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Installation, Operation & Maintenance Manual
OXYvisor Optical Oxygen Analyzer
2.2 BOS Sensor Technical Performance Specifications (determines operating range for OXYvisor)
Barben Oxygen Sensors (BOS), are sold separately or as parts of an integrated (SCP) package with the
OXYvisor. The sensors consist of a fiber optic cable with SMA termination at one end, for connection to the
OXYvisor, and the other end, integrated with a oxygen sensing luminophore to be placed into the process or
sample stream. There are three oxygen sensors, each with unique measurement ranges that can be used with
the OXYvisor; BOS1, BOS2 and BOS3. Their selection and pairing with the OXYvisor will define the range,
accuracy, and repeatability of the OXYvisor. For additional information on BOS sensors please refer to the
BOS sensor product data sheet.
Measurement Range
Limit of Detection
Resolution @ 20ºC and 1013 hPa
Response Time (T
)
90
Accuracy @ 20ºC
Drift from Photo-decomposition
Operating Temperature Range
Allowable Sensor Temperature
Measurement Range
Limit of Detection (LOD)
Resolution @ 20ºC and 1013 hPa
Response Time (T
)
90
Accuracy @ 20ºC
Drift from Photo-decomposition
Operating Temperature Range
Allowable Sensor Temperature
Measurement Range
Limit of Detection (LOD)
Resolution @ 20ºC & 1013 hPa
Response Time (T
)
90
Accuracy @ 20ºC,1 atm
Drift from Photo-decomposition
Operating Temperature Range
Allowable Sensor Temperature
No cross-sensitivity for carbon dioxide (CO
cross-sensitivity to pH (1-14), ionic species like sulfide, sulfate, or chloride. Usable in methanol, ethanol-water mixtures,
and in pure methanol & ethanol. Avoid organic solvents like benzene, chloroform, toluene, acetone, and methylene
chloride along with any strong oxidizers such as gaseous chlorine (Cl
Table 2 - BOSx Sensor Technical Performance Specifications
BOS1 Sensor Specifications - Liquid Phase / Gas Phase
Dissolved Oxygen (DO)
0 - 2.0 mg/L (ppm)
1.0 µg/L (ppb)
± 0.30 at 1 μg/L (ppb)
± 0.63 at 200 μg/L (ppb)
< 30 sec.
1 ppb (l), 0.002 % O
(g), or 3% of the measured value whichever is greater
2
< 1.0 ppb within 30 days (1 min sample rate)
0 to 50ºC (32 to 122ºF)
90ºC (194ºF) non-continuous
BOS2 Sensor Specifications - Liquid Phase / Gas Phase
Dissolved Oxygen
0 - 45 mg/L (ppm)
15 ppb dissolved oxygen
± 4.5 at 90 μg/L (ppb)
± 0.15 at 23 mg/L (ppm)
< 30 sec.
± 0.4 % O
at 20.9 % O
, ± 0.05 % O
2
2
< 0.03 % O
within 30 days (1 min sample rate)
2
0 to 50ºC (32 to 122ºF)
90ºC (194ºF) non-continuous
BOS3 Sensor Specifications - Liquid Phase / Gas Phase
Gas Phase Oxygen @ 1atm, 20ºC
0 - 300 ppm with over-range of 1000 ppm
0.5 ppm O
2
10 ± 0.5 ppm;
100 ± 0.8 ppm;
< 3 sec. based on 0 - 300 ppm measurement range
± 2ppm or ± 5% of measured value whichever is greater (or as partial pressure, +/- 0.002 hPa)
< 1.5 ppm within 30 days (1 min sample rate)
0 to 50ºC (32 to 122ºF)
90ºC (194ºF) non-continuous
Cross Sensitivity for BOS1, BOS2, BOS3 Sensors Listed above
), hydrogen sulfide (H
2
Gas Phase @ 1atm, 20ºC
0 - 5.0% O
(0 - 50.7 hPa)
2
0.002 % O
(0.02 hPa)
2
± 0.0007 % O
at 0.002 % O
2
2 ,
± 0.007 hPa at 0.023 hPa,
< 6 sec.
Gaseous & Dissolved Oxygen @ 1atm, 20ºC
0 - 100 % O
(0 - 1013 hPa)
2
0.03 % O
2
± 0.01 % O
at 0.21 % O
± 0.1 hPa at 2 hPa
2
2
± 0.1 % O
at 20.9 % O
± 1 hPa at 207 hPa
2
2
< 6 sec.
at 0.2 % O
2
2
200 ± 1.5 ppm
S), ammonia (NH
), gaseous sulfur dioxide (SO
2
3
).
2
Section 2
Technical Product Specification
± 0.0015 % O
at 0.02 % O
2
2 ,
± 0.015 hPa at 2.0 hPa
), no
2
13
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