Bacharach Monoxor II User manual

MONOXOR II
INSTRUCTION 0019-9113
Portable CO Analyzer
Part No. 0019-7034 & 0019-7039
Rev. 8 - May 2010
Bacharach, Inc.
621 Hunt Valley Circle, New Kensington, PA 15068
PH: 1-800-736-4666 • FAX: [phone] • Web: www.mybacharach.com
E-mail: [email protected]
Printed in U.S.A. ® Registered Trademarks
®

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
warrantyarelimitedtotherepairorreplacement,atBacharach’soption,ofthisProduct
orpartsthereofreturnedtoSelleratthefactoryofmanufactureandshowntoBacharach
Inc.’s reasonable satisfaction to have been defective; provided that written notice of
the defect shall have been given by Buyer to Bacharach Inc. within one (1) year after
the date of delivery of this Product by Bacharach, Inc.
Bacharach, Inc. warrants to Buyer that it will convey good title to this Product.
Bacharach’s liability and Buyer’s remedy under this warranty of title are limited to
the removal of any title defects or, at the election of Bacharach, to the replacement of
this Product or parts thereof that are defective in title.
All expendable items, such as electrochemical sensors, are warranted for a period of
six months.
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 WARRAN-
TIES OF MERCHANTABILITYAND FITNESS FORAPARTICULAR PURPOSE:
AND (II) ANY OBLIGATION, LIABILITY, RIGHT, CLAIM OR REMEDY IN
CONTRACT OR TORT, WHETHER OR NOTARISING FROM BACHARACH’S
NEGLIGENCE,ACTUALORIMPLIED.TheremediesoftheBuyershallbelimitedto
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.
A
Declaration of Conformity
Manufacturer's Name: Bacharach, Inc.
Manufacturer's Address: 621 Hunt Valley Circle
New Kensington, PA 15068
Product Name: MONOXOR II
Conforms to the following product specifications
EMC: European Directive 89/336/EEC
EN 500081-1 (Emissions)
EN 500082-1 (Immunity)
Copyright © 1995-2010 Bacharach, Inc.

1
WARNING!
Because this instrument is used to detect and monitor materials and conditions which are
listedbyOSHAorothersaspotentiallyhazardousto personnel and property,theinformation
inthismanualmustbefullyunderstoodandutilizedtoensurethattheinstrumentisoperating
properly and is both used and maintained in the proper manner by qualified personnel. An
instrumentthatisnot properlycalibrated,operatedand maintained byqualifiedpersonnelis
likelyto provideerroneousinformation, whichcould preventuser awarenessofa potentially
hazardous situation for the instrument user, other personnel and property.
If, after reading the information in this manual, the user has questions regarding the op-
eration, application or maintenance of the instrument, supervisory or training assistance
should be obtained before use. Assistance is available by calling your nearest Bacharach
Service Center.
Figure 1. Monoxor II
1 INTRODUCTION
The Monoxor® II is a commercial-grade
portable instrument designed to display
concentrations of carbon monoxide (CO)
gasbetween0and2000 ppm.Thisinstru-
ment shows the presence of CO in a gas
samplebydrawingthesampleintoitssen-
sorchamberbyabuilt-inmotorizedpump.
Part#0019-7034comeswithaprobe.Part
#0019-7039 comes without a probe (All
non-probe related functions remain the
same in this instruction).
Other features and accessories of the
Monoxor II include: A large, back-lit
Liquid Crystal Display (LCD), which al-
lows the display to be read in any lighting
condition from direct sun-light to total
darkness; a semi-detachable elastic strap
that permits the instrument to be either
hand held, or hung on nearby objects; a
rigid stainless steel probe with handle,
connected to a flexible hose that allows
gas samples to be taken from cramped
and confined areas (alternate probes and
condensate traps may be used).

