Bacharach | PCA2 | Specifications | Bacharach PCA2 Specifications

Portable Combustion Analyzer
Instruction 24-9448
Operation & Maintenance
Rev. 4 - July 2009
Product Leadership • Training • Service • Reliability
WARRANTY
Bacharach, Inc. warrants to Buyer that at the time of delivery this 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 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 manufac­ture 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 two (2) years after the date of delivery of this Product by Bacharach, Inc.
The Oxygen (O2) sensor has a limited warranty of one (1) year. Routine service and calibration are excluded
from this warranty.
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 Bacha­rach,
to the 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.
Register Your Warranty by Visiting
www.bacharach-inc.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 © 2006, Bacharach, Inc., all rights reserved.
BACHARACH is a registered trademark of Bacharach, Inc. All other trademarks,
trade names, service marks and logos referenced herein belong to their respective companies.
A
Instruction 24-9448
Contents
Contents
1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.1
1.2
1.3
1.4
1.5
PCA 2 General Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Sales Combo & Model Configurations. . . . . . . . . . . . . . . . . . . . . . 1-2
Features & Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Operational Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Connector Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
1.5.1 Probe Connections (Gas, Pressure, T-Stack). . . . . . . . . . . . 1-6
1.5.2 T-AIR (Primary Air Thermocouple). . . . . . . . . . . . . . . . . . . 1-6
1.5.3 POWER (AC Adapter) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
1.5.4 ∆P (Differential Pressure) . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
1.5.5 USB (Computer Interface) . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
1.5.6 IrDA (Printer Interface). . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
1.5.7 OPT (Option). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
1.6 Front Panel Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
2 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
3 Initial Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.2 Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.2.1 Installing or Replacing Batteries. . . . . . . . . . . . . . . . . . . . . 3-1
3.2.2 Using the AC Power Adapter. . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.3 Connecting the Probe and Hose Assembly. . . . . . . . . . . . . . . . . . . 3-2
3.4 Operating Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3.5 Fuel Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3.6 Temperature Units Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
3.7 Pressure Units Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
3.8 Pollution Units Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
3.9 Date Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
3.10 Time Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
3.11 O2 Reference Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
3.12 Print Pressure Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
3.13 Zoom-Display Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
3.14 Battery Charger Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
3.15 Logging Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
3.16 Button Sound. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
3.17 Test ID Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-15
3.18 Username. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-17
3.19 Language. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
3.20 Cal Reminder Period. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-20
3.21 Run/Hold Screen Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21
Instruction 24-9448
Contents
4 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.1 Operating Tips. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4.2 Turning ON the Analyzer and Warm Up . . . . . . . . . . . . . . . . . . . 4-2
4.3 Selecting a Fuel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
4.4 Sampling Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
4.5 Performing a Combustion Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
4.6 Pressure Label Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
4.7 Temperature Measurement Label . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
4.8 Making a Draft / Pressure Measurement . . . . . . . . . . . . . . . . . . . 4-9
4.9 Saving Test Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
4.10 Ending a Combustion Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
4.11 Emptying the Water Trap. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
4.12 Turning OFF the Analyzer & Purging . . . . . . . . . . . . . . . . . . . 4-12
4.13 Low Battery Alarm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
4.14 Data Logging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13
4.14.1 Turning ON Data Logging. . . . . . . . . . . . . . . . . . . . . . . . 4-14
4.14.2 Setting the Logging Interval and Duration. . . . . . . . . . . 4-15
4.14.3 Starting the Data Logging Process. . . . . . . . . . . . . . . . . 4-16
4.14.4 Ending the Data Logging Process. . . . . . . . . . . . . . . . . . 4-17
4.15 Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
4.15.1 Recalling Combustion Test Data. . . . . . . . . . . . . . . . . . . 4-18
4.15.2 Recalling Logged Test Data. . . . . . . . . . . . . . . . . . . . . . . 4-19
4.15.3 Clearing Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20
4.16 Downloading Stored Data to a Computer. . . . . . . . . . . . . . . . . . 4-21
4.16.1 PCA 2 Data Recovery Program Installation. . . . . . . . . . 4-22
4.16.2 Computer to PCA 2 Connection & USB Device
Driver Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24
4.16.3 Recovering Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-26
4.17 Importing Saved Data Into a Spreadsheet. . . . . . . . . . . . . . . . . . 4-29
4.18 Printing Test Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
5 Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5.1 Smart Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5.2 Starting a Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
5.3 Pressure Sensor Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
5.4 T-Stack Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
5.5 T-Air Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
5.6 CO-LO Sensor Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
5.7 SO2 Sensor Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
5.8 NO Sensor Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
5.9 NO2 Sensor Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12
5.10 CO-HI Sensor Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
ii
Instruction 24-9448
Contents
6 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
6.1 PCA 2 Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
6.2 Water Trap / Filter Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
6.2.1 Emptying the Water Trap Chamber . . . . . . . . . . . . . . . . . . 6-6
6.2.2 Replacing the Filter Element. . . . . . . . . . . . . . . . . . . . . . . . 6-6
6.3 Smart Sensor Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
6.4 Sensor Only Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8
6.5 Nitric Oxide Sensor Battery Replacement. . . . . . . . . . . . . . . . . . 6-10
6.6 Thermocouple Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11
6.7 Pump Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13
6.8 Cleaning the Probe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14
7 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
7.1
7.2
7.3
7.4
Analyzer Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Error Symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Error Messages Displayed After Warm-Up. . . . . . . . . . . . . . . . . . 7-2
Diagnostics and Status Screens. . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
8 Parts & Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
8.1 Replacement Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
8.2 Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4
8.3 Service Centers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
Instruction 24-9448
iii
Contents
Notes:
iv
Instruction 24-9448
Introduction
1 Introduction
1.1 PCA 2 General Description
The PCA 2 is a commercial-grade hand-held combustion and emissions
analyzer designed for on-demand sampling of light industrial, institutional, commercial and residential furnaces, appliances, and boilers. The
basic instrument is supplied with a probe and hose assembly, instruction
manual, factory calibrated smart sensors, 4 'AA' alkaline batteries, Data
Download Software with USB cable and carrying case.
Because of the PCA 2’s ability to measure up to four gases simultaneously,
it is the perfect tool for service technicians, inspectors and boiler contractors who need to determine combustion efficiency, excess air, stack gas O2
and CO levels, stack temperature, draft, and differential pressure. 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 the following fuels: natural gas, oil #2, oil #4, oil #6,
propane, coal, wood, kerosene, bagasse, and digester gas. A large backlit
graphical display shows up to eight combustion test values simultaneously,
and includes a zoom capability that provides an extra large display.
Smart sensor technology allows a new sensor to be installed in the field
without having to calibrate the analyzer before use. New and innovative
probe and analyzer designs allow the PCA 2 to be easily serviced, thus
lowering the cost of ownership.
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.
An optional AC power adapter allows the analyzer to run continuously for
data logging purposes.
The optional sample conditioning probe is recommended when measuring
NO2 and SO2 to ensure the highest degree of measurement accuracy.
Instruction 24-9448
1-1
Introduction
1.2 Sales Combo & Model Configurations
Sales Combo
24-8350
24-8351
24-8352
Sales Combo (Kit)
24-8370
24-8371
24-8372
225
235
245
24-7301
24-7302
24-7303
3
3
3
Stack Temperature
3
3
3
Primary / Ambient Air Temperature
3
3
3
Carbon Monoxide Low (COLow)
3
3
3
Pressure / Draft
3
3
3
Model Type
PCA2 Only Part Number
Oxygen (O2)
Measurements
Carbon Monoxide High (COHigh)
3
Nitric Oxide (NO)
3
Nitrogen Dioxide (NO2)
Sulfur Dioxide (SO2)
Combustion Efficiency
Calculations
3
3
3
Excess Air
3
3
3
Carbon Dioxide (CO2)
3
3
3
3
3
3
NOx (NOx = NO + NO2)
NOx referenced to %O2
CO referenced to %O2
NO referenced to %O2
3
NO2 referenced to %O2
SO2 referenced to %O2
Refer to Section 8.2 for a listing of standard and optional accessories.
1-2
Instruction 24-9448
Introduction
Sales Combo
24-8353
24-8354
24-8355
Sales Combo (Kit)
24-8373
24-8374
24-8375
Model Type
255
265
275
24-7304
24-7305
24-7306
3
3
3
Stack Temperature
3
3
3
Primary / Ambient Air Temperature
3
3
3
Carbon Monoxide Low (COLow)
3
3
3
Pressure / Draft
3
3
3
Nitric Oxide (NO)
3
3
Nitrogen Dioxide (NO2)
3
PCA2 Only Part Number
Oxygen (O2)
Measurements
Carbon Monoxide High (COHigh)
Sulfur Dioxide (SO2)
Combustion Efficiency
3
3
Calculations
3
3
3
Excess Air
3
3
3
Carbon Dioxide (CO2)
3
3
3
NOx (NOx = NO + NO2)
3
NOx referenced to %O2
3
CO referenced to %O2
3
3
NO referenced to %O2
3
3
NO2 referenced to %O2
3
SO2 referenced to %O2
Instruction 24-9448
3
3
3
1-3
Introduction
1.3 Features & Benefits
•Powered by 4 ‘AA’ alkaline batteries, or NiMH rechargeable batteries.
An optional AC power adapter provides continuous operation.
•Internal charging circuit allows rechargeable batteries to be charged
inside the analyzer with the use of the optional AC power adapter.
•O2 and COLow measurement standard. Optional measurement of up to
two additional gases: COHigh, NO, NO2, or SO2.
•With the appropriate sensors installed, the analyzer optionally displays pollution conversions for CO, NO, NO2, and SO2. Pollution conversions include ppm, #/MBTU, mg/m3, and g/GJ.
•Smart sensor technology allows pre-calibrated sensors to be installed
in the field.
•Automatic zero of all sensing channels on ambient air when the analyzer is first turned ON.
•Automatic flushing of the COLow sensor with fresh air if the CO level
exceeds 4,000 ppm, thus protecting the COLow sensor from high CO
levels. To measure CO levels above 4,000 ppm, the analyzer automatically switches to its COHigh sensor, if installed.
•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 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 used for printing current and stored combustion
records, pressure records, sensor calibration data, and diagnostic data.
•USB connectivity for downloading stored data to a personal computer.
•Field replaceable sensors and thermocouple.
•Two year warranty on analyzer and all gas sensors except the O2 sensor which has a one (1) year warranty.
1-4
Instruction 24-9448
Introduction
•Language options including English, French, and Spanish
•Custom Display Formats
•Calibration Reminders - PCA2 can be set up to remind the user that
calibration is past due.
1.4 Operational Overview
The PCA 2 is powered by either its 4 internal batteries, or by an optional
AC power adapter that operates from any convenient source of 100–
240 VAC, 50/60 Hz power. The type of batteries used can be either disposable alkaline or rechargeable NiMH. Note that rechargeable batteries can
be charged inside the analyzer using the optional AC power adapter.
The PCA 2 is controlled by 11 front panel push buttons, while a graphical
LCD is used to display all combustion and emission test data and analyzer
parameters.
A probe and hose assembly, with an integral thermocouple and filter/water-trap connect to the bottom of the analyzer, thus providing the means of
drawing in gas samples, and for measuring stack temperature and draft.
The PCA 2 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 “ERRORS ­DETECTED” is displayed 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 display. To change the fuel: first, press the
MENU (F2) button; next, select FUEL from the menu; then use the
buttons to highlight the fuel being burned; and finally, press the green ENT
button to select the highlighted fuel.
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 TAIR thermocouple be used. This thermocouple plugs into the bottom of the
Instruction 24-9448
1-5
Introduction
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, %O2 and
emission levels in the stack gas and then display measured and calculated
values on its LCD. Values are listed in Section 2 Specifications.
During a test, the COLow sensor is protected from high CO levels by being
automatically flushed with fresh air when the detected CO level exceeds
4,000 ppm. The analyzer will automatically start using its optional COHigh sensor, if installed, at CO levels starting at 4,001 ppm, thus providing
continuous CO readings up to 20,000 ppm.
A backlight enables a user to read the display in dimly-lit areas. Turn the
backlight ON and OFF by briefly pressing the I/O button.
The analyzer is turned OFF by pressing and holding down the I/O button
for at least 2 seconds. Note that there 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 predetermined levels.
1.5 Connector Descriptions
1.5.1 Probe Connections (Gas, Pressure, T-Stack)
Attach the probe and hose assembly to the analyzer by connecting its . . .
•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
prevent incorrect connection to their associated connectors on the analyzer.
1-6
Instruction 24-9448
Introduction
IrDA – Wireless printer
communications port
LCD – 160 x 160
graphic display
ENT:
F1 / F2 / F3 –
Soft Menu Buttons,
whose functions are
defined by labels
appearing above them
on LCD
• Selects a highlighted
menu item, or confirms the
entry of data
USB – Computer
communications
connector
RUN / HOLD:
• Starts and stops a combustion
efficiency test
Arrow Buttons:
• Pressing this button during
the 5 second turn-off period will
keep the analyzer turned ON
– Moves cursor
up the display,
or increments an
alphanumerical value
ESC – Displays previous menu
or previously viewed screen
– Moves cursor
down the display,
or decrements an
alphanumerical value
I/O – Press from between
1 and 2 seconds to turn
analyzer ON and OFF
– Moves cursor left,
or moves to top of
menu list
– With analyzer turned
ON, press briefly to turn
backlight ON and OFF
– Moves cursor right,
or moves to bottom of
menu list
OPT – Option external
measurement connector
T-STACK – Probe’s stack-gas
thermocouple connector
POWER – AC power adapter
connector
T-STACK
T-AIR
T-AIR – Primary /
ambient air thermo­
couple connector
GAS – Probe’s gas
hose connector
“–∆P” Reference
pressure hose fitting
“+∆P” Probe’s draft
hose fitting
Figure 1-1. PCA 2 Components
Instruction 24-9448
1-7
Introduction
1.5.2 T-AIR (Primary Air Thermocouple)
If thermocouple P/N 104-1797 (10 feet long) or Utility Wand P/N 104-1799
(12 inch ridged probe with handle and 5 foot coiled cable) is to be used
to measure the burner’s primary air temperature, then connect either of
these thermocouples to the analyzer’s T-AIR connector.
1.5.3 POWER (AC Adapter)
The AC power adapter P/N 24-1404 can be used as an external power supply, which will run the analyzer on a continuous basis.
When using rechargeable NiMH batteries, the AC power adapter can also
be used to charge the batteries while inside the analyzer. The analyzer’s
rapid-charger circuit, however, must first be turned ON per Section 3.16.
The rapid charger will charge a set of depleted batteries in approximately
2 - 3 hours.
When disposable alkaline batteries are used, the analyzer’s battery charger circuit must be OFF to prevent the batteries from overheating. As a
precaution, the charger circuit is automatically toggled back to its OFF
state when the analyzer is turned OFF.
1.5.4 ∆P (Differential Pressure)
Draft is measured by connecting the probe’s draft hose to the +∆P fitting,
while leaving the –∆P fitting open to the atmosphere.
In addition to measuring draft, the “+” and “–” ∆P fittings can also be used
to measure the differential pressure between two areas by first connecting
a hose P/N 24-1103 to the –∆P fitting, and then inserting the open end of
this hose into the area being used as the reference pressure. The analyzer’s
probe is then inserted into the area where differential pressure is to be
measured. Refer to Section 4.6.
1.5.5 USB (Computer Interface)
Data that has been stored in the analyzer’s memory can be downloaded to
a personal computer by connecting USB data cable P/N 104-4032 between
the USB ports of the computer and analyzer. Refer to Section 4.14.2.
1.5.6 IrDA (Printer Interface)
Data that has been stored in the analyzer’s memory can be printed on a
1-8
Instruction 24-9448
Introduction
compatible IrDA wireless printer by aligning their IrDA communication
ports. Refer to Section 4.16.
1.5.7 OPT (Option)
The option connector is used for optional external measurement features.
1.6 Front Panel Buttons
Descriptions of the front panel buttons are given below. Note that a control
may perform multiple functions as determined by what screen is being
displayed at the time.
The functions of these 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.
PRINT (F1): Transmits the data displayed on the screen
to a printer through the IrDA communications port.
Menu (F2): Displays the Main Menu.
SAVE (F3): Saves the data currently displayed on the
LCD in memory. Up to 500 individual Combustion Test
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.
ZERO (F2): When viewing the Pressure screen, this
button zeros the pressure sensor to current atmospheric
conditions. When viewing the Temperature screen, this
button zeroes the temperature channel difference.
PAGE– (F1): When viewing the Memory or Logging
­Directory, each press of this button pages down through
the directory. Holding this button down speeds up the
paging process.
PAGE+ (F3): When viewing the Memory or Logging
­Directory, each press of this button pages up through
the directory. Holding this button down speeds up the
paging process.
Instruction 24-9448
1-9
Introduction
The arrow buttons move the cursor on the LCD in the direction of the arrow. In screens that 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. When viewing a menu, use
the
buttons to quickly move to the top and bottom of
the menu.
Selects a highlighted menu. In addition, if changes were
made to one of the analyzer’s operating parameters (e.g.,
date, time, O2 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. 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, time, O2 reference, etc.), pressing
this button aborts those 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 backlight and button LEDs ON and OFF.
Note that 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 the RUN / HOLD
button. Also note that if the measured emission levels
are above predetermined limits at the time the instrument is turned OFF, the pump is automatically started
and purges the sensor compartment with fresh air until
the gas levels inside the analyzer are reduced. If desired,
the purging process can be aborted by again pressing the
I/O button.
1-10
Instruction 24-9448
Specifications
2 Specifications
The PCA 2 Directly Measures and Displays:
The gases displayed depend on the analyzer’s model number.
Refer to Section 1.2.
Oxygen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 20.9%
Stack Temperature. . . . . . . . . . . . . . . . . . . . . –4 to 2,192 ºF (–20 to 1,200 ºC)
Primary / Ambient Air Temperature . . . . . . . . . –4 to 999 ºF (–20 to 537 ºC)
Carbon Monoxide (CO) (H2 compensated). . . . . . . . . . . . . . . . 0 to 4,000 ppm
Pressure / Draft. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±72 "H2O (±180 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
The PCA 2 Calculates and Displays:
Calculations are performed only when the measured oxygen level is below
16.0%, and the stack temperature is below 2,000 °F (1,093 ºC).
Combustion Efficiency. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.1 to 100%
Excess Air. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 to 250%
Carbon Dioxide (dry basis). . . . . . . . . . 0.1 to fuel dependent maximum 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 reference to %O2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 9,999 ppm
NO2 reference to %O2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 9,999 ppm
SO2 reference to %O2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 9,999 ppm
Fuels Available for Combustion Calculations:
•Natural Gas
•Oil #2
•Oil #4
•Oil #6
•Propane
Instruction 24-9448
•Coal
•Wood
•Kerosene
•Bagasse
•Digester Gas
2-1
Specifications
Normal Operating Conditions:
Temperature:
Analyzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 to 104 ºF (0 to 40 ºC)
Probe Tip. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1,472 ºF (800 ºC) Max.
