19
User Manual MOP301 Digital Moisture in Oil Immersion Probe
8 Technical Data
Measurands
Water activity (aw) / Water content (x)
Measuring range
0...1 aw
0...100 000 ppm; actual range depends on the oil type, for non-
mineral transformer oil, specific solubility parameters are needed
(ppm output is valid in the range 0...100 °C
(32...212 °F)
)
Response time t
90
, typ.
10 min. in still oil
@ 20 °C (68 °F)
Accuracy
1)
Including hysteresis, non-linearity and repeatability
0...40 °C
(32...104 °F)
(0...0.9 aw)
±0.02 aw
(0.9...1 aw)
±0.025 aw
-40...120 °C
(-40...356 °F)
(0...1 aw)
±0.03 aw
Resolution
0.0001 aw
Temperature (T)
Measuring range
-40...120 °C
(-40...248 °F)
Accuracy
1)
Resolution
0.01 °C
Output
Digital interface
RS485 (MOP301 = 1 unit load)
Protocol
Modbus RTU
Factory settings
9 600 Baud, parity even, 1 stop bit, Modbus address 70
Supported baud rates
9 600, 19 200, 38 400, 57 600, 76 800 and 115 200
Data types for measured values
FLOAT32 and INT16 registers
General
Power supply class III
(EU) / class 2 (NA)
8 - 35 V DC
2)
Power consumption, typ.
40 mW (without termination resistor)
Electrical connection
M12x1, 4 poles
Protection rating
IP66 / NEMA 4X
Pressure rating
20 bar
(290 psi)
Probe material
Stainless steel 1.4404
Cable jacket
3)
HFS 125XL, black, oil and fuel resistant
Temperature working range
Sensing e filter cap: -40...125 °C
(-40...257 °F)
Probe: -40...120 °C
(-40...248 °F)
Cable: -40...120 °C
(-40...248 °F)
M12 connector: -25...90 °C
(-13...194 °F)
Storage conditions
-40...80 °C
(-40...176 °F)
0...95 %RH, non-condensing
Electromagnetic compatibility
EN 61326-1 EN 61326-2-3
ICES-003 ClassA
Industrial Environment FCC Part15 ClassA
Shock and vibration
Tested acc. to EN 60068-2-6 and EN 60068-2-27
Configuration and adjustment
PCS10 Product Configuration Software (free download) and
configuration adapter
1) Valid in fluids.
Traceable to international standards, administrated by NIST, PTB, BEV...
The accuracy statement includes the uncertainty of the factory calibration with an enhancement factor k=2 (2-times standard deviation). The accuracy
was calculated in accordance with EA-4/02 and with regard to GUM (Guide to the Expression of Uncertainty in Measurement).
2) USA & Canada class 2 supply required, max. supply voltage 30 V DC.
3) Please mind the mounting and installing instructions included in the user manual.
-40 -20
0
20 40 60 80 100 120 140 160 180
0
0.1
0.2
0.3
0.4
0.5
0.6
∆
T [°C]
T [°C]
40 20
0
40
20
80
60
120
100
0.15
0.45
0.1
0.2
0.3
0.4
0.5
0
∆T [°C]
T [°C]
∆T [°C]
T [°C]
