Datasheet

102
v1.3 / Modification rights reserved
EE364
Measurands
Water activity
Sensor HC1000-400
Measurement range 0...1 a
w
Accuracy at 20°C
1)
±0.02 a
w
(0...0.9 a
w
) ±0.03 a
w
(0.9...1 a
w
)
Response time t
90
< 10min. in still oil
Temperature
Sensor Pt1000 DIN A
Accuracy at 20°C in oil ±0.2°C (0.36 °F)
Output
2 x analogue output 4 - 20mA (3-wire technology) R
L
< 500 Ohm
(freely selectable and scalable for a
w
, T, ppm)
Digital output MODBUS RTU
General
Supply voltage 10
*)
...28V DC *) 10V+0.02*R
L
Power consumption at 24V DC <40mA
Pressure rating 0...20 bar (0...290 psi)
Housing / protection rating Stainless steel 1.4404 / IP65
Electrical connection M12x1 8-pin plug
Sensor protection Stainless steel filter
Oil temperature -40...80°C (-40...176 °F)
Ambient temperature -40...60°C (-40...140 °F)
Storage temperature -40...60°C (-40...140 °F)
Electromagnetic compatibility EN61326-1 EN61326-2-3
Industrial environment
1) The accuracy statement includes the uncertainty of the factory calibration with an enhancement factor k=2 (2 x 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).
The EE364 is an innovative moisture in oil transmitter, suitable for
OEM applications. The high measurement accuracy and excellent
long-term stability make the EE364 ideal for online monitoring of
moisture in transformer, lubricating and hydraulic oil, as well as
diesel fuel.
The compact design and rugged stainless steel housing allow a
space-saving installation in the most demanding applications. The
EE364 measures water activity (aw), oil temperature (t) and
calculates the absolute water content (x). The measured values
are available on two 4-20mA outputs and one digital output with
MODBUS RTU interface.
The analog outputs can be individually scaled and configured
using the optional converter cable and the free EE-PCS Product
Configuration software.
EE364
Compact moisture in oil transmitter
Monitoring of
- Transformer oil
- Lubrication oil
- Hydraulic oil
- Engine oil
- Diesel fuel
Typical applications Features
Measurement of water activity (a
w
), temperature
and water content (x) in ppm
Two configurable 4…20 mA outputs
MODBUS-RTU interface
Pressure rating 20 bar
G ½" ISO or ½" NPT process connection
EE364
Technical data
Modbus Map
The measured values are 32Bit float values. The factory-set slave ID is 243 as integer 16Bit value. This ID can be
customised in the register 0x00 (value range 1 - 247 permitted). For Modbus settings please see Application Note AN0103.
Transmission rate factory settings are: baud rate 9600, parity even and stop bit 1.
EE364
Register address Protocol address Parameter name
30052 0x33 Water activity Aw
30054 0x35 Water content Xm or Xk
30026 0x19 Temperature Tx
60101 0x64 Parameter A (write)
60103 0x66 Parameter B (write)
Register address Protocol address Parameter name
60001 0x00 Slave-ID
60002 0x01 RS485 Setting
32Bit FLOAT: 16Bit: