NH3 measurement range

0-50ppm
0-100ppm
0-500ppm

NH3 resolution

0~50ppm: ±2%FS
0~100ppm: ±2%FS
0~500ppm: 20%FS   Oxygen：≥18%VOL

Accuracy

0~50ppm: 0.1ppm
0~100ppm: 1ppm
0~500ppm: 1ppm

Signal output

RS485 2-wire output (Modbus protocol)

Stability

<2% Signal / Month

Operating Voltage

10~30VDC

Power consumption

0~50ppm 0.12W, 0~100ppm 0.12W, 0~500ppm  0.9W

Working Environment

-20-+50°C , 15-90%RH

Response time

50ppm≦90S   100ppm≦90S   500ppm≤25S