Bacharach, Inc. (Bacharach) warrants to the buyer that this product will be free from
material defects, free from manufacturing defects, and will conform substantially to
Bacharach’s applicable specifications at the time of delivery.
Bacharach’s liability and the 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 Bacharach and shown to Bacharach’s reasonable satisfaction to have been defective;
provided that written notice of the defect is given by buyer to Bacharach within two (2)
years after the date of delivery of this Product by Bacharach.
Bacharach warrants to the buyer that Bacharach will convey good title to this product.
Bacharach’s liability and the buyer’s remedy under this warranty of title are limited to:
the removal of any title defects or, at the election of Bacharach, 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 unless in writing and signed by a duly authorized officer of Bacharach.
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.
important feature, operation, etc. Failure to follow this
, result in improper
analyzer is not intended to be used on a
Section 1. Overview
1.1. Introduction
Thank you for investing in a Bacharach Monoxor Plus carbon monoxide (CO)
analyzer. To assure proper use and operator safety, please read the contents
of this manual for important information on the operation and maintenance of
the analyzer.
1.2. Conventions
WARNING:
associated with the use of this equipment. Failure to follow this
information could result in serious personal injury or death.
CAUTION: A caution statement indicates a potentially hazardous
situation which, if not avoided, may result in minor or moderate
injury. Caution statements may also be used to alert against
unsafe practices.
IMPORTANT: An important statement provides emphasis of an
information could void your warranty
operation, or cause equipment damage.
NOTE: A note statement provides emphasis of a feature,
operation, practice, etc.
1.3. Safety
WARNING: This analyzer is not intended to be used as a safety device.
WARNING: When testing an appliance, a full visual inspection of the appliance should be performed to ensure its safe operation.
analyzer should only be opened and/or serviced by authorized
This instrument has not been
CAUTION: When the instrument is used in an inefficient oil-fueled
CAUTION: Do not store instrument or its sensors with solvents or products that contain solvents.
CAUTION: Except for sensor and battery replacement
Bacharach personnel. Failure to comply may void the warranty.
HAZARDOUS AREA WARNING:
designed to be intrinsically safe for use in areas classified as
hazardous locations. For your safety,
DO NOT use it in hazardous
(classified) locations.
CAUTION: Do not use flammable or combustible substances (like
carburetor fluid used for cleaning the probe) near an open flame.
appliance where there is a high emission of soot, the probe’s
sample filter may become clogged. Before every use check the
filter to confirm it is clean or replace it with a new filter.
To prevent soot intake and a clogged filter, a smoke test should be
performed before operating under such conditions. This ensures
that the furnace or boiler is burning at a level appropriate for the
use of this instrument.
1.4. Product Overview
The Monoxor Plus is a portable hand-held carbon monoxide (CO) analyzer for
use in residential and light commercial applications. It is intended to be used
by:
• HVAC contractors
• home inspectors
to detect and display concentrations of CO gas between 0 and 2000 ppm. The
analyzer is capable of testing for CO in both ambient room air and in the fluegas stream of fossil-fuel fired furnaces and boilers. Using the optional
appliance kit, you can measure CO levels emitted from fossil-fuel-based
appliances such as gas stoves and gas fireplaces.
The analyzer detects and displays the presence of CO by first drawing in a gas
sample from the area being tested by the analyzer’s built-in motorized pump.
The gas sample is next directed into a sensor chamber where the sample is
analyzed for the presence of CO. If CO is detected, the CO ppm level is given on
the analyzer’s main display. A trending screen (accessible from the RUN
screen by using the right or left arrow key) shows dynamic CO levels graphed
over a programmable time period (from 30 seconds to 15 minutes). In addition
to the visual notifications, you can set a CO alarm limit, above which an audible
alarm buzzer will beep repeatedly. An audible alarm with a slower beep
frequency occurs when the batteries are low.
A backlight enables the operator to read the display in dimly-lit areas. The
displays and menus are available in multiple languages (English, French and
Spanish).
A permanent record of the detected CO level, along with the current time and
date, can be made by using the optional wireless IrDA printer. Test records can
also be saved in memory.
An ambient CO feature takes approximately 15 minutes to complete and
provides a minute-by-minute snapshot of CO readings, as well as a “Max CO”
value that represents the highest CO reading measured during the entire test.
Results can be saved to memory and/or printed. Use the optional CO
Appliance Kit (P/N 0024-8555) to perform an ambient CO measurement if
required.
A calibration reminder can be set to occur every 6, 8, 10, 12, or 15 months after
the last calibration. (Select “Never” to disable this feature.) Regular calibration
periods of 6 months to 1 year are recommended. The calibration reminder
value sets a time period after which the analyzer displays a calibration
reminder message during warm-up.
To avoid the need for manual CO sensor calibrations, the B-Smart® Sensor
program is supported with the Monoxor
Plus. After enrolling in the program,
pre-calibrated replacement B-Smart® CO sensors are shipped at predetermined intervals of your choice.
• Choose a program start date that best suites your needs.
• Receive a pre-calibrated B-Smart® sensor.
• Return your old sensor in a returnable, pre-labeled container.
Benefits include no downtime, self calibration, convenience, and cost savings.
For additional information about the B-Smart® Calibration Program, contact
Bacharach at 1-800-736-4666 or email Help@MyBacharach.com.
A programmable inactivity timeout causes the analyzer to initiate shutdown
mode if no key presses occur for the specified time period. If the analyzer
initiates automatic shutdown or is turned OFF manually while a high level of CO
is still present within the unit, the automatic CO purge feature forces the
analyzer’s pump to remain on until the detected CO level drops below 50 ppm.
The instrument is supplied with the following components:
• probe and hose assembly
• four disposable “AA” alkaline batteries
• hard carrying case
• factory-calibrated and installed CO sensor.
Depending on the model and kit, some or all of the following components are
included:
• spare filters
• Fyrite
User Software (FUS)
• USB cable (type A to mini B)
• Infrared Data Association (IrDA) printer with four disposable “AA”
alkaline batteries
•printer paper.
Using the optional thermocouples, ambient and flue gas temperatures can be
measured. Additionally, the Monoxor® Plus can calculate a differential
temperature based on two sampled temperatures (T1 and T2) using the
optional stack thermocouple or optional probe assembly (with built-in
thermocouple). After you take the two sample readings, the differential value
(T1-T2) is calculated, optionally saved in memory, displayed on the main run
screen, and is shown on printouts.
o Field-replaceable electrochemical sensor (B-Smart
o Temperature measurement using a Type K thermocouple (with
probe assembly 19-7111)
•Power (pp 10, 13)
o 4 AA alkaline batteries (included)
o 4 AA lithium batteries
o 4 AA rechargeable batteries (externally charged)
o Low battery warning
• Testing Features (pp 17, 19, 28, 29, 30, 31)
o Complete test results (10 sets) can be stored, recalled, displayed,
and printed
o Time and date stamping of test results
o Differential temperature
o Secure calibration function (password protected)
o Auto power-off feature with sensor purge feature
o Status and diagnostic menus
o Ambient CO
• User Customizations (p 20)
o Multi-language interface
o Auto/Manual zero functions for the CO sensor
o Customized user information (3 lines of 20 characters)
o Customized logo on printouts (192 x 384 pixels)
o Temperature unit selection
• Hardware (pp 6, 11, 32, 38)
o Probe/hose assembly for gas transport
o Sample pump to provide gas sample delivery
o Backlit monochrome graphic LCD
o Hard carrying case
o USB 2.0 (mini-B connection) for PC interface and communications
A rigid stainless steel probe with handle is connected to a flexible hose with an
integral water trap/filter and is used to draw a gas sample into the analyzer
from the room, grilles, diffusers, and furnace flues.
1. Inspect the flexible hose for cracks. If a hose is defective, replace the entire
probe assembly.
2. Before using the analyzer, check that the water trap/filter is clean and dry.
If necessary, dry out the trap and replace the filter element.
3. Push the probe’s “sample gas” tubing onto the GAS inlet connector.
Check the Monoxor Plus for sufficient power prior to
each use. Replace the batteries if the low (or replace)
battery symbol appears in the upper right corner of
the Monoxor
Plus screen.
Batteries (4 AA, Fresh or Fully Charged)
Alkaline (disposable) 15 hours
Lithium (disposable) 20 hours
Rechargeable 8 hours
Estimated Life Span in Hours
(Continuous, Pump On)
Replace batteries as follows.
1. Remove the battery cover from the back of analyzer.
2. If old batteries are installed, remove them and properly discard them.
3. Observing the polarity markings inside the battery compartment,
install four ‘AA’ disposable (alkaline or lithium) batteries or four fullycharged (externally charged) AA rechargeable NiMH batteries.