Humidity:
Analyzer . . . . . . . . . . . . . . 15 to 90% Relative Humidity, non-condensing
Air Pressure:
Analyzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Atmospheric
Probe. . . . . . . . . . . . . . . . . . . . . . 10" H2O (25 mb) draft max. at probe tip
Performance:
Accuracy:
O2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±0.3% O2 on practical concentrations
of stack gas (mix of O2, CO2 and N2)
CO . . . . . . . . . . . . . . . . . . . . . . . . . . . ±5% of reading or ±10 ppm,
whichever is greater between
0–2,000 ppm, and ±10% of reading
between 2,001–20,000 ppm.
NO. . . . . . . . . . . . . . . . . . . . . . . . . . . ±5% of reading or ±5 ppm,
whichever is greater between
0–2,000 ppm
NO2 . . . . . . . . . . . . . . . . . . . . . . . . . . ±5% of reading or ±5 ppm,
whichever is greater between
0–500 ppm
SO2 . . . . . . . . . . . . . . . . . . . . . . . . . . ±5% of reading or ±10 ppm,
whichever is greater between
0–2,000 ppm
Stack Gas Temp.. . . . . . . . . . . . . . . . ±4 ºF between 32 and 255 ºF
(±2 ºC between 0 and 124 ºC)
±6 ºF between 256 and 480 ºF
(±3 ºC between 125 and 249 ºC)
±8 ºF between 481 and 752 ºF
(±4 °C between 250 and 400 °C)
Primary / Ambient Air Temp.. . . . . . ±2 ºF between 32 and 212 ºF
(±1 °C between 0 and 100 °C)
Pressure / Draft. . . . . . . . . . . . . . . . . ±2% of reading or ±0.02 "H2O
(±0.05 mb), whichever is greater
System Flow Rate with Probe. . . . . . . . 200 cc/min minimum
2-2
Instruction 24-9448
Specifications
Power Requirements:
Four disposable ‘AA’ alkaline batteries provide at least 15 hours of continuous operation. NiMH rechargeable batteries can also be used, with the
operating time dependent on battery type and condition.
An optional AC power adapter, which runs from any convenient source of
100–240 VAC, 50/60 Hz power, can be used to power the analyzer on a continuous basis. If using rechargeable batteries, the AC power adapter can also
be used to charge the batteries while inside the analyzer.
Warm-Up Time:
60 seconds. Sensors are checked and auto zeroed during warm-up.
Memory:
• 500 complete combustion test records
• 500 complete logged combustion test records
Interfaces:
• Printer – Infrared (IrDA) communications
• Computer – USB
Dimensions:
9H x 3W x 2.5D inches (22.9 x 7.6 x 6.3 cm)
Weight:
• Analyzer – 1.4 lb (0.6 kg) w/ batteries
• Probe & Hose Assembly – 1 lb (0.5 kg)
Instruction 24-9448
2-3
Specifications
Notes:
2-4
Instruction 24-9448
Initial Setup
3 Initial Setup
3.1 Scope
Before using the PCA 2, you MUST:
•Install batteries, or plug in the optional AC power adapter (Section 3.2)
•Connect the probe and hose assembly (Section 3.3)
•Check, and if necessary, make changes to the analyzer’s configuration
(Section 3.4)
3.2 Power
3.2.1 Installing or Replacing Batteries
Either alkaline or NiMH rechargeable batteries can used to power the analyzer. Note that if rechargeable batteries are used, they can be recharged
while installed inside the analyzer using the optional AC power adapter
(refer to Section 3.2.2).
Install or replace the batteries as described below:
1. Remove battery cover from back of unit (Figure 3-1.)
2. Remove (and properly dispose of) any old batteries.
3. Install a set of four ‘AA’ alkaline or NiMH batteries, per the “+” and
“–” markings inside the battery compartment.
4. Replace battery cover.
Release and then
remove battery cover
by pushing latch up
Figure 3-1. Installing Batteries
Instruction 24-9448
3-1
Initial Setup
3.2.2 Using the AC Power Adapter
The AC power adapter is capable of powering the analyzer on a continuous
basis. The adapter plugs into an appropriate 100–240 VAC, 50/60 Hz wall
outlet, and produces an output of +9 VDC. The adapter’s output connector
plugs into the analyzer’s POWER jack located on the bottom of the unit
(Figure 3-2).
If NiMH rechargeable batteries are used, the adapter can also rapid
charge these batteries in approximately 2 - 3 hours while still inside the
analyzer. For the batteries to be charged, however, the analyzer’s battery
charger circuit must be turned ON per Section 3.16.
3.3 Connecting the Probe and Hose Assembly
Do the following to attach the probe and hose assembly to the analyzer
(Figure 3-2):
1. Push the gas-sample hose connector, the larger of the two connectors (giving a slight twist), onto the analyzer’s GAS fitting.
2. Push the draft-hose connector, the smaller connector (giving a slight
twist), onto the analyzer’s +∆P fitting.
3. Push the stack-gas thermocouple connector into the T-STACK jack (connector fits in only one way).
NOTE: The analyzer has a built-in temperature sensor for
measuring ambient temperature. Perform Step 4 only if the
optional primary / ambient air thermocouple is used.
4. Push the optional primary / ambient air thermocouple into the T-AIR
jack (connector fits in only one way).
IMPORTANT: To assure the accurate calculation of combustion
efficiency, the optional primary / ambient air thermocouple
must be used when the burner’s primary-air temperature is not
the same as the room temperature.
5. Inspect all hoses for cracks. If any hose is found to be defective, replace the entire probe and hose assembly. Check that the water trap is
empty, and that the filter is not dirty or saturated with water.
3-2
Instruction 24-9448
Initial Setup
Option
Connector
(Optional External
Measurement)
POWER
AC Power
Adapter Jack
(POWER)
T-STACK
Primary /
Ambient Air
Thermocouple
(T-AIR) (Optional)
T-AIR
GAS
P
Differential
Pressure Hose
(— ∆P) (Optional)
Stack Gas
Thermocouple
Connector
(T-STACK)
Draft
Hose
(+ ∆P)
Gas Sample
Hose
(GAS)
Probe Tube
Probe Stop
Water Trap /
Filter Assembly
Probe
Handle
Figure 3-2. Connecting the Probe and Hose Assembly to the PCA 2
Instruction 24-9448
3-3
Initial Setup
3.4 Operating Parameters
The PCA 2 is set up at the factory for the following operating parameters:
Fuel. . . . . . . . . . . . . . . . . . . . . Natural Gas
Temperature Units. . . . . . . . . °F
Pressure Units. . . . . . . . . . . . Inches of Water Column (inwc)
Pollution Units. . . . . . . . . . . . ppm
Date. . . . . . . . . . . . . . . . . . . . . Current MM/DD/YY
Time . . . . . . . . . . . . . . . . . . . . Current EST HH:MM AM/PM
O2 Reference. . . . . . . . . . . . . . 0%
Print Pressure. . . . . . . . . . . . No
Zoom. . . . . . . . . . . . . . . . . . . . No
Battery Charger. . . . . . . . . . . OFF
Logging. . . . . . . . . . . . . . . . . . No
Button Sound. . . . . . . . . . . . . ON
To change any of these parameters, perform the associated procedure provided in Sections 3.5 thru 3.22.
3.5 Fuel Selection
To assure the accurate calculation of combustion
efficiency, select the fuel being burned as follows:
1. Display the MAIN MENU by pressing the
MENU (F2) button. If necessary, press ESC
until MENU appears above F2.
2. Use the
buttons to highlight FUEL, and
then press ENT to display the FUEL MENU.
3. Use the
buttons to scroll through the list of
available fuels until the desired fuel is highlighted. In the example shown, ­PROPANE
has been selected. (If custom fuels are added,
they will be displayed at the bottom of the
list)
TIP: Use the
buttons to quickly scroll to the
bottom and top of the list.
4. Press ENT to save the selection and display
the ­Combustion Test HOLD screen. Observe
MAIN MENU
FUEL
PRESSURE
TEMPERATURE
MEMORY
SETUP
CALIBRATION
DIAGNOSTICS
STATUS
MENU
F1
F2
F3
FUEL MENU
NATURAL GAS
OIL #2
OIL #4
OIL #6
PROPANE
COAL
WOOD
(more)
MENU
F1
F2
F3
Instruction 24-9448
Initial Setup
that the name of the selected fuel should now appear at the
top of the screen.
Note: In addition to the standard fuels programmed into the
PCA2, Bacharach can develop custom fuel codes based on the
customers specific needs. The PCA2 can be programmed with
2 additional fuels which can be added to the instrument using
the PC based software provided. Consult factory for price and
delivery.
3.6 Temperature Units Selection
Select to display temperature in either °F or °C
as follows:
1. Display the MAIN MENU by pressing the
MENU (F2) button. If necessary, press ESC
until MENU appears above F2.
2. Use the
buttons to highlight SETUP, and
then press ENT to display the SETUP MENU.
3. Use the
buttons to highlight TEMP
UNITS, and then press ENT to display the
TEMP UNITS MENU.
4. Use the
buttons to highlight the desired
temperature units. In the example shown,
Fahrenheit has been selected.
5. Press ENT to save the selection and re-display
the ­SETUP MENU.
MAIN MENU
FUEL
PRESSURE
TEMPERATURE
MEMORY
SETUP
CALIBRATION
DIAGNOSTICS
STATUS
MENU
F1
F2
F3
SETUP MENU
TEMP UNITS
PRESSURE UNITS
POLLUTION UNITS
DATE
TIME
O2 REFERENCE
PRINT PRESSURE
(more)
MENU
F1
F2
F3
TEMP UNITS MENU
Celsius
Fahrenheit
05/26/06 09:25:30 AM
MENU
F1
Instruction 24-9448
F2
F3
Initial Setup
3.7 Pressure Units Selection
Select to display pressure in Inches of Water Column (inwc), ­millibar (mb),
Pascals (Pa), or hectoPascals (hPa) as follows:
MAIN MENU
1. Display the MAIN MENU by pressing the
MENU (F2) button. If necessary, press ESC
until MENU appears above F2.
FUEL
PRESSURE
TEMPERATURE
MEMORY
SETUP
2.Use the
buttons to highlight SETUP, and
then press ENT to display the SETUP MENU.
3.Use the
buttons to highlight PRESSURE
UNITS, and then press ENT to display the
PRESSURE UNITS MENU.
4.Use the
buttons to highlight the desired pressure units. In the example shown,
InchesWater has been selected.
CALIBRATION
DIAGNOSTICS
STATUS
MENU
F1
F2
F3
SETUP MENU
TEMP UNITS
PRESSURE UNITS
POLLUTION UNITS
DATE
5.Press ENT to save the selection and ­re-display
the ­SETUP MENU.
TIME
O2 REFERENCE
PRINT PRESSURE
(more)
MENU
F1
F2
F3
PRESSURE UNITS MENU
InchesWater
milliBar
Pascals
hectoPascals
05/26/06 09:25:30 AM
MENU
F1
F2
F3
Instruction 24-9448
Initial Setup
3.8 Pollution Units Selection
The PCA 2 is capable of converting the measured ppm levels of CO, NO,
NO2, and SO2 to various pollution units using CFR40 Part 60 emission
factors. Note that the pollution-unit conversions for NO, NO2 and NOx are
based on the molecular weight of NO2.
Select to display pollution units in parts per million (ppm), pounds of pollutant per million BTU (#/Mbtu), milligrams of pollutant per cubic meter
of gas (mg/m3), or grams of pollutant per gigajoule (g/GJ) as follows:
MAIN MENU
1. Display the MAIN MENU by pressing the
MENU (F2) button. If necessary, press ESC
until MENU appears above F2.
2. Use the
buttons to highlight SETUP, and
then press ENT to display the SETUP MENU.
3. Use the
buttons to highlight POLLUTION
UNITS, and then press ENT to display the
POLLUTION UNITS MENU.
4. Use the
buttons to highlight the desired
pollution units. In the example shown, ppm
has been selected.
5. Press ENT to save the selection and re-display
the ­SETUP MENU.
FUEL
PRESSURE
TEMPERATURE
MEMORY
SETUP
CALIBRATION
DIAGNOSTICS
STATUS
MENU
F1
F2
F3
SETUP MENU
TEMP UNITS
PRESSURE UNITS
POLLUTION UNITS
DATE
TIME
O2 REFERENCE
PRINT PRESSURE
(more)
MENU
F1
F2
F3
POLLUTION UNITS MENU
ppm
#/Mbtu
mg/m3
g/GJ
05/26/06 09:25:30 AM
MENU
F1
Instruction 24-9448
F2
F3
Initial Setup
3.9 Date Setup
The date is stored in the format: MM/DD/YY. Its
value is part of the date and time stamp that is
saved along with each combustion test record.
Set the analyzer’s internal clock to the current
date as follows:
1. Display the MAIN MENU by pressing the
MENU (F2) button. If necessary, press ESC
until MENU appears above F2.
2. Use the
buttons to highlight SETUP,
and then press ENT to display the SETUP
MENU.
3. Use the
buttons to highlight DATE, and
then press ENT to display the DATE MENU.
4. First use the
buttons to move the cursor
across the screen until it is over the digit to
be changed, and then press the
buttons
until the desired value is displayed.
5. Repeat Step 4 until the values for month, day,
and year have been set.
6. Press ENT to save the displayed date values
and re-display the ­SETUP MENU, or press
ESC to abort this procedure and retain the
old date values.
MAIN MENU
FUEL
PRESSURE
TEMPERATURE
MEMORY
SETUP
CALIBRATION
DIAGNOSTICS
STATUS
MENU
F1
F2
F3
SETUP MENU
TEMP UNITS
PRESSURE UNITS
POLLUTION UNITS
DATE
TIME
O2 REFERENCE
PRINT PRESSURE
(more)
MENU
F1
F2
F3
DATE MENU
DATE
05/26/06
Press ENTER to Save
05/26/06 09:25:30 AM
MENU
F1
F2
F3
Note: The Date and Time real time clock is powered by the main batteries and is maintained by a supercap on the Main PCB for approximately 1-2 days in the absence of batteries. The supercap is intended
to maintain the real time clock when the batteries are changed when
exhausted. If the batteries are removed for extended periods of time
such as when the PCA2 is not in use (off-season storage), simply reset
the time and date after fresh batteries are installed when it is placed
back in service.
Instruction 24-9448
Initial Setup
3.10 Time Setup
The time is stored in the format: hh:mm:ss AM/
PM. Its value is part of the date and time stamp
that is saved along with each combustion test record.
Set the analyzer’s internal clock to the current
time as follows:
1. Display the MAIN MENU by pressing the
MENU (F2) button. If necessary, press ESC
until MENU appears above F2.
2. Use the
buttons to highlight SETUP,
and then press ENT to display the SETUP
MENU.
3. Use the
buttons to highlight TIME, and
then press ENT to display the TIME MENU.
4. First use the
buttons to move the cursor
across the screen until it is over the digit to
be changed, and then press the
buttons
until the desired value is displayed.
5. Repeat Step 4 until the values for hour, minute, and meridiem have been set.
NOTE: The value for seconds cannot be entered, but are displayed and stored as part of
the combustion test record.
6. Press ENT to save the displayed time values
and re-display the ­SETUP MENU, or press
ESC to abort this procedure and retain the old
time values.
Instruction 24-9448
MAIN MENU
FUEL
PRESSURE
TEMPERATURE
MEMORY
SETUP
CALIBRATION
DIAGNOSTICS
STATUS
MENU
F1
F2
F3
SETUP MENU
TEMP UNITS
PRESSURE UNITS
POLLUTION UNITS
DATE
TIME
O2 REFERENCE
PRINT PRESSURE
(more)
MENU
F1
F2
F3
TIME MENU
TIME
09:25 AM
Press ENTER to Save
05/26/06 09:25:30 AM
MENU
F1
F2
F3
Initial Setup
3.11 O2 Reference Setup
The measured values of CO, NOx, and SO2 can be
individually referenced to a specific O2 percentage
of between 0 and 15%.
Individually set up the O2 reference value for each
of the above gases as ­follows:
1. Display the MAIN MENU by pressing the
MENU (F2) button. If necessary, press ESC
until MENU appears above F2.
2. Use the
buttons to highlight SETUP, and
then press ENT to display the SETUP MENU.
3. Use the
buttons to highlight O2 REF, and
then press ENT to display the O2 REFERENCE screen.
4. Use the
buttons to highlight the desired
measurement, and then press ENT to display
the REF TO O2 screen for that measurement.
In the example shown, CO has been selected.
5. First use the
buttons to move the cursor
across the screen until it is over the digit to
be changed, and then press the
buttons
until the desired value is displayed.
6. Press ENT to save the displayed value and redisplay the O2 REFERENCE screen, or press
ESC to abort this procedure and retain the
old O2 reference value.
7. If the O2 reference value for more than one gas
is being set, then repeat Steps 4, 5, and 6 for
each measurement.
MAIN MENU
FUEL
PRESSURE
TEMPERATURE
MEMORY
SETUP
CALIBRATION
DIAGNOSTICS
STATUS
MENU
F1
F2
F3
SETUP MENU
TEMP UNITS
PRESSURE UNITS
POLLUTION UNITS
DATE
TIME
O2 REFERENCE
PRINT PRESSURE
(more)
MENU
F1
F2
F3
O2 REFERENCE
CO Ref to O2
NOx Ref to O2
SO2 Ref to O2
05/26/06 09:25:30 AM
MENU
F1
F2
F3
SET O2 REFERENCE
CO REF TO O2: 0
05/26/06 09:25:30 AM
MENU
F1
10
F2
F3
Instruction 24-9448
Initial Setup
3.12 Print Pressure Selection
Select whether to print or not print the pressure
measurement on the combustion test printout as
follows:
1. Display the MAIN MENU by pressing the
MENU (F2) button. If necessary, press ESC
until MENU appears above F2.
2. Use the
buttons to highlight SETUP, and
then press ENT to display the SETUP MENU.
3. Use the
buttons to highlight PRINT PRESSURE, and then press ENT to display the
PRINT PRESSURE screen.
4. Use the
buttons to highlight either No (do
not print pressure) or Yes (print pressure). In
the example shown, Yes has been selected.
5. Press ENT to save the selection and re-display
the ­SETUP MENU.
MAIN MENU
FUEL
PRESSURE
TEMPERATURE
MEMORY
SETUP
CALIBRATION
DIAGNOSTICS
STATUS
MENU
F1
F2
F3
SETUP MENU
(more)
TIME
O2 REFERENCE
PRINT PRESSURE
ZOOM
BATTERY CHARGER
LOGGING
(more)
MENU
F1
F2
F3
PRINT PRESSURE
No
Yes
05/26/06 09:25:30 AM
MENU
F1
Instruction 24-9448
F2
F3
11
Initial Setup
3.13 Zoom-Display Selection
Combustion test data in the Run/Hold screen can
be shown with enlarged characters to make viewing easier. The operator can set zoom levels to
Standard, 2X, or 3X. The Standard zoom setting
will display 8 lines of combustion test data at one
time, 2X which will display 4 lines of combustion test data with enlarged characters, and 3X
which will display 3 lines of combustion test data
with enlarged characters. The operator can scroll
through the complete list of measured and calculated data no matter what zoom level has been
selected.
Select desired zoom level as follows:
Hold
NGas
O2
4.0
%
CO 12 ppm
EFF 82.6 %
PRINT
MENU
F1
SAVE
F2
F3
MAIN MENU
FUEL
PRESSURE
TEMPERATURE
MEMORY
SETUP
1.Display the MAIN MENU by pressing the
MENU (F2) button. If necessary, press ESC
until MENU appears above F2.
CALIBRATION
DIAGNOSTICS
STATUS
2.Use the
buttons to highlight SETUP, and
then press ENT to display the SETUP MENU.
3.Use the
buttons to highlight ZOOM, and
then press ENT to display the ZOOM screen.
4.Use the
buttons to select the desired Zoom
level. Options include STANDARD, 2X, and
3X. Standard will display eight lines of Combustion test data, 2X will display four, and 3X
will display 3.
MENU
F1
F2
F3
SETUP MENU
(more)
TIME
O2 REFERENCE
PRINT PRESSURE
ZOOM
BATTERY CHARGER
LOGGING
(more)
MENU
F1
5. Press ENT to save the selection and re-display
the ­SETUP MENU.
F2
F3
ZOOM
Standard
2x
3x
05/26/06 09:25:30 AM
MENU
F1
12
F2
F3
Instruction 24-9448
Initial Setup
3.14 Battery Charger Selection
When using rechargeable NiMH batteries, the AC
power adapter can be used to charge the batteries
while inside the analyzer. The analyzer’s rapidcharger circuit, however, must be first turned ON.
IMPORTANT: When using disposable alkaline batteries, the analyzer’s battery charger
circuit should be OFF to prevent the batteries from overheating.
As a precaution, the charger circuit is automatically toggled to its OFF state when the analyzer is
turned OFF, thus requiring the operator to turn
the charger back ON when needed.
Note: The PCA2 must be left turned ON to
charge the batteries.
Turn the battery charger circuit ON and OFF as
follows:
1. Display the MAIN MENU by pressing the
MENU (F2) button. If necessary, press ESC
until MENU appears above F2.
2. Use the
buttons to highlight SETUP,
and then press ENT to display the SETUP
MENU.
3. Use the
buttons to highlight BATTERY
CHARGER, and then press ENT to display
the BATTERY CHARGER screen.
MAIN MENU
FUEL
PRESSURE
TEMPERATURE
MEMORY
SETUP
CALIBRATION
DIAGNOSTICS
STATUS
MENU
F1
F2
F3
SETUP MENU
(more)
TIME
O2 REFERENCE
PRINT PRESSURE
ZOOM
BATTERY CHARGER
LOGGING
(more)
MENU
F1
F2
F3
BATTERY CHARGER
OFF
ON
05/26/06 09:25:30 AM
MENU
F1
F2
F3
4. Use the
buttons to highlight either OFF
(turn charger OFF) or ON (turn charger ON).
In the example shown, ON has been selected.
5. Press ENT to save the selection and re-display the ­SETUP MENU.
Instruction 24-9448
13
Initial Setup
3.15 Logging Selection–
When the logging function is activated, up to 500
combustion test records will be automatically
stored in memory at a preset interval over a predetermined length of time.
Refer to Section 4.14 for detailed information on
how to select the logging function; how to set the
interval and duration time periods; and how to
view or download the stored data.
SETUP MENU
(more)
LOGGING
TEST ID
USERNAME
RUN/HOLD FORMAT
LANGUAGE SELECTION
BUTTON SOUND
CAL REMINDER PERIOD
MENU
F1
F2
F3
MAIN MENU
FUEL
3.16 Button Sound
PRESSURE
The audible sound used to signal when a button is
pressed can be turned OFF and ON as follows:
SETUP
1. Display the MAIN MENU by pressing the
MENU (F2) button. If necessary, press ESC
until MENU appears above F2.
2. Use the
buttons to highlight SETUP, and
then press ENT to display the SETUP MENU.
TEMPERATURE
MEMORY
CALIBRATION
DIAGNOSTICS
STATUS
MENU
F1
F2
SETUP MENU
(more)
LOGGING
3. Use the
buttons to highlight BUTTON
SOUND, and then press ENT to display the
BUTTON SOUND screen.
TEST ID
4. Use the
buttons to highlight either OFF
(turn sound OFF) or ON (turn sound ON). In
the example shown, OFF has been selected.
BUTTON SOUND
5. Press ENT to save the selection and
re-display the ­SETUP MENU.
F3
USERNAME
RUN/HOLD FORMAT
LANGUAGE SELECTION
CAL REMINDER PERIOD
MENU
F1
F2
F3
BUTTON SOUND
OFF
ON
05/26/06 09:25:30 AM
MENU
F1
14
F2
F3
Instruction 24-9448
Initial Setup
3.17 Test ID Information
Test records can be identified (e.g. customer's name, burner number, and
location) by manually entering up to three lines of text, with each line containing a maximum of 20 alphanumeric characters. When a Test ID is selected this information will be associated with all succeeding test records,
and will appear at the top of each test record when printed, and in Excel
files when records are downloaded to a PC. The chosen Test ID remains in
effect until it is deselected, a new Test ID is selected, or the instrument is
turned off. Up to 30 Test ID's can be pre-entered
MAIN MENU
for later retrieval.
FUEL
PRESSURE
To enter or edit a Test ID:
TEMPERATURE
MEMORY
1. Display the MAIN MENU by pressing the MENU (F2) button. If necessary,
press ESC until MENU appears above
F2
SETUP
CALIBRATION
DIAGNOSTICS
.
2. Use the
buttons to highlight SETUP, and
then press ENT to display the SETUP MENU.
3. Use the
buttons to highlight TEST ID, and
then press ENT to display the TEST ID menu
4. Use the
buttons to highlight EDIT TEST
ID, and then press ENT to display the EDIT
TEST ID menu, which displays the first line of
each Test ID record.
5. Use the
buttons to select which Test ID to
edit and then press ENT to display all three
lines of that record. Periods (.....) are used to
identify empty lines.
STATUS
MENU
F1
F2
F3
Test ID Menu
Select Test ID
Edit Test ID
Clear Test ID
MENU
F1
F2
F3
6. Use the
buttons to choose which of the three Test ID lines to edit
and then press ENT to begin editing the chosen line.
7. Use the
buttons to enter the desired character and then move to the
next character position by pressing the right arrow key. Repeat this
step until the line is complete. A maximum of 20 alphanumeric characters can be entered. Press ENT to accept the information.
8. At this time, either return to step 6 to choose another line to edit, or
Instruction 24-9448
15
Initial Setup
end this procedure by highlighting Edit Complete and pressing the ENT
key to return to the Edit Test ID Menu.
9. Press ESC to go to the Test ID Menu or the RUN/HOLD key to return
to the Run/Hold screen.
Select a Test ID:
1. From the Test ID menu, use the
buttons to
highlight SELECT TEST ID, and then press
ENT to display the SELECT TEST ID menu,
which displays the first line of each Test ID
record.
2. Use the
buttons to choose a pre-entered
Test ID or choose NO Test ID (located at
bottom of list) to deselect a previously chosen
record, then press ENT to make the selection
and return to the Test ID menu.
Test ID Menu
Select Test ID
Edit Test ID
Clear Test ID
MENU
F1
F2
F3
3. Press ESC to end the procedure and return to the Setup Menu or press
the RUN/HOLD key to return to the Run/Hold Screen.
Clear Test ID Information:
1. From the Test ID menu, use the
buttons
to highlight CLEAR TEST ID, and then press
ENT to display the CLEAR TEST ID menu.
2. Do one of the following to clear Individual Records or All Records.
*Individual Records - Use the
buttons to
highlight Individual Records, then press ENT
to display the Clear Individual menu. Again
use the
buttons to highlight the individual
record to clear, then press ENT to clear the
record.
Test ID Menu
Select Test ID
Edit Test ID
Clear Test ID
MENU
F1
F2
F3
*All Records - Use the
buttons to highlight All Records, then press
ENT to display the Clear All menu. Again use the
buttons to highlight Yes, then press ENT to clear all records.
3. Press ESC to end this procedure and return to the Test ID menu or
press the RUN/HOLD key to return to the Run/Hold screen.
16
Instruction 24-9448
Initial Setup
3.18 Username
The name of the user or owner of the analyzer (e.g. company name, address, phone number) can be stored in memory by manually entering up
to three lines of text, with each line containing up to 20 alphanumeric
characters. This information will appear at the top of each printout, until
such time as new information is entered or cleared.
MAIN MENU
Username Information can be entered as follows:
1. Display the MAIN MENU by pressing the MENU (F2) button. If necessary,
press ESC until MENU appears above
F2
FUEL
PRESSURE
TEMPERATURE
MEMORY
SETUP
.
CALIBRATION
DIAGNOSTICS
2. Use the
buttons to highlight SETUP, and
then press ENT to display the SETUP MENU.
STATUS
3. Use the
buttons to highlight USERNAME,
and then press ENT to display all three lines
of the EDIT USERNAME screen. Periods(.....)
identify empty lines.
F1
4. Use the
buttons to choose which of the
three Username lines to edit, then press ENT
to begin editing the chosen line.
MENU
F2
F3
SETUP MENU
(more)
LOGGING
TEST ID
USERNAME
RUN/HOLD FORMAT
LANGUAGE SELECTION
BUTTON SOUND
5. Use the
buttons to enter the desired charac- CAL REMINDER
ter and then move to the next character posiMENU
tion by pressing the right arrow key. Repeat
F1
F2
this step until the line is complete. A maximum of 20 alphanumeric characters can be entered.
PERIOD
F3
6. Press ENT to accept the entered information.
7. At this time, either return to step 4 to choose another line to edit, or
end this procedure by highlighting Edit Complete and pressing the
ENT key to return tot he Setup Menu.
8. Press ESC to go to the Main Menu or the RUN/HOLD key to return to
the Run/Hold screen.
Instruction 24-9448
17
Initial Setup
To Clear a Username proceed as follows:
1. Display the MAIN MENU by pressing the MENU (F2) button. If necessary,
press ESC until MENU appears above
F2
MAIN MENU
FUEL
PRESSURE
TEMPERATURE
MEMORY
.
2. Use the
buttons to highlight SETUP, and
then press ENT to display the SETUP MENU.
3. Use the
buttons to highlight USERNAME,
and then press ENT to display all three lines
of the EDIT USERNAME screen. Periods(.....)
identify empty lines.
4. Use the
buttons to choose which of the
three Username lines to clear, then press
CLEAR (F3) to clear that line.
5. At this time, either return to step 4 to choose
another line to clear, or end this procedure by
highlighting EDIT COMPLETE and pressing
the ENT key to return tot he Setup Menu.
6. Press ESC to go to the Main Menu or the RUN/
HOLD key to return to the Run/Hold screen
SETUP
CALIBRATION
DIAGNOSTICS
STATUS
MENU
F1
F2
F3
SETUP MENU
(more)
LOGGING
TEST ID
USERNAME
RUN/HOLD FORMAT
LANGUAGE SELECTION
BUTTON SOUND
CAL REMINDER PERIOD
MENU
F1
F2
F3
Edit Username
............
............
............
Edit Complete
MENU
F1
18
F2
CLEAR
F3
Instruction 24-9448
Initial Setup
3.19 Language
Information on the display screen can be shown in English, French, or
Spanish. Select the desired language as follows:
1. Display the MAIN MENU by pressing the MENU (F2) button. If necessary,
press ESC until MENU appears above
F2
MAIN MENU
FUEL
PRESSURE
TEMPERATURE
.
2. Use the
buttons to highlight SETUP, and
then press ENT to display the SETUP MENU.
3. Use the
buttons to highlight LANGUAGE
SELECTION, and then press ENT to display
The Language Selection Menu.
4. Use the
buttons to highlight the desired
language, then press ENT to activate the selection and re-display the Setup Menu.
MEMORY
SETUP
CALIBRATION
DIAGNOSTICS
STATUS
MENU
F1
F2
F3
SETUP MENU
(more)
Logging
Test ID
Username
Run/Hold Format
Language Selection
Button Sound
CAL Reminder Period
MENU
F1
F2
F3
Language Selection
English
Français
Español
06/28/06 11:45:30 AM
MENU
F1
Instruction 24-9448
F2
F3
19
Initial Setup
3.20 Cal Reminder Period
The analyzer can be set to indicate a calibration reminder during the 60
second warm-up period. Calibration reminders can be preset to occur 6, 8,
10, 12, or 15 months after the last calibration. When the preset period is
exceeded the instrument will display the reminder, and how long since the
sensors were last calibrated. The reminder will be displayed at the end of
the 60 second warm-up period. If a calibration reminder is displayed the
operator can press the RUN/HOLD key to move to the Run/Hold screen for
normal operation. Regular calibration periods of 6 months to a year for all
gas sensors (except Oxygen) are recommended.
MAIN MENU
Set the calibration reminder period as follows:
1. Display the MAIN MENU by pressing the MENU (F2) button. If necessary,
press ESC until MENU appears above
F2
FUEL
PRESSURE
TEMPERATURE
MEMORY
SETUP
.
2. Use the
buttons to highlight SETUP, and
then press ENT to display the SETUP MENU.
3. Use the
buttons to highlight CAL REMINDER PERIOD, and then press ENT to
display CAL Reminder Period Menu.
CALIBRATION
DIAGNOSTICS
STATUS
MENU
F1
F2
F3
SETUP MENU
(more)
4. Use the
buttons to highlight the desired
CAL reminder period, and then press the ENT
key to activate the selection and re-display the
Setup Menu.
Logging
Note: The date and time settings must be correct to
get accurate cal reminders.
CAL Reminder Period
Test ID
Username
Run/Hold Format
Language Selection
Button Sound
MENU
F1
F2
F3
CAL Reminder Period
6 months
8 months
10 months
12 months
15 months
MENU
F1
20
F2
F3
Instruction 24-9448
Initial Setup
3.21 Run/Hold Screen Format
PCA2 testdata is located in the Run/Hold screen. By pressing the Run/
Hold key, you should hear the pump running and see the word RUN at
the upper-left hand corner of the display. The instrument is continuously
measuring and calculating the data that is shown in the Run/Hold screen.
Press the RUN/HOLD key again, the pump should stop running and the
word HOLD should be shown at the upper-left hand corner of the display.
The instrument will now show the last measured and calculated data
taken before the instrument was placed in HOLD. Use the up and down
arrow keys to scroll through the complete list of measured and calculated
values when the instrument is running or in the hold mode.
The order in which data appears in the Run/Hold screen is as follows:
O2
=
CO
=
EFF =
CO2 =
T-STK =
T-AIR =
EA
=
CO(O) =
NO
=
NO2 =
NOx =
SO2
=
NO(O) =
NO2(O)=
NOx(O)=
SO2(O) =
Oxygen
Carbon Monoxide
Combustion Efficiency
Carbon Dioxide
Stack Temperature
Ambient/Primary Air Temperature
Excess Air
Carbon Monoxide content referenced to an Oxygen
percentage
Nitric Oxide
Nitrogen Dioxide
Oxides of Nitrogen (NO and NO2 combined)
Sulfur Dioxide
Nitric Oxide content referenced ro an Oxygen percentage
Nitrogen Dioxide content referenced to an Oxygen
percentage
Oxides of Nitrogen content referenced to an Oxygen
percentage
Sulfur Dioxide content referenced to an Oxygen percentage
Note: (O) denotes the current O2 Reference selected.
Note: Stars (***) appear in measurement and calculation fields of sensors
that are not installed.
Instruction 24-9448
21
Initial Setup
MAIN MENU
Change the order in which data is displayed as
follows:
1. Display the MAIN MENU by pressing the MENU (F2) button. If necessary,
press ESC until MENU appears above
F2
FUEL
PRESSURE
TEMPERATURE
MEMORY
SETUP
CALIBRATION
.
DIAGNOSTICS
STATUS
2. Use the
buttons to highlight SETUP, and
then press ENT to display the SETUP MENU.
3. Use the
buttons to highlight RUN/HOLD
FORMAT, and then press ENT to display Run/
Hold Format Menu.
4. Use the
buttons to highlight Edit Format,
and then press the ENT key to show the Edit
Run/Hold Format, where the current order of
combustion data is displayed.
5. Change data shown for a particular location
by first using the
buttons to highlight the
location. Then press the ENT key to select the
location; the cursor will start to flash.
6. Use the
buttons to scroll through and select
the desired data to appear at that location.
Press the ENT key to make the selection.
MENU
F1
F3
SETUP MENU
(more)
Logging
Test ID
Username
Run/Hold Format
Language Selection
Button Sound
CAL Reminder Period
MENU
F1
F2
F3
Run/Hold Format
Edit Format
Reset Format
7. Change data displayed at other locations by
repeating steps 5 & 6.
8. When finished, use the button to highlight
Edit complete at the bottom of the list, then
press ENT to save the new display format and
return to the Run/Hold Format screen.
F2
MENU
F1
F2
F3
Edit Run/Hold Format
O2
CO
EA
CO2
T-STK
T-AIR
NO
(more)
MENU
F1
22
F2
F3
Instruction 24-9448
Initial Setup
Reset Display format back to factory default settings as follows:
1. Display the MAIN MENU by pressing the MENU (F2) button. If necessary,
press ESC until MENU appears above
F2
MAIN MENU
FUEL
PRESSURE
.
TEMPERATURE
MEMORY
2. Use the
buttons to highlight SETUP, and
then press ENT to display the SETUP MENU.
SETUP
3. Use the
buttons to highlight RUN/HOLD
FORMAT, and then press ENT to display Run/
Hold Format Menu.
STATUS
4. Use the
buttons to highlight RESET FORMAT, then press ENT to display the Reset
Format screen.
5. Use the
buttons to select YES, then press
ENT to reset the display and return to the
Run/Hold Format screen.
CALIBRATION
DIAGNOSTICS
MENU
F1
F2
F3
SETUP MENU
(more)
Logging
Test ID
Username
Run/Hold Format
Language Selection
Button Sound
CAL Reminder Period
MENU
F1
F2
F3
Run/Hold Format
Edit Format
Reset Format
MENU
F1
F2
F3
Reset Format
No
Yes
MENU
F1
Instruction 24-9448
F2
F3
23
Operation
4 Operation
4.1 Operating Tips
•When an analyzer is brought in from a cold vehicle, let it warm up slowly
to minimize condensation. Temperatures below freezing will not damage the analyzer; however, bringing a cold analyzer into a warm, humid
environment may cause condensate to form inside the case.
CAUTION: Although the analyzer itself is not damaged by an extremely
cold environment, the electrochemical sensors may be damaged. The O2
sensor's electrolyte will freeze at approximately -20 ºF and the other sensors at approximately -94 ºF. If the analyzer is exposed to an extremely
cold condition, it is strongly suggested that the sensor housings be examined for hairline cracks. Be aware that a leaking sensor can cause chemical burns to the skin and possibly damage the PCB assemblies.
•Ensure that the analyzer is sampling fresh air when turned ON. Pulling a
stack-gas sample through the analyzer during its warm-up period will not
damage the analyzer, but it will result in incorrect sensor readings, and may
result in sensor error messages appearing after the warm-up cycle completes.
•Note that flue-gas condensate is acidic and very corrosive. It is important
not to allow the analyzer’s internal components to come in contact with
condensate for long periods of time.
•Before each use, inspect the filter element of the water-trap / filter assembly. Replace the filter if it looks dirty. Refer to Section 6.2.
•When sampling flue-gas, keep the analyzer above the water-trap, and keep
the trap in a vertical position. This will maximize the effectiveness of the
trap and keep liquid condensate from being drawn directly into the analyzer.
•When liquid condensate is seen inside the water trap, empty the trap
before it becomes full. Refer to Section 4.9.
•The analyzer should be purged after performing a combustion test. After
removing probe from the stack, let the pump run for at least 10 minutes
to remove any stack gases and dry any condensate from inside the sensor
chamber and probe assembly. If the analyzer is turned OFF with high
levels of flue gas remaining in the analyzer, then the pump will continue
to run and the message “­PURGING SENSORS” will appear on the display until all flue gas levels fall below predetermined levels.
•When storing the analyzer, it’s a good idea to empty the water trap and
leave it open to further dry it out.
•Calibrate the analyzer every 6 months - 1 year to assure its accuracy.
Instruction 24-9448
4-1
Operation
4.2 Turning ON the Analyzer and Warm Up
1. Connect the probe and hose assembly, and make sure that the ­analyzer
is properly set up per Section 3 Initial Setup.
IMPORTANT: DO NOT insert probe into stack
before turning ON the analyzer!
2. Place the probe in an area that contains fresh
air. This ensures that the sensors will be
properly ­zeroed during the warm-up cycle.
3. Turn ON the analyzer by pressing the I/O
button for at least 1 second, or until a single
beep is heard. Observe that the analyzer’s
firmware version, model and serial numbers
are briefly displayed followed by the Warm Up
screen.
PCA 2
FIRMWARE VERSION
x.xx
MODEL xxx
SERIAL # xxxxxxx
MENU
4. Wait for the analyzer to count down its 60 second warm-up period; after which, the instrument will display the Combustion Test HOLD
screen.
If problems were detected during warm up,
the message “ERRORS DETECTED” is displayed along with a list of those errors. As an
example, the screen to the right shows that the
battery is low. Refer to Section 7.3 for a listing
and possible remedy for the errors displayed.
TIP: If the sensors in error are not critical to
the combustion test, then press the RUN/HOLD
button to display the Combustion Test HOLD
screen and proceed with the test.
Warm Up 60
MENU
HOLD NATURAL GAS
O2
20.9 %
CO
0 ppm
EFF
CO2
--- %
--- %
T-STK
71.5 °F
T-AIR
71.5 °F
EA
--- %
CO(0)
PRINT
F1
--- ppm
MENU
SAVE
F2
F3
ERRORS DETECTED
Low Battery
MENU
F1
4-2
F2
F3
Instruction 24-9448
Operation
4.3 Selecting a Fuel
The top line of the Combustion Test HOLD screen
shows the fuel currently ­selected. In the example
shown, the current fuel is NATURAL GAS. If necessary, change the fuel as follows:
HOLD NATURAL GAS
O2
20.9 %
CO
0 ppm
EFF
--- %
--- %
CO2
T-STK
71.5 °F
T-AIR
71.5 °F
EA
1. Display the MAIN MENU by pressing the
MENU (F2) button.
2. Use the
buttons to highlight FUEL, and
then press ENT to display the FUEL MENU.
3. Use the
buttons to scroll through the list of
available fuels until the desired fuel is highlighted. In the example shown, ­PROPANE has
been selected.
NOTE: If custom fuels were added to the
instrument, they will be located at the bottom of
the list.
TIP: Use the
buttons to quickly scroll to the
bottom and top of the list.
4. Press ENT to save the selection and return
to the Combustion Test HOLD screen. The
newly selected fuel should now appear in the
top line of the display.
--- %
CO(0)
--- ppm
PRINT
MENU
F1
SAVE
F2
F3
MAIN MENU
FUEL
PRESSURE
MEMORY
SETUP
CALIBRATION
DIAGNOSTICS
STATUS
MENU
F1
F2
F3
FUEL MENU
NATURAL GAS
OIL #2
OIL #4
OIL #6
PROPANE
COAL
WOOD
(more)
MENU
F1
F2
F3
HOLD PROPANE
O2
20.9 %
CO
0 ppm
EFF
CO2
--- %
T-STK
71.5 °F
T-AIR
71.5 °F
EA
CO(0)
PRINT
F1
Instruction 24-9448
--- %
--- %
--- ppm
MENU
F2
SAVE
F3
4-3
Operation
4.4 Sampling Point
Forced Air Furnace – For atmospheric burner
or gravity vented, forced air heating equipment
with a clamshell or sectional heat exchanger design, test each of the exhaust ports at the top of the
heat exchanger. The probe should be inserted back
into each of the exhaust ports to obtain a flue-gas
sample, before any dilution air is mixed in.
Hot Water Tank – Domestic hot water tanks
with the ‘bell’ shaped draft diverter can be accurately tested by inserting the probe tip directly
into the top of the fire tube below the diverter.
80% Efficiency Fan Assist or Power Vented
– Combustion testing of fan assist or power vented,
furnaces/boilers should be done through a hole drilled
in the vent immediately above the inducer fan.
O 2,
CO,
Stack Temp.
Forced Air Furnace
Undiluted Flue
Gas Sample Taken
Under Draft
Diverter in Top
of Fire Tube
90% Efficiency Condensing – Condensing ­furnaces/boilers can be tested through a hole
drilled in the plastic vent pipe (when allowed by
the manufacturer or local authority of jurisdiction)
or taken from the exhaust termination.
Atmospheric or Gravity Vented Boiler
– Boilers, which have a ‘bell’ shaped draft diverter
on top, should be tested directly below the diverter Hot Water Tank
through a hole drilled in the vent connector.
Combustion Air
O2, CO,
O2, CO,
Sampling Point
Stack Temp.
Stack Temp.
O2, CO,
Stack Temp.
80% Eff. Fan Assist or
Power Vented
4-4
90% Eff. Condensing
Atmospheric or Gravity
Vented Boiler
Instruction 24-9448
Operation
4.5 Performing a Combustion Test
Ensure that the following has been completed, and then proceed with the
combustion test as described below:
•Turn ON analyzer and allow it to warm up (Section 4.2).
•Select fuel being burned (Section 4.3).
•Inset probe into stack (Section 4.4).
•If necessary, insert optional primary air thermocouple into combustionair stream of burners that use an outside source of ­combustion air.
1. Press the RUN/HOLD button to start the test.
You should hear the pump start running and
see the word RUN appear at the top of the
Combustion Test screen.
RUN NATURAL GAS
O2
CO
EFF
4.0 %
12 ppm
82.6 %
Sensor Indicators: The following indicators
appear in the sensor's data field depending on
certain conditions:
CO2
(∗ ∗ ∗) Sensor that is not calibrated or installed.
CO(3)
F1
F2
F3
(XXX) Sensor overrange
(- - -) The calculated data cannot be displayed
because the measured data necessary to make the calculation is out of
range (i.e., oxygen level above 16%).
9.5 %
T-STK
374 °F
T-AIR
68.0 °F
EA
PRINT
21.3 %
13 ppm
MENU
SAVE
2. Use the up and down arrow keys to scroll to the T-STK reading.
Loosen the thumbscrew on probe stop and move probe in and out of
the stack until the stack’s core temperature (hot spot) is located as
indicated by the highest T-STK reading; then tighten thumbscrew to
prevent further probe movement. Locating the highest stack temperature is very important for accurate efficiency calculations.
3. You can now begin burner-service procedures. The analyzer readings
will change quickly to show changes in burner ­performance.
CAUTION: Position the Water Trap with its gas-flow arrow
pointing upward. Do not let water condensate go above the tip
of the riser tube. The sensors could be damaged if water would
enter the analyzer. Empty the Water Trap after every combustion test (refer to Section 4.9)
4. Pressing the RUN/HOLD button freezes all readings, stops the pump and
displays the Combustion-Test HOLD screen. Press the ENT button to view
all test values at the moment the RUN/HOLD button was pressed. Pressing RUN/HOLD again restarts the pump and resumes testing.
Instruction 24-9448
4-5
Operation
TABLE 4-1. LIST OF COMBUSTION TEST DATA
Display
Name
Description of Measurement or Calculation
O2
% Oxygen
CO
Carbon Monoxide (1)
EFF
Combustion Efficiency
CO2
% Carbon Dioxide
T-STK
Stack Temperature
T-AIR
Primary / Ambient Air Temperature as measured either internally or by an optional external thermocouple plugged into
the analyzer’s T-AIR connector
CO(O)
Carbon Monoxide ppm level referenced to a % of oxygen (2)
NO
Nitric Oxide (1)
NO2
Nitrogen Dioxide (1)
SO2
Sulfur Dioxide (1)
NOx
Oxides of Nitrogen (NO and NO2 combined) (1)
NO(O)
Nitric Oxide ppm level referenced to a % of oxygen (2)
NO2(O)
Nitrogen Dioxide ppm level referenced to a % of oxygen (2)
NOx(O)
Oxides of Nitrogen ppm level referenced to a % of oxygen (2)
SO2(O)
Sulfur Dioxide ppm level referenced to a % of oxygen (2)
NO Temp Nitric Oxide Sensor Temperature (3)
(1) Pollution unit of measure selected per Section 3.9
(2) The letter “O” represents the oxygen reference level of between 0 and 15% as
selected per section 3.12
(3) Shown only on printout, not on LCD display.
Note: Stars (***) appear in measurement and calculation fields of sensors that are not
installed
4-6
Instruction 24-9448
Operation
4.6 Pressure Label Selection
The pressure measurement can be labeed with types including gas pressure, differential across heat exchanger, draft reading, and differential
pressure. See Section 4.6 of the PCA2 Instruction Manual 24-9448 for
pressure and draft measurement procedures.
Label data as follows:
1.Display the MAIN MENU by pressing the MENU (F2) button. If necessary, press ESC until MENU appears above F2.
2.Use the
buttons to highlight PRESSURE,
and then press ENT to display the PRESSURE MENU.
MAIN MENU
FUEL
PRESSURE
MEMORY
SETUP
3.Use the
buttons to scroll through the
available pressure label types. The current
label will be used, saved, and printed with the
record
4.Press ENT to save the selection and ­re-display
the PRESSURE MENU or ESC to exit back to
the Main Menu Press ENT to save the selection and ­re-display the PRESSURE MENU or
ESC to exit back to the Main Menu
CALIBRATION
DIAGNOSTICS
STATUS
MENU
F1
F2
F3
Pressure
Measured
6.00 inwc
Type: Draft Reading
Print
F1
Instruction 24-9448
Zero
F2
Save
F3
4-7
Operation
4.7 Temperature Measurement Label
The difference in temperature between two areas can be measured by using the analyzer's two temperature channels and the Temperature screen.
By using the T-Air channel as a reference, the temperature applied to
the T-Stack channel will be displayed on the Temperature Measurement
screen as differential temperature between the two channels. Additionally, the temperature measurement can be labeled. Label types include
differential temperature across heat exchange or differential temperature.
Perform a differential temperature measurement as follows:
1. Display the MAIN MENU by pressing the
MENU (F2) button. If necessary, press ESC
until MENU appears above F2.
MAIN MENU
FUEL
PRESSURE
TEMPERATURE
2. Use the
buttons to highlight TEMPERATURE, and then press ENT to display the
TEMPERATURE MEASUREMENT screen.
3. Install thermocouples in both temperature
channel connectors.
4. Before taking a measurement, the temperature
channels may need to be zeroed, if not already
displaying zero with both thermocouples exposed to the same condition. Press ZERO (F2)
if needed.
5. To label the data use the
buttons to scroll
through the available temperature label types.
The current label will be used, saved, and
printed with the record.
6. Press ENT to save the selection and ­re-display
the TEMPERATURE MENU or ESC to exit
back to the Main Menu
4-8
MEMORY
SETUP
CALIBRATION
DIAGNOSTICS
STATUS
MENU
F1
F2
F3
Temperature
Measured Delta T:
*** °F
Type: Diff Temp
Print
F1
Zero
F2
Save
F3
Instruction 24-9448
Operation
4.8 Making a Draft / Pressure Measurement
The difference in pressure (∆P) between two areas can be measured by
using the analyzer’s two pressure ports and the ­PRESSURE screen. By
using the –∆P port as the reference, the pressure applied to the +∆P port
will be displayed on the PRESSURE screen as the differential pressure
between the two ports.
Perform a draft / pressure measurement as follows:
MAIN MENU
1. Turn ON the analyzer and allow it to complete
its warm-up cycle (­Section 4.2).
TIP: The pressure units of measure is selected
per ­Section 3.8.
2. Display the MAIN MENU by pressing the
MENU (F2) button. If necessary, press ESC
until MENU appears above F2.
FUEL
PRESSURE
MEMORY
SETUP
CALIBRATION
DIAGNOSTICS
STATUS
MENU
F1
F2
3. Use the
buttons to highlight PRESSURE,
and then press ENT to display the PRESSURE
screen.
PRESSURE
4. Before taking a measurement, the pressure
sensor may need to be re-zeroed if it is not
already displaying zero with both pressure
ports open to the atmosphere. If necessary,
zero the pressure sensor as follows:
Measured:
0.00 inwc
PRINT
ZERO
F1
POWER
T-STACK
P
— ∆P (Pressure
Reference Port)
T-AIR
F3
F2
SAVE
F3
Sampling Hoses with quick
connect fittings are available
as an optional accessory.
Refer to Section 8.2.
GAS
+∆P (Pressure
Measurement Port)
Figure 4-1. Draft / Pressure Measurement Hose Connections
Instruction 24-9448
4-9
Operation
a.Press the ZERO (F2) button.
b.Disconnect any hoses connected to the
+∆P and –∆P ports, and then press ENT
to zero the pressure sensor.
c.Reconnect any hoses. When measuring
draft, simply leave the –∆P port open to
the atmosphere and connect the probe’s
draft hose to the +∆P port (see Figure 3-2
on Page 3-3).
PRESSURE ZERO
Disconnect hose then
press ENTER
PRINT
F1
ZERO
SAVE
F2
F3
PRESSURE ZERO
5. Do one of the following to measure draft or
differential pressure:
Reconnect hose
• To measure draft, simply insert the probe
into the stack and observe the draft reading on the PRESSURE screen.
• To measure differential pressure, connect
PRINT
ZERO
SAVE
two sampling hoses to the +∆P and –∆P
F1
F2
F3
ports, and place the open end of each hose
into the areas being measured. The differential pressure between the
two areas is now displayed on the PRESSURE screen. If the pressure
at the +∆P port is higher than the –∆P port, then the pressure reading
will be positive. If it is lower, then the reading will be negative.
4.9 Saving Test Data
Up to 500 individual sets (“snap shots”) of combustion-test, pressure, or
temperature data can be saved in memory, which can later be recalled for
viewing from the Memory Directory (Section 4.13.1).
1. First display the screen that contains the
data to be saved. In the example to the right,
all data associated with the Combustion Test
RUN screen will be saved.
2. Press the SAVE (F3) button to save the test
data in the next available memory location.
NOTE: When memory is full, the next reading
will not be saved until space is made available
by clearing the data. (See 4.15.4: Clearing
Memory)
4-10
RUN NATURAL GAS
O2
4.0 %
CO
12 ppm
EFF
CO2
82.6 %
9.5 %
T-STK
374 °F
T-AIR
68.0 °F
EA
CO(3)
PRINT
F1
21.3 %
13 ppm
MENU
F2
SAVE
F3
Instruction 24-9448
Operation
4.10 Ending a Combustion Test
WARNING! Burn Hazard. Do not touch the probe after
removing it from the stack. Allow the probe to cool before
handling (about 5 minutes).
1. Remove probe from stack.
2. Allow the pump to run until all combustion gases have been flushed
from the analyzer as indicated by the O2 reading returning to 20.9%.
4.11 Emptying the Water Trap
The Water Trap / Filter Assembly removes stack-gas condensate, and also
prevents soot from contaminating the internal components of the analyzer.
IMPORTANT: Use the Water Trap /
Filter Assembly in a vertical position
with the gas-flow arrow pointing up as
shown in the illustration to the right.
To Gas Port
on Analyzer
Empty the water trap chamber after each
combustion test, or stop the test and empty
the chamber if the liquid condensate level approaches the tip of the riser tube.
To empty water,
pull apart using
a slight twisting
motion
To empty the trap, first pull apart the two
halves of the Water Trap using a slight twisting motion; empty the water trap chamber;
and then reassemble the trap.
Gas
Flow
After each combustion test, also check the
Water Trap’s filter element. If it looks dirty,
replace the filter per Section 6.2.
Do not allow water
level to go above
tip of riser tube
Stack Gas
From Probe
Instruction 24-9448
4-11
Operation
4.12 Turning OFF the Analyzer & Purging
Turn OFF the analyzer by pressing the I/O button for at least 2 seconds, or until two beeps are
heard. The unit will count down 5 seconds before
shutting down, giving the operator an opportunity to keep the analyzer turned ON by pressing
the RUN/HOLD button.
If the PCA 2 was not purged with fresh air as
described in Section 4.8, then the analyzer may
remain ON with its pump running and display
the message “PURGING SENSORS” as the result of combustion gases still being present inside
the analyzer. At this time the operator should
ensure that the probe is removed from the stack,
allowing the analyzer to purge itself with fresh
air. The 5-second-shutdown sequence will not
begin until the gas levels inside the analyzer drop
below predetermined levels:
SHUTDOWN IN 5 sec
MENU
PURGING SENSORS
TIP: Although not recommended, the purging process can be bypassed by pressing the
I/O button a second time.
MENU
4.13 Low Battery Alarm
When the batteries are nearly depleted, an empty battery icon appears in
the upper-right corner of the display, and a short beep is sounded every
10 seconds.
Low Battery Alarm
After a low battery alarm occurs, the analyzer
will continue to operate for only a few minutes.
The amount of operating time that remains depends on many factors (e.g., pump and backlight
being ON or OFF, and the type and condition of
the batteries).
Empty Battery Icon
RUN NATURAL GAS
O2
4.0 %
CO
12 ppm
EFF
CO2
9.5 %
T-STK
374 °F
T-AIR
68.0 °F
EA
CO(3)
PRINT
F1
4-12
82.6 %
21.3 %
13 ppm
MENU
F2
SAVE
F3
Instruction 24-9448
Operation
4.14 Data Logging
When the logging function is activated, up to 500 combustion test records
will be automatically stored in memory at a preset interval (1, 5, 10, 15,
30 seconds, 1, 2, 5, 10 minutes) over a predetermined duration (5, 10, 15,
30 minutes, 1, 2, 5, 10, 24, 48 hours).
The maximum duration that data can be collected is determined by the interval. For example, if the interval is set to 10 seconds, then the maximum
selectable length of time in which data can be collected to fill 500 memory
locations would be 1 hour (500 x 10 seconds = 5000 seconds or 83 minutes).
If the operator chooses a duration that is longer than possible for the interval chosen, then the analyzer automatically selects the highest duration
possible for the selected interval.
The stored logged data can either be viewed on the display using the analyzer’s memory function (refer to Section 4.13), or downloaded to a personal
computer using the supplied PCA 2 data recovery software and USB cable
(refer to Section 4.14). Downloaded data is stored on the computer’s hard
drive as a comma-separated-value ASCII text file with a CSV extension,
which can be opened by most spreadsheet programs for analysis.
TIP: The latest PCA 2 data recovery software can be downloaded from http://www.bacharach-inc.com/downloads.
Instruction 24-9448
4-13
Operation
4.14.1 Turning ON Data Logging
IMPORTANT: Before turning ON data logging and starting the
data logging process, the analyzer should already be set up to
perform a combustion test per ­Section 4.5.
Turn ON data logging as follows:
1. Display the MAIN MENU by pressing the
MENU (F2) button. If necessary, press ESC
until MENU appears above F2.
2. Use the
buttons to highlight SETUP, and
then press ENT to display the SETUP MENU.
MAIN MENU
FUEL
PRESSURE
MEMORY
SETUP
CALIBRATION
DIAGNOSTICS
STATUS
3. Use the
buttons to highlight LOGGING,
and then press ENT to display the LOGGING
screen.
TIP: The amount of memory available for
­storing new data is displayed in the LOGGING screen (maximum of 500 locations). If
previous logging sessions are stored, and additional memory is needed, clear the logging
memory per ­Section 4.13.3.
NOTE: At no time will new logging data over
write old data.
4. Use the
buttons to highlight YES (turn
logging ON).
5. Press ENT to make the selection and display
the LOGGING ­INTERVAL screen.
MENU
F1
F2
F3
SETUP MENU
(more)
LOGGING
TEST ID
USERNAME
RUN/HOLD FORMAT
LANGUAGE SELECTION
BUTTON SOUND
CAL REMINDER PERIOD
MENU
F1
F2
F3
LOGGING
NO
YES
nnn MEMORY
LOCATIONS OPEN
MENU
F1
F2
F3
Where: “nnn” is the number of
memory locations available to
store data.
4-14
Instruction 24-9448
Operation
4.14.2 Setting the Logging Interval and Duration
The logging interval is the length of time between measurements, while
the logging duration is the time allocated to the logging process. Set the
logging interval and duration as follows:
TIP: If the duration is set for more than 10 hours, we recommend using the optional AC power adapter to power the
­analyzer.
1. As soon as logging is turned ON as described
in Section 4.12.1, the ­LOGGING INTERVAL
screen appears.
2. Use the
buttons to highlight the desired
interval, and then press ENT to make the
selection and display the LOGGING DURATION screen. In this example, 1 minute has
been selected
3. Use the
buttons to highlight the desired
duration, and then press ENT to make the
selection and display the LOGGING SUMMARY screen. In this example, 2 hours has
been selected.
NOTE: If the selected duration requires more
memory than is currently available, then the
analyzer will automatically select the longest
duration possible for the selected interval.
LOGGING INTERVAL
1 sec
5 sec
10 sec
15 sec
30 sec
1 min
2 min
(more)
MENU
F1
F3
LOGGING DURATION
5 min
10 min
15 min
30 min
1 hr
2 hr
5 hr
(more)
MENU
F1
Instruction 24-9448
F2
F2
F3
4-15
Operation
4.14.3 Starting the Data Logging Process
After turning ON data logging and setting the
interval and duration, the analyzer will pause
at the LOGGING SUMMARY screen, where the
currently selected interval and duration time
periods are displayed.
Press ENT to start the combustion test and logging process. At this time the Combustion Test
LOG screen will appear, indicating that the analyzer is now performing a combustion test and the
data is being stored in memory.
Note the following:
LOGGING SUMMARY
Interval 1 min
Duration 2 hr
Press ENTER
to Start
MENU
F1
F2
F3
LOG NATURAL GAS
O2
4.0 %
•At the bottom of the screen, the memory location where the current log entry is being saved
is displayed.
CO
T-STK
374 °F
•If there were previously stored log entries,
each new logging session will start to store
data in the next available memory ­location.
T-AIR
68.0 °F
•At no time will new data overwrite old data.
•The ENT button can be pressed while logging to
bustion Test screens.
4-16
12 ppm
EFF
CO2
EA
CO(3)
82.6 %
9.5 %
21.3 %
13 ppm
Log Entry xx
F1
F2
F3
Where: “xx” is the memory
location where the current
view
the
Comlog
entry
is other
being saved.
Instruction 24-9448
Operation
4.14.4 Ending the Data Logging Process
Data logging will stop and the pump will turn OFF after the prescribed
duration, or after all 500 memory locations are filled.
To exit the Combustion Test LOG screen, press
the RUN/HOLD button twice to display the Combustion Test HOLD screen.
LOG NATURAL GAS
Note the following:
CO2
•To end the logging process at any time, press
the ESC button.
•At the end of the logging period, or if the
ESC button was pressed, the total number
of log entries that were stored during that
period appear at the bottom of the screen.
O2
4.0 %
CO
12 ppm
EFF
82.6 %
9.5 %
T-STK
374 °F
T-AIR
68.0 °F
EA
CO(3)
21.3 %
13 ppm
yy Entries Stored
F1
F2
F3
Where: “yy” is the number of
log entries stored during the
last logging session.
•If the logging process was stopped by pressing ESC, it cannot be resumed without first turning logging back ON per Section 4.12.1.
4.15 Memory
There are two memory banks, each containing 500 memory locations. The
first bank is used to store combustion test data as described in Section 4.7.,
while the second bank is used to store logged combustion test data as
described in Section 4.12. Each bank is independent of each other, and cannot share data or be combined.
Individual memory locations in each memory bank can be recalled for
viewing on the display or printed (refer to Sections 4.13.1 & 4.13.2), or the
entire contents of each memory bank can be individually downloaded to a
computer and viewed in a spreadsheet program for analysis (refer to Section 4.14).
TIP: When displaying the contents of either memory bank,
the operator can quickly page through the screens by pressing the PAGE– (F1) and PAGE+ (F3) buttons. Or move to
the first or last memory location by pressing the
buttons,
respectively.
Instruction 24-9448
4-17
Operation
4.15.1 Recalling Combustion Test Data
Recall individual combustion test data records as
follows:
1. Display the MAIN MENU by pressing the
MENU (F2) button. If necessary, press ESC
until MENU appears above F2.
2. Use the
buttons to highlight MEMORY,
and then press ENT to display the MEMORY
MENU.
3. Use the
buttons to highlight MEMORY
DIRECTORY, and then press ENT to display
the MEMORY DIRECTORY screen.
4. Use the
buttons to highlight the desired
memory location to be recalled. Each memory
location is identified by the date and time at
which data was saved. The word EMPTY signifies that the memory location does not contain
data.
5. Press ENT to display the data contained in
the selected memory location.
Note the following:
•The top line of the recalled combustion test
data screen shows the memory location being
viewed. In this example, “MEM: 1” is being
displayed
•The ENT button can be pressed to view other
memory test data screens.
•The recalled combustion test data can be
printed by pressing the PRINT (F1) button
(refer to Section 4.16).
MAIN MENU
FUEL
PRESSURE
MEMORY
SETUP
CALIBRATION
DIAGNOSTICS
STATUS
MENU
F1
F2
MEMORY MENU
MEMORY DIRECTORY
LOGGING DIRECTORY
CLEAR MEMORY DATA
CLEAR LOGGING DATA
CLEAR ALL MEMORY
MENU
F1
F2
F3
MEMORY DIRECTORY
1
05/23/06 10:00:00
2
05/23/06 10:30:14
3
05/23/06 11:45:38
4
05/23/06 01:50:10
5
05/23/06 03:35:25
6
EMPTY
7
EMPTY
(more)
PAGEF1
MENU
PAGE+
F2
F3
Mem: 1 NATURAL GAS
O2
4.0 %
CO
12 ppm
EFF
CO2
82.6 %
9.5 %
T-STK
374 °F
T-AIR
68.0 °F
EA
CO(3)
4-18
F3
21.3 %
13 ppm
PRINT
MENU
F1
F2
F3
Instruction 24-9448
Operation
4.15.2 Recalling Logged Test Data
Recall individual logged combustion test data records as follows:
1. Display the MAIN MENU by pressing the
MENU (F2) button. If necessary, press ESC
until MENU appears above F2.
2. Use the
buttons to highlight MEMORY,
and then press ENT to display the MEMORY
MENU.
MAIN MENU
FUEL
PRESSURE
MEMORY
SETUP
CALIBRATION
DIAGNOSTICS
STATUS
3. Use the
buttons to highlight LOGGING
DIRECTORY, and then press ENT to display
the LOGGING DIRECTORY screen.
4. Use the
buttons to highlight the desired
data logging location to be recalled. Each
logging location is identified by the date and
time at which the data was saved. The word
EMPTY signifies that the logging location
does not contain data.
MENU
F1
•The top line of the log test data screen shows
the log location being viewed. In this example,
“Log: 6” is being displayed.
•The ENT button can be pressed to view other
log test data screens.
•The recalled logged test data can be printed
by pressing the PRINT (F1) button (refer to
Section 4.16).
MEMORY MENU
LOGGING DIRECTORY
CLEAR MEMORY DATA
CLEAR LOGGING DATA
CLEAR ALL MEMORY
MENU
F1
F2
F3
LOGGING DIRECTORY
1
05/23/06 10:00:00
2
05/23/06 10:30:00
3
05/23/06 11:00:00
4
05/23/06 11:30:00
5
05/23/06 12:00:00
6
05/23/06 12:30:00
7
05/23/06 01:00:00
(more)
PAGE-
MENU
PAGE+
F1
F2
F3
Log: 6 NATURAL GAS
O2
4.0 %
CO
12 ppm
EFF
CO2
82.6 %
9.5 %
T-STK
374 °F
T-AIR
68.0 °F
EA
CO(3)
Instruction 24-9448
F3
MEMORY DIRECTORY
5. Press ENT to display the logging data contained in the selected memory location.
Note the following:
F2
21.3 %
13 ppm
PRINT
MENU
F1
F2
F3
4-19
Operation
4.15.3 Clearing Memory
When all memory (“snap shot”) locations used to
store individual combustion test records have been
filled, the next combustion test record saved will
overwrite the oldest.
When all logging memory locations in the logging
directory are full, they must be manually cleared
in order to store new data. At no time will the logging process overwrite older data.
Each memory bank can be individually cleared, or
all memory locations in both banks can be cleared
simultaneously.
Do the following to clear memory:
1. Display the MAIN MENU by pressing the
MENU (F2) button. If necessary, press ESC
until MENU appears above F2.
2. Use the
buttons to highlight MEMORY,
and then press ENT to display the MEMORY
MENU.
3. Use the
buttons to highlight one of the
following:
MAIN MENU
FUEL
PRESSURE
MEMORY
SETUP
CALIBRATION
DIAGNOSTICS
STATUS
MENU
F1
F2
F3
MEMORY MENU
MEMORY DIRECTORY
LOGGING DIRECTORY
CLEAR MEMORY DATA
CLEAR LOGGING DATA
CLEAR ALL MEMORY
MENU
F1
F2
F3
CLEAR MEMORY DATA
NO
YES
•CLEAR MEMORY DATA clears only the
individual saved combustion test records.
•CLEAR LOGGING DATA clears only the
combustion test records that were saved
during the logging process.
•CLEAR ALL MEMORY clears all memory
locations in both memory banks.
4. Press ENT to display the CLEAR MEMORY, LOGGING, or ALL DATA conformation screen. Highlight YES to confirm that
memory is to be cleared, and then press ENT
to actually clear memory as evidenced by
the display of the “WAIT Erasing memory”
screen.
4-20
MENU
F1
F2
F3
CLEAR MEMORY DATA
WAIT
Erasing memory
MENU
F1
F2
F3
Instruction 24-9448
Operation
4.16 Downloading Stored Data to a Computer
The combustion test data that was stored in either the analyzer’s Memory
Directory (Section 4.9), or Logging Directory (Section 4.14), can be downloaded to a computer using the PCA 2 Data Recovery Program and USB
cable that are supplied with the analyzer.
The following procedures assume that the operator is familiar with creating folders and navigating the file structure of the Windows operating system. If necessary, consult the Windows help files for instructions on how to
perform these procedures.
The downloaded data is stored on the computer’s hard drive – or ­removable
media of the operator’s choosing – as a comma-separated-value ASCII text
file with a CSV extension. This type of file can be opened by most spreadsheet programs for analysis.
Computer requirements:
•Windows 98SE or higher
•CD ROM drive
•USB 1.1 or USB 2.0 port
•12 MB of hard drive space for the PCA 2 data recovery program, plus
up to an additional 350 KB for each download
Instruction 24-9448
4-21
Operation
4.16.1 PCA 2 Data Recovery Program Installation
The PCA 2 Data Recovery Program is supplied with the analyzer on a CD
(P/N 24-1448). Install this program as ­follows:
1. Insert the PCA 2 CD into the computer’s CD-ROM drive.
2. Locate the CD-ROM drive in Windows Explorer and open the PCA2
folder. Double-click the Setup.exe program to start the installation
process.
3. Click Next on the “Welcome to the ­InstallShield Wizard for PCA2”
­window.
4. Click Next to accept the default destination folder, or click Change to
install to a different folder.
Default
Installation Folder
4-22
Click to change
installation folder
Instruction 24-9448
Operation
5. Click Install to confirm the destination folder and user information.
6. Click Finish after all files have been copied into the destination folder.
7. At this time the PCA2 Data Recovery Program icon should ­appear
under "Start All Programs menu.
8. This completes the installation of the software. Remove CD from drive.
Instruction 24-9448
4-23
Operation
4.16.2 Computer to PCA 2 Connection &
USB Device Driver Installation
Connect the USB cable (P/N 104-4032) that was supplied with the PCA 2,
and, if necessary, install the analyzer’s USB device driver as follows:
1. Insert the PCA 2 CD into the computer's CD-ROM drive.
2. With both the PCA 2 and computer turned ON, connect the PCA 2 to
the computer using the USB cable supplied with the instrument (see
Figure 4-2 in instruction manual)
3..If this is the first time the PCA 2 is being connected to the computer,
then the “Found New Hardware Wizard” should shortly ­appear. Select
“No, not this time” and click Next.
NOTE: The USB
device driver
only needs to be
installed once. It
does not require
to be re-installed
each time the
PCA 2 is connected to the
computer.
Figure 4-2. Computer to PCA 2 Connection
4-24
Instruction 24-9448
Operation
4. Select “Install the software automatically (Recommended)” and click
Next.
Name of new USB
hardware
Select (Advanced).
5. At the Hardware Installation window, click ­Continue Anyway.
6. After the Found New Hardware Wizard has finished installing the
software, click Finish to close the ­Wizard.
Instruction 24-9448
4-25
Operation
4.16.3 Recovering Data
Before data can be recovered from the analyzer, install the PCA 2 Data
Recovery Program, USB cable, and USB ­device driver as described in Sections 4.14.1 and 4.14.2.
Recover either the logging or combustion data as follows:
1. Start the program by either double-clicking the PCA2 icon
the Windows desktop, or clicking the PCA2 shortcut
start menu. The “Bacharach PCA 2 Data Recovery
Program” ­window should appear.
on
in
Observe that the window is divided into two sections. The left-hand
section is used to recover logging data, while combustion data is recovered from the right-hand section.
In the following steps, the logging data will be recovered. The same
procedure can be used to recover combustion data using the righthand section of the window.
2. Select where the downloaded file containing the recovered data will
be located and give it a filename by clicking the Open Log File button.
The following example screens show that the downloaded file will be
placed into a pre-existing PCA2 Logging Data folder and given the
filename ­Customer XYZ.
4-26
Instruction 24-9448
Operation
Use this section
of window
to Recover
Logging Data
Status line
showing PCA 2
is successfully
connected to
the computer
Select a
pre-existing
folder or create
a new folder
to store the
downloaded file
Enter filename
File type preset
to *.cvs
Use this section
of window
to Recover
Combustion
Data
Start the
download
process by
clicking the
desired Open
Log / Data File
button
Click here to
create a new
folder
Click Open after
selecting a folder
and entering a
filename
Location of
downloaded file
Click Start
to begin the
download
process
Total number
of records
received out of
512 total
Status line
showing files
are currently
being received
Instruction 24-9448
4-27
Operation
NOTE: The filename is automatically given a CSV (Comma
Separated Value) extension, allowing the file to be directly
opened by most spreadsheet programs for analysis.
3. After selecting a folder and entering the filename, click Open and then
click Start to begin the download process.
While recovering the stored data, observe that the “Records received”
line displays the total number of records currently downloaded. And
­after all records have been received, the Status line will read “Log files
­finished.” The PCA 2 can download 500 combustion, pressure, and
temperature records from memory, and an additional 500 records from
logged memory.
4. This completes the process of recovering logging data. Either click Exit
to close the program, or proceed to recover the combustion data by
starting over at Step 2, but this time using the right-hand section of
the “Bacharach PCA 2 Data Recovery Program” ­window.
NOTE: Once either the logging data or combustion data has
been recovered, that portion of the recovery program’s ­window
will turn gray.
Status line
showing
recovery
process has
finished
Click Exit
to end the
program
4-28
Instruction 24-9448
Operation
4.17 Importing Saved Data Into a Spreadsheet
Data that was recovered and saved as an ASCII text file with a “CSV”
extension, as described in Section 4.14, can easily be opened for viewing
in most spreadsheet programs by simply double-clicking the filename. For
example: double-clicking the filename Customer XYZ.csv should automatically open the spreadsheet program and display the contents of the file.
If the spreadsheet program does not recognize the “CSV” file extension,
then refer to the spreadsheet’s documentation for information on how to
manually import comma-delimited text files.
Table 4-2 contains a listing and description of the 27 data fields that are
downloaded with each data record. Note that for sensors that are not
installed, all related data fields for those sensors will be marked as “N/A”
(Not Applicable). For ­example: if the analyzer does not contain an SO2 sensor, then “N/A” will appear in data fields 19 and 20.
Instruction 24-9448
4-29
Operation
TABLE 4-2. DOWNLOADED DATA FIELDS
Field
1
2
3-5
6
7
8
9
10
11
%Efficiency
%CO2
Data Name or Value
Date of Test in mm/dd/yy
Time of Test in 12 hour format (AM/PM)
Information Input by User
Fuel Name
Oxygen Level
Carbon Monoxide Level (see field 26)
Carbon Monoxide Level referenced to a
% of O2 (see field 21)
Combustion Efficiency
Carbon Dioxide Level
12
13
14
15
TStk
TAir
TempUnit
%EA
Stack Temperature
Primary / Ambient Air Temperature
Temperature Units
Excess Air
16
17
NO
ppm NO(O2)
18
19
NO2
ppm NO2(O2)
20
NOx
21
ppm NOx(O2)
Nitric Oxide Level (see field 26)
Nitric Oxide Level referenced to a % of O2
(see field 22)
Nitrogen Dioxide Level (see field 26)
Nitrogen Dioxide Level referenced to a
% of O2 (see field 22)
Nitrogen Oxides (NO + NO2) (see field 26)
22
23
SO2
ppm SO2(O2)
24
25
26
27
28
29
30
31
CO_O2Ref
NOx_O2Ref
SO2_O2Ref
Pressure
Pressure Units
Pollution Units
PS Voltage
NO Temp
4-30
Column Name
Date
Time
Test ID
Fuel
%O2
CO
ppm CO(O2)
Nitrogen Oxides Level referenced to a
% of O2 (see field 22)
Sulfur Dioxide (see field 26)
Sulfur Dioxide Level referenced to a
% of O2 (see field 23)
%O2 Reference for CO (1)
%O2 Reference for NOx (1)
%O2 Reference for SO2 (1)
Pressure (Draft) Value
Pressure Units of Measure (2)
Pollution Units of Measure (3)
Power Supply Voltage
Nitric Oxide Sensor Temperature (4)
Instruction 24-9448
Operation
(1) %O2 reference as selected per Section 3.12
(2) Pressure units as selected per Section 3.8
(3) Pollution units as selected per Section 3.9
(4) Shown only on printout, not on LCD display.
4.18 Printing Test Data
Combustion or pressure data that is currently being displayed can be sent
to a printer using IrDA protocol as described below.
Data that is stored in memory can also be ­printed by first displaying the
stored test data as described in Sections 4.13.1 & 4.13.2.
In addition to printing combustion and pressure data, the contents of any
screen that shows the label “PRINT” above the F1 button can be printed.
For example, the information shown in the DIAGNOSTIC screen can be
printed.
1. Turn ON printer. Refer to the printer’s instruction manual for detailed
operating information. If not already done, set up the ­printer for:
• 8 bit
• No parity
• 9600 baud
• IrDA is set to IrDA-SIR
• DTR handshaking
2. Align the printer with the top of the analyzer as shown in Figure 4-6.
3. Press the PRINT (F1) button to begin printing.
The printout shown in Figure 4-6 shows typical combustion-test results of an analyzer containing O2, COLOW, NO, and NO2 sensors. Note
that since the COHIGH and SO2 sensors are not installed, three stars
(∗∗∗) appear in their data fields.
Instruction 24-9448
4-31
Operation
BACHARACH, INC.
PCA 2
SN: xxxxxx
=====================
TIME 01:00:00 PM
DATE 10/06/06
FUEL
NATURAL GAS
3 to 18 in.
(7.62 to 45.72 cm)
Optional
pressure
printout as
selected per
Section 3.13.
PRINT
MENU
SAVE
O2
CO
EFF
CO2
T-STACK
T-AIR
EA
NO
NO Temp
NO2
NOX
SO2
CO(3)
NO(3)
NO2(3)
NOX(3)
SO2(3)
4.0 %
12 ppm
82.6 %
9.5 %
374 °F
68.0 °F
21 %
18 ppm
70.5 °F
6 ppm
24 ppm
∗∗∗ ppm
13 ppm
19 ppm
6 ppm
25 ppm
∗∗∗ ppm
PRESSURE – 0.25 inwc
COMMENTS:
NOTES:
Three stars (∗∗∗) appear in the data
field of sensors that are not calibrated
or installed, and in the data fields of
that sensor’s related calculated values.
Three hyphens or dashes (- - -) indicate
that the calculated data cannot be
displayed because the measured data
necessary to make the calculation is
out of range (i.e., oxygen level above
16%).
Three (XXX) indicate sensor overrange.
Figure 4-3. Printer Alignment & Sample Printout
4-32
Instruction 24-9448
Operation
Instruction 24-9448
4-33
Calibration
5 Calibration
IMPORTANT: Before performing any calibration procedure,
ensure that fresh batteries are installed or use the optional AC
power adapter. Also ensure that the analyzer is at room temperature and will be sampling fresh air when turned ON.
5.1 Smart Sensors
The PCA 2 uses Bacharach’s new “Smart Sensor” technology, meaning
that the calibration data for each sensor is stored in nonvolatile memory
on the sensor’s printed circuit board.
Benefits of Smart Sensors:
• New sensors can be installed without needing to be calibrated.
• Sensors can be pre-calibrated and installed when needed.
• Sensors can be moved from one analyzer to another.
• The analyzer’s diagnostics screen shows what sensors are installed,
and their current end-of-life condition (Good, Low, Bad).
• Each sensor stores its calibration history and operating parameters,
which can be downloaded to a computer and analyzed. This information is useful in determining when the sensor was last calibrated, and
predicting its end-of-life.
The smart sensors should be calibrated by an authorized Bacharach
Service Center (Section 8.3) every 6 months to 1 year to assure that the
analyzer continues to meet its published accuracy specifications. The
smart sensors, however, can be calibrated in the field if your facility has
the necessary equipment and qualified personnel to perform the procedures described in the following sections of this instruction manual.
5.2 Starting a Calibration
Start any calibration procedure by doing the following:
1. Place the probe in an area of fresh air, turn ON the analyzer, allowing
it to cycle through its 60 second warm-up period. During warm-up,
the analyzer’s operation is checked and the sensors are set to the following ambient conditions:
• Oxygen sensor spanned to 20.9%
• All gas sensors are zeroed
• The pressure sensor is zeroed
Instruction 24-9448
5-1
Calibration
Any errors detected during warm-up will
be listed on the display immediately following warm-up. For example, the screen
to the right shows that the battery is low.
Correct any errors before proceeding. Refer
to Section 7.3 for a listing of error messages
and their meaning.
ERRORS DETECTED
Low Battery
2. Display the MAIN MENU by pressing the
MENU (F2) button. If necessary, press ESC
until MENU appears above F2.
3. Use the
buttons to highlight
CALIBRATION, and then press ENT to display the CALIBRATION PASSWORD screen.
4. Before calibration can begin a 4-place alphanumeric password must be entered. Use the
and
buttons to enter the password.
(Note that the default password is 1111)
5. Press the ENT key to accept the password.
If the correct password was entered the
CALIBRATION Menu will be displayed.
6. Use the
buttons to highlight the sensor to
be calibrated, and then perform the calibration procedure for that sensor as described in
the following sections.
MENU
F1
F2
F3
MAIN MENU
FUEL
PRESSURE
TEMPERATURE
MEMORY
SETUP
CALIBRATION
DIAGNOSTICS
STATUS
MENU
F1
F2
F3
Calibration Password
Enter Password
5.3 Pressure Sensor
Calibration
Menu
F1
F2
F3
This procedure calibrates the pressure sensor to a known pressure value.
Material Required:
• Bellows
• Manometer
- Range: ±8 in. of water column (±20 mb)
- Accuracy: ±0.01 in. of water column (±0.025 mb)
Procedure:
NOTE: The unit-of-measure for pressure is selected per
5-2
Instruction 24-9448
Calibration
Section 3.8. In the following procedure inwc is
selected, but note that any unit-of-measure can
be used for calibration purposes.
CALIBRATION MENU
Pressure
T-Stack
T-Air
1. Assemble the pressure sensor calibration
equipment as shown in Figure 5-1, but DO
NOT connect the analyzer to the calibration
equipment at this time.
CO-LO
SO2
NO
NO2
(more)
2. If not already done, turn ON the analyzer and
display the CALIBRATION LIST screen per
Section 5.2.
MENU
F1
F2
CALIBRATE PRESSURE
Measured
3. Use the
buttons to highlight Pressure,
and then press ENT to display the
CALIBRATE PRESSURE screen.
F3
Applied
0.00 inwc
-4.00 inwc
Press ENT
“Measured” is the pressure value currently
being detected by the pressure sensor, while
“Applied” is a known value of pressure that
will be applied for calibration purposes.
to calibrate
06/27/06 11:55:30 PM
PRINT
F1
F2
F3
4. With both the –∆P and +∆P ports open to the
atmosphere, observe that the current Measured pressure reading should
be 0 ±0.01 inwc. If necessary, zero the pressure sensor per Section 4.6, and
repeating Steps 2 thru 4.
5. Connect the hose from the manometer to the +∆P port and apply a
negative pressure to this port by adjusting the bellows for a manometer reading of –4.00.
6. Use the
and
buttons to enter an Applied value that exactly
equals the manometer reading.
2
1
3
POWER
T-STACK
T-AIR
P
4
5
4
3
2
1
0
-1
-2
-3
-4
GAS
Parts:
1. 3/16" I.D. Tubing
2. Tee
3. Barbed Hose Connector
4. Bellows
5. Manometer
Figure 5-1. Pressure Sensor Calibration Equipment
Instruction 24-9448
5-3
Calibration
The calibration range is from –6 to –2 inwc (–15 to –5 mb). An attempt
to calibrate outside this range will cause the message “Applied Value
High” (or Low) to appear at the bottom of the screen.
7. Wait until the Measured reading stabilizes, and then press ENT to calibrate the pressure sensor’s Measured value to that of the Applied ­value;
after which the message “Good Calibration” should briefly appear followed by the CALIBRATION LIST screen being re-displayed.
8. Remove calibration equipment.
5.4 T-Stack Calibration
This procedure first zeros and then spans the stack-temperature channel
to known temperature values.
The use of an electronic thermocouple simulator is the preferred method of
producing the desired calibration temperatures. Alternatively, containers
of ice water and boiling water can be used.
Material Required:
• Thermocouple Simulator (K-type)
- Range: 0 to 600 °F
- Accuracy: ±0.5 °F
• (Alternatively) Ice-Water, Boiling Water, Thermometer
TS-Zero Procedure:
CALIBRATION MENU
1. Set thermocouple simulator to room temperature and plug its output into the T-STACK
connector located at the bottom of the
analyzer.
Pressure
Alternatively: Plug the probe’s thermocouple
into the T-STACK connector located at the
bottom of the analyzer. DO NOT attach the
probe’s gas hose to the analyzer’s GAS
port; otherwise water will be drawn into
the analyzer!
NO
T-Stack
T-Air
CO-LO
SO2
NO2
(more)
MENU
F1
F2
F3
2. If not already done, turn ON the analyzer and display the
CALIBRATION LIST screen per Section 5.2.
3. Use the
buttons to highlight T-Stack, and then press ENT to display the CALIBRATE TS-ZERO screen.
“Measured” is the current temperature reading, while “Applied” is a
5-4
Instruction 24-9448
Calibration
known temperature that will be applied for
calibration purposes.
4. Set thermocouple simulator to 32 °F (0 °C),
and then use the
and
buttons to enter
an Applied value that exactly equals the setting of the simulator.
Alternatively: Submerge probe tip into an icewater bath with a thermometer, wait several
minutes, and then use the
and
buttons
to enter an Applied value that exactly equals
the thermometer reading.
The calibration range is from 32 to 41 °F (0
to 5 °C). An attempt to calibrate outside this
range will cause the message “Applied Value
High" (or Low) to appear at the bottom of the
screen.
CALIBRATE TS-ZERO
Measured
Applied
34 °F
032 °F
Press ENT
to calibrate
06/27/06 11:55:30 PM
PRINT
F1
F2
F3
CALIBRATE TS-SPAN
Measured
574 °F
Applied
572 °F
Press ENT
to calibrate
06/27/06 11:55:30 PM
5. Wait until the Measured reading stabilizes,
PRINT
F1
F2
F3
and then press ENT to calibrate the TS-Zero
Measured value to that of the Applied ­value;
after which the message “Good Calibration” should briefly appear followed by the CALIBRATE TS-SPAN screen.
TS-Span Procedure:
6. Set thermocouple simulator to 572 °F (300 °C), and then use the
and
buttons to enter an Applied value that exactly equals the
setting of the simulator.
Alternatively: Submerge probe tip into a container of boiling water with
a thermometer, wait several minutes, and then use the
and
buttons to enter an Applied value that exactly equals the thermometer
reading.
The calibration range is from 175 to 625 °F (80 to 330 °C). An attempt
to calibrate outside this range will cause the message “Applied Value
High” (or Low) to appear at the bottom of the screen.
7. Wait until the Measured reading stabilizes, and then press ENT to calibrate the TS-Span Measured value to that of the Applied ­value; after
which the message “Good Calibration” should briefly appear followed by
the CALIBRATION LIST screen being re-displayed.
Instruction 24-9448
5-5
Calibration
5.5 T-Air Calibration
This procedure first zeros and then spans the ambient-temperature channel to known temperature values.
The use of an electronic thermocouple simulator is the preferred method of
producing the desired calibration temperatures. Alternatively, containers
of ice water and boiling water can be used.
Material Required:
• Thermocouple Simulator (K-type)
- Range: 0 to 600 °F
- Accuracy: ±0.5 °F
• (Alternatively) Ice-Water, Boiling Water, Thermometer
TA-Zero Procedure:
1. Set thermocouple simulator to room temperature and plug its output
into the T-AIR connector located at the bottom of the analyzer.
Alternatively: Plug the probe’s thermocouple into the T-AIR connector
located at the bottom of the analyzer. DO NOT attach the probe’s
gas hose to the analyzer’s GAS port; otherwise water will be
drawn into the analyzer!
2. If not already done, turn ON the analyzer and
display the CALIBRATION LIST screen per
Section 5.2.
3. Use the
buttons to highlight T-Air, and
then press ENT to display the CALIBRATE
TA-ZERO screen.
“Measured” is the current temperature reading, while “Applied” is a known temperature
that will be applied for calibration purposes.
4. Set thermocouple simulator to 32 °F (0 °C),
and then use the
and
buttons to enter
an Applied value that exactly equals the setting of the simulator.
Alternatively: Submerge probe tip into an icewater bath with a thermometer, wait several
minutes, and then use the
and
buttons
to enter an Applied value that exactly equals
the thermometer reading.
5-6
CALIBRATION MENU
Pressure
T-Stack
T-Air
CO-LO
SO2
NO
NO2
(more)
MENU
F1
F2
F3
CALIBRATE TA-ZERO
Measured
Applied
33 °F
032 °F
Press ENT
to calibrate
06/27/06 11:55:30 PM
PRINT
F1
F2
F3
Instruction 24-9448
Calibration
The calibration range is from 32 to 41 °F (0 to 5 °C). An attempt to
calibrate outside this range will cause the message “Applied Value
High” (or Low) to appear at the bottom of the screen.
5. Wait until the Measured reading stabilizes, and then press ENT to
calibrate the TA-Zero Measured value to that of the Applied ­value;
after which the message “Good Calibration” should briefly appear followed by the CALIBRATE TA-SPAN screen.
TA-Span Procedure:
6. Set thermocouple simulator to 212 °F
(100 °C), and then use the
and
buttons
to enter an Applied value that exactly equals
the setting of the simulator.
Alternatively: Submerge probe tip into a container of boiling water with a thermometer,
wait several minutes, and then use the
and
buttons to enter an Applied value that
exactly equals the thermometer reading.
CALIBRATE TA-SPAN
Measured
210 °F
Applied
212 °F
Press ENT
to calibrate
06/27/06 11:55:30 PM
PRINT
F1
F2
F3
The calibration range is from 194 to 230 °F (90 to 110 °C). An attempt
to calibrate outside this range will cause the message “Bad Calibration
Wrong CAL Entry” to appear in the following step.
7. Wait until the Measured reading stabilizes, and then press ENT to
calibrate the TA-Span Measured value to that of the Applied ­value;
after which the message “Good Calibration” should briefly appear followed by the CALIBRATION LIST screen being re-displayed.
Instruction 24-9448
5-7
Calibration
5.6 CO-LO Sensor Calibration
Note that the CO-LO sensor also measures H2 for the purpose of compensating the CO reading for the presence of H2 in the gas sample. This
procedure first spans the CO-LO sensor and, optionally, spans the H2 part
of the sensor to known gas levels.
Material Required:
• Calibration Kit, P/N 24-7059
• Gas Cylinder: 500 ppm CO in air, P/N 24-0492
• Gas Cylinder: 1,000 ppm CO & 1,000 ppm H2 in Nitrogen, P/N 24-0794
Procedure:
1. If not already done, turn ON the analyzer and display the
CALIBRATION LIST screen per Section 5.2.
2. Use the
buttons to highlight CO-LO, and
then press ENT to display the CALIBRATE
CO screen.
CALIBRATION MENU
Pressure
T-Stack
“Measured” is the current CO reading, while
“Applied” is a known CO level that will be
applied for calibration purposes.
T-Air
3. Attach a 500 ppm CO cylinder to the regulator of the calibration fixture shown in
Figure 5-2 on Page 5-14.
NO2
4. Use the
and
buttons to enter an
Applied value that exactly equals the concentration stamped on the CO cylinder.
The calibration range is from 250 to
1,000 ppm. An attempt to calibrate outside
this range will cause the message “Applied
Value High” (or Low) to appear at the bottom
of the screen.
CO-LO
SO2
NO
(more)
MENU
F1
F2
F3
CALIBRATE CO
Measured 480 PPM
Applied
500 PPM
Press ENT
to calibrate
06/27/06 11:55:30 PM
PRINT
5. Adjust the regulator for a flowmeter indicaF1
F2
F3
tion of approximately 2 SCFH. Wait until the
Measured reading stabilizes (approximately
3 minutes), and then press ENT to calibrate the CO Measured value
to that of the Applied ­value. The message “Good Calibration” should
briefly appear followed by the TEST GAS CO/H2 screen.
If the sensor’s output is low, but still usable, then the message “Good
Calibration WARNING Low Sensor” will appear. The sensor will now
be marked as being Low in the DIAGNOSTICS screen.
5-8
Instruction 24-9448
Calibration
If the sensor’s output is too low to be usable, then the message “Bad
Calibration Sensor End of Life, Entry Not Saved” will appear. The sensor will now be marked as being BAD in the DIAGNOSTICS screen.
NOTE: H2 calibration can be bypassed by pressing the ESC
button, after which the CALIBRATION LIST screen is re-displayed. Skip to Step 10 if the ESC button was pressed.
6. Turn OFF the regulator of calibration fixture and remove the CO
cylinder.
7. Attach a combination 1,000 ppm CO and
1,000 ppm H2 cylinder to the regulator of the
calibration fixture, and then use the
and
buttons to enter an Applied value that
exactly equals the CO concentration stamped
on the cylinder.
8. Adjust the regulator for a flowmeter indication of approximately 2 SCFH, and then press
ENT to display the CALIBRATE H2 screen.
TEST GAS CO/H2
Enter CO VALUE
1000 PPM
06/27/06 11:55:30 PM
PRINT
F1
F2
F3
The calibration range is from 400 to
1,500 ppm. An attempt to calibrate outside this range will cause the
message “Bad Calibration Wrong CAL Entry” to appear in the following step.
9. Wait until the Measured reading stabilizes
(approximately 3 minutes), and then press
ENT to calibrate the H2 Measured value to
that of the Applied ­value; after which the
message “Good Calibration” should briefly
appear followed by the CALIBRATION LIST
screen being re-displayed.
CALIBRATE H2
Measured
1000 PPM
Applied
1000 PPM
Press ENT
to calibrate
06/27/06 11:55:30 PM
PRINT
If the sensor’s output is low, but still
F1
F2
F3
usable, then the message “Good Calibration
WARNING Low Sensor” will appear. The sensor will now be marked
as being Low in the DIAGNOSTICS screen.
If the sensor’s output is too low to be usable, then the message
“Bad Calibration Sensor End of Life” will appear followed by the
CALIBRATION LIST screen being re-displayed. The sensor will now
be marked as being BAD in the DIAGNOSTICS screen.
10. Turn OFF the regulator and remove the gas cylinder.
Instruction 24-9448
5-9
Calibration
5.7 SO2 Sensor Calibration
This procedure spans the optional sulfur dioxide sensor to a known
gas level.
Material Required:
• Calibration Kit, P/N 24-7059
• Gas Cylinder: 100 ppm SO2 in Nitrogen, P/N 24-1158
Procedure:
1. If not already done, turn ON the analyzer and display the
CALIBRATION LIST screen per Section 5.2.
2. Use the
buttons to highlight SO2, and then
press ENT to display the CALIBRATE SO2
screen.
CALIBRATION MENU
Pressure
T-Stack
“Measured” is the current SO2 reading, while
“Applied” is a known SO2 level that will be
applied for calibration purposes.
T-Air
3. Attach a 100 ppm SO2 cylinder to the regulator of the calibration fixture shown in
Figure 5-2 on Page 5-14.
NO2
4. Use the
and
buttons to enter an
Applied value that exactly equals the concentration stamped on the SO2 cylinder.
The calibration range is from 9 to 150 ppm.
An attempt to calibrate outside this range will
cause the message “Bad Calibration Wrong
CAL Entry” to appear in the following step.
CO-LO
SO2
NO
(more)
MENU
F1
F2
F3
CALIBRATE SO2
Measured
Applied
98 PPM
100 PPM
Press ENT
to calibrate
06/28/06 11:55:30 PM
PRINT
5. Adjust regulator for a flowmeter indication
F1
F2
F3
of approximately 2 SCFH. Wait until the
Measured reading stabilizes (approximately
3 minutes), and then press ENT to calibrate the SO2 Measured value
to that of the Applied ­value. The message “Good Calibration” should
briefly appear followed by the CALIBRATION LIST screen being
re-displayed.
If the sensor’s output is low, but still usable, then the message “Good
Calibration WARNING Low Sensor” will appear. The sensor will now
be marked as being Low in the DIAGNOSTICS screen.
5-10
Instruction 24-9448
Calibration
If the sensor’s output is too low to be usable, then the message “Bad
Calibration Sensor End of Life, Entry Not Saved” will appear followed
by the CALIBRATION LIST screen being re-displayed. The sensor will
now be marked as being BAD in the DIAGNOSTICS screen.
6. Turn OFF regulator and remove gas cylinder.
5.8 NO Sensor Calibration
This procedure spans the optional nitric oxide sensor to a known gas level.
Material Required:
• Calibration Kit, P/N 24-7059
• Gas Cylinder: 250 ppm NO in Nitrogen, P/N 24-1156
Procedure:
1. If not already done, turn ON the analyzer and display the
CALIBRATION LIST screen per Section 5.2.
2. Use the
buttons to highlight NO, and then
press ENT to display the CALIBRATE NO
screen.
CALIBRATION MENU
Pressure
T-Stack
“Measured” is the current NO reading, while
“Applied” is a known NO level that will be
applied for calibration purposes.
T-Air
3. Attach a 250 ppm NO cylinder to the regulator of the calibration fixture shown in
Figure 5-2 on Page 5-14.
NO2
4. Use the
and
buttons to enter an
Applied value that exactly equals the concentration stamped on the NO cylinder.
The calibration range is from 9 to 550 ppm.
An attempt to calibrate outside this range will
cause the message “Bad Calibration Wrong
CAL Entry” to appear in the following step.
CO-LO
SO2
NO
(more)
MENU
F1
F2
F3
CALIBRATE NO
Measured 245 PPM
Applied
250 PPM
Press ENT
to calibrate
06/28/06 11:45:30 PM
PRINT
5. Adjust regulator for a flowmeter indication
F1
F2
F3
of approximately 2 SCFH. Wait until the
Measured reading stabilizes (approximately 3 minutes), and then
press ENT to calibrate the NO Measured value to that of the Applied
­value. The message “Good Calibration” should briefly appear followed
Instruction 24-9448
5-11
Calibration
by the CALIBRATION LIST screen being re-displayed.
If the sensor’s output is low, but still usable, then the message “Good
Calibration WARNING Low Sensor” will appear. The sensor will now
be marked as being Low in the DIAGNOSTICS screen.
If the sensor’s output is too low to be usable, then the message “Bad
Calibration Sensor End of Life, Entry Not Saved” will appear followed
by the CALIBRATION LIST screen being re-displayed. The sensor will
now be marked as being BAD in the DIAGNOSTICS screen.
6. Turn OFF regulator and remove gas cylinder.
5.9 NO2 Sensor Calibration
This procedure spans the optional nitrogen dioxide sensor to a known
gas level.
Material Required:
• Calibration Kit, P/N 24-7059
• Gas Cylinder: 100 ppm NO2 in Nitrogen, P/N 24-1157
Procedure:
1. If not already done, turn ON the analyzer and display the
CALIBRATION LIST screen per Section 5.2.
CALIBRATION
2. Use the
buttons to highlight NO2, and
then press ENT to display the CALIBRATE
NO2 screen.
“Measured” is the current NO2 reading, while
“Applied” is a known NO2 level that will be
applied for calibration purposes.
3. Attach a 100 ppm NO2 cylinder to the regulator of the calibration fixture shown in
Figure 5-2 on Page 5-14.
4. Use the
and
buttons to enter an
Applied value that exactly equals the concentration stamped on the NO2 cylinder.
The calibration range is from 9 to 150 ppm.
An attempt to calibrate outside this range will
cause the message “Bad Calibration Wrong
CAL Entry” to appear in the following step.
5-12
MENU
(more)
T-Air
CO-LO
SO2
NO
NO2
CO-HI
T-Ref
MENU
F1
F2
F3
CALIBRATE NO2
Measured
Applied
96 PPM
100 PPM
Press ENT
to calibrate
06/28/06 11:45:30 AM
PRINT
F1
F2
F3
Instruction 24-9448
Calibration
5. Adjust regulator for a flowmeter indication of approximately 2 SCFH.
Wait until the Measured reading stabilizes (approximately 3 minutes),
and then press ENT to calibrate the NO2 Measured value to that of the
Applied ­value. The message “Good Calibration” should briefly appear
followed by the CALIBRATION LIST screen being re-displayed.
If the sensor’s output is low, but still usable, then the message “Good
Calibration WARNING Low Sensor” will appear. The sensor will now
be marked as being Low in the DIAGNOSTICS screen.
If the sensor’s output is too low to be usable, then the message “Bad
Calibration Sensor End of Life, Entry Not Saved” will appear followed
by the CALIBRATION LIST screen being re-displayed. The sensor will
now be marked as being BAD in the DIAGNOSTICS screen.
6. Turn OFF regulator and remove gas cylinder.
5.10 CO-HI Sensor Calibration
This procedure spans the optional carbon monoxide high sensor (4,001 to
20,000 ppm) to a known gas level.
Material Required:
• Calibration Kit, P/N 24-7059
• Gas Cylinder: 4,000 ppm CO in Air, P/N 24-1155
Procedure:
1. If not already done, turn ON the analyzer and display the
CALIBRATION LIST screen per Section 5.2.
2. Use the
buttons to highlight CO-HI, and then press ENT to display
the CALIBRATE CO-HI screen.
“Measured” is the current CO reading, while “Applied” is a known CO
level that will be applied for calibration purposes.
3. Attach a 4,000 ppm CO cylinder to the
regulator of the calibration fixture shown in
Figure 5-2 on Page 5-14.
CALIBRATION MENU
(more)
T-Air
CO-LO
4. Use the
and
buttons to enter an
Applied value that exactly equals the concentration stamped on the CO cylinder.
SO2
The calibration range is from 250 to
11,000 ppm. An attempt to calibrate outside
T-Ref
Instruction 24-9448
NO
NO2
CO-HI
MENU
F1
F2
F3
5-13
Calibration
this range will cause the message “Bad Calibration Wrong CAL Entry”
to appear in the following step.
5. Adjust regulator for a flowmeter indication of approximately 2 SCFH. Wait until
the Measured reading stabilizes (approximately 3 minutes), and then press ENT to
calibrate the CO Measured value to that
of the Applied ­value. The message “Good
Calibration” should briefly appear followed
by the CALIBRATION LIST screen being
re-displayed.
CALIBRATE CO-HI
Measured
3895 PPM
Applied
4000 PPM
Press ENT
to calibrate
06/28/06 09:45:30 AM
PRINT
F1
F2
F3
If the sensor’s output is low, but still usable, then the message “Good
Calibration WARNING Low Sensor” will appear. The sensor will now
be marked as being Low in the DIAGNOSTICS screen.
If the sensor’s output is too low to be usable, then the message “Bad
Calibration Sensor End of Life, Entry Not Saved” will appear followed
by the CALIBRATION LIST screen being re-displayed. The sensor will
now be marked as being BAD in the DIAGNOSTICS screen.
6. Turn OFF regulator and remove gas cylinder.
Leave Top
Port Open
GAS Port
POWER
Parts:
1. Gas Cylinder
2. Regulator *
3. 3/16" I.D. Tubing *
4. Tee *
5. Flowmeter *
6. Barbed Hose Connector *
* Part of Calibration Kit 24-7059
T-STACK
P
T-AIR
GAS
Figure 5-2. Gas Sensor Calibration Equipment
5-14
Instruction 24-9448
Maintenance
6 Maintenance
Customer maintenance of the PCA 2 is limited to the following:
• Battery replacement or charging using AC power adapter (Section 3.2)
• Sensor re-calibration (Section 5)
• Water trap / filter assembly maintenance (Section 6.2)
• Sensor replacement (Section 6.3)
• Probe thermocouple replacement (Section 6.6)
• Pump (gas or purge) replacement (Section 6.7)
• Cleaning the probe (Section 6.8)
All other maintenance should be performed by an authorized Bacharach
Service Center. Refer to Section 8.3.
Instruction 24-9448
6-1
Maintenance
6.1 PCA 2 Disassembly
The following procedure describes how to disassemble the analyzer, while
Figures 6-1 thru 6-4 illustrate how the analyzer is put together.
Tools Required:
• Medium Phillips Screwdriver
Procedure:
Rear Case Screws
(typical 4 places)
1. Unplug all thermocouples from
­bottom of analyzer.
2. Remove battery cover and then
remove batteries.
TIP: In Step 3, if the sensors are
not being replaced, leave the tubing
connected to each sensor’s gas cap,
being careful not to put unnecessary strain on the tubing during the
disassembly process.
3. Pull off sensor retainer; and
then unplug all sensors.
Release and then
remove battery
cover by pushing
latch up
Figure 6-1. Removing Rear Case
4. Lay analyzer face down on a padded work surface; and then using a
medium Phillips screwdriver, remove the unit’s four rear-case screws.
5. Lift rear case from analyzer and set aside.
6. Unplug electrical connectors J8, J9, and J14 from printed circuit
board.
CAUTION: In Step 7, note that there is tubing connected
between the bottom hose-connector plate and the pressure sensor
on the printed circuit board. Do not put unnecessary strain on
this tubing during the disassembly process.
7. Carefully lift battery-and-pump chassis, along with the bottom hoseconnector plate, from analyzer.
8. Lift printed circuit board from analyzer.
6-2
Instruction 24-9448
Maintenance
Sensor Positions
Model
P/N
225
235
245
255
265
275
24-7301
24-7302
24-7303
24-7304
24-7305
24-7306
#1
O2
O2
O2
O2
O2
O2
#2
COLO
COLO
COLO
COLO
COLO
COLO
SO2
NO2
SO2
NO
NO
Position
#3
#4
NO
COHI
Sensors
Sensor Retainer
Type and position
determined by
model number
Gas Pump
Motor Connector
Purge Pump
Motor Connector
Battery & Pump
Chassis
Pressure Sensor
on printed circuit board
Battery Connector
on printed circuit board
+∆P (Top)
–∆P (Bottom)
Gas Pump
Purge Pump
Purge Air In
Hose Connector
Plate
GAS
+∆P –∆P
Pressure
Figure 6-2. Inside View with Rear Case Removed
Instruction 24-9448
6-3
Maintenance
PRESSURE SENSOR
on printed circuit board
OUT
+∆P (Top)
–∆P (Bottom)
PURGE PUMP
–∆P
PRESSURE
IN
To Sensors
+∆P
PURGE AIR
GAS
GAS PUMP
Gas OUT
Gas IN
Models 235 & 245
P/Ns 24-7302 & 24-7303
Model 225
P/N 24-7301
Elbow
Model 255
P/N 24-7304
Elbow
Models 265 & 275
P/Ns 24-7305 & 24-7306
Elbow
Elbow
Figure 6-3. Tubing Connections
6-4
Instruction 24-9448
Maintenance
LCD Connector
(opposite side of board)
Sensor Connector
(typical 4 places)
Factory Test
Connector
J8
Purge
Pump
to J9
J9
Gas
Pump
to J8
Battery
to J14
J14
Wire Routing
Connectors
Lock Tabs
(both ends)
Solder
(2 Places)
Battery
to J14
Red dot on pump
indicates positive
(red wire) connection
Ribbon Cable Conection
between LCD Assembly and
Printed Circuit Board
Solder Connections
Figure 6-4. Wiring
Instruction 24-9448
6-5
Maintenance
6.2 Water Trap / Filter Maintenance
6.2.1 Emptying the Water Trap Chamber
The water trap chamber should be emptied after every test, or when the
water condensate approaches the tip of the riser tube (refer to Section 4.9).
1. Remove water trap chamber per Figure 6-5.
2. Pour out liquid condensate, and then reassemble trap.
6.2.2 Replacing the Filter Element
Replace the filter element when it becomes visibly dirty or becomes saturated with water.
Material Required: • Filter Element, P/N 07-1644
• Small Flat Blade Screwdriver
1. Remove water trap chamber per Figure 6-5.
2. Pry apart filter chamber using a small flat-blade screwdriver. Remove
and discard old filter.
3. Install new filter and reassemble filter chamber, making sure that
surfaces “A” and “B” contact each other.
4. Reassemble trap.
Figure 6-5. Disassembling the Water Trap / Filter Assembly
6-6
Instruction 24-9448
Maintenance
6.3 Smart Sensor Replacement
Bacharach’s Smart sensor technology allows new sensors to be installed
without needing to be calibrated inside the analyzer.
NOTE: Sensors may be purchased with and without the Smart sensor technology
PCB. See Section 6.4 on how to change just the sensor itself. Calibration must be
performed if the sensor is purchased without the Smart technology PCB. Refer to
Section 8.1 Replacement Parts for list of sensors and part numbers of both types.
Replace the oxygen sensor when its automatic calibration fails and the analyzer displays an O2 sensor error at the end of warm up. Refer to Section 4.2.
NOTE: The O2 sensor and PCB is not Smart sensor technology. Only the sensor itself, not the PCB, needs to be purchased when the sensor needs replaced.
Replace a gas sensor when it can no longer be calibrated, as evidenced by
“Bad Calibration Sensor End of Life” being displayed during its calibration
procedure. Refer to Sections 5.6 thru 5.10.
Refer to Section 8.1 for a listing of sensor part numbers. Also, see
Figure 6-2 on page 6-3 for sensor positions.
Do the following to replace a Smart sensor:
1. Turn OFF the analyzer.
2. Remove the battery cover.
3. Remove the sensor retainer.
4. Remove the tubing from the gas
cup of sensor being replaced.
5. Unplug the sensor along with
its printed circuit board from
the analyzer’s main board.
Sensor Retainer
Twist gas cap
bayonet fitting
counterclockwise
to release
6. Remove the sensor’s gas cup
by twisting its bayonet fitting
counterclockwise, and then
pulling the cup straight up.
Gas Cup
Sensor
and Printed
Circuit Board
Sensor electrical
connector mates with
pins on analyzer’s main
board
7. Attach the gas cup to new sensor, making sure that when the sensor
is plugged into analyzer’s main board, the tubing connections on top
of gas cup are aligned as shown in Figure 6-3 on page 6-4.
8. Plug the sensor into analyzer; and then reattach tubing to gas cup.
9. Install the sensor retainer and battery cover.
10. Turn ON the analyzer and confirm that no sensor errors occur during
warm up.
Instruction 24-9448
6-7
Maintenance
6.4 Sensor Only Replacement
1. All sensors are replaced in a similar manner. Do the following to
replace either the O2, CO-LO, CO-HI, NO, NO2, or SO2 sensor. Refer
to Section 8.1 Replacement Parts for list of sensors and part numbers.
2. Turn OFF the analyzer.
3. Remove the battery cover.
4. Remove the sensor retainer.
5. Remove the tubing from the gas cup of sensor being replaced.
6. Unplug the sensor along with its printed circuit board from the analyzer’s main board.
7. Remove the sensor’s gas cup by twisting its bayonet fitting counterclockwise, and then pulling the cup straight up.
8. Carefully remove the old sensor from the Smart sensor PCB, keeping
in mind that there is an adhesive foam disk in between the PCB and
sensor. Gently remove any adhesive from from the PCB.
Important! When replacing the O2 sensor, be sure that the “+” sensor
pin plugs into the PCB socket that is also marked “O2+”.
When replacing an NO sensor, also replace the bias battery.
9. Remove the replacement sensor from its plastic canister. Note that
the CO-LO, CO-HI, SO2, and NO2 sensors have a shorting-spring
installed between two of
Sensor Retainer
their pins. Remove and
discard this spring before
installing the sensor.
10.Place the adhesive disk on
the bottom of the new sensor and plug the new sensor into the sensor PCB.
11.Attach the gas cup to new
sensor, making sure that
when the sensor assembly
is plugged into the analyzer’s main board, the tubing
connections on top of gas
cup are aligned as shown
in Figure 6-3 on page 6-4.
6-8
Twist gas cap
bayonet fitting
counterclockwise
to release
Gas Cup
Sensor
Adhesive
foam
disk
Be sure to remove any
shorting spring from the
new sensor pins before
installing! There is no
shorting spring on the
O2 or NO sensors.
Printed
Circuit Board
Sensor electrical
connector mates with
pins on analyzer’s main
board
Instruction 24-9448
Maintenance
12.Plug the sensor into analyzer; and then reattach tubing to gas cup.
13.Install the sensor retainer and battery cover.
14.Allow the sensor that was just installed time to stabilize in the circuit
before continuing with this procedure. Stabilization time for all sensors (except for the NO sensor) is about 1 hour. The NO sensor baseline
technically requires several days to stabilize but should be sufficiently
stabilized for use in approximately 4 hours.
15.Turn ON the analyzer and confirm that no sensor errors occur during
warm up.
Note: Discard an old sensor in accordance with local and federal hazardous waste disposal laws.
16.Calibrate the new sensor(s) per Section 5 (except the O2 sensor which
does not require calibration).
Instruction 24-9448
6-9
Maintenance
6.5 Nitric Oxide Sensor Battery Replacement
A single lithium battery, located on the NO Smart Sensor assembly, applies
a bias voltage to the NO sensor to prevent the sensor from destabilizing
when the analyzer is turned off. The NO bias battery is expected to last at
least the life of the NO sensor.
Note: It is recommended that the bias battery be replaced whenever the NO
sensor is replaced.
Material Required:
•Bias battery (refer to Section 8.1 Replacement Parts)
Procedure:
1.
Follow the instructions in Section 6.3 Smart Sensor Replacement to
remove the Smart Sensor assembly from position 4.
2.
Remove the old battery from its holder on the Nitric Oxide printed
circuit board.
3.
Insert the new battery with the positive side facing away from the
sensor (the battery contact is stamped with a + symbol) .
4.
Re-install the Smart Sensor assembly.
5.
Before powering up and using the analyzer, allow the Nitric Oxide
sensor to stabilize as described below. Note that recalibration of the
Nitric Oxide sensor is not required after replacing its bias battery.
Depending on how long the Nitric Oxide sensor was without bias
voltage, the time required for the sensor to completely stabilize varies
from less than a minute to several days. Typical stabilization times
are shown below. Generally, however, the sensor is sufficiently stable
after 4 hours for measurement purposes.
6-10
Bias battery removed for . . .
Stabilization time
Less than 15 minutes
Less than 1 minute
Less than 1 hour
Less than 5 minutes
Less than 2 days
Less than 4 hours
Greater than 2 days
Up to 2 days
Instruction 24-9448
Maintenance
6.6 Thermocouple Replacement
Using the appropriate thermocouple replacement kit listed below, replace
the probe’s thermocouple as follows:
Thermocouple Replacement Kits:
Part Number
24-8413
24-8414
24-8415
24-8416
Replaces Thermocouple in a
Probe with a Tube Length of . . .
6 inches
12 inches
24 inches
36 inches
Each kit contains a thermocouple assembly, two O-rings, and two wiresplice connectors.
Tools Required:
•Small Flat Blade Screwdriver
•Wire Cutter
•Wire Stripper
•Slip Joint Pliers
Procedure:
1. Gain access to the thermocouple connections by first removing three
screws from probe handle, and then separating the two handle pieces.
2. Cut wires attached to old crimp connectors, leaving behind as much of
the probe’s thermocouple-connector wire as possible.
Probe Handle
Screws
Figure 6-6. Probe Handle Disassembly
Instruction 24-9448
6-11
Maintenance
3. Pull old thermocouple from probe body and discard.
4. The new thermocouple has been coiled for shipping purposes.
Straighten the thermocouple using your thumb and index finger.
5. If not already done, install supplied O-Rings onto thermocouple.
6. Insert thermocouple into probe body until it “bottoms out.”
7. Strip 1/4 inch of insulation from each of the probe’s thermocouple
­connector wires.
IMPORTANT: In Step 8, the thermocouple wires must first be
twisted together and then crimped.
8. Twist both red thermocouple wires together; insert them into the supplied wire-splice connector; and then crimp the connector using a pair
of pliers. Repeat this step for the yellow thermocouple wires.
9. Reassemble the probe handle, being careful not to pinch the thermocouple wires between the handle pieces. In addition, ensure that the
end of the thermocouple is in front of the rib molded into the bottom
handle piece; otherwise, the handle pieces will not fit tightly together.
Cut away view of Thermocouple
inserted into Probe Body
Thermocouple Assembly
Ensure end of Thermocouple is
in front of plastic rib in handle
O-Rings
Red and Yellow
Thermocouple Wires
When reassembling probe
handle, ensure that the thermocouple wires do not become
pinched around screw hole or
edge of handle
Wire-Splice Connectors
Figure 6-7. Thermocouple Installation and Wiring
6-12
Instruction 24-9448
Maintenance
6.7 Pump Replacement
Parts & Tools Required:
• Replacement Pump:
- Gas Pump P/N 24-1393
- Purge Pump P/N 3015-1716
• Soldering Iron and Solder
• Medium Phillips Screwdriver
• Small Flat Blade Screwdriver
Procedure:
1. Gain access to both the gas and purge pumps by removing the rear
case. Refer to Section 6.1.
2. Unsolder the red and black wires from pump being replaced. Note that
during installation of the new pump, the red dot on the pump motor
indicates the positive (red wire) connection.
3. Do one of the following:
• Gas Pump Removal: Push pump latch toward bottom of analyzer
and lift gas pump out from its mounting location.
• Purge Pump Removal: Insert a small flat blade screwdriver
between the purge pump motor and the pump chassis, and then pry
the pump out from its mounting location.
4. Remove tubing from pump.
+∆P (Top)
–∆P (Bottom)
OUT
5. Install new pump by reversing this procedure.
PURGE PUMP
–∆P
PRESSURE
IN
To Sensors
See Figure 6-3
+∆P
PURGE AIR
GAS
GAS PUMP
GAS PUMP LATCH
Gas OUT
Gas IN
Figure 6-8. Pump Tubing Connections
Instruction 24-9448
6-13
Maintenance
6.8 Cleaning the Probe
The probe tube and gas-sample hose will become dirty under normal use.
Note that the water trap’s filter element should prevent soot from reaching
the analyzer’s internal components. If the probe is not kept clean, it could
become clogged and restrict the flow of gas into the analyzer, resulting in
incorrect combustion test readings and calculations.
NOTE: An analyzer that is used to test natural gas furnaces
normally requires less frequent cleaning than an analyzer used
for testing coal or oil fired furnaces.
Equipment Required:
• Alcohol
• Aerosol Can of Automotive Carburetor Cleaner
• Clean Rag
• Source of Compressed Air (optional)
Procedure:
1. Remove gas-sample hose from top of water trap.
CAUTION: Carburetor cleaner attacks plastic components!
Take precautions not to spray cleaner onto the probe handle or
analyzer.
2. Insert the plastic-spray tube of the carburetor cleaner into the gassample hose, and then liberally spray carburetor cleaner through the
hose and out the probe tube.
3. After spraying, remove all the residual cleaner by repeatedly flushing
the gas hose and probe tube with alcohol.
4. Wipe off the surfaces of the probe and tubing with a clean rag.
5. Allow the parts to dry completely. If available, blow compressed air
through the probe to expedite the drying process.
6. Reconnect gas-sample hose to top of water trap.
6-14
Instruction 24-9448
Troubleshooting
7 Troubleshooting
7.1 Analyzer Repair
It is recommended that field repair of the PCA 2 be limited to:
• Checks of printed circuit board connectors
• Replacing the probe assembly
• Replacing the filter element in the water trap / filter assembly
• Replacing sensors
• Replacing either the gas or purge pump
Information on how to perform these repairs is provided in Section 6.
All other repairs should be performed by an authorized Bacharach Service
Center (refer to Section 8.3). Any repairs performed by an unauthorized service organization will void the analyzer’s warranty and release
Bacharach, Inc. of any implied or written product liability.
7.2 Error Symbols
Error symbols are shown in the data fields of the Combustion Test screens
and on the printout to indicate the following:
- - -” Three hyphens or dashes indicates that the calculated data can-
“
“∗
not be displayed because the measured data necessary to make
the calculation is out of range. For calculations to occur, the oxygen level must be below 16% and the stack temperature must be
below 2,000 °F (1,093 °C).
∗ ∗” Three stars appear in the data field of sensors that are not
installed, defective, or found to be in error during warm-up, and
also in the data fields of that sensor’s related calculated ­values.
For example, if the data field of either the NO or NO2 ­sensor contains three stars, then the NOx data field will also ­contain three
stars.
"X X X" Indicates sensor overrange.
Instruction 24-9448
7-1
Troubleshooting
7.3 Error Messages Displayed After Warm-Up
If there were problems detected during warm-up, error messages that
describe the nature of the problems are displayed immediately following the
analyzer’s 60 second warm-up period.
If problems were detected, the analyzer will not automatically switch to the
Combustion Test HOLD screen after warm-up. The analyzer, however, can
still be used to perform any test that does not depend on the sensor that is
in error. Press the RUN button to manually display the Combustion Test
HOLD screen, and then continue using the analyzer.
The following is a list of the error messages that may appear following
warm-up and their suggested remedies:
Low Battery – Battery voltage is low. Replace or charge batteries per
Section 3.2.
O2 Sensor Missing – Oxygen sensor not installed. Install oxygen sensor per
Figure 6-2 on Page 6-3.
BAD Sensors – The oxygen sensor’s output is too low and can not be
calibrated in the instrument, signifying that the sensor is depleted and
needs replaced. Refer to Section 6.3.
No Smart Sensors Installed – There are no smart sensor(s) installed.
Install sensors per Section 6.3.
Low Sensors - O2, COLO, COHigh, NO, NO2, or SO2 sensor output(s)
were low but still usable. Sensor(s) may need to be replaced in the near
future. Message will indicate which sensor(s) are in warning.
T-STK Disconnected – The probe’s thermocouple is not connected to the
analyzer’s T-STACK connector. Plug the probe thermocouple plug into the
T-Stack connector at the bottom of the instrument.
Warmup Sensor Error - COLO, COHigh, NO, NO2, or SO2 Gas sensor(s) were not zeroed at warmup because of high output. Run instrument on
fresh air then restart instrument to re-zero sensor(s). If message persists,
sensor(s) may need to be replaced. Message will indicate which sensor(s)
are in error.
Stack or Air temperature channel is measuring temperature outside
the range of -4 to 212 F at startup. Make sure that the Stack and Air
thermocouples are sampling ambient room air within the temperature
range at startup. Message will indicate which channel(s) are in error.
7-2
Instruction 24-9448
Troubleshooting
Pressure sensor is measuring pressure outside the range of +/ - 3 inches
of water column at startup. Ensure that the analyzer is sampling
atmospheric pressure and restart.
The analyzer was turned on with the probe sampling flue gas. Move the
probe to fresh air and restart the analyzer.
UNCALIBRATED SENSORS – COLO, COHigh, NO, NO2, or SO2 sensor(s)
do not have a calibration history stored on their printed circuit board.
Calibrate each of the sensors listed per Section 5. Message will indicate
which sensor(s) are in error.
7.4 Diagnostics and Status Screens
The DIAGNOSTICS menu provides information regarding the operation of
the analyzer. Information includes the following:
Time Meters - Displays the run time of the analyzer, sample pump and purge pump in hours of
operation.
Main Diagnostics - Lists the current status of the
Stack and Air Thermocouple channels, Reference
Temperature channel, Pressure channel, and
Battery.
O2 Sensor Life - Displays the approximate
remaining life of the Oxygen sensor.
DIAGNOSTICS
O2 Value: 41mv Good
Smart Sensors
COLO cal Good Sensor
PRINT
MENU
F1
F2
F3
Smart Sensors - Displays the current status of all the smart gas sensors
installed.
Fresh Air Diagnostics - Fresh air diagnostics will cycle the instrument
through the 60 second warm-up to check on the status of all sensors. The
probe must be in fresh air to perform a valid check.
Access the Diagnostic menu as follows:
1.Display the MAIN MENU by pressing the
MENU (F2) button. If necessary, press ESC until
MENU appears above F2.
2.Use the
buttons to highlight DIAGNOSTICS
and then press ENT to display the
DIAGNOSTICS MENU.
Instruction 24-9448
MAIN MENU
FUEL
PRESSURE
MEMORY
SETUP
CALIBRATION
DIAGNOSTICS
STATUS
MENU
F1
F2
F3
7-3
Troubleshooting
3.Use the
buttons to highlight the desired diagnostic topic, and then
press ENT to display the information under that topic.
4.Press ESC key to exit back to the Diagnostic menu or the Menu (F2) key
to exit back to the Main Menu.
The Status screen provides a quick reference to key items when troubleshooting. Access the Status menu as follows:
1.Display the MAIN MENU by pressing the
MENU (F2) button. If necessary, press ESC
until MENU appears above F2.
2.Use the
buttons to highlight STATUS
and then press ENT to display the DEVICE
STATUS screen.
3.Press ESC key to exit back to the Main Menu.
7-4
STATUS
Firmware Ver 1.00
Model 225
Serial # LN1000
1 Smart Sensors
Battery Volt: 4.38 v
Ref Temp: 79.5 °F
No Errors
09/11/06 04:55:18 PM
PRINT
MENU
F1
F2
F3
Instruction 24-9448
Parts & Service
8 Parts & Service
8.1 Replacement Parts
Item
(Fig. 8-1)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
14A
14B
14C
14D
14E
15
15A
15B
15C
16
16A
16B
16C
16D
16E
16F
Description
Part No.
Main PCB Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1442
LCD Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1374
Rear Case. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1381
Top Case. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1382
Battery Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1383
Window. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1385
LCD Frame. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1386
Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1387
Chassis, Battery & Pump . . . . . . . . . . . . . . . . . . . . . . . . 24-1388
Lens, Infrared. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1391
Replacement Pump, Sample Gas . . . . . . . . . . . . . . . . . . 24-1437
Replacement Pump, Purge . . . . . . . . . . . . . . . . . . . . . . . 24-1439
Sensor Retainer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1418
Replacement Hose Connector Plate (complete assy). . . 24-1480
Gas Fitting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1416
Pressure Fitting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1415
E-Clip. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 02-2886
O-Ring, Gas Fitting. . . . . . . . . . . . . . . . . . . . . . . . . . . 105-5102
O-Ring, Pressure Fitting. . . . . . . . . . . . . . . . . . . . . . . 105-5103
Gas Cups:
O2 / SO2 / NO2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1421
COLO. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1422
NO / COHI. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1420
Smart Sensors (pre-calibrated):
O2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1396
COLO. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1395
COHI. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1397
NO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1401
NO2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1399
SO2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1398
Instruction 24-9448
8-1
Parts & Service
Item
(Fig. 8-1)
17
18
19
20
21
22
23
24
25
26
Description
Part No.
Screw, #4 x 1/2 LG. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 02-2144
Battery Clip, Single. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 04-1434
Battery Clip, Double . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1433
Cable Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1410
Tubing, Vinyl, 1/8 ID x 3/16 OD* . . . . . . . . . . . . . . . . . . 03-6104
Tubing, Silicon, 1/16 ID x 1/8 OD* . . . . . . . . . . . . . . . . . 03-6372
Tubing, Silicon, 3/32 ID x 5/32 OD* . . . . . . . . . . . . . . . 103-6101
Tubing, Silicon, 1/8 ID x 3/16 OD* . . . . . . . . . . . . . . . . 103-6102
Tubing, Silicon, 1/8 ID x 1/4 OD* . . . . . . . . . . . . . . . . . . 03-6105
Elbow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 03-6170
* Order tubing by the foot
23
15A
16A
9
15C
16C
23
24
21
20
OR
15A
16F
15A
25 16E
Pressure Sensor
+∆P (Top)
–∆P (Bottom)
26
20
15C
16D
23
15B
16B
20
OR
IN
11
OUT
12
IN (Bottom)
OUT (Top)
23
21
22
14
14C
14A
14B
–∆P
PRESSURE
PURGE AIR
(typical 2 places)
+∆P
(typical 2 places)
GAS
14D
(typical 3 places)
14E
(typical 4 places)
Figure 8-1. Parts (1 of 2)
8-2
Instruction 24-9448
11
19
4
10
7
8
6
2
1
9
14
16
18
15
12
13
3
17
17
5
Parts & Service
Figure 8-1. Parts (2 of 2)
Instruction 24-9448
8-3
Parts & Service
8.2 Accessories
Part No.
Carrying Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-0865
Batteries, 'AA' Alkaline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204-0004
12" Probe, Hose, and Water Trap / Filter Assembly (Fig. 8-2) . . . . . 24-3004
① Water Trap / Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-3265
② Filter Element (3 pack). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 07-1644
③ Thermocouple Replacement Kit, 12" . . . . . . . . . . . . . . . . . . . . . 24-8414
④ Probe Stop. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-0580
⑤ Thumb Screw. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102-0875
⑥ Connector, Gas Sample. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-0877
⑦ Connector, Draft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-0878
PCA 2 Data Recovery Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1425
USB Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104-4032
Instruction Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-9448
Quick Start Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-9449
Standard Accessories
Figure 8-2. Probe, Hose, and Water Trap / Filter Assembly
8-4
Instruction 24-9448
Parts & Service
Optional Accessories
Part No.
AC Power Adapter
(Input: 100–240 VAC, 50/60 Hz; Output: 9 VDC @ 1 A). . . . . . . . 24-1404
Ambient Air Thermocouples (T-AIR), K-Type:
10 ft.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104-1797
1 inch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104-1798
Utility Wand (12 in. ridged probe w/ 5 ft coiled cable). . . . . . . . . 104-1799
Differential Pressure Hose Assembly, 6 ft . . . . . . . . . . . . . . . . . . . . . 24-1103
Calibration Kit
(Includes hoses, adapters, flowmeter; does not include gas cylinders). . 24-7059
Gas Cylinders (103 Liter):
500 ppm CO in air. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-0492
1000 ppm CO & 1000 ppm H2 in Nitrogen. . . . . . . . . . . . . . . . . . . 24-0794
IrDA Printer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1400
Printer Paper :
1 Roll . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 06-8733
5 Roll Pack. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-1310
Probe, Hose, and Water Trap / Filter Assemblies:
6 in. Probe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-3002
24 in. Probe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-3021
36 in. Probe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-3022
Thermocouple Replacement Kits:
6 in. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-8413
12 in. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-8414
24 in. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-8415
36 in. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-8416
Sample Conditioning Probes:
(Recommended when measuring NO2 and SO2)
Heavy Duty (EPA/ETV test verified performance). . . . . . . . . . . . 24-7223
Compact. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-7224
Instruction 24-9448
8-5
Parts & Service
8.3 Service Centers
United States
Bacharach Inc.
621 Hunt Valley Circle
New Kensington, PA 15068
Phone: 724-334-5051
Fax: 724-334-5723
Email: help@bacharach-inc.com
Canada
Bacharach of Canada, Inc.
250 Shields Court Unit #3
Markham, Ontario L3R 9W7
Canada
Phone: 905-470-8985
Fax: 905-470-8963
Email: bachcan@idirect.com
México
Bacharach de México
Playa Regatas No. 473 Tercer Piso
Col. Militar Marte
Delegación Iztacalco, 08830
México D.F.
México
Phones:+52-555-634-7740
+52-555-634-7741
Fax: +52-555-634-7738
Email: bacharachservicio@bacharach.com.mx
Website: www.bacharach-mexico.com
8-6
Instruction 24-9448
Notes:
Headquarters:
621 Hunt Valley Circle, New Kensington, PA 15068
Ph: 724-334-5000 • Fax: 724-334-5001 • Toll Free: 800-736-4666
Website: www.bacharach-inc.com • E-mail: help@bacharach-inc.com
Printed in U.S.A.
ISO 9001:2000
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