12
User Manual EE072 Humidity and Temperature Probe with Modbus RTU
7 Technical Data
Measurands
Relative humidity
Accuracy
1)
-15…40 °C
(5…104 °F)
± (1.3 + 0.3 % *mv) %RH for RH ≤90 %
± 2.3 %
for RH >90 %
-40…80 °C
(-40…176 °F)
± (1.5 + 1.5 % *mv) %RH
mv = measured value
Response time
< 15 s with stainless steel grid filter at 20 °C
(68 °F)
/ t
90
Resolution
0.01 %RH
Temperature
Accuracy
1)
0.48
0.6
0.4
0.3
0.2
0.1
standard
high
Resolution
0.01 °C
(0.018 °F)
General
Sensing element
E+E HCT01 with E+E proprietary coating
Measuring interval
1 s
Digital interface
RS485 (EE072 = 1 unit load)
Protocol
Modbus RTU
Default settings
Baud rate 9600
2)
, parity even, 1 stop bit, slave ID 234
Supply
10…28 V DC
Current consumption, typ.
3 mA, without termination resistor
Enclosure
Polycarbonate RAL 7035 / Stainless steel 1.4404 / AISI 316
Protection class
3)
IP65
Electrical connection
M12x1, 4 poles
Electromagnetic compatibility
EN 61326-1:2013 EN 61326-2-3:2013
Industrial Environment
Working range
-40…80 °C
(-40... 176 °F)
/ 0…100 % RH
Storage conditions
-40…80 °C
(-40... 176 °F)
/ 0…90 % RH, non-condensing
Configuration and adjustment
EE-PCS (Product Configuration Software, free download) and
Modbus configuration adapater
1) Traceable to intern. standards, administrated by NIST, PTB, BEV,... 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). The accuracy is defined at a 12 VDC supply, baud rate 9600, without terminati
-
on resistor, a polling interval of >= 1 second an an airflow > 0.2 ms.
2) Supported baud rates 9600, 19200, 38400, 57600, 76800 and 115200; more details about communication setting: See User Guide and Mod
-
bus Application Note at
www.epluse.com/ee072
.
3) The IP65 connection rating applies when plugged into an appropiate M12x1 female connector.