E+E EE660 Specifications
EE660
Low Air Velocity Sensor
The EE660 is optimized for highly accurate measurement of very low air
velocity in laminar ow control and special ventilation applications, for
instance in clean rooms.
Excellent Measurement Performance
The E+E thin lm sensing element employed in EE660 operates on
the hot lm anemometer principle, which stands for excellent accuracy
down to 0.15 m/s (30 ft/min), high insensitivity to pollution and low angular
dependency.
Analogue and Digital Outputs
The air velocity measured data is available as current and voltage outputs, on the RS485 interface with Modbus RTU or
BACnet protocol, as well as on the optional display.
Easy Conguration and Adjustment
The EE660 is user congurable with jumpers on the electronics board or via software. An optional conguration adapter
and the free EE-PCS Product Conguration Software facilitate the adjustment of EE660 and the display setup.
Features
Display
» Large, easily readable
» With backlight
» 180° rotatable
Appropriate for US mounting
requirements
» Knock-out for ½” conduit tting
Smooth cover surface
» No accumulation of dust
in protruding edges
Electronics on the underside of the board
» Optimum protection against mechanical
damage during installation
E+E sensing element
» Excellent accuracy
» Long-term stability
» Low sensitivity to pollution
» Low angular dependency
Bayonet screws
» Open/closed with
a ¼ rotation
Mounting ange
External mounting holes
» Easy and fast mounting with
closed cover
» Electronics protected against
construction site pollution
Adjustment
conguration
» Measuring range
» Response time
» RS485 Setup
» Termination resistor
Test report
according DIN EN 10204 - 2.2
190
v1.4 / Modification rights reserved
EE660
EE660
Technical Data
Measurand
Working range 1) 0...1 m/s (0...200 ft/min)
0...1.5 m/s (0...300 ft/min)
0...2 m/s (0...400 ft/min)
Accuracy at 20 °C 2) (68 °F), 0.15...1 m/s (30...200 ft/min) ± (0.04 m/s (7.9 ft/min) + 2 % of mv)
45 % RH, 1013 hPa 0.15...1.5 m/s (30...300 ft/min) ± (0.05 m/s (9.8 ft/min) + 2 % of mv)
0.15...2 m/s
Response time
Output
Analogue 0 - 10 V and 4 - 20 mA
0...1 m/s / 0...1.5 m/s / 0...2 m/s
Digital interface RS485 with max. 32 devices on one bus
Protocol Modbus RTU or BACnet MS/TP
General
Power supply (Class III) 24 V AC/DC ± 20 %
Current consumption (max.)
Angular dependence < 3% of the measured value at | ∆α | < 10°
Electrical connection screw terminals max. 1.5 mm2 (AWG 16)
Cable gland M16x1.5
Electromagnetic compatibility EN61326-1 EN61326-2-3
Industrial Environment
Housing material Polycarbonate, UL94V-0 (with Display UL94HB) approved
Protection class Enclosure IP65 / NEMA4, remote probe IP20
Temperature range working temperature probe -25 ... +50 °C
working temperature electronic -10 ... +50 °C (14...122 °F)
storage temperature -30 ... +60 °C (-22...140 °F)
Working range humidity 5...95 % RH (non-condensing)
1) Selectable by jumper, only for analogue output
2) 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).
3) Selectable by jumper (analogue) and slide switch (digital)
3)
τ
typ. 4 sec or typ. 1 sec (at constant temperature)
90
1)
-1 mA < IL < 1 mA RL< 450 Ω (linear, 3-wires)
AC supply -
no display
(30...400 ft/min) ± (0.06 m/s (11.8 ft/min) + 2 % of mv)
DC supply -
no display
Analogue ouput 74 mA rms 41 mA 180 mA rms 85 mA
Digital output 120 mA rms 50 mA - -
AC supply -
with display
DC supply -
with display
(-13...122 °F)
Dimensions mm (inch)
90 (3.54)
Duct mount
Ø > 13 (0.51)
15
(0.59)
~105 or 205
(~4.13 or 8.07)
GASKET
EE660
v1.4 / Modification rights reserved
Cable gland
M16x1.5
FOR CONDUIT
INSTALLATION
(0.59)
15
Ø > 16 (0.63)
155 (6.1)
Remote probe
60 (2.36)
6 (0.24)
155 (6.1)
(0.75)
46
(1.81)
19
101 (3.98)
Cable gland
M16x1.5
80.6 (3.17)
191
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