2
Figure 2. Battery
Installation
2 TECHNICALCHARACTERISTICS
CO Display Range ............... 0-1999 ppm CO
Accuracy.............................. ±10 ppm or ±5% of reading
whichever is greater*
Response Time..................... 90% of final value within 40 sec.
Battery Requirements........... 1.5 V, “C” cells, Qty. 4
Operating Time** ................ 14 to 16 hours, alkaline cells
Operating Temp. Range ....... 23 to 104°F (–5 to 40°C)
Relative Humidity................ 10 to 85% non-condensing
Weight (w/o batteries).......... 12 ozs. (341 grams)
Dimensions .......................... 8.6 x 3.5 x 2.9 in. (218 x 89 x 74 mm)
To prepare the instrument for operation, you
must install four “C” size batteries, and (if
desired)installthehose and probe as described
in the following paragraphs.
For your convenience, and to ensure that the
instrumentwillprovidereliableCOindications,
the CO sensor is installed and the instrument
calibrated on 500 ppm of CO at the factory.
3.1 BatteryInstallation
Detachtheelasticstrap'smetalclipatthebottom
oftheinstrument,andslideoffthebatterycover
as shown in Figure2. Then while observing
proper battery polarity, install four “C” size
batteriesintothe instrument’s batterycompart-
ment. (Recommended battery types: Duracell
Alkaline or equivalent). After the batteries
are installed, replace the battery cover and the
elastic-strap clip.
* Tighter accuracy in the lower ranges, up to ±2 ppm, may be attained if
lower range calibration gases (eg. 100 ppm) are utilized.
** Times are with the backlight turned off. Continuous use of the backlight
will decrease battery life.
3 PREPARINGTHEMONOXORII
FOR OPERATION

Figure 3. Probe Installation
3
If batteries are accidently installed in the wrong polarity, a positive
temperaturecoefficient(PTC)thermistorwillprotecttheinstrument’s
electronic circuitry. The instrument will operate once batteries are
properly installed and the PTC thermistor is allowed to cool.
3.2 ProbeInstallation
Install the probe by sliding the end of its tubing over the gas inlet
port on the top right side of the instrument as shown in Figure3. The
tubing may be difficult to slide over the gas inlet port of the unit for
the first time. This was done intentionally to allow for a snug fit. If
necessary, use a little dish washing liquid diluted in water or heat the
end of the tube with hot tap water to help it slide onto the port.
GAS INLET PORT
LINE
DRYER
PROBE
HANDLE
When changing
probe tubes,
hand tighten nut,
and then use a
wrench to tighten
≈1 flat to seal.

4
4 OPERATION
To operate the Monoxor II, you simply . . .
•Set its POWER switch to ON,
•Wait for the instrument to warm up (approx. 1 minute),
•Zero the display (if necessary),
•Take a gas sample.
Detailed operating procedures are presented below:
4.1 PowerON/OFF
TurnontheinstrumentbyslidingitsPOWERswitch
toON.Observethat when power is first applied,all
numerical LCD segments are tested for 5–15 sec-
onds; after which, the LCD shows the detected CO level. (A minus
sign may appear during power up as the sensor stabilizes.) Turn off
the instrument by sliding the POWER switch to OFF.
Important!Whenstoringtheinstrumentforextendedperiodsoftime,
remove the batteries and ensure that the POWER switch is OFF. The
OFF position places a short across the CO sensor, thus keeping the
sensor from being destabilized while not in use.
4.2 ZeroingtheInstrument
After being turned on and warmed up for at least 1 minute, the instru-
ment should indicate 000 ±5 ppm in fresh air. If the instrument needs
to be zeroed, proceed as follows:
1. Ensure that the instrument is sampling air that is free of Carbon
Monoxide.
NOTE: If the instrument was zeroed in an area where CO was
present, a large negative CO display appears.
2. Using a 1/8" flat-blade screwdriver, turn the
ADJUST potentiometer until the LCD shows
0 ppm.Thedisplayshowsnegativenumbersfor
zeroing purposes. An instrument can be considered zeroed with a
display bounce of up to ±3 ppm.

5
4.3 BacklightON/OFF
The LCD can be read in low-light areas by setting the front panel
LIGHT switch to ON.The backlight stays on until turned off, or until
the POWER switch is set to OFF.
4.4 UsingtheStrap
The instrument's elastic strap allows the unit to be either hand-held,
or hung on nearby objects.
By sliding your hand between the instrument and its elastic strap,
you can hold onto the Monoxor II with a minimum of effort. The
instrument's front panel slide switches can then be actuated by your
thumb for one-handed operation. Or, by releasing the metal clip at the
bottom of the instrument's case, you can hang the instrument by its
strap on nearby objects such as nails, sheet metal, or valve handles.
4.5 UsingtheProbe
Arigid stainless steel probe with handle is used to draw a gas sample
fromtheroom,grilles,diffusers,andfurnacefluesthroughalinedryer
and flexible hose into the instrument. A flexible probe option (see
Section 6) is available to give easy access to hot-water heater flues
and inside furnace heat exchangers.
The probe tube is detachable from the handle when sampling with a
different probe is desired. See Figure 3.
Important! Theline-dryerwillremovemoisturefromthegassample.
If the line-dryer becomes saturated, however, condensation may be
observed within the hose. If this occurs, stop sampling and replace
the line-dryer's filter-packing material.
4.6 InterpretingtheDisplay
Gas Display The LCD shows CO levels in the
range from 0 to 1999 ppm. The display on the right
indicates a CO level of 500 ppm.

