Precision Industrial IoT Converter
4-20mA Node
Interface Analog Sensors with LoRaWAN Networks
Converts standard industrial 4-20mA current signals to digital values for long-range wireless transmission, enabling analog sensors to become part of modern IoT infrastructure.
Technical Specifications
Comprehensive hardware and software specifications for system integration and performance benchmarking.
1. Analog Input Specifications
Input Channels
Single analog input
Input Type
4-20mA current loop
ADC Resolution
12-bit
ADC Reference Voltage
1.2V internal reference
Sampling Rate
150 kHz (with clock division of 20)
Sampling Method
100-sample averaging for noise reduction
2. Current Measurement
Measurement Range
0-25 mA (typical 4-20mA operation)
Resolution
~0.005 mA per LSB (after calibration)
Accuracy
±0.5% of reading (after calibration)
3. Data Acquisition
Oversampling
100 samples per reading
Digital Filtering
Averaging algorithm for noise reduction
Data Format
Integer hundredths of mA (e.g., 1250 = 12.50 mA)
4. Power Management
Sleep Current
~2μA (check with H/W team)
Operating Current
(check with H/W team) during measurement
External Power
9-36V DC (check with H/W team)
Battery Life
(check with H/W team)
5. Protections
Reverse Polarity
Protected up to -40V (check with h/w)
Overvoltage
±40V DC protection (check with h/w)
Short Circuit
Current limited on inputs (check with h/w)
ESD Protection
±15kV air, ±8kV contact (check with h/w)
6. Physical Specifications
Dimensions
(check with H/W team)
Enclosure
IP67 rated, weatherproof
Mounting
DIN rail or wall mount (check with H/W team)
Operating Temperature
-40°C to +50°C (check with H/W team)
Humidity
0-95% RH non-condensing
Weight
if required (check with H/W team)
7. Radio Specifications
Frequency Bands
IN865 MHz (865.0625MHz, 865.4025MHz, 865.9850MHz)
Bandwidth
125 kHz
Modulation
LoRa
Transmit Power
+30 dBm (1W)
Antenna
External 2dBi, SMA connector
Range
Up to 3 km line-of-sight (check with Sanchit)