E+E EE211 Specifications

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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

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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

(3.54

+0.11

“)

(1.81“)

(0.2“)

101

(3.98“)

CABLE GLAND M20

80.6

(3.17“)

75 (2.9”)

(2”)

M12x1

Ø6

0.24“)

(

(0.3”)

Ø12

(0.47”)

Ø 13

(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).

(incl. hysteresis,

± ∆°C

°C

(23...86 °F)

EE211

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Outputs

Analogue output 0-5 V / 0-10 V -1 mA < IL < 1 mA I (RH: 0...100 %; T: see ordering guide) 0-20 mA / 4-20 mA (3-wire) R

≤ 500 Ohm R

Digital interface RS485, Modbus RTU, max. 32 unit load devices in one bus

General

Power supply (Class III) 15 - 35 V DC1) or 24 V AC ±20 % Current consumption at 24 V

Voltage ouput

Current ouput

Digital interface

without Display with Display without Display with Display

max.

38 mA

75 mA

typ.

23 mA

typ.

Display 1, 2 or 3 lines, user configurable, with backlight Connection Screw terminals, max. 1.5 mm2 Enclosure material Polycarbonate, UL94V-0 (with display UL94HB) approved T-probe material Stainless steel 1.4571 Protection class IP65 / NEMA 4 Cable gland M20 x 1.5

Electromagnetic compatibility EN61326-1 (Industrial Environment) EN61326-2-3 Temperature range Operation / storage: -40...60 °C Temperature range with display Operation: -20...50 °C Storage: -20...60 °C

1) USA & Canada: class 2 supply required, max. supply voltage 30V

AC DC

max. 49 mA

rms

typ. 85 mA

rms

typ. 40 mA

rms

(-40...140 °F) (-4...122 °F)

(-4...140 °F)

max. 13 mA max. 19 mA

rms

max. 34 mA max. 40 mA

rms

typ. 8 mA typ. 17 mA

rms

= load current

= load resistor

Ordering Guide

Model humidity + temperature M1

Output

Hardware

Display

Temperature probe Metal EE07-MT AM7

Output 1

Scaling 1 low

Scaling 1 high

Output 2

Scaling 2 low

Setup analogue outputs

Scaling 2 high

Unit

Setup

RS485

1) Factory setting: Baud rate 9600, Even Parity, Stopbits 1. Other factory settings available upon request. Baud rate choice: 9600 / 19200 / 38400. Modbus Map and communication setting: See User Guide and Modbus Application Note at www.epluse.com/ee211

2) Factory setting: For analogue output versions the display shows the measurands selected for output 1 and output 2. For digital output versions the display shows RH and T

0-5 V A2 0-10 V A3 0-20 mA A5 4-20 mA A6 RS485 - Modbus RTU none no code yes D2

relative humidity RH % no code other measurand (xx see Measurand Code below) MAxx 0 no code

value SALvalue

100 no code

value SAHvalue

temperature °C no code temperature °F MB2 other measurand (xx see Measurand Code below) MBxx

-40 no code

value SBLvalue

60 no code

value SBHvalue

metric-SI no code

non-metric U2

EE211

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EE211

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Measurand Code

wet bulb temperature Tw

water vapour partial pressure e

enthalpy h

dew point Td

frost point Tf

mixing ratio r

absolute humidity dv

°C 52 °F 53 °C 65 °F 66 g/kg 60 gr/lb 61 g/m³ 56 gr/ft³ 57

Order Examples

EE211-M1A6AM7MB60SBL100SBH300

Model: Humidity + Temperature Output: 4-20 mA Display: none Temperature probe: Metal EE07-MT

Output 1: relative humidity RH (%) Scaling 1 low: 0 Scaling 1 high: 100

Output 2: mixing ratio r (g/kg) Scaling 2 low: 100 Scaling 2 high: 300

EE211-M1J3D2AM7U2

Model: Humidity + Temperature Output: RS485 Display: yes Temperature probe: Metal EE07-MT

Unit: non-metric

Accessories

- Product configuration software EE-PCS (free download: www.epluse.com)

- Power supply adapter V03 (see data sheet Accessories)

- Protection cap for 12 mm (0.47”) probe HA010783

- USB configuration adapter HA011066

- Cable for T-Probe (M12x1 socket, M12x1 plug)

- 5 m (16.4 ft) HA010802

- 10 m (32.8 ft) HA010803

2 m (6.6 ft) HA010801

°C 54

°F 55 mbar 50 psi 51 kJ/kg 62 BTU/lb/kg 64

EE211

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