E+E EE671 Specifications

EE671
HVAC Air Velocity Probe
The compact EE671 air velocity probe is dedicated for HVAC applications.
It operates on the hot-lm anemometer principle and o󰀨ers high accuracy
and excellent long-term stability.
Reliability
The ow sensing element combines state-of-the-art E+E thin-lm techno­logy with modern transfer molding technology. By this, the EE671 is very robust and highly insensitive to contamination.
Easy installation
EE671 is available with xed cable or M12 connector. The alignment strip on the probe facilitates the correct positioning in the air ow. The mounting ange within the scope of supply enables precise setting of the immersion
depth.
Versatility
The measured data up to 20 m/s (4000 ft/min) is available either on the analogue voltage output or on the RS485 interface with Modbus RTU protocol.
Congurable and adjustable
The free EE-PCS Product Conguration Software together with an optional adapter facilitates the conguration and adjustment of the EE671.
Heating and ventilation Intake air monitoring in ovens
High accuracy and long-term stability
Outstanding resistance to contamination
Easy and quick mounting
User congurable
Technical Data
Air Velocity
Measurement range 0...5 m/s (0...1000 ft/min)
0...10 m/s
0...15 m/s
0...20 m/s Accuracy1) ±(0.2 m/s / 40 ft/min + 3 % of mv): 0.5...5 m/s (100...1000 ft/min)
at 20 °C (68 °F) / 45 % RH and 1013 hPa (14.7 psi) ±(0.3 m/s / 60 ft/min + 4 % of mv): 1... 10 m/s (200...2000 ft/min)
±(0.35 m/s /
mv = measured value ±(0.4 m/s / 80 ft/min + 6 % of mv): 1... 20 m/s (200...4000 ft/min)
70 ft/min + 5 % of mv): 1... 15 m/s (200...3000 ft/min)
Analogue output signal 0 - 1 / 5 / 10 V2), max. 1 mA Digital interface RS485 with Modbus RTU protocol, max. 32 unit load devices in one bus Response time
τ
typ. 4 s
90
General
Supply voltage (Class III) 10...29 V DC SELV Current consumption max. 50 mA at 20 m/s
Connection
cable 0.5 m plug M12 connector, 5-pin
Electromagnetic compatibility
3)
EN61326-1 EN61326-2-3 Material / protection class polycarbonate / IP50 (probe head); IP54 (housing) Temperature range operation: -20...60 °C storage: -30...60 °C Humidity range 5...95 % RH (non-condensing)
1) The accuracy statement includes the uncertainty of the factory calibration with an enhancement factor k=2 (2-fold standard deviation). The tolerance was calculated in accordance with EA-4/02 following the GUM (Guide to the Expression of Uncertainty in Measurement).
2) 0 - 10 V version only with supply voltage ≥ 15 V
3) The EE671 is not short-circuit-proof and not surge-proof (ESD-sensitive device).
(1.6 ft) / 2 m (6.6 ft) cable, PVC, 5x0.25 mm² (AWG 23) with ferrules
(0...2000 ft/min) (0...3000 ft/min)
(0...4000 ft/min)
(4000 ft/min)
(-4...140 °F)
(-22...140 °F)
FeaturesTypical Applications
188
v2.0 / Modification rights reserved
EE671
EE671
Dimensions in mm (inch)
Cable version
15 (0.6”)
Ø12
(0.47”)
Plug version
15 (0.6”)
Ø12
(0.47”)
Flange (included in the scope of supply):
80 (3.14”)
60 (2.4”)
44 (1.7”)
6 (0.2”)
Ordering Guide
130 (5.12”)
121 (4.76”)
106 (4.17”)
115 (4.53”)
Alignment strip
Alignment strip
10 (0.4”)
24.5 (0.9”)
Mounting hole Ø > 16 (0.63”)
M12x1
2.5 (0.1”)
Front view sensing head:
13.4 (0.53”)
(0.06”)
1.5
Alignment strip
The arrow indicates the air flow direction during factory adjustment.
Model
Output
AV Range
Cable length
Protocol
1) For cable version T14 only
2) 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/ee671
1)
2)
with cable
with M12 plug T15
0 - 1 V A1
0 - 5 V A2
0 - 10 V A3
RS485 J3
0...5 m/s (0...1000 ft/min) HV25
0...10 m/s (0...2000 ft/min) HV26
0...15 m/s (0...2000 ft/min) HV27
0...20 m/s (0...4000 ft/min) HV28
0.5 m (1.64 ft)
2 m (6.56 ft) KL200
Modbus RTU P1
Order Example
EE671-T14A2HV26KL200
EE671-
T14
KL50
Model: with cable Output: 0 - 5 V AV range: 0...10 m/s (0...2000 ft/min) Cable length: 2 m (6.56 ft)
EE671
v2.0 / Modification rights reserved
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