E+E EE300Ex-M1 Specifications
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EE300Ex-M1
EE300Ex-M1
Humidity and Temperature Sensor
for Intrinsically Safe Applications
The EE300Ex intrinsically safe sensor reliably measures relative humidity (RH) and temperature (T) in explosion hazard areas. It com-
plies with the classications for Europe (ATEX), International (IECEx),
USA / Canada (FM) and Korea (KCs) for ammable gas and dust
applications.
The entire device can be placed in the explosion endangered area.
The remote sensing probe allows for classication up to T6.
Measurement performance
The well proven E+E humidity sensors and competence in calibration
allow for highly accurate and long term stable measurement over the
full range 0…100 % RH and -40…180 °C (-40...356 °F), with pressure
rating up to 20 bar (300 psi).
Besides the RH and T measurement, the EE300Ex calculates all
humidity related parameters such as dew point temperature (Td),
frost point temperature (Tf), absolute humidity (dv) or mixing ratio (r).
Moisture in oil measurement
The EE300Ex with ATEX, IECEx and KCs approval is suitable also
for measuring water content (X) in ppm and water activity (aw) in
isolation, lubrication and hydraulic oils. Typical applications include oil
puriers and online monitoring of lubrication and hydraulic oils.
Supply and outputs
The device can be powered by any intrinsically safe supply unit or via
Zener barriers. The measured or calculated data is available on two
4…20 mA, 2-wire outputs and on the LCD display.
Robust, functional design
The stainless steel enclosure and sensing probe are suitable for harsh environment in challenging industrial applications.
The EE300Ex design facilitates the installation as well as the replacement of the measuring section (electronics and
probe) without time consuming wiring.
Easy Conguration and Adjustment
The setup of the analogue outputs as well as the adjustment of the RH and T reading can be easily performed with the
optional EE-PCA Product Conguration Adapter and the free EE-PCS Product Conguration Software.
Typical Applications
Chemical process control
Pharmaceutical applications
Explosive / hazardous storage rooms
Flour mills
Oil purifiers
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Features
Gas and dust in zone 0 / 20 and Div. 1
Stainless steel enclosure and probe
Best accuracy up to 180 °C (356 °F)
Pressure tight up to 20 bar (300 psi)
Inspection certicate according to DIN EN 10204-3.1
EE300Ex-M1
EE300Ex-M1
v2.8 / Modification rights reserved
Protective sensor coating
The E+E proprietary sensor coating is a hygroscopic layer applied to the sensing elements, their leads and soldering
points. The coating substantially extends sensor life-time and ensures optimal measurement performance in corrosive
environments (salts, o-shore applications). Additionally, it improves the long term stability of E+E sensors in dusty, dirty
or oily applications by preventing stray impedance caused by deposits on the active sensor surface or on the electrical
connections.
Types
Type Pressure range Working range Probe Ø mm (inch)
T1 Wall mount -40...60 °C
(-40...140°F) 12 (0.47)
T7 Remote probe with cut-in tting, pressure tight 0.1...20 bar (1.5...300 psi) -40...180 °C (-40...356°F) 12 (0.47)
Remote probe with sliding tting for assembly /
T10
disassembly under pressure, pressure tight
0.1...20 bar (1.5...300 psi) -40...180 °C (-40...356°F) 13 (0.51)
Dimensions in mm (inch)
179
Types: T1 / T7 / T10
Enclosure
(7)
60 (2.4)151 (5.9)
98 (3.9)
L
Ø13
(0.51)
adjustable min. 23 (0.9) /
max. 164 (6.5) / 364 (14.3)
Ø12
(0.47)
code „probe length “
code „cable length“
15 (0.6)
G1/2" ISO or NPT
Type: T10
Remote probe 20 bar (300 psi) with sliding fitting for assembly /
disassembly under pressure
53 (2.1)
code „cable length“
L
Type: T1
Wall mount
Ø 12 (0.47)
Ø12
(0.47)
L
code „probe length “
G1/2" ISO or 1/2" NPT
15 (0.6)
Types: T7
Remote probe 20 bar (300 psi)
L - length of filter mm (inch)
Stainless steel sintered filter 33 (1.3)
PTFE, H2O2 filter 33 (1.3)
Stainless steel grid filter 39 (1.5)
Oil filter 32 (1.26)
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v2.8 / Modification rights reserved
EE300Ex-M1
∆T [°C]
∆T [°C]
Technical Data EE300Ex
Measurands
Relative humidity
Measuring range 0...100 % RH
Accuracy1)
(including hysteresis, non-linearity and repeatability, -15...40 °C (5...104 °F) ≤90 % RH ± (1.3 + 0.3%*mv) % RH
traceable to international standards, administrated by NIST, PTB, BEV...) -15...40 °C (5...104 °F) >90 % RH ± 2.3 % RH
mv = measured value -40...180 °C (-40...356 °F) ± (1.5 + 1.5%*mv) % RH
Temperature dependence electronics, typ. 0.03 % RH/°C
Response time t90 < 30 s with stainless steel filter at 20 °C (68 °F)
Temperature
Measuring range Wall mount: -40...60 °C (-40...140 °F)
Accuracy
Temperature dependence of electronics, typ. 0.005 °C/°C
Calculated parameters
from up to Units
Dew point temperature Td -40 (-40) 60
Frost point temperature Tf -40 (-40) 60 (140) 100 (212) °C (°F)
Wet bulb temperature Tw 0 (32) 60 (140) 100 (212) °C (°F)
Water vapour pressure e 0 (0) 200 (3) 1 100 (15) mbar (psi)
Mixing ratio r 0 (0) 425 (2 900) 999 (9 999) g/kg (gr/lb)
Absolute humidity dv 0 (0) 150 (60) 700 (300) g/m³ (gr/ft³)
Specic enthalpy h 0 (0) 400 (150 000) 2 800 (999 999) kJ/kg (Btu/lb)
Water activity aw 0 - 1 1
Water content X 0 - 100 000 ppm
Outputs
Freely selectable and scalable outputs 2 x 4-20 mA (2-wire) galvanically isolated RL= (Vcc-9V)/20mA
General
Supply voltage V
Current consumption Max. 20 mA per channel
Protection class of enclosure IP65 / NEMA 4
Cable gland M16 for cable diameter 5 - 10 mm (0.2" - 0.4")
Electrical connection Screw terminals max. 1.5 mm² (AWG 16)
Working temperature range Probe according measuring range
Storage temperature range Electronics and probe -20...60 °C (22...140 °F)
Electromagnetic compatibility EN 61326-1 EN 61326-2-3 ICES-003 ClassB
Material Enclosure stainless steel 1.4404
1) 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).
-25...70 °C (-13...158 °F) ± (1.4 + 1%*mv) % RH
Remote probe: -40...180 °C (-40...356 °F)
130
-40 0-10-20-30 10 50403020 60 100908070 140
110 150 170160
120
Wall mount Remote probe
(140) 100 (212) °C (°F)
Output 1 must be connected!
= (9+RL*0.02) V DC V
cc min
= 28 V DC RL = load resistor
cc max
M20 for cable diameter 10 - 14 mm (0.4" - 0.6")
Electronics without display -40...60 °C (-40...140 °F)
Electronics with display -20...60 °C
(-4...140 °F)
Industrial Environment FCC Part15 ClassB
Probe cable PTFE
Probe (without filter) stainless steel 1.4301
T [°C]
T [°C]
180
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