4. Replace the battery cover.
NOTE: The Monoxor
batteries.
NOTE: The Monoxor
that the batteries need to be replaced.
When the analyzer is in CO Manual mode, the analyzer will
NOTE: A Set Clock error message
instrument is without power for an extended period of time.
2.4. Turning On the Monoxor Plus
To turn on the Monoxor Plus, press the PWR button.
NOTE: After turning on the Monoxor
Plus, it performs a warm-up
procedure which includes an auto-zero procedure (when in Auto
Zero mode) for the sensors (see pages 15 and 26
be sure to turn on the Monoxor
Menus and the items contained within them are described in a top-down
fashion, starting from the startup screens and working sequentially through the
menus and menu items.
3.2. The Warm-up Sequence
Boot Screens Description
Splash screen shows the Bacharach logo with version,
model number, and serial number information. This
screen is displayed for approximately 3 seconds.
A warm-up screen is displayed during which the
instrument is purged and initialized. The current zero
setting for the CO sensor (Auto-Zero or Manual Zero)
is displayed briefly, followed by a countdown timer
during initialization (see page 26 and page 46).
If any errors are detected during warm-up
corresponding error messages are displayed, after
which the user presses F2 to go to the Menu, or
presses RUN/HOLD to go to the Hold screen. (See
When initiated, the Ambient CO feature monitors CO
values continuously and captures a reading every
minute for 15 minutes (a total of 16 readings from t
to t
).
15
Press ENTER to initiate the Ambient CO test. This
begins a 15-minute test cycle, during which a status
screen is displayed. It shows the starting ambient CO
value, the current CO value, and the elapsed time into
the test.
0
NOTE: Press the F2 key to cancel a test
in progress.
After the test is complete, the Ambient CO Summary
screen is displayed. This is a scrollable window that
shows the 16 CO “snapshot” readings, as well as the
maximum CO reading that was sampled during the
entire test.
NOTE: The Max CO Reading is the highest
sampled CO reading – even if the reading
was taken in between one of the sample
“snapshot” readings.
The test results can be printed by pressing F1 and
saved to memory (with a time and date stamp) by
pressing F3. Press F2 to return to the menu.
NOTE: Any over-range CO values (e.g., CO
> 2000 ppm) are displayed as “xxx”.
3.5. Differential Temperature Menu
Diff Temp Function
The Diff Temp option is used to calculate a differential
temperature based on two sampled temperatures.
temperature (Temp) is displayed. Values for T1 and T2
will show no readings until they are saved by the
operator, after which a differential value (T1-T2) will
also be displayed.
With temperature #1 (T1) selected, p
thermocouple in the target location, and wait for the
temperature reading (Temp) to stabilize. Press the
SAVE button to temporarily store the T1 value. Repeat
these steps for the temperature #2 (T2). After saving
both values, the “T1-T2” differential temperature will
be displayed. At this point, you may press SAVE again
to save the differential temperature value to memory
so that it can be retrieved and/or printed later.
Note that a negative differential value will be
displayed if T1<T2.
NOTE: The Differential Temperature feature requires the use of
the optional thermocouple (P/N: 0104-1797) or the optional probe
assembly (P/N: 0019-7111).
3.6. Memory Options Menu
Memory Options Function
Access the Memory Directory.
This directory contains a numbered list of saved tests
(starting at “1”) to a maximum of 10 test records. “NO
DATA” is displayed if no tests were saved since the last
time that memory was cleared. A “Memory Full”
message is displayed if you try to save an 11
To view saved data, use the UP () and DOWN ()
arrow buttons to highlight the desired test from the
list. Press the ENTER button to display the saved data.
th
test.
Prompts user before clearing all saved tests from
memory. Selecting NO returns the display to the
Memory Options menu.
Selecting YES clears the memory and displays the
Memory Cleared message.
The zoom options selects the size of the characters on
the Run/Hold screen. Three options are Standard, 2x,
and 3x. Options are shown below with their respective
Run/Hold screens. Use the UP () and DOWN ()
arrow buttons to scroll through display items that
don’t fit on the screen.
Provides an interface for entering user identification
information used on printouts
Username fields contain the HVAC company and
related information.
NOTE: This data can be entered using the
Fyrite
User Software (FUS).
