OXY-SEN
OXYGEN MONITOR
Alpha Omega Instruments Corp.
0 Albion Road, Suite 100
4
Lincoln, RI 02865
Phone: 401-333-8580
Fax: 401-333-5550
Website: www.aoi-corp.com
Email: salescontact@aoi-corp.com
VERSION 2.2 COPYRIGHT 06/18
ALPHA OMEGA INSTRUMENTS CORP. ALL
RIGHTS RESERVED INCLUDING THE RIGHT TO
REPRODUCE THIS MANUAL, OR ANY PORTION
THEREOF, IN ANY FORM.
ALPHA OMEGA INSTRUMENTS CORP.
OXY-SEN OXYGEN MONITOR Instruction Manual
WARRANTY
Alpha Omega Instruments Corp. warrants the OXY-SEN Oxygen Monitor delivered to be free
from defects in material and workmanship at the time of delivery to the FOB point specified in
the purchase order, its liability under this warranty being limited to repairing or replacing, at
Alpha Omega Instruments option, items which are returned to it prepaid within one year from
the date of shipment and found to Seller’s satisfaction to be defective.
Alpha Omega Instruments one (1) year sensor warranty offers protection for one full year from
the date of shipment of the OXY-SEN Oxygen Monitor. Any sensor from an OXY-SEN Oxygen
Monitor that fails under normal use must be returned to Seller prepaid and, if such sensor is
determined by Seller to be defective, Seller shall provide Buyer a replacement sensor. Buyer
must provide the serial number of the monitor from which the sensor has been removed. If a
sensor is found to be defective and a new one issued, the warranty of the replacement sensor
(s) is for a period of one year from the date of shipment. At times, it may be necessary to ship a
replacement sensor in advance of receiving one returned for warranty claim. In such cases, if
the returned sensor is not covered under warranty, the user will be charged the full price of a
replacement sensor. In no event shall Alpha Omega Instruments Corp. be liable for
consequential damages. NO PRODUCT IS WARRANTED AS BEING FIT FOR A
PARTICULAR PURPOSE AND THERE IS NO WARRANTY OF MERCHANTABILITY.
This warranty applies only if:
(i) the items are used solely under the operating conditions and manner
recommended in this manual, specifications, or other literature;
(ii) the items have not been misused or abused in any manner or repairs attempted
thereon;
(iii) written notice of the failure within the warranty period is forwarded to Alpha
Omega Instruments Corp. and, the directions received for properly identifying
items returned under warranty are followed;
(iv) the return notice authorizes Alpha Omega Instruments Corp. to examine and
disassemble returned products to the extent the Company deems necessary to
ascertain the cause of failure.
The warranties stated herein are exclusive. THERE ARE NO OTHER WARRANTIES, EITHER
EXPRESSED OR IMPLIED, BEYOND THOSE SET FORTH HEREIN, and Alpha Omega
Instruments Corp. does not assume any other obligation or liability in connection with the sale or
use of said products.
Disclaimer of Warranty
lpha Omega Instruments Corp. makes no representation or warranties, either expressed or
A
implied, by or with respect to anything in this manual, including, but not limited to, implied
warranties of merchantability or fitness for a particular purpose. In no event will Alpha Omega
Instruments Corp. be liable for any damages, whether direct or indirect, special, consequential, or
incidental arising from the use of this manual. Some states in the USA do not allow the exclusion
of incidental or consequential damages. Alpha Omega Instruments Corp. also reserves the right
to make any changes to improve the performance of its products at any time and without notice
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ALPHA OMEGA INSTRUMENTS CORP.
OXY-SEN OXYGEN MONITOR Instruction Manual
TABLE OF CONTENTS
PAGE
WARRANTY i
SECTION 1.0 SPECIFICATIONS 1
SECTION 2.0 SYSTEM DESCRIPTION 2
SECTION 3.0 INSTALLATION PROCEDURES 3
SECTION 4.0 OPERATING PROCEDURES 4
SECTION 5.0 CALIBRATION PROCEDURES 5
SECTION 6.0 REPLACEMENT OF OXYGEN SENSOR 6
FIGURE 1.0 OXY-SEN OXYGEN MONITOR DIMENSIONAL DRAWING 7
FIGURE 2.0 OXY-SEN OXYGEN MONITOR ANALOG INTERFACE CABLE 8
APPENDIX A MSDS FOR THE 2SEN OXYGEN SENSOR 9
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ALPHA OMEGA INSTRUMENTS CORP.
