Portable Oxygen meter,
OXI 45
This instrument is for measuring DO
where the reliability and precision attainable in the best labs is required.
Depending on the electrode used, it
can be used as a standard or highprecision oxygen meter.
It is mainly used in natural and
waste-waters. For fish-farms, CRISON
recommends using an electrode
protected against fish attack.
Galvanic sensor. The OXI 45 uses
this type of sensor for measuring,
because it is the fastest and most
reliable, and is the best for portable
equipment.
Laboratory Catalogue 2004
1st Edition
Key features
Double LCD display for simultaneous
measurement of saturation % or mg/l
and temperature of DO
Automatic compensation for
temperature, using an NTC sensor
integrated within the probe.
Compensation for atmospheric
pressure and salinity, by keying in
the data manually.
Automatic 100% one point aircalibration.
87
The instrument automatically
switches itself off if no keys are
pressed for 5 minutes. This function
can be disabled by the user.
With the instrument on, the batteries
will last > 300 hours.
“Long-life” membrane keypad,
for industrial use, for up to 6 million
strokes per key.
The ABS container is IP 65 watertight
and dust-proof..
Optional carry-case, holds everything
you need to work in comfort.
Certificates
Supplied with the EC Declaration of
Conformity as per directive EMC 89/
336/EC, and specifications certificate.
For further information, please see
page 132.
88
OXI 45 (continued)
Keypad
The user can access all
the instrument’s functions using only 4
keys
Display examples
Simultaneous measurement of DO in
mg/l and temperature
mg/l
With
DurOx
electrode
Operation
The OXI 45 software is similar to that
of other CRISON portables. Designed
to make it as easy as possible to use
this new range of instruments
ºC
mg/l
With
CellOx
electrode
ºC
Technical specifications
Simultaneous measurement of DO in
saturation % and temperature
With DurOx 325
Measuring ranges
Resolution
With
DurOx
electrode
ºC
With
CellOx
electrode
With CellOx 325
Measuring ranges
ºC
Equipment in calibration
Low battery warning
mg/l
ºC
Resolution
Saturation
Concentration
Saturation
Concentration
0 ... 600 %
0.0 ... 60.0 mg/l
1%
0.1 mg/l
Saturation
Concentration
Saturation
Concentration
0 ... 199.9 % and 200…600 %
0.0 ... 19.99 mg/l and 20.0…60.0 mg/l
0.1 % and 1 between 200…600 %
0.1 mg/l and 1 between 20.0…60.0 mg/l
Temperature
0.0 ... 50.0ºC
Measuring error (±1 digit)
O.D.: ≤ 0.5% of measured value
Temp.: ≤ 0.2ºC
Reproducibility (±1 digit)
O.D.: ≤ 0.2% of measured value
Temp.: ≤ 0.1ºC
Correction of atmosferic pressure
Automatic, with manual data entry
Correction of salinity
Automatic, with manual data entry
Temperature compensation
Automatic IMT compensation, with NTC sensor,
Calibration
100% of DO saturation
Display
Liquid crytal, with icons
Keypad
Membrane, 4 keys. Guaranteed for up to 6 million strokes
per key.
Material: PET with protective treatment.
Input
Electrode CellOx or DurOx, with DIN connector
Power supply
Two 1.5V, type AA batteries, autonomy 330 h
EMC (Electromagnetic compatibility)
Meets EC, EN 61326, EN 61326/A1
EN 61010-1, EN 61010-1/A2
Degree of protection
IP 65
Permitted ambient conditions
Operating temperature 0 ...50ºC
Storage and transport temperature –15 ... 65ºC
< 80% relative humidity, non-condensing
Enclosure
Casing material: ABS
Physical parameters
Weight 200 g Dimensions 160 x 75 x 50 mm
Specifications subject to change without notice
Ordering information
Code
Description
45 00
Oxymeter OXI 45, without accessories
45 01
Oxymeter OXI 45, with carry case, without electrode
ELECTRODE: The electrode should be requested separately for all versions of the OXI 45, see page 92.
Laboratory Catalogue 2004
1st Edition