UNISENSE N2O-50, Руководство пользователя

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7
OVERVIEW
This manual covers all the Unisense N
2
O sensors.
With its minute tip size, excellent response time, and
insignificant stirring sensitivity the Unisense nitrous
oxide sensor makes it possible to make reliable and fast
measurements with a high spatial resolution.
The Unisense nitrous oxide microsensor is a miniaturized
Clark-type sensor with an internal reference and a guard
cathode. In addition, the sensor is equipped with an oxygen
front guard, which prevents oxygen from interfering with the
nitrous oxide measurements. The sensor is connected to a
WARNING
Unisense sensors
are neither
intended nor
approved for
use on humans
TABLE 1:
N
2
O SENSOR CHARACTERISTICS
Type
N
2
O-50
N
2
O-100
N
2
O-500
N
2
O-R-LR
N
2
O-R-SR
N
2
O-R-IR
N
2
O-R-HR
N
2
O-MR
N
2
O-NP
N
2
O-FT
N
2
O-SL
N
2
O-ST
N
2
O-PEEK
Tip diameter
40-60 µm
90-110 µm
400-600 µm
400-600 µm with cap*
400-600 µm with cap*
400-600 µm with cap*
400-600 µm with cap*
500 µm for Microrespiration system
1.6 x 40 mm needle for piercing
With glass flow cell, 6 or 8 mm OD
With Swagelok flow cell, 1/8” or 1/4”
With 1/4” x 4 cm steel tube
For 1/8” or 1/6” PEEK tube
Measuring
range
0-200 µm
0-200 µm
0-200 µm
0-10 µm
0-50 µm
0-300 µm
0-4 µm
0-50 µm
0-50 µm
0-50 µm
0-50 µm
0-50 µm
0-50 µm
Detection
limit
0.3 µM
0.1 µM
0.1 µM
25 µM
0.1 µM
0.1 µM
1 µM
0.1 µM
0.1 µM
0.1 µM
0.1 µM
0.1 µM
0.1 µM
Response
time (90%)
< 30 sec
< 30 sec
< 35 sec
< 65 sec
< 65 sec
< 65 sec
< 65 sec
< 65 sec
< 65 sec
< 65 sec
< 65 sec
< 65 sec
< 65 sec
*Stainless steel cap, 10 mm outer diameter
Stirring sensitivity for all types < 2%
Sensors must never be exposed to N
2
O concentrations above their working range.
LR: Low Range; SR: Standard Range; IR:Intermediate Range; HR: High Range.