OXY-SEN OXYGEN MONITOR Instruction Manual
SECTION 1.0
SPECIFICATIONS
PERFORMANCE
Measurement Range: 0-100% oxygen (gas phase)
Measurement Error: ±1% of full scale (at 77°F and 29.92” Hg)
Linearity: ±1% of full scale
Response Time: 90% of full scale in under 30 seconds
Sensor Type: Long-life ambient temperature electrochemical
Temperature Compensation: Standard
Operating Temperature Range: 40° to 104°F (5° to 40°C)
Warranty: 12 months (both sensor and electronics)
ELECTRICAL
Display: 3-1/2 digit liquid crystal
Input Power: 115/230 VAC, 50-60Hz or 24 VDC
Analog Output (Optional): 4-20 mADC scaled over 0-100% O2 and 0-25%
O2(selectable by connector position).
AMPLE GAS CHARACTERISTICS
S
Storage Temperature Range: 40° to 104°F (5° to 40°C)
Sample Gas Pressure Limits: < 2 psig (0.14 kg/cm2)
CONSTRUCTION
Dimensions of Electronics Enclosure: 5-3/4 in.(146.05 mm) Width
5-1/2 in.(139.70 mm) Height
1-1/4 in.(31.75 mm) Depth
Note: All dimensions are without optional equipment
Dimensions of Sensor: 1.85 in.(47 mm) Height
0.9 in.(22.86 mm) Depth
Thread depth: 0.29 in.(7.34 mm) (exclusive of O-ring)
Thread size: M16 X 1
Weight (with 10’ of sensor cable): < 2 pounds (<0.907 kg)
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ALPHA OMEGA INSTRUMENTS CORP.
OXY-SEN OXYGEN MONITOR Instruction Manual
SECTION 2.0
SYSTEM DESCRIPTION
General Description
The OXY-SEN Oxygen Monitor is a percent oxygen monitor designed to provide accurate and
dependable percent oxygen measurements in a variety of gases. The monitor enclosure is
made from aluminum, and is rated for general purpose service. The monitor is powered from
115 VAC, 208/240 VAC (auto-adjusts to input voltage) or 24 VDC (must be selected at time of
order).
Ambient Temperature Electrochemical Sensor with EES
The OXY-SEN Oxygen Monitor features an extended life oxygen sensor with EES (enhanced
electrolyte system) a weak acid electrolyte system. The weak acid electrolyte system retards
passivation of the sensor anode by allowing the products of oxidation to dissolve in the acid
electrolyte. In effect, the sensor is renewed continuously as the weak acid electrolyte tolerates
over 20 times the lead oxide (PbO) than potassium hydroxide (KOH) based sensors. The result
is a sensor with a greatly extended useful life.
The extended life sensor is a lead-oxygen battery comprised of a lead anode, a gold cathode,
and a weak acid electrolyte. A gold electrode is bonded onto a non-porous Teflon (FEP)
membrane. A small amount of oxygen permeating through the membrane is reduced
electrochemically at the gold electrode. A resistor and a thermistor (for temperature
compensation) are connected between the cathode and anode. As a result, the lead-oxygen
battery is always discharged.
Current flowing through the resistor and thermistor is proportional to the oxygen concentration of
the gas in contact with the Teflon membrane. By measuring the voltage between the resistor
and the thermistor, oxygen concentration can be accurately determined. The two electrode
reactions are depicted below:
Cathode: O2 + 4H+ + 4e 2H2O
node: 2Pb + 2H2O 2PbO + 4H+ + 4e
A
Overall: O2 + 2Pb 2PbO
If PbO generated at the anode remains on the anode, the anode's potential will change and the
output voltage of the sensor would become extremely low. However, in actuality the surface of
the lead anode is continuously renewed because PbO is dissolved back into the electrolyte.
There is a maximum level to the solubility of PbO in the weak acid electrolyte. As a result, when
the electrolyte becomes saturated with PbO, the sensitivity of the sensor will begin to drop
signaling time for replacement of the sensor. When the extended life oxygen sensor is used in
ambient air monitoring applications, carbon dioxide (CO2) that is present will not adversely affect
the sensor's performance. Due to the weak acid electrolyte, CO2 will not react with the
electrolyte to form potassium carbonate as it does with KOH based sensors. As a result, there
is no loss in output due to the presence of CO2.
