Datasheet

36
v1.8 / Modification rights reserved
EE071
Low Power OEM Humidity / Temperature
Transmitter with modbus interface
battery powered equipment
data loggers
handheld meters
highest accuracy
extreme low power consumption
calculated dew point and mixing ratio
replaced within seconds
digital output
EE071
Typical Applications
Features
Technical Data
Measuring values
Relative Humidity
Sensor element HCT01-00D
Digital output (2 wire)
1)
output value: 0.00...100.00% RH
Working range 0...100% RH
Accuracy incl. hysteresis and nonlinearity ±2% RH (0...90% RH) ±3% RH (90...100% RH)
Temperature dependence < (0.025 + 0.0003 x RH) [% rH/°C]
Temperature
Sensor element Pt1000 (tolerance class B, DIN EN 60751)
Digital output (2 wire)
1)
output value: -40.00...+80.00°C (-40...176°F)
Accuracy:
±0.2°C at 20°C
±0.6°C at the end of scale
General
Supply voltage 4 - 18V DC
Current consumption typ. 0.4mA (at a measuring rate of 1 sec. and without communication)
Max. current pulse during power-up) at UB 7V: Imax 60mA <10mA after 350μs
(with serial resistance 100 Ohm) at UB 12V: Imax 110mA <10mA after 400μs
Response Time < 300ms
Output load no bus termination
no pullup or pulldown resistor
Interface / Bus RS485 / Modbus in slavemode
Interface setting 9600 baud, 8 data bits, 1 stop bit, even parity
Housing polycarbonat / IP65
Sensor protection membrane filter, PTFE filter, metal grid filter (polycarbonate),
metal grid filter (stainless steel)
Electromagnetic compatibility
2)
EN61326-1
EN61326-2-3
Temperature range working temperature: -40...80°C (-40...176°F)
storage temperature: -40...80°C (-40...140°F)
Max. cable length 100m (328,1ft)
1) Modbus protocol 2) Module is not protected against surge
The digital humidity / temperature transmitter EE071 is optimi-
zed for the flexible use in bus applications. The standard mod-
bus RTU protocol is implemented on the RS485 interface. The
modbus transmitter EE071 is extremely energy efficient and
also ideal for use in battery-powered devices.
Calibration data and all other measurement features like linea-
rization and temperature compensation are stored in the elec-
tronic inside the probe.
By this EE071 is interchangeable and the plug connection
allows replacement within seconds. The humidity and
temperature measured values as well as the calculated variab-
les dew point and mixing ratio is available on the bus interface.
Housing Dimensions in mm (inch)
}
within probe
Polycarbonat
Metall
EE071 + M12x1 flange coupling
metal housing - EE071-HTMx
M12x1
80
(3.1“)
polycarbonate housing - EE071-HTPx
M12x1
75 (3”)
8
(0.3”)
8
(0.3”)
12
(0.47”)
12
(0.47”)
13
(0.51”)
12
(0.47”)
EE071