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Technical data
Ref. B210823EN-A ©Vaisala 2009
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Performance
Measurement range 0 ... 100 % O
2
Accuracy (including noise, linearity and
repeatability) ±0.2 % O
2
Temperature range over T range ±2 % of reading
Stability ±1 % of reading/yr
Zero drift ±0.1 % O
2/
yr
Response time of measurement 3 s
Diffusion limited response in still air T
63
/T
90
without fi lters 10 s / 20 s
with stainless steel mesh fi lter 10 s / 25 s
with stainless steel mesh fi lter and
PTFE fi lters 30 s / 70 s
Pressure dependence without pressure
compensation
0.8 ... 1.2 bar -2 % of reading
1.2 ... 1.4 bar -5 % of reading
Accuracy of pressure compensation ±0.25 % of reading
Background gas effects for CO
2
and H
2
O uncompensated
< 1% of reading for <6 vol -% CO
2
< 1% of reading for gas dew point < 30 ˚C
Accuracy of background gas compensation
0 ... 50 vol-% CO
2
±-0.5 % of reading
0 ... 300 g/m
3
H
2
O (T
d
=80 ˚C) ±1 % of reading
Classifi cation
OMT364 CLASSIFICATIONS FOR THE TRANSMITTER
USA and Canada FM, Non-incendive for Class I,
Division 2, Groups A, B, C, and D.
T
a
= -20 ˚C to +60 ˚C
OMT364 CLASSIFICATIONS FOR THE PROBE
USA and Canada FM, Suitable for Class I, Division 1,
Groups A, B, C, and D.
T
a
= -20 ˚C to +80 ˚C
Inputs and outputs
Power supply
input range 11 ... 36 VDC
Power consumption
maximum 6W
typical 3W
Analog output 0/4 ... 20 mA sourcing
maximum load 500
Serial output (2-wire, non-isolated) RS-485
Alarm/control relay 30 VAC/60 VDC
Operating environment
Operating temperature range for
probe (in-line installation) -20 ... +80 ˚C
electronics (housing) (Kalrez® seals)
-20 ... +60 ˚C
transmitter (ambient gas
measurement) -20 ... +60 ˚C
Storage temperature range -55 ... +80 ˚C
Operating pressure range 0.8 ... 1.4 bar
Maximum pressure range for probe up to 10 bar
Compliance
IEC(EN)-61326 Electrical equipment for measurement,
control and laboratory use. EMC requirements.
Laser safety Class 1 laser product
Mechanics
Housing material G-AlSI10 Mg (DIN 1725)
Probe material AISI 316
Housing classifi cation IP66
Weight, transmitter and probe 2.2 kg
Weight, sample cell 2.6 kg
Mounting fl ance diameter 97 mm
Cable bushing Cable gland M20 x 1.5
Stainless steel mesh fi lter openings ø 310 m
Wetted materials
AISI 316, Kalrez
®
, PTFE (optional),
SiN, MgF
2
Options and accessories
Hydrophobic PTFE fi lter, pore size 8 m with
Kalrez
®
O-rings 217056
1/2” NPT conduit fi tting 217917
Sample cell with wall-mounting bracket
gas fi ttings for O.D. 6 mm tube
volume 260 m
3
T63 response time with 1 l/min
sample fl ow and mesh fi lter, 18 s
with Kalrez
®
O-rings 216619
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