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ALPHA OMEGA INSTRUMENTS CORP.
OXY-SEN OXYGEN MONITOR Instruction Manual
SECTION 3.0
INSTALLATION PROCEDURES
Unpacking the Instrument
Upon opening the shipping container, carefully unpack the monitor to check if the outer surfaces
have been damaged. If so, report the findings immediately to Alpha Omega Instruments who will
provide further instructions. If there is no apparent damage, check the contents
to ensure all items were shipped. In some cases, items may be back-ordered.
All damage and shortage claims must be made
known to Alpha Omega Instruments within 10
days after receipt of shipment.
Mounting the OXY-SEN Oxygen Monitor
The mounting slots for the monitor electronics are 2-5/8" apart vertically, and 5-3/8 " apart
horizontally. The slots can accommodate # 6 through #8 screws.
Powering the OXY-SEN Oxygen Monitor A/C Power Source Version
The OXY-SEN Oxygen Monitor is powered from 115 VAC/60 HZ. or 208/240 VAC, Hz., at 10
ma. MAX. The Oxy-Sen Oxygen Monitor senses the input voltage and adjusts automatically
for proper operation.
Powering the OXY-SEN Oxygen Monitor 24 VDC Power Source Version
The OXY-SEN Oxygen Monitor is powered from a 24 volt DC power source. The unit is
internally fused for 500 mA. All manual references to AC power input do not apply. DO NOT
CONNECT THE 24VDC POWER SOURCE VERSION TO ANY AC (115/220 VAC) POWER
SOURCE!
Mounting the Oxy-Sen Oxygen Sensor
e pre-cabled sensor mounts into a tapped hole with a M16X1 thread. Insure that only
Th
finger tight pressure is applied to the sensor when mounting, as the o-ring supplied with
the sensor will supply a good seal with finger tight torque to the sensor.
The sensor connects to the monitor's electronics with a pre-wired cable connector,
installed into the connector labeled "Sensor" (use the dimple on the connector for
alignment.
Connecting the Optional Analog Output Cable
When ordered with the optional analog output, the monitor is equipped with a 10 foot (3
meter) cable. This cable can be used to access either the 0-25% or 0-100% oxygen
output range. The location of these connections is shown in Figure 1.0 on page 7.
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ALPHA OMEGA INSTRUMENTS CORP.
OXY-SEN OXYGEN MONITOR Instruction Manual
SECTION 4.0
OPERATING PROCEDURES
Power On:
Power to the OXY-SEN is applied whenever the instrument is plugged into an AC outlet.
Gas System Pressure Limits
It is imperative that the sample gas pressure to the sensor be kept to under 1 pound per
square inch. There is no automatic pressure correction so operation at a constant pressure will
provide optimum measuring conditions. Vacuums to 12.5 psia are permissible. Any vacuum
level greater than that should be avoided as it will cause irreparable damage to the sensor.
Range Operation
The OXY-SEN Oxygen Monitor operates with two (2) different analog signal output ranges 025% and 0-100%. Selection of the range of operation is done by plugging the monitor's output
cable into one of the two connectors. The connector on the far right labeled “100%”
automatically selects the 0-100% range; selecting the connector to the immediate left labeled
“25%” will provide the 4-20 mADC output over 0-25%. If the 25% output range is selected,
the OXY-SEN will still measure and display oxygen values up to 100%
Sample Connections
The standard OXY-SEN oxygen sensor is designed to be threaded into a hole prepared to
accept a M16X1 thread. As such, there are no conventional gas connections to be made.
Typical applications for the OXY-SEN include glove boxes, reactor vessels, chambers, etc.,
where such threaded holes can be made quite easily. Once the sensor has been properly
installed and the “O” ring properly seated, then the other end of the sensor cable, may be
connected to the bottom of the electronics labeled "Sensor". Alpha Omega Instruments does
offer an optional “T” like flow through gas housing for the OXY-SEN. If this option has been
ordered, the housing will be equipped with quick connect fittings on both the gas inlet and outlet.
These fittings are designed for use with 1/4” OD plastic tubing. The housing may also be
ordered with compression fittings.
