Bacharach OXOR II 19-7037 User manual

OXOR II
INSTRUCTION 19-9126
Portable Oxygen Analyzer
Part No. 19-7037
& 19-7044
Rev. 6 – October 1999
®
Bacharach, Inc.
621 Hunt Valley Circle, New Kensington, PA 15068
PH: 724-334-5000 • FAX: [phone] • Web: www.bacharach-inc.com
E-mail: [email protected]
Printed in U.S.A. ® Registered Trademark

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
factoryofmanufactureand shownto BacharachInc.’s reasonablesatisfaction 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’sliability andBuyer’sremedy underthis warrantyof titleare 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.
Allexpendableitems,suchaselectrochemicalsensors,arewarrantedforaperiod
of six months.
THE FOREGOING WARRANTIES ARE EXCLUSIVE AND ARE GIVEN
ANDACCEPTED INLIEUOF (I)ANYAND ALLOTHERWARRANTIES,
EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE
IMPLIEDWARRANTIESOFMERCHANTABILITYANDFITNESSFORA
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
foregoingwarranties,remediesorthislimitationwillbebindinguponBacharach,
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
European Operations: Bacharach Europe
Sovereign House, Queensway
Leaminton Spa
Warwickshire CV31 3JR
United Kingdom
Product Name: OXOR II
Conforms to the following product specifications
EMC: European Directive 89/336/EEC
EN 500081-1 (Emissions)
EN 500082-1 (Immunity)
Copyright © 1995 Bacharach, Inc.

1
WARNING!
Because this instrument is used to detect and monitor materials and conditions which are listed by OSHA
or others as potentially hazardous to personnel and property, the information in this manual must be fully
understoodandutilizedtoensurethattheinstrumentis operating properlyandisbothusedand maintained
in the proper manner by qualified personnel. An instrument that is not properly calibrated, operated and
maintained by qualified personnel is likely to provide erroneous information, which could prevent user
awareness of a potentially hazardous situation for the instrument user, other personnel and property.
If,afterreadingtheinformationinthismanual,theuserhasquestionsregardingtheoperation,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.
1 INTRODUCTION
TheOxor®IIisacommercial-gradepor-
tableinstrumentdesignedtodisplaycon-
centrationsofoxygen(O2)gasbetween0
to25%. Thisinstrument showsthepres-
enceofO2inagassamplebydrawingthe
sampleintoitssensorchamberbyabuilt-
inmotorizedpump.Part#19-7037comes
withaprobe.Part#19-7044comeswith-
out a probe (All non-probe related func-
tionsremainthesame inthisinstruction).
Other features and accessories of the
Oxor II include: A large, back-lit Liquid
CrystalDisplay(LCD),whichallowsthe
displaytobereadinanylightingcondition
from direct sun-light to total darkness; a
semi-detachableelasticstrapthatpermits
the instrument to be either hand held, or
hung on nearby objects; a rigid stainless
steelprobewithsample filter that allows
gas samples to be taken from cramped
and confined areas (alternate probes and
condensate traps may be used).
Figure 1. Oxor II

2
Figure 2. Battery
Installation
To prepare the instrument for operation, you
must install four “C” size batteries, and (if
desired)installthehoseandprobeasdescribed
in the following paragraphs.
For your convenience, and to ensure that the
instrumentwillprovidereliableO2indications,
the O2sensor is installed and the instrument
calibrated on a known O2 concentration at the
factory.
3.1 Battery Installation
Detach the elastic strap's metal clip at the bot-
tom of the instrument, and slide off the battery
coverasshowninFigure 2.Thenwhileobserv-
ingproperbatterypolarity,installfour“C”size
batteriesintotheinstrument’sbatterycompart-
ment. (Recommended battery types: Duracell
Alkaline or equivalent). After the batteries are
installed, replace the battery cover and the
elastic-strap clip.
*Timesarewiththebacklightturnedoff.Continuoususeofthebacklightwill
decrease battery life.
3 PREPARING THE OXOR II
FOR OPERATION
2 TECHNICAL CHARACTERISTICS
O2Display Range............. 0-25% O2
Accuracy .......................... ±0.8% O2
Response Time ................ 90% of final value within 40 sec.
BatteryRequirements ...... 1.5 V, “C” cells, Qty. 4
Operating Time* .............. 14-16 hours, alkaline cells
Operating Temp. Range... 23 to 104°F (-5 to 40°C)
RelativeHumidity ............ 10-85% non-condensing
Weight (w/o batteries) ..... 13.6 ozs. (385 grams)
Dimensions ...................... 8.6 x 3.5 x 2.9 inches (218 x 89 x 74 mm)

