Ammonia Gas Sensor

1.1 Product Overview

Ammonia gas sensor uses professional ammonia gas concentration sensor as the utility core detection device, has the advantages of wide measuring range, high precision, good linearity, good versatility, convenient operation, convenient installation, long transmