Smart
•
the field. Sensors are provided with data that can be entered through the
®
3 software, or instrument calibration menus, for easy calibration.
PCA
Automatic flushing of the CO
•
exceeds 4,000 ppm, thus protecting the CO
To measure CO levels above 4,000 ppm, the analyzer automatically
switches to its CO
Automatic purging of the gas-sample system if the detected gas levels are
•
abnormally high when the analyzer is turned OFF.
Displays temperatures in either °F or °C
•
Displays pressure in either inwc, mb, Pa, or hPa
•
Backlit color graphic LCD with zoom capabilities
•
Low battery alarm
•
Stores 500 individual combustion records, which can later be recalled for
•
viewing, printing, or downloading to a personal computer. Stores an
additional 500 data logged records.
Wireless IrDA link for printing current and stored combustion records,
•
pressure records, calibration data, and diagnostic data
USB connectivity for downloading data to personal computer
•
Field replaceable sensors and thermoco upl e
•
Two year warranty on analyzer and all gas sensors except the O
•
which has a one (1) year warranty.
Language options including English, F ren ch, and Spanish
•
Custom Display Formats
•
Calibration Reminders: PCA
•
calibration is past due.
Auto/manual zeroing option allows the operator to select the start-up mode.
•
Auto-zero determines the zero reading of the CO channel in fresh air and
provides an offset for the CO measurements. Also, all sensing channels are
automatically zeroed on ambient air when the analyzer is first turned ON.
Manual zero is used to
measurement standard. Optional measurement of up to two
LOW
®
sensor technology allows pre-calibrated sensors to be installed in
sensor, if installed.
HIGH
detect
, NO, NO2, or SO2.
HIGH
, and SO2. Pollution conversions
3
, and g/GJ.
LOW
®
3 can be configured to remind the user that
2
sensor with fresh air if the CO level
sensor from high CO levels.
LOW
sensor
2
CO that may be present during start-up.
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PCA3 Manual
1.7. Sales Combo and Mode l Configurations
Sales Combo
(0024-xxxx)
Sales Combo Kit
(0024-xxxx)
8440
8441
8447
8448
8442
8443
8444
8445
8446
8449
8450
8451
8452
8453
Model Type
225
235
245
255
265
275
PCA®3 Only Part Number
(0024-xxxx)
7320 7321 7322 7323 7324 7325 7326
Measurements
Oxygen (O2) • • • • • • •
Stack Temperature • • • • • • •
Primary/Ambient Air Temperature • • • • • • •
Carbon Monoxide Low (CO
) • • • • • • •
LOW
Pressure/Draft • • • • • • •
Carbon Monoxide High (CO
) • •
HIGH
Nitric Oxide (NO) • • • •
Nitrogen Dioxide (NO2) •
Sulfur Dioxide (SO2) • •
Calculations
Combustion Efficiency • • • • • • •
Excess Air • • • • • • •
Carbon Dioxide (CO2) • • • • • • •
NOx (NOx = NO + NO2) •
NOx referenced to % O2 •
CO referenced to % O2 • • • • • • •
NO referenced to % O2 • • • •
NO2 referenced to % O2 •
SO2 referenced to % O2 • •
285
12 0024-9472 Rev 2
hen the measured
oxygen level is below 16.0% and the stack temperature is below
PCA3 Manual
1.8. Specifications
Measurement (Based on Installed Sensors) Display Range
Oxygen 0.1 to 20.9%
Stack Temperature -4 to 2,192 °F (-20 to 1,200 °C)
Primary/Ambient Air Temperature -4 to 999 °F (-20 to 537 °C)
Carbon Monoxide (CO) (H2 compensated) 0 to 4,000 ppm
Pressure/Draft ±72” H2O (±179 mb)
CO High Range 4,001 to 20,000 ppm
Nitric Oxide (NO) 0 to 3,000 ppm
Nitrogen Dioxide (NO2) 0 to 500 ppm
Sulfur Dioxide (SO2) 0 to 5,000 ppm
Calculated Value (Based on Installed Sensors) Display Range
Combustion Efficiency 0.1 to 100%
Excess Air 1 to 250%
Carbon Dioxide (dry basis) 0.1 to fuel-dependent max in %
NOx (NOx = NO + NO2) 0 to 3,500 ppm
NOx referenced to %O2 0 to 9,999 ppm
CO referenced to %O2 0 to 9,999 ppm
NO referenced to %O2 0 to 9,999 ppm
NO2 referenced to %O2 0 to 9,999 ppm
SO2 referenced to %O2 0 t o 9,999 ppm
NOTE: Calculations are performed only w
2,000 °F (1,093 °C).
0024-9472 Rev 2 13
PCA3 Manual
Reading Performance Accuracy
O2
CO
±0.3% O
(mix of O
Greater of ±5% of reading or ±10 ppm, between 0-2,000 ppm,
±10% of reading between 2,001 and 20,000 ppm.
NO Greater of ±5% of reading or 5 ppm
NO2 Greater of ±5% of reading or ±5 ppm between 0-500 ppm
SO2 Greater of ±5% of reading or ±10 ppm between 0-2,000 ppm
±4 °F (±2 °C) between 32 and 255 °F (0 and 124 °C)
Stack Gas Temp
±6 °F between 256 and 480 °F (±3 °C between 125 and 249 °C)
±8 °F between 481 and 752 °F (±4 °C between 250 and 400 °C)
Primary/Ambient
Air Temp
±2 °F between 32 and 212 °F (±1 °C between 0 and 100 °C)
±0.02 inches from -1 to 1 inwc;
Pressure/Draft
±2% of reading from -10 to 10 inwc;
±3% of reading from -40 to 40 inwc
System Flow Rate
with Probe
200 cc/min minimum
General Specification Description
Dimensions (H x W x D) 9.0 x 3.0 x 2.5 inches (22.9 x 7.6 x 6.3 cm)
Weight
Fuels Available for
Combustion Calculations
Warm-up Time 60 seconds (Sensors checked and auto zeroed)
4 “AA” Batteries
Power
(Disposable)
AC Adapter
(Optional)
Operating Temperature
Operating Humidity Analyzer: ...................... 15 to 90% RH, non-condensing
Operating Air Pressure
Memory
Interfaces
14 0024-9472 Rev 2
on practical concentrations of stack gas
2
, CO2, and N2)
2
Analyzer with Batteries: ........................... 1. 4 lb (0.6 kg)
Probe/Hose Assembly: ............................ 1. 0 l b (0.5 kg)
Natural Gas
•
Coal
•
Oil #2
•
Oil #4
•
Oil #6
•
Wood
•
Kerosene
•
Bagasse
•
Propane
•
Digester Gas
•
Alkaline: .............................. 10 hours of operation (min)
NiMH Rechargeable: ................... Operating time varies
100-240 VAC; 50/60 Hz: ....................... Continuous use
Analyzer: ................................ 32 to 104 °F (0 to 40 °C)
Probe Tip: ..................................1,472 °F (800 °C) Max.
Analyzer: ................................................... Atmospheric
Probe: ............... 10″ H2O (25 mb) draft max. at probe tip
500 complete combustion test records
500 complete logged combustion test records
Printer: .......................... Infrared (IrDA) communications
Computer: ........................... USB 2.0 (mini-B connector)
CHAPTER 2. HARDWARE
2.1. Overview
PCA3 Manual
Figure 2-1. Front and Bottom Views Showing Key Components
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PCA3 Manual
The arrow buttons move the cursor on t he LCD. In screens that
◄► buttons to quickly move to the top and bottom of the menu.
2.2. Front Panel Buttons
The PCA®3 is controlled by various buttons, while a color graphic LCD (with
automatic dimming feature) is used to display all combustion and emission test
data and analyzer parameters. Descriptions of the front panel buttons are given
below. Note that a button may perform multiple functions depending on the
current screen that is displayed.
