Appendix C:
Sensor Connection Guide
C.1 Analog 4 to 20 mA Sensor Interface P/N ANA-420mA
4-20mA signal is a common output for many industrial transmitters, for variables such as:
temperature, flow, pressure, distance, humidity, voltage, current and more. The Datalog X-PRO 4
to 20 mA interface converts this analog signal to digital and sends it to the Internet for subsequent
analysis.
C.1.1 D.C. Electrical Characteristics
PARAMETER
Ratings
Supply Voltage from Datalog X-PRO
3.3 V DC
Input Current Range
0 – 22mA
Maximum Input voltage of a channel
1.1 VDC
C.1.2 Specifications
PARAMETER
Operational Range
Temperature
41°F – 104°F (5°C to 40 °C)
Relative humidity
25-75 %
Accuracy
0.1 mA at reference conditions
Resolution
0.01 mA
Digital Conversion Range
0 to 2200
Output: 0 = 0 mA / Output: 2200 = 22 mA
Exceeding the ranges defined for any Interface channel could cause damage or
unpredictable operation, which could result in death or severe personal injury
and/or property damage. To avoid any risk, Datalog X-PRO manufacturer should
be reached to receive further assistance on how to properly connect peripherals.
Remember that Contact Information is provided at the beginning of this
document.
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