Xylem LFOx1400_LFOx1400-ID - Manual (Page 22)

Technical data LFOx1400(-ID)
46 ba75523e04 07/2011
Materials Working electrode Gold
Counter electrode Lead
– Membrane cap
– Cap nut POM
Membrane FEP, 13 µm
– Sensor head Epoxy, PEEK
– Plug connection PEEK
Screw thread base Stainless steel 1.4571
Seals FPM (Viton)
Closing cap POM
Plug connection Plug type 3-pole, watertight plug connection with cap nut,
reverse polarity protected, contacts gold-plated
Pressure
resistance
Sensor with closed plug
connection IP 68 (3 x 10
5
Pa or 3 bar)
The DO module meets the requirements according to article 3(3) of the 97/
23/EC directive ("Pressure equipment directive").
Measurement
conditions
Measuring ranges at
20 °C 0 ... 50 mg/l DO
0 ... 600 % DO saturation
0 ... 1250 mbar DO partial pressure
Polarization time min. 30 ... 50 min after changing the electrolyte,
it is not necessary to connect the sensor to the
measuring instrument for polarization
Temperature range 0 ... 50 °C
Max. allowed overpres-
sure 3 x 10
5
Pa (3 bar)
Depth of immersion with
conductivity basic module min. 8 cm
max. 20 m (depending on the cable length of
the conductivity basic module)
Operating position any
Approach flow > 3 cm/s at 10 % measurement accuracy
10 cm/s at 5 % measurement accuracy
18 cm/s at 1 % measurement accuracy
Storage
conditions
Recommended storing
method in the OxiCal
®
-CX calibration vessel (moist-
ened)
Storage temperature 0 ... 50 °C