Analog Outputs
The OXY-SEN Oxygen Monitor may be equipped with optional analog outputs for use with a
recorder, datalogger, etc., which is a powered 4-20 ma loop output. This output scale is
determined by the range connection selected. The interface cable supplied with the Monitor can
be plugged into the connector labeled "25%" or "100%" on the bottom of the electronics
enclosure. The cable connector location information can be found in Figure 1.0, and the cable
pin-outs in Figure 2.0.
Storage of the Monitor
When the OXY-SEN Oxygen Monitor is not in use, it may be stored in any position. If stored in
an atmosphere where the temperature is greatly different from the temperature where it will be
used, the instrument should be allowed to come into equilibrium with the operating ambient
temperature before use. Under no circumstances should the OXY-SEN Oxygen Monitor or its
sensor be exposed to temperatures below 40°F (5° C) or above 104 °F (40° C). Doing so will
damage the sensor and void the warranty.
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ALPHA OMEGA INSTRUMENTS CORP.
OXY-SEN OXYGEN MONITOR Instruction Manual
SECTION 5.0
CALIBRATION PROCEDURES
Routine Span Gas Calibration Checks
The OXY-SEN Oxygen Monitor has been calibrated at the factory prior to shipment. However,
due to the rigors of shipping, it is advisable to check the calibration of the OXY-SEN upon
receipt (see below). This can easily be accomplished by powering up the instrument and placing
the sensor in a source of fresh air. The reading on the meter should be approximately 20.9%. If
an adjustment needs to be made, use the span adjustment screw located on the side of the
instrument. The measurement error associated with the OXY-SEN is +
translates into + 1%. This specification does not differ if the optional 25% analog output is used.
The oxygen sensor used in the OXY-SEN is very stable and will provide exceptional
performance over long periods. It is advisable to check the calibration of any gas phase
instrument. Alpha Omega Instruments recommends checking the calibration of the OXY-SEN
every 2-3 months.
Calibration Gas
The oxygen sensor used in the OXY-SEN Oxygen Monitor has a linear output. As a result, it
can be calibrated using a source of fresh air, which contains 20.9 % O2. For gas measurement
expected to be over 20.9%, a calibration gas at or above the anticipated measurements may
improve calibration accuracy.
1% of full scale which
An optional calibration fixture (P/N OS-1CAL) is available to enable use of bottled calibration
gases.
Procedure for Checking Calibration
Insure that the sensor input is exposed to a source of fresh air, or to a flowing gas from a
calibration gas bottle (must have optional flow through gas housing). Insure that pressure
does not exceed 1.0 PSIG and flow does not exceed 0.5 to 1.0 liters/min when utilizing the
optional flow through gas housing. If the reading on the meter differs markedly from the
calibration source, an adjustment to the instrument should be made. To accomplish this,
locate the span calibration potentiometer located on the right side of the electronics
enclosure. With a small blade screw driver, adjust the front panel reading of the instrument
until it matches that of the calibration medium.
Zero Adjustment
No zero calibration is required.
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ALPHA OMEGA INSTRUMENTS CORP.
OXY-SEN OXYGEN MONITOR Instruction Manual
SECTION 6.0
REPLACEMENT OF THE OXYGEN SENSOR
Alpha Omega Instruments oxygen sensor is designed to operate for prolonged periods of time
without needing replacement. However, in time the sensor's output will drop to a level where
replacement becomes the prudent course of action. A good indication of this is a marked
increase in calibration frequency. When this happens, a replacement sensor should be ordered
directly from the factory.
To install a new sensor follow the directions below:
1.0 Remove AC/DC power from the instrument.
2.0 Locate the sensor cable located on the bottom of the enclosure and unplug the sensor.
3.0 Locate the oxygen sensor where it is mounted and remove the sensor by unscrewing
the sensor by rotating in a counterclockwise motion. Discard the old sensor (see
precautionary note below) and install the replacement sensor being careful not to overtighten the sensor. The sensor has an “O” ring seal that when finger tightened, will
provide therequired seal. Reattach the sensor's electrical connector.
THE SENSOR CONTAINS A SMALL AMOUNT OF WEAK ACID. WHEN
DISCARDING SPENT SENSORS, CARE SHOULD BE GIVEN NOT TO
PUNCTURE THE SENSOR OR TO TAKE IT APART. DISPOSE OF THE
SPENT SENSOR ACCORDING TO LOCAL, COUNTY, OR STATE
GUIDELINES.