Use the UP () and DOWN () arrow buttons to
choose a row and press ENTER to begin editing the
selected row. Then use the UP () and DOWN ()
arrow buttons to select the desired letter, number, or
special character for the current text position.
/ ! @ # $ & * - ‘ <SPACE> a-z A-Z 0-9
Use the LEFT () and RIGHT () arrow buttons to
move the cursor horizontally on the selected row and
repeat the character selection process for each text
position. When finished, press ENTER to save the
row’s changes. Repeat for all 3 lines. Then select EDIT
COMPLETE and press ENTER to finish.
The Language Selection option allows the user to
choose a language for all menus. Use the UP () and
DOWN () arrow buttons to scroll through language
options. Use ENTER to enable the selected language.
Three languages are available: English, French, and
Spanish.
The button sound option is used to select whether or
not the analyzer makes an audible sound every time a
key is pressed. Select OFF to disable this feedback, or
ON to enable this feedback. Then press ENTER to
select, or ESC to discard changes.
The CAL Reminder Period option sets a time period
after which the analyzer displays a calibration reminder
message during warm-up. Calibration reminders can
be set to occur never, 6, 8, 10, 12, or 15 months after
the last calibration. Select NEVER (the default setting)
to disable this feature. When the preset period is
exceeded the instrument will display the reminder, and
how long since the sensor was last calibrated. If a
calibration reminder is displayed, the operator can
press the RUN/HOLD key to move to the RUN/HOLD
Screen
periods of 6 months to 1 year are recommended.
Set the calibration reminder period as follows:
1. Use the UP () and DOWN () arrow buttons to
select the desired time period.
2. Press ENTER to save the selection or ESC to revert
Provides a list from which to select an inactivity (key
press) timeout for automatic shutdown. If no key
presses occur for the time specified, the Monoxor
Plus initiates an automatic shutdown.
Use the UP () and DOWN () arrow buttons to scroll
through Inactivity Timeout options (None [default], 20,
30, or 60 minutes). Use the ENTER key to enable the
selected timeout.
Provides a list from which the user may chose a
minimum purge duration time (minimum length of
time that the pump continues to run) after shutdown is
initiated. Use a longer Post-Purge Period
Monoxor Plus has been exposed to high
concentrations of CO gas. Use ENTER to enable the
selected Post-Purge Period. “PURGING SENSORS” is
displayed on the shutdown screen if a Post-Purge
Period is enabled.
Use the UP () and DOWN () arrow buttons to scroll
through Post-purge Period options.
The Date Format option provides a list from which the
user may select the desired date format used by the
instrument.
• MM/DD/YY (w/ 12-hour time format)
• DD/MM/YY (w/ 24-hour time format)
Use the UP () and DOWN () arrow buttons to
highlight the desired date format. Press ENTER to save
new date format. Press ESC to quit without saving.
Provides a list from which the user may select the
desired method for zeroing the CO sensor.
• Auto-Zero happens automatically at warm-up.
• Manual zero is used to initiate the zeroing process
whenever desired.
Use the UP () and DOWN () arrow buttons to
highlight the desired zeroing method.
Press ENTER to save. Press ESC to quit without saving.
CO AUTO ZERO CO MANUAL ZERO
By default, the Monoxor Plus automatically zeroes all
sensors on ambient air when the instrument is turned
on.
The Monoxor
Plus can be set to perform and store a
manual zero for the CO sensor. The instrument uses
the stored value to indicate background CO values
after warm-up instead of performing an auto-zero on
the background gas.
The CO Alarm Limit option is used to enable and
disable the alarm limit feature.
If enabled (ON), an additional screen is displayed
where you set the CO alarm setpoint. The alarm limit
is selectable from 0 to 2000 ppm. Use the Up and
Down arrow buttons to scroll to the desired alarm limit
value then press ENTER.
Note that scrolling wraps forward and backwards, so
pressing the down arrow at 0 ppm wraps backwards to
2000. Similarly, pressing up arrow at 2000 ppm wraps
forward to 0 ppm.
When the CO Alarm Limit option is enabled, the builtin buzzer will sound if CO readings exceed the CO
alarm limit that you defined.
Calibration is performed by applying known values and
accessing the password-protected menu items. When
the Calibration Menu is selected, the user must enter a
4-digit numeric security code in order to proceed to
the calibration options. The default password is 1111.
