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EE33-M
E33-M is optimized for reliable measurement under
demanding weather conditions. Besides accurate
measurement of relative humidity (RH) and temperature
(T), the device calculates all additional physical quantities
like dew point temperature, absolute humidity and mixing
ratio. A dual heating system prevents condensation on
the RH sensor, on the sensing probe and on the lter
cap, which leads to extremely short response time and
fast recovery after condensing conditions. The measuring
principle with separate RH and T probes enables precise
continuous measurement even at permanent high
humidity.
The proprietary E+E coating protects the RH sensor and
its leads against corrosive and electrically conductive
pollution. The probes are compatible with modern,
ventilated radiation shields, like the LAM630.
With an optional connecting cable and the EE-PCS
software (included in scope of supply) the user can easily
perform an adjustment or a conguration of the outputs.
Humidity and Temperature Transmitter for
High-end Meteorological Applications
EE33-M
with radiation shield
Typical Applications
meteorology
wind turbine generators
road icing warning
off-shore measurements
precise measurement close to condensation
condensation prevention through dual heating
protection against pollution and corrosion
calculation of additional physical quantities
Monolithic Humidity Sensor
The heart of EE33-M is the monolithic HMC01 sensor, developed and
manufactured in thin-film technology by E+E Elektronik. HMC01 combines the
moisture and heating element on a single substrate. Condensation is prevented by controlled heating of the sensor. The proprietary E+E coating protects
the sensor and its leads against pollution and corrosion.
Radiation Shield
In order to minimize the impact of rain, snow, ice and solar radiation on the measurement the EE33-M must be mounted inside a radiation shield.
The radiation shield LAM630 is suitable for mounting onto a mast with 30-35mm
diameter. Forced ventilation is provided by the control unit STEG6003. Up to 4 probes
can be mounted using cable glands (Ø 18-25 mm).
Features
monolithic RH sensor
protective layer
(coating)
heated,
monolithic
sensor
LAM630
STEG6003
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EE33-M
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Network Compatibility / Ethernet Interface
The optional RS485 interface (order code N) allows for
building a network of up to 32 transmitters.
The measurement data can be collected in a shared
database and made available for all kinds of further
processing.
Connection Types
standard plug option C03 plug option C08
3x M16 x 1.5
Dimensions (mm)
Housing
135 (5.3“)
90 (3.5“)
Lumberg
RKC 5/7
power supply+
analogue output
66,5 (2.6“)
plug option C06
Lumberg
RSC 5/7
M16x1.5
RS232
Humidity probe
∅12 (0.47“)
code “cable length”
(3.66“)39 (1.54“)
93
53 (2.09“)
Y-splitter *
Lumberg
RSC 5/7
RS485
network
* Siemens 6ES7 194-1KA01-0XA0
Lumberg
RKC 5/7
power supply+
analogue output
(0.94“)
∅24
EE33-M
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code “cable length”
150 (5.9“)
∅6
(0.24“)
35 (1.38“)
EE33-PFTM
Probe material: stainless steel
Adapter material: polyoxymethylene
Cable gland: polycarbonate
(0.94“)
∅24
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Technical Data
Measurement values
Relative humidity
Humidity sensor
Working range1) 0...100 % RH
Accuracy*) (including hysteresis, non-linearity and repeatability)
-15...40 °C
-15...40 °C (5...104 °F) >90 % RH ± 2.3 % RH
-25...70 °C (-13...158 °F) ± (1.4 + 1 %*mv) % RH
-40...180 °C (-40...356 °F) ± (1.5 + 1.5 %*mv) % RH
Temperature dependence of electronics typ. ± 0.01% RH/°C (0.0055% RH/°F)
Response time t
Temperature
Temperature sensor Pt1000 DIN A
Working range sensing head -40...180 °C (-40...248°F)
Accuracy
Temperature dependence of electronics typ. ± 0.005 °C/°C
External temperature probe Pt1000 (DIN A)
Outputs
2)
Two freely selectable and scaleable analogue outputs 0 - 1 V -1 mA < I
0 - 5 V -1 mA < I
0 - 10 V -1 mA < I
4 - 20 mA R
0 - 20 mA R
Digital interface RS232
optional: RS485
Max. adjustable measurement range