6
Overrange When the gas sample exceeds
1999 ppm, a “1” is displayed on the LCD. To clear
an overrange condition, leave instrument turned on
and sample fresh air until the LCD returns to displaying CO.
LowBatteryIndications Whenthebatteryvoltage
becomes low, the “LO BAT” indicator appears.
Although the instrument will continue to operate
and give CO readings under these conditions, the batteries should be
replaced as soon as possible.
When battery voltage becomes too low for the
instrument to operate, a “-1” is displayed on the
LCD. No CO readings are provided under these
conditions.
4.7 Long-TermStorage
When storing the Monoxor II for extended periods of time, set its
POWER switch to OFF and remove the batteries. The POWER OFF
position places a short across the CO sensor, thus keeping it from
being destabilized while not in use.
5 MAINTENANCE
The Monoxor II needs to be calibrated at regular intervals to be cer-
tain that it still meets its accuracy specification.Aregular calibration
schedule should be established between you and your nearest Bacha-
rach Service Center, unless your facility has the necessary calibration
equipment and personnel trained in the maintenance of gas-detection
equipment. Detailed calibration , maintenance procedures and re-
placementpartslistsareprovidedintheServiceManual(0019-9166).
As a quick check of the instrument’s operation, perform a response
check by exposing the instrument to a source of CO (e.g., cigarette
smoke, smoke from a recently snuffed-out match, bottled CO). If the
instrument doesn’t show the presence of CO, or if the reading is obvi-
ously in error, DO NOT use the instrument until it has been serviced
by an authorized Bacharach Service Center.
NOTE: DO NOT use this simple response check as a sub-
stitute for ensuring the instrument is properly calibrated.

6 PARTS / SERVICE
6.1 Parts/AccessoriesList
Item Part No.
Battery Cover 0019-3029
Probe/Hose/Line Dryer Assy. 0019-3084
Flexible Probe Tube (optional) 0019-3104
Line Dryer Filter Packing 0011-0122
6.2 BacharachSales / ServiceCenters
7
United States
Bacharach, Inc.
621 Hunt Valley Circle
New Kensington, PA 15068
Phone: [phone]
Fax: [phone]
Email: [email protected]
Canada
Bacharach of Canada, Inc.
20 Amber St. Unit #7
Markham, Ontario L3R SP4
Canada
Phone: [phone]
Fax: [phone]
Email: [email protected]

7 HAZARDS OF CARBON MONOXIDE
Carbonmonoxidepoisoningresultsinheadache,nausea,chronictired-
ness, confusion, dizziness, and sometimes coma or death. It effects
people by cutting off the supply of oxygen to their muscles and brain.
Theharmful effectsofcarbon monoxide exposure dependon both the
concentration of CO in the air and the length of exposure.
Concentration Inhalation time and toxic
of CO in air symptoms developed
50 ppm* (0.005%) Maximum allowable concentration for
continuous exposure in any 8-hour period.
200 ppm* (0.02%) Slight headache, tiredness, dizziness,
nausea after 2–3 hours.
400 ppm (0.04%) Frontal headaches within 1–2 hours,
life-threatening after 3 hours.
800 ppm (0.08%) Dizziness, nausea and convulsions within
45 minutes. Unconsciousness within
2 hours. Death within 2–3 hours.
1,600 ppm (0.16%) Headache, dizziness and nausea within
20 minutes. Death within 1 hour.
3,200 ppm (0.32%) Headache, dizziness and nausea within
5–10 minutes. Death within 30 minutes.
6,400 ppm (0.64%) Headache, dizziness and nausea within
1–2 minutes. Death within 10–15 minutes.
12,800 ppm (1.28%) Death within 1–3 minutes.
For more information on CO ask about Bacharach's
CO Regional Training Seminars.
*Maximum CO concentration for exposure at any time as prescribed
byOSHA.Effectscanvarysignificantlybasedonage,sex,weight and
overall state of health.
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