E+E EE211 Specifications

EE211

Humidity and Temperature Sensor for

The EE211 is dedicated for accurate and long term stable measurement under
continuous high humidity (>85 % RH) and condensing conditions in demanding
climate control. It features a heated humidity, and an interchangeable
temperature (T) probe.

Reliability

Excellent performance of EE211 even in condensing polluted, aggressive
environment is ensured by the combination of IP65/NEMA 4 enclosure, encapsulated
electronics inside the humidity probe and the long-term stable HCT01 sensor with
E+E proprietary coating.

Versatility

All measured and calculated data is available on the Modbus RTU interface
whereas two of the values are available on the analogue voltage or current (3-wire)
output. Up to three values can be shown simultaneously on the illuminated display.

Congurable and Adjustable

An optional USB conguration adapter and the free EE-PCS Product Conguration
Software facilitate the conguration of the EE211 as well as the RH and T

adjustment. The T probe can also be separately adjusted, the reference can be a
high accuracy dry block calibrator.

Applications

• Fruit and vegetable storage

• Cooling, ripening and environmental chambers

• Green houses and incubators

• Mushroom industry

Continuous High Humidity

Features

Opening appropriate for 1/2”

US conduit tting

External mounting holes

» Mounting with closed cover
» Electronics protected against

construction site pollution

» Easy and fast mounting

Electronics on the bottom of
the PCB

» Optimum protection against

mechanical damage during
installation

Heated sensing head

E+E Humidity sensor HCT01

» Protected solder pads
» Tested according to

automotive standard
AEC-Q200

Cast Electronics

» Mechanical protection
» Condensation-resistant

» Best performance and

long term stability under
continious high RH and
condensing conditions

Display

» Shows up to 3 measurands
» Backlight

Smooth cover surface

» No accumulation of dust in

protruding edges

IP65 / NEMA 4 Enclosure

Bayonet Screws

» Open/closed with a ¼ rotation

Separate T probe EE07-MT

» Intelligent, interchangeable T probe
» Remote connection possible
» Suitable for dry block calibrator

Test report according
to DIN EN 10204 – 3.1

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EE211

EE211

Protective Sensor Coating

The E+E proprietary sensor coating is a hygroscopic layer applied to
the active surface of the HCT01 sensing element. The coating extends
substantially the life-time and the measurement performance of the E+E sensor

in corrosive environment (salts, o󰀨-shore applications). Additionally, it improves

the sensor’s long term stability in dusty, dirty or oily applications by preventing
stray impedances caused by deposits on the active sensor surface.

Operation Principle

The humidity probe is continuously heated for avoiding the e󰀨ects of condensation and high humidity onto the sensing
elements, such as corrosion, high humidity drift or stray impedances. Thus, the probe heating leads to outstanding long
term stability. Based on the measured RH and T values, the EE211 calculates the dew point temperature Td whereas the
separate, interchangeable T-probe measures the ambient temperature. Ultimately, out of Td and T, the device calculates
the relative humidity RH as well as several other parameters like absolute humidity, mixing ratio, wet bulb temperature or
enthalpy.
For details on the operation principle please refer to the EE211 user guide at www.epluse.com/ee211.

Dimensions in mm (inch)

± 0,3

90

(3.54

+0.11

“)

46

(1.81“)

5

(0.2“)

101

(3.98“)

CABLE GLAND M20

80.6

(3.17“)

75 (2.9”)

(2”)

M12x1

50

Ø6

0.24“)

(

8

(0.3”)

Ø12

(0.47”)

Ø 13

34

(Ø 0.51“)

(1.34“)

Ø 12

(Ø 0.47“)

~ 55

(~2.16“)

Technical Data

Measurands

Relative Humidity (RH)

Sensor E+E Sensor HCT01-00D, protected by E+E proprietary coating
Working range 0...100 % RH
RH accuracy
non-linearity and repeatability) ±(1.3 + 0.007*measured value) % RH -5...30 °C

Temperature (T)

Sensor Pt1000 (tolerance class A, DIN EN 60751)
T-accuracy
(at 20 °C (68 °F) : ±0,1 °C)

1) Traceable to intern. 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).

1)

(incl. hysteresis,

± ∆°C

°C

(23...86 °F)

EE211

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