7
IM12J06J01-00EN-P
2. GENERAL SPECIFICATIONS
2.1 Measuring elements
:
Optical dissolved oxygen sensor in probe body and an oxygen exchange cap (OEC).
2.2 Electrical specifications
Output signal:
Bi-directional digital communication
Physical
layer:
RS485
Protocol:
MODBUS, RTU mode
Data rate:
Default 19200 b/s (8, No Parity, 2 stop bits)
Power supply:
+7 … +30 VDC
Max.
1W
in
active
mode
<
150mW
in
stand-by
mode
Cable:
Permanent, shielded, 4 wire (0.14mm
2
)
2.3 Mechanical specifications
Case/OEC:
Stainless-steel
(SS316L)
OEC sealings / material:
O-ring EPDM
OEC sealing dimensions mm (inch): ID 9x1 (0.35x0.03)
Housing size (LxDiam.):
106x12 mm (4.17x0.47)
Weight:
Min. 100g (Sensor 43g + cable 19g/m)
(0.22 lbs - 0.095 lbs + 0.015 lbs / feet)
Sensor mounting system:
Pressfit with optional adapter
Cable:
Permanent
shielded
cable,
stripped
wire end (5 mm) for terminal connection
2.4 Performance
Measuring range:
0 to 22,5 mg/L O
2
Accuracy:
± 0.05 mg/L or 1% of reading
whichever
greater
Repeatability
± 0.05 mg/L or 1% of reading
whichever
greater
Temperature accuracy:
≤
1.0°C (
≤
1.8°F)
1
Operating temperature:
0 to 50 °C (0 to 122°F)
Pressure:
0 to 3 Barg (0 to 43.5 psi) (overpressure);
0 to 0.990 Barng (0 to 14.36 psi) (under pres-
sure)
Flow rate:
2m/sec or less
2
Response time t90
≤
90 sec.
3
(at 20°C (68°F), 960-980 hPa (13.92 to 14.21 psi), humidified gas mixtures, after per
-
forming a calibration)
Note 1: Temperature measurement for process compensation only
Note 2: Hi flow rate can influence sensor performance
Note 3: From air saturated water to 0 g/L
O
2
in water (e.g. prepared by 1% sodium sulfite solu
-
tion)