Use the UP () and DOWN () arrow buttons to scroll
through numerals 0-9 until the desired numeral is
reached. Press ENTER to advance to the next position
of the password. Press ENTER after all four digits are
set. Press ESC to return to the SETUP MENU.
Refer to Chapter 5 (page 39) for additional screens and
calibration procedures.
NOTE: The calibration password can be
changed through the Fyrite User
Software (FUS).
Displays information about the measurement sensors
of the instrument.
Displays fresh air diagnostics similar to the display at
warm-up. After the warmdetected errors are displayed. Otherwise, a “Success”
message is displayed.
This is the device status screen which displays
information about the device. Some of the
information displayed on this screen includes serial
number, firmware version, model number, etc.
• the power is ON and sufficient (one of the following):
o four new batteries (AA alkaline)
o four new batteries (AA lithium)
o four fully-charged AA rechargeable batteries
•the warm-up process has completed in fresh air without interruption
or errors.
4.2. Taking a Gas Sample
IMPORTANT: Important! If the CO channel is set up for Auto Zero
(refer to Section 3.4.3), ensure that the analyzer will be sampling
fresh air (containing no CO) when turned ON.
Turn ON the analyzer by pressing the PWR button. Observe that when power is
first applied, the software revision level is first displayed followed by a screen
that counts down the warm-up period. The warm-up period is either
30 seconds or 60 seconds depending on the setting and sensor condition.
Plus, you simply. . .
Following warm-up (and an optional error screen), the Main Menu screen
appears. If the probe is being used, insert the probe tip into the area to be
sampled. Press the Run/Hold button once to display the HOLD screen (last
values), and a second time to display the RUN screen (dynamic display of
current CO level in ppm, temperature, and min/max CO values.
NOTE: Use the left or right arrow buttons from the Run or Hold
screen to view the CO trending graph.
4.4. CO Trending Graph
A trending screen is accessible from the RUN or HOLD screen by using the right
of left arrow keys. The CO Trending Screen shows dynamic CO levels graphed
over a programmable time period. User-selectable time periods are:
• 30 seconds
• 1 minute
• 3 minutes
• 5 minutes
• 15 minutes.
The graph continues to sample CO gas while in RUN mode, showing the current
PPM reading above the dynamic graph. Press the RUN/HOLD button (HOLD
mode) to freeze the current graphical snap-shot. In HOLD mode, a pointer
appears on the graph. This pointer can be moved along the graph using the left
and right arrow keys. As you move the pointer left and right, the value of the
CO at that point in the sampling is displayed at the top of the screen.
4.5. Ending a Test
WARNING: Burn Hazard. Do not touch the probe after removing
it from a flue. Allow the probe to cool before handling (about 5
minutes).
After taking a gas sample, remove the probe and take the analyzer to an area
containing fresh air. Allow the pump to run until the CO reading drops to near
zero.
In certain combustion applications, it may be desirable to have a differential
temperature measurement. Use the Diff Temp menu and either the optional
probe assembly with thermocouple (P/N 0019-7111), or one of the optional KType thermocouples (P/N 0104-1798 or P/N 0104-1797) to accomplish this
task.
The Monoxor
sampled temperatures (T1 and T2) which it reads from the optional probe
assembly’s thermocouple (which is connected to the T-STACK connector of the
instrument). After you take the two sample readings, the differential value
(T1-T2) is calculated, optionally saved in memory, displayed on the main run
screen, and is shown on printouts. Use the following procedure to perform a
differential temperature measurement.
Step Example Procedure for Taking Differential Temperature Measurements
1 Attach the thermocouple plug of the optional probe assembly to the
2 From the Main Menu, select the Diff Temp option. When this option is
Plus calculates the differential temperature based on two
T-STACK connector on the bottom of the Monoxor
first selected, the current temperature (Temp) is displayed. Values for T1
and T2 will show no readings until they are saved by the operator, after
which a differential value (T1-T2) will also be displayed.
Plus.
3 With T1 highlighted, position the probe at desired location #1.
4 After a T1 temperature reading is displayed and stabilizes, press the F3
(SAVE) button to store the current T1 temperature reading. The T2
temperature reading is highlighted.
5 Move the probe to desired location #2.
6 After a T2 temperature reading is displayed and stabilizes, press the F3
(SAVE) button to store the current T2 temperature reading.
