Endress+Hauser OxyMax W COS 31, Руководство по эксплуатации

Страница: 27 / 30

OxyMax W COS 41 9 Technical data
Hauser 25
9 Technical data
General specifications
Manufacturer Hauser
Product name OxyMax W COS 41
Ambient conditions
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 Membrane covered amperometric sensor
Parameter Oxygen partial pressure-proportional current signal
Measuring range (with Liquisys COM 223/253-DX/DS) 0.05 ... 20.00 mg/l
0.00 ... 200% SAT
0 ... 400 hPa
Slope approx. 300 nA at 20°C and 1013 hPa
Temperature compensation NTC temperature sensor 30 k
Ω
, 0- 50°C
Response time T
90
: 3 minutes
T
99
: 9 minutes (both at 20°C)
Polarisation time < 60 minutes
Minimum flow speed typ. 0.5 cm/s for 95% measured value display
Drift with continuous polarisation: < 1% / month
Zero current zero-current-free
Sensor monitoring Connected to Liquisys M COM 223/253-DX/DS:
cable interruption or short-circuit,
incorrect measurement and sensor passivation
Mechanical construction
Materials Sensor body: POM
Membrane cap: POM
Cathode: Gold
Anode: Silver/silver bromide
Threaded connection G 1 and NPT ¾"
Electrical connection Double-screened coaxial cable with 2 pilot wires, termi-
nal connection
Membrane thickness approx. 50 µm
max. total cable length for cable extension 50 m
Weight (at cable length) 0.7 kg (7 m) or 1.1 kg (15 m)
Ingress protection IP 68
Cable connection (sensor side) Fixed cable or TOP 68 connection