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 Probe Installation
Install the probe by sliding the end of its hose over the gas inlet port
on the top right side of the instrument as shown in Figure 3.
3
Figure 3. Probe Installation

4
4 OPERATION
To operate the Oxor II, you simply . . .
•Set its POWER switch to ON,
•Wait for the instrument to warm up (approx. 1 minute),
•Span the display (if necessary),
•Take a gas sample.
Detailed operating procedures are presented below:
4.1 Power ON/OFF
Turn on the instrument by sliding its POWER
switch to ON. Observe that when power is first
applied,allnumericalLCDsegmentsandthedeci-
malpointaretestedfor5-15seconds;afterwhich,theLCDshowsthe
detected O2level. (A minus sign may appear during power up as the
sensor stabilizes.) Turn off the instrument by sliding the POWER
switch to OFF.
4.2 Adjusting the Instrument
After being turned on and warmed up for at least 1 minute, the
instrument should indicate 20.9% in fresh air. If the instrument needs
to be zadjusted, proceed as follows:
1. Ensure that the instrument is sampling fresh air that is free of any
oxygen displacing gases.
2. Using a 1/8" flat-blade screwdriver, turn the
ADJUST potentiometer until the LCD shows
20.9%. An instrument can be considered prop-
erly adjusted with a display bounce of up to ±0.2%.
4.3 Backlight ON/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.

5
4.6 Interpreting the Display
Gas Display
TheLCDdirectlyshowsO2levelsintherangefrom
0 to 25%. The display on the right indicates a O2
level of 20.9%.
4.4 Using the Strap
Theinstrument'selasticstrapallowstheunittobeeitherhand-held,or
hung on nearby objects.
By sliding your hand between the instrument and its elastic strap, you
can hold onto the Oxor II with a minimum of effort. The instrument's
frontpanelslideswitchescanthenbe actuatedbyyourthumbfor 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 Using the Probe
Thebasicprobe,ortheoptionalrigidstainlesssteelprobewithhandle,
connected to a flexible hose with sample filter can be used to draw a
gas sample into the instrument from the room, grilles, diffusers,
furnace flues, hot-water heater flues, and from inside furnaces heat
exchangers.
Both hose and probe are detachable from the instrument when sam-
pling without the probe, or when sampling with a different probe is
desired.
Important:Ifcondensationisobservedwithinthehose,donot allow
water level to build up to a point where it cuts off flow.

6
Low Battery Indications
When the battery voltage becomes low, the “LO
BAT” indicator appears. Although the instrument
will continue to operate and give percent O2read-
ingsundertheseconditions,thebatteriesshouldbereplacedassoonas
possible.
When the battery voltage becomes too low for the
instrument to operate, a “-1” is displayed on the
LCD. No O2readings are provided under these
conditions.
4.7 Long-Term Storage
WhenstoringtheOxorIIforextendedperiodsoftime,setitsPOWER
switchtoOFFandremovethebatteries.Afterlongtermstoragefollow
Section 4.2 (Adjusting the Instrument) to make sure that the unit is
ready for use.
5 MAINTENANCE
TheOxorIIneeds to becalibratedatregularintervals to ascertainthat
itstillmeetsits accuracyspecification.Aregularcalibration schedule
should be established. Detailed calibration, maintenance procedures
and parts lists are provided in the Service Manual (19-9133).
As a quick check of the instrument’s operation, perform a response
check by exposing the instrument to a gas source which is depleted of
Oxygen (e.g., cigarette smoke, a breath held for 15 seconds or more,
smoke from a recently snuffed -out match, or bottled nitrogen). If the
instrument doesn’t show a drop in the percentage of oxygen from that
source, or if the reading is obviously 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 List
Item Part No.
Battery Cover 19-3029
Basic Probe/Hose Assy. 19-3086
Optional Probe/hose Assy. 19-3076
6.2 Bacharach Sales/Service Centers
7
United States
Bacharach, Inc.
621 Hunt Valley Circle
New Kensington, PA 15068
Phone: [phone]
Fax: [phone]
E-mail: [email protected]
Canada
Bacharach of Canada, Inc.
250 Shields Court, Unit #3
Markham, Ontario L3R 9W7 Canada
Phone: [phone]
Fax: [phone]
E-mail: [email protected]
México
Bacharach de México
Playa Regatas No. 473 Tercer Piso
Col. Militar Marte
Delegación Iztacalco, 08830
México D.F. México
Phones: [phone]
[phone]
FAX: [phone]
E-Mail: [email protected]
Website: www.bacharach-mexico.com
Europe
Bacharach Instruments
Sovereign House, Queensway
Leamington Spa
Warwickshire CV31 3JR
United Kingdom
Phone: [phone]
Fax: [phone]
Email: [email protected]

Notes:
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