TECHNICAL DATA
Air Velocity
Measurement range
0...5 m/s
(0...1000 ft/min)
0...10 m/s
(0...2000 ft/min)
0...15 m/s
(0...3000 ft/min)
0...20 m/s
(0...4000 ft/min)
Accuracy
1)
±(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 /
70 ft/min
+ 5 % of mv):
1... 15 m/s
(200...3000 ft/min)
mv = measured value
±(0.4 m/s /
80 ft/min
+ 6 % of mv):
1... 20 m/s
(200...4000 ft/min)
Analogue output signal
0 - 1 / 5 / 10 V
2)
,
max. 1 mA
Digital interface
RS485 with Modbus RTU protocol (EE671 = 1 unit load)
Response time
τ
90
, typ.
4 s
General
Supply voltage (Class III)
10 - 29 V DC
Current consumption, max.
50 mA at 20 m/s
(4000 ft/min)
Connection
Cable
0.5 m
(1.6 ft)
/ 2 m
(6.6 ft)
cable, PVC, 5x0.25 mm² (AWG 23) with ferrules
Plug
M12 connector, 5-pin
Electromagnetic compatibility
3)
EN 61326-1 EN 61326-2-3 Industrial Enviroment
FCC Part15 Class A ICES-003 Class A
Material / protection rating
Polycarbonate / IP50 (probe head); IP54 (enclosure)
Temperature range
Operation
-20...60 °C
(-4...140 °F)
Storage
-30...60 °C
(-22...140 °F)
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).
SCOPE OF SUPPLY
• EE671 sensor according to ordering guide
• Protection cap
• Mounting flange
• Quick guide
MODBUS RTU
The EE671 air flow probe represents 1 unit load in a Modbus RTU network. For Modbus protocol settings see Modbus Application
Note AN0103 (www.epluse.com/ee671).
Factory settings: Modbus address 238, Baud rate 9 600, even parity, 1 stop bit. The Modbus address can be customised in the
register 0x00 (value margin 1 - 247 permitted). Selectable Baud rates are 9 600, 19 200 and 38 400, parity may be even, odd or none.
Device address, Baud rate and parity can be set via:
1. PCS10 Product Configuration Software and the appropriate configuration cable HA011018.
The PCS10 can be downloaded free of charge from
.
2. Modbus protocol in the register 60001 (0x00) and 60002 (0x01).
Measured value
Unit
Scaling
Type
Register [DEC]
Protocol address [HEX]
Read registers (function code 0x03 / 0x04)
Serial number
ASCII
0001
0x00
Software version
Binary
0009
0x08
Sensor name
ASCII
0010
0x09
Temperature
°C
32 bit float
1003
0026
0x3EA
0x19
Temperature
°F
32 bit float
1005
0028
0x3EC
0x1B
Temperature
K
32 bit float
1009
0030
0x3F0
0x1D
Air velocity
m/s
32 bit float
1041
0032
0x410
0x1F
Air velocity
ft/min
32 bit float
1043
0034
0x412
0x21
Temperature
°C
x 100
x 100
16 bit integer
4002
0046
0xFA1
0x2D
Temperature
°F
x 50
x 100
16 bit integer
4003
0047
0xFA2
0x2E
Temperature
K
x 50
x 100
16 bit integer
4005
0048
0xFA4
0x2F
Air velocity
m/s
x 100
x 100
16 bit integer
4021
0049
0xFB4
0x30
Air velocity
ft/min x 1
x 10
16 bit integer
4022
0050
0xFB5
0x31
Write registers (function code 0x06)
Modbus address
0001
0x00
Communication parameters
0002
0x01
1)
2)
3)
1) Please observe correct scaling for used registers
2) Measured values available in both registers
3) Registers in right column not intended for new design (0026...0050 / 0x19...0x31)
2)
3)
}
left column E+E standard registers, right column legacy registers
2
2)
3)