7 The temperature differential temperature (T1-T2) will be displayed.
screens, viewing results, saving results to memory, and printing
Step Example Procedure for Taking Differential Temperature Measurements
8 At this point, you may press SAVE again to save the differential
temperature value to memory so that it can be retrieved and/or printed
later.
9 Carefully remove the probe assembly and allow it to cool.
NOTE:
A negative differential value will be displayed if T1<T2.
4.7. Timed Ambient CO Testing
This procedure takes approximately 15 minutes to complete and provides a
minute-by-minute snapshot of CO readings, as well as a “Max CO” value that
represents the highest CO reading measured during the entire 15-minute test.
Results can be saved to memory and/or printed. Use the optional CO
Appliance Kit (
ambient CO measurement.
Step Example Procedure for Taking Ambient CO Measurements
1 Attach optional appliance kit probe (P/N 0024-8555) if required.
2
3
4
5
6
7
8
P/N 0024-8555) and the following procedure to perform an
Turn on the Monoxor Plus in a fresh air environment and wait for
initialization to complete.
Verify successful initialization (no errors).
Check battery status (see page 13). If battery life is questionable,
replace the batteries, as the Ambient CO test takes approximately
15 minutes to complete.
Move instrument to target location to be tested.
Press F2 to display the Main Menu.
Use the down arrow to highlight Ambient CO Test and press the
ENTER button.
Follow the on-screen instructions to initiate the test.
Refer to page 17 for details on navigating the ambient CO test
The instrument has the ability to store, recall (to the display), and print sets of
time- and date-coded test records. The time and date are set through software
menu selections.
•Displaying stored records is done through the MEMORY DIRECTORY
MENU.
•Press F1 to print displayed test records.
Step Example Printing Procedure Using Optional IrDA Printer
1
Monoxor
Print option.
2 Check for a sufficient supply of paper and batteries in the IrDA printer.
3 Turn on the printer.
4 Position the printer within 8 to 16 inches (20 to 41 cm) from the
instrument and at no greater than a 60-degree angle.
5 Press F1 to print.
6 Turn off printer when complete.
Plus should be turned on and displaying a screen with an F1
Plus provides three lines of 20 characters for user information.
This information will appear with test records when they are printed. User
name and optional information are entered via software menu selections in the
SETUP MENU or via the Fyrite
User Software (FUS).
In addition to the three lines of text, the Monoxor Plus can be setup to include
a custom logo on printouts. Logos are loaded into the instrument using the
Fyrite
User Software (FUS). Logo size is limited to 192 x 384 pixels (height x
width) and must be in one of the following formats: .BMP, .JPG, .PNG, or .TIFF.
For best results, the logo should be saved in black and white.
4.9. Turning Off the Analyzer
Turn OFF the analyzer by pressing the power button and holding for
approximately 2 seconds. The analyzer will count down from 5 seconds before
turning OFF. Pressing ENTER, however, will abort the count down and keep the
analyzer ON.
4.10. PC Interface and Fyrite User Software
A PC with Fyrite User Software (FUS) installed can set, edit, and transfer the
following:
An analyzer that tests natural gas furnaces normally
Section 5. Calibration and Maintenance
5.1. Serviceability
The instrument operator is able to easily replace the following components
without the use of tools:
• probe assembly
• probe filters
• batteries
• B-Smart
• printer paper.
Additionally, a technician, with the use of factory-provided instructions, can:
• perform basic diagnostics
• confirm proper operation
before putting the unit back into service. Field calibration is also possible with
the proper equipment. Refer to the calibration section for more information.
5.2. Cleaning the Probe
The probe tube and gas sample hose will become dirty under normal use.
CO sensor
NOTE: The 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 test readings.
NOTE:
requires less frequent cleaning than an analyzer used for testing
coal- or oil-fired furnaces.
NOTE: If the correct code was entered, the analyzer accepts it
and returns to the CALIBRATION MENU. If an incorrect code
was entered, the screen will display "Invalid Code." Check to
make sure the correct code has been entered. If problem
persists, contact your nearest Bacharach Service Provider.
NOTE: B-SMART codes can be entered through the Fyrite
User Software (FUS).
NOTE: Installing a B-SMART sensor forces the instrument to perform a
zero function (either manual or automatic).
NOTE: Bacharach offers a convenient Exchange
customer to regularly receive pre-calibrated
replacement sensors that include a code that can
be entered into the analyzer for a quick convenient
setup. Contact Bacharach customer service for
more details about this program.
