17
User Manual EE260 Heated Humidity and Temperature Probe for Meteorological Applications
8 Technical Data
Measurands
Relative humidity
Measuring range
0…100 % RH
Sensing element
E+E HMC01, heated
Response time t
90
at 20 °C
(68 °F)
< 15 s
Accuracy
1)
(incl. hysteresis, non-linearity and repeatability)
-15...40 °C
(5…104 °F)
for RH ≤ 90 %
± (1.3 + 0.3 % *mv) % RH
mv = measured value
-15...40 °C
(5…104 °F)
for RH > 90 %
± 2.0 % RH
-25...60 °C
(-13…140 °F)
± (1.4 + 1 % *mv) % RH
-40...-25 °C
(-40…-13 °F)
± (1.5 + 1.5 % *mv) % RH
Temperature
Measuring range
-60...60 °C
(-76...140 °F)
Temperature sensor
Pt100 1/3 DIN B
Accuracy
-60 -50
-10
-20
-30
-40
10
0
60
50
20
30
40
-60 -50
-10
-20
-30
-40
10
0
60
50
20
30
40
Analogue output
0.6
0.5
0.4
0.45
0.3
0.2
0.1
0.15
0
0.4
0.3
0.2
0.1
0
RS485 interface
Outputs
2)
Analogue
0 - 1 V / 0 - 2.5 V / 0 - 5 V / 0 - 10 V
Freely selectable and scalable
0 < I
L
< 1 mA
Digital interface
RS485 (EE260 = 1 unit load)
Protocol
Modbus RTU
Default settings
Baud rate 9
600
3)
, parity even, stop bits 1, slave ID 235
General
Supply voltage
7 - 30 V DC
Power consumption, typ.
300 mW (25 mA @ 12 V DC, heating included)
Electrical connection
M12x1, 8 poles, stainless steel 1.4404
Filter
PTFE membrane, stainless steel body
Protection class
IP67
Enclosure material
Thermoplastic elastomer, UV resistant and T stable
Electromagnetic compatibility
4)
EN 61326-1 EN 61326-2-3
Operating and
-60...60 °C
(-40...140 °F)
storage conditions
0...100 % RH (operation)
0...95 % RH non-condensing (storage)
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).
2) The EE260 simultaneously features two analogue voltage outputs and the RS485 interface.
3) Supported baud rates: 9 600, 19 200, 38 400, 57 600, 76 800 and 115 200; find more details about communication setting in the User Manual and the Modbus
Application Note at
4) Compliance with EN61000-4-3 and EN 610004-6: Electromagnetic interferencees may cause additional deviations <2 % RH.
