OxyMax W COS 71
9 Technical data
Hauser
23
9
Technical data
General specifications
Manufacturer
Hauser
Product name
OxyMax W COS 71
Environment
Storage temperature
filled with electrolyte: – 5 ... 50°C
without electrolyte: –20 ... 60°C
Process conditions
Process temperature range
–5 ... 50°C
Process pressure range
10 bar max. permissible overpressure
Underpressure operation is not permissible
Measuring system
Measuring principle
potentiostatic amperometric three-electrode sensor
Parameter
Oxygen partial pressure-proportional current signal
Measuring range
(with Liquisys M COM 223/253-WX/WS)
0.001 ... 20.000 mg/l or 0.0 ... 200.0 % SAT or
0 ... 400 hPa
Slope
approx. 8000 nA at 20 °C and 1013 hPa
Temperature compensation
NTC temperature sensor 30 k
Ω
, 0 ... 50 °C
Response time
t
90
: 0.5 min / t
99
: 1,5 min
Polarisation time
< 60 minutes
Minimum flow speed
typ. 2.5 cm/s for 95 % meas. val. display
(200 ml/min with flow assembly COA 260)
Drift
with continuous polarisation: < 1% / month
Zero current
zero-current-free
Sensor monitoring
Connected to Liquisys M COM 223/253-WX/WS:
cable interruption or short-circuit,
incorrect measurement and sensor passivation
Mechanical construction
Materials
Sensor body: stainless steel AISI 316 Ti
Membrane cap: POM
Cathode: gold
Counter electrode: Silver/Silver bromide
Reference electrode: Silber/Silver bromide
Threaded connection
G 1
Electrical connection (transmitter side)
• screened 7-wire special measuring cable
(fixed cable version)
• Double-screened coaxial cable with 4 pilot wires
(TOP 68 plug-in connection)
Cable connection (sensor side)
• SXP plug-in head (field instrument)
• Terminal block (panel mounting instrument)
Membrane thickness
approx. 25 µm
max. total cable length for cable extension
100 m
Weight (at cable length)
0.7 kg (7 m) or 1.1 kg (15 m)
Ingress protection
IP 68
Summary of Contents for OxyMax W COS 71
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