4.0 Apply AC/DC power and calibrate according to Section 5.0.
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ALPHA OMEGA INSTRUMENTS CORP.
OXY-SEN OXYGEN MONITOR Instruction Manual
Figure 1.0
Dimensional Drawing
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ALPHA OMEGA INSTRUMENTS CORP.
OXY-SEN OXYGEN MONITOR Instruction Manual
Figure 2.0
Analogue Output Cable
The cable connector is a 4 Pin mini-DIN Connector, AMP P/N 171-2604
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Appendix A
SECTION I - PRODUCT IDENTIFICATION
Alpha Omega Instruments Corp
40 Albion Road, Suite 100
401-333-8580
September 3, 1998
April 12, 2001
OXY-SEN-2SN
Weak acidic solution encapsulated in plastic housing.
SECTION II - HAZARDOUS INGREDIENTS OF SOLUTION
CAS # 6080-56-4
OSHA/PEL 0.05 mg/m3
ACGIH/TLV 0.15 mg/m3
Acetic Acid, Glacial
CAS # 64-19-7
OSHA/PEL 10 PPM
ACGIH/TLV 10 PPM
Lead
CAS # 7439-92-1
OSHA/PEL 0.03mg/m3
SECTION III - PHYSICAL & CHEMICAL CHARACTERISTICS
Boiling Point: Not Available
Specific Gravity: Not Available
Vapor Pressure: Not Available
Vapor Density: Not Available
Evaporation Rate: Not Available
Physical State: Liquid
Melting Point: Not Available
pH: 3.5 - 7.0 Flash Point: > 100 degrees C
Appearance & Odor: Colorless Liquid: Vinegar like odor
Extinguisher Media: Use water spray, alcohol foam, dry chemical or carbon dioxide
Special Fire Fighting Procedures: Respiratory protection should be used to avoid breathing fumes.
Unusual Fire & Explosion Hazards:
Lead acetate decomposes at boiling point and toxic gases are produced. Acetic acid vapors
may flow along surfaces to distant ignition sources and flash back. Closed containers exposed
to heat may explode.
Material Safety Data Sheet for the 2SEN Oxygen Sensor
Manufacture r's Name:
Address
Te lephone
Date Prepared
Date Revised
Trade Name
Description
Lead Acetate, Trihydrate
TLV and PEL are for lead, inorganic dusts and fumes, as Pb
Note: Lead has been reported as causing cancer in laboratory animals, exercise due care.
NOTE: TLV and PEL are for concentrated (90% - 100%) Acetic Acid, actual solution is less than 50%.
9
Appendix A
SECTION IV - REACTIVITY DATA OF SOLUTION
Will not occur
Conditions to Avoid:
Heat, flame, other sources of ignition
Incompatibles:
Strong acids, strong bases, strong oxidizing agents.
Decomposition Products:
Lead fumes, carbon monoxide, carbon dioxide.
SECTION V - HEALTH HAZARD DATA OF SOLUTION
Lead Acetate Component
Data is for lead, inorganic dusts and fumes as Pb
(TLV/TWA):
0.15 mg/m3
STEL:
Not Established
PEL:
0.05 mg/m3
Intraperitoneal Rate LD50 for Lead Acetate
Trihydrate is 200 mg/Kg
Carcinogenicity:
This substance is listed as a NTP anticipated human carcinogen
and an IARC animal carcinogen.
Reproductive Effe cts:
None identified
Effects of Overexposure:
INHALATION:
Tightness and pain in chest, coughing, difficult breathing.
SKIN CONT ACT:
Irritation.
EYE CONTACT:
Irritation.
May be harmful.
INGESTION:
Is harmful and may be fatal, headache, nausea, vomiting,
dizziness, gastrointestinal irritation.
CHRONIC EFFECT S:
Anemia, kidney damage, blurred vision, lead build-up in the
central nervous system.
Target Organs:
GI tract, central nervous system, kidneys, blood, gingival tissue.
Me dical Conditions Generally
None identified.
Primary Routes of Entry:
Ingestion, inhalation, eye contact, skin contact, absorption.
Emergency and First Aid Procedure s:
INHALATION:
If inhaled, remove to fresh air.
SKIN CONT ACT:
In case of contact, flush with water for at least 15 minutes.
EYE CONTACT:
In case of contact, flush with water for at least 15 minutes.