B-SMART CO Sensor Replacement
5.5. Temperature Calibration
This procedure first zeroes and then spans the temperature channel to known
temperature values.
The use of an electronic thermocouple simulator is the preferred method of
producing the desired calibration temperatures. Alternatively, ice and boiling
water baths can be used.
1 Plug the simulator into the TEMP connector located at the bottom of the
analyzer.
Alternatively: Plug the probe's thermocouple into the TEMP connector
located at the bottom of the analyzer if using optional probe with
thermocouple accessory (P/N 0024-7111).
IMPORTANT: 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
Menu. Note that this requires password validation (see page 28).
3 Use the UP () and DOWN () arrow buttons to highlight Temperature, and
then press ENTER to display the CALIBRATE TS-ZERO screen.
"Measured" is the current temperature reading. "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 UP (), DOWN
(), LEFT (), and RIGHT () arrow buttons to enter an Applied value that
exactly equals the setting of the simulator.
Alternatively: Submerge probe tip into an icethermometer, wait several minutes, and then use the UP () and DOWN ()
arrow buttons to enter an Applied value that exactly equals the thermometer
reading.
NOTE: 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 ENTER 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.
6 Set thermocouple simulator to 572° F (300° C), and then use the UP (),
DOWN (), LEFT (), and RIGHT () arrow 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 arrow buttons to enter
an Applied value that exactly equals the thermometer reading.
NOTE: The calibration range is from 175 to 625° F (80 to
329° 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 ENTER 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 menu being re-displayed.
5.6. CO Sensor Calibration
5.6.1. Materials Required
Calibration kit, P/N 0024-7059
•
Gas cylinder: 500 ppm CO in air, P/N 0024-0492
•
5.6.2. CO Manual Zero Procedure
The CO zeroing process is done automatically during warm-up or manually
using the manual zero feature (see page 26). To perform a manual zero, follow
the steps below. If your instrument is configured for CO auto zero, then skip
this CO manual zero procedure and go to the CO Sensor Span procedure that
follows.
Step Manual CO Zero Procedure
1 If not already done, turn ON the analyzer and display the Main Menu screen.
2 Use the UP () and DOWN () arrow buttons to select the SETUP menu and
press ENTER.
3 From the Setup Menu, use the UP () and DOWN () arrow buttons to
select the CO Zero Setting parameter then press ENTER.
4 From the CO Zero Setting screen, use the DOWN () arrow button to select
the Manual Zero option then press ENTER. A reminder screen to place the
instrument in fresh air is displayed.
5 Press ENTER and wait for the manual zero to complete.
5.6.3. CO Sensor Span Procedure
Step CO Span Procedure
1 From the Calibration Menu (see page 28), use the UP () and DOWN ()
arrow buttons to highlight CO, and then press ENTER to display the
CALIBRATE CO screen. This requires password validation (see page 28).
“Measured” is the current CO reading, while “Applied” is a known CO level
that will be applied for calibration purposes.
2 Use the UP (), DOWN (), LEFT (), and RIGHT () arrow buttons to enter
an Applied value that exactly equals the concentration stamped on the CO
cylinder.
NOTE: Bacharach recommends using a 500 ppm calibration gas,
however the calibration range is from 20 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.
3 Attach a 500 ppm CO cylinder to the regulator and connect calibration kit
components as shown below. Apply 500 ppm carbon monoxide in an air
balance calibration gas.
4 Wait until the Measured reading stabilizes and then press ENTER. The
message “Good Calibration” should briefly appear.
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 Warm-up 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.
5 Close the regulator and remove the CO cylinder.
5.7. T-Ref Sensor Calibration
The T-Ref sensor is located inside the instrument. Calibration is done at the
factory and should not need to be done in the field.
The manufacturer of the products
covered by this declaration:
Year conformity is declared: 2013
Product(s): CO Analyzer
Model(s): Monoxor Plus
The undersigned hereby declares that the above referenced product is in conformity
with the provisions of the following standards and is in accordance with the following
directive.
Directive:
2004/108/EC EMC Directive
Standard(s):
EN 50270: 2006
Signature:
Name: Doug Keeports
Title: President
Date: June 27, 2013
The technical documentation file require d by this directive is ma intained at the corporate headquarters of Bacharach, Inc.
Electromagnetic Compatibility (Immunity): Electrical
Apparatus for the Detection and Measurement of
Combustible Gases, Toxic Gases, or Oxygen