Humidity RH 0 100 % RH
Temperature T -40
Dew point temperature Td -40
Frost point temperature Tf -40
Wet bulb temperature Tw 0
Water vapour partial pressure e 0 1100
Mixture ratio r 0 999
Absolute humidity dv 0 700
Specific enthalpy h 0 2800
1)
(5...104 °F) ≤90 % RH ± (1.3 + 0.3 %*mv) % RH
at 20 °C (68 °F) < 15 s
90
2)3)
heated, monolithic HMC01
∆°C
L
L
L
< 500 Ohm
L
< 500 Ohm
L
min. max. Unit
(-40)
(-40)
(-40)
(32)
180
100
100
(248)
(212)
(32)
0
(212)
(15)
(9999)
(300)
(99999)
< 1 mA
< 1 mA
< 1 mA
°C
°C (°F)
°C (°F)
°C (°F)
°C (°F)
mbar (psi)
g/kg (gr/lb)
g/m3 (grf
kJ/kg (Btu/lb)
3
)
General
Supply voltage 8...35 V DC
12...30 V AC
Current consumption - 2x voltage output for 24 V DC/AC: typ. 40 mA / 80 mA
- 2x current output typ. 80 mA / 160 mA
System requirements for software WINDOWS 2000 or later; serial interface
Housing / protection class Polycarbonate / IP65
Cable gland M16 x 1.5
Electrical connection
Working and storage temperature range of electronics -40...60 °C (-40...140 °F)
Electromagnetic compatibility according to EN61326-1 EN61326-2-3 ICES-003 ClassA
Industrial Environment FCC Part15 ClassA
1) Refer to the working range of the humidity sensor.
2) Can be easily changed by software.
3) Refer to accuracies of calculated values (www.epluse.com/feuchtemessung).
*) 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).
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screw terminals up to max. 1.5 mm² (AWG 16)
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Working Range Humidity Sensor
Relative humidity [%RH]
Temperature [°C]
Connection Diagram
The grey area shows the allowed measurement range for the
humidity sensor.
Operating points outside of this range do not lead to
destruction of the sensor, but the specified measurement
accuracy cannot be guaranteed.
Scope of Supply
- EE33-M Transmitter according to Ordering Guide
- Operation Manual
- Inspection certificate according to DIN EN 10204 - 3.1
- Cable connector RKC 5/7 for customer assembly, only for option C03 or C08
- Cable connector RSC 5/7 for customer assembly, only for option C06 or C08
- Y-junction for network connection, only for option N or C08
- M16 cable gland, only for option C03, C06 or C08
Accessories / Replacement Parts (For further information, see data sheet „Accessories“)
- PTFE stainless steel filter HA010114
- Exchange membrane for PTFE stainless steel filter HA010114ME
- Stainless steel grid filter HA010109
- Interface cable for plug option C06 HA010311
- RS485 Kit for network HA010605
- Mounting set for mast with Ø 34 - 54 mm HA010213
- Radiation shield LAM630 with control unit HA010508
- Calibration-Kit see data sheet „Humidity Calibration Kit“
- Configuration adapter see data sheet „EE-PCA“
- E+E Product Configuration Software EE-PCS (download at www.epluse.com/configurator)
EE33-M
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Ordering Guide
Filter PTFE stainless steel filter 2
Cable length
Probe length according to „Dimensions“ 2
Interface
Plug
Hardware Configuration
Output 1
Output 2 same choice as output 1 A - J
Type of output signal
Software Configuration
Measured value units
T-scaling
(T / Td / Tf / Tw)
for output 1 + 2
1 m 01
2 m 02
RS232 no code
RS485 N
cable glands no code
1 plug for power supply and outputs C03
1 cable gland / plug for RS232 C06
2 plugs for power supply / outputs and RS485 network C08
Relative humidity RH [%] A
Temperature T [°C] B
Dew point temperature Td [°C] C
Frost point temperature Tf [°C] D
Wet bulb temperature Tw [°C] E
Water vapour partial pres. e [mbar] F
Mixing ratio r [g/kg] G
Absolute humidity dv [g/m³] H
Specic enthalphy h [kJ/kg] J
0-1 V 1
0-5 V 2
0-10 V 3
0-20 mA 5
4-20 mA 6
metric / SI no code
non metric / US E01
-40...60 T002
-30...70 T008
-20...80 T024
EE33-PFTM
Order Example
EE33-PFTM2022N/AB3-T002
Hardware Configuration: Software Cofiguration:
Filter: PTFE stainless steel filter Output 1: Relative humidity
Cable length: 2 m Output 2: Temperature
Probe length: see dimensions Type of output signal: 0-10 V
Interface: RS485 Measured value units: metric / SI
Plug: cable glands T-scaling: -40...60 °C
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