CALL A PHYSICIAN.
Give large amounts of water.
Material Safety Data Sheet for the 2SEN Oxygen Sensor
Stability
Hazardous Polymerization:
Toxicity:
Stable
SKIN ABSORPT ION:
Aggravated by Exposure:
INGESTION:
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Appendix A
SECTION V - HEALTH HAZARD DATA OF SOLUTION cont'd
Acetic Acid
Data is for concentrated acid.
25 mg/m3
37 mg/m3
25 mg/m3
3310 mg/kg
525 mg/kg
1060 mg/kg
5620 mg/kg
No
No
No
No
None identified
Reproductive Effe cts:
None identified
Severe irritation or burns of respiratory system
SKIN CONT ACT:
Severe burns, may cause dermatitis
Severe burns, permanent eye damage.
SKIN ABSORPT ION:
None identified
INGESTION:
Burns to mouth and throat, nausea, vomiting, gastrointestinal
irritation, diarrhea, shock, may be fatal
CHRONIC EFFECT S:
Lung damage, teeth damage
Target Organs:
Respiratory system, eyes, skin, teeth, lungs.
Aggravated by Exposure:
Primary Routes of Entry:
Inhalation, ingestion, skin contact, eye contact.
Emergency and First Aid Procedure s:
INHALATION:
If inhaled, remove to fresh air.
Immediately flush skin with plenty of water for at least 15 minutes.
CALL A PHYSICIAN.
Give large amounts of water.
Material Safety Data Sheet for the 2SEN Oxygen Sensor
Threshold Limit value (TLV/TW A)
Short term exposure limit (STEL)
Permissible exposure limit (PEL)
Toxicity:
Oral rate LD50 for acetic acid:
Intravenous mouse LD50 for acetic acid:
Skin rabbit LD50 for acetic acid:
Inhalation mouse LD50 for acetic acid:
Carcinogenicity NTP:
IARC
Z List:
OSHA Reg:
Carcinogenicity:
Effects of Overexposure:
INHALATION:
EYE CONTACT:
Me dical Conditions Generally
INGESTION:
SKIN CONT ACT:
EYE CONTACT:
Respiratory system disease, skin disorders.
Immediately flush with plenty of water for at least 15 minutes.
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Appendix A
SECTION VI - SPILL AND DISPOSAL PROCEDURES
NOTE: The sensors are sealed, and under normal circumstances, the contents of the
sensors do not present a health hazard. The following information is given as a guide in the
event that a cell leaks.
Steps to be taken in the event of a spill or discharge:
Wear respiratory protection and full protective clothing
Neutralize spill with soda ash or lime
Carefully place material into clean, dry container and cover.
Flush spill area with water.
Disposal Procedure:
D008
U144 (Toxic W aste)
SECTION VII - ENGINEERING AND WORK PRACTICES CONTROLS
VENTILATION:
Use general or local exhaust ventilation to meet TLV requirements.
RESPIRATORY PROTECTION:
Respiratory protection required if airborne concentration exceeds TLV.
EYE/SKIN PROTECTION:
Safety goggles, uniform, apron, neoprene gloves are recommended.
Protective measures during cell replacement:
Before opening the packaging containing the sensor cell, check the sensor cell for leakage. If the sensor
cell leaks, do not open the container. If there is liquid around the cell while in the instrument, use the
protection listed above in this section.
SECTION VIII - STORAGE AND HANDLING PRECAUTIONS
Storage Requirements:
Store in a cool, well-ventilated area.
Material Safety Data Sheet for the 2SEN Oxygen Sensor
Dispose in accordance with all applicable federal, state and local environmental regulations, with regards to lead or lead acetate.
EPA Hazardous Waste Numbers:
Lead
Lead Acetate
Acetic Acid, Glacial D001, D002 (Ignitable, Waste)
NOTE: The above data is based on tests and experience which Alpha Omega Instruments, Inc. believes reliable and are
supplied for information purposes only. Alpha Omega Instruments Corp. disclaims any liability for damage or injury which
results for the use of the data and nothing contained there in shall constitute a guarantee, warranty
(including warranty of merchant ability) or representation (including freedom from patent liability) by
Alpha Omega Instruments Corp. with respect to the data, the product described, or their use for any specific purpose,
even if that purpose is known to Alpha Omega Instruments Corp.
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