10
Technical data
General data
Manufacturer
Hauser
Instrument name
Liquisys M COM 223 F
Liquisys M COM 253 F
Input
Parameters
O
2
, temperature
O
2
measurement with COS 21
Display and measuring range
0.01 ... 20 mg/l or 0 ... 200 % SAT
Temperature compensation range
0 ... 50 °C
Pressure compensation range (optional)
500 ... 1100 hPa
Altitude adjustment range
0 ... 4000 m
Salinity adjustment range
0 ... 4.0 %
O
2
signal input for COS 21
Signal current
0 ... 650 nA
Nominal slope (sensor in air, 20 °C, 1013 hPa)
50 nA
Maximum cable length to sensor
50 m
Terminal cross-section
2.5 mm
2
Required conductor cross-section COM 223 F
COM 253 F
0.75 mm
2
/ AWG 18
1.50 mm
2
/ AWG 14
Temperature measurement with COS 21
Temperature sensor
NTC, 22 k
Ω
at 25 °C
Display range
–10 ... +60 °C
Digital inputs 1 and 2
Voltage
10 ... 50 V
Current consumption
max. 10 mA
Current input
Current range
4 ... 20 mA, galvanically separated
Load
260
Ω
at 20 mA (voltage drop 5.2 V)
Output
O
2
signal output
Current range
0 / 4 ... 20 mA, galvanically isolated; error current 2.4 /22 mA
Load
max. 500
Ω
Maximum resolution
700 digits/mA
Transfer range
∆
2 ...
∆
20 mg/l or
∆
20 ...
∆
200 % SAT
Separation voltage
max. 350 V
rms
/ 500 V DC
Overvoltage (lightning) protection
acc. to EN 61000-4-5:1995
%
Ω
°C
OM23FE10.CHP
Liquisys M COM 223 F / 253 F
Technical data
Hauser
69