PRINT Transmits the data displayed on the screen to a printer
F1
PAGE- When viewing the Memory or Logging Directory, each
MENU Displays the Main Menu.
ZERO When viewing the Pressure screen, this button zeros the
F2
SAVE Saves the data currently displayed on the LCD in
F3
PAGE+ When viewing the Memory or Logging Directory, each
▲
require the entry of alphanumerical data, use the ◄► buttons to
▼
move cursor across the screen and then use the ▲▼ buttons to
◄
increment and decrement the data. W hen vi ewing a menu, use the
►
Selects a highlighted item. In addition, if c hanges were made to
one of the analyzer’s operating parameters (e.g., date, time, O
ENT
reference, etc.), pressing this button confirms those changes and
saves them in memory.
Starts and stops a combustion test when the Combustion Test
screen is displayed. Pressing this button in any other screen
returns the analyzer to the Combustion Test HOLD screen.
RUN/
HOLD
Pressing this button during the 5 second turn-off-delay period will
abort the turn-off process and also return the analyzer to the
Combustion Test HOLD screen.
Displays a previously viewed screen. In addition, if changes were
made to one of the analyzer’s operating parameters (e.g., date,
ESC
time, O
changes, restores the old values, and then displays the previously
viewed screen.
Turns the analyzer ON and OFF, and is also used to turn the
I/O
keypad LEDs ON and OFF.
through the IrDA communications port.
press of this button pages down through the directory.
Holding this button down speeds up the paging process.
pressure sensor to current atmospheric conditions. When
viewing the Temperature screen, this button zeroes the
temperature channel difference.
memory. Up to 500 individual Combustion Test,
Temperature, and Pressure records can be saved. After
500 records have been saved, the memory must be
cleared to continue saving additional data. The analyzer
will not overwrite old data.
press of this button pages through the directory. Holding
this button speeds the paging process.
reference, etc.), pressing this button aborts those
2
2
16 0024-9472 Rev 2
lit areas. Turn the keypad backlight ON and OFF by briefly
the RUN / HOLD button. Also note that if the
measured emission levels are above predetermined limits at the
and purges the sensor compartment with fresh air until the gas
e analyzer are reduced. If desired, the purging
PCA3 Manual
For example, the functions of the F1, F2, and F3 buttons are defined by labels
appearing above them on the LCD. The labels that appear depend on the
functions that can be performed in the particular screen being displayed.
NOTE: A keypad backlight enables a user to read the keypad in
dimly-
pressing the I/O button.
NOTE: When the analyzer is turned OFF, there is a 5-second
delay, during which time an operator can keep the analyzer turned
ON by pressing
time the i nst rumen t is turn ed OFF , t he pum p is auto mat ica lly st ar ted
levels inside th
process can be aborted by again pressing the I/O button, though it is
not recommended.
2.3. Backlit Display
A large backlit color graphic display shows multiple combustion test values
simultaneously, and includes a zoom capability that provides extra large text.
Figure 2-2. Sample Display
2.4. Battery Compartment
The PCA®3 is powered by either its four internal batteries or by an optional AC
power adapter that operates from any convenient source of 100–240 VAC, 50/60
Hz power. Batteries may be either disposable alkaline or rechargeable NiMH.
2.5. AC Adapter Connector (POWER)
The AC power adapter P/N 0024-1254 can be used as an external power supply,
which will run the analyzer on a continuous basis. It uses 100-240 VAC at
50/60 Hz.
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PCA3 Manual
Figure 2-3. Battery Compartment
Figure 2-4. Bottom View Showing Connectors
2.6. Probe Connectors (Gas, Pressure, T-Stack)
The probe and hose assembly are connected to the analyzer by way of the
following connectors.
• Stack-gas thermocouple to the analyzer’s T-STACK connector
• Stack-gas hose to the analyzer’s GAS connector
• Draft hose to the analyzer’s +∆P connector
Observe that the probe connectors are of different sizes and shapes, which
prevents incorrect connection to their associated connectors on the analyzer.
See Figure 2-5.
18 0024-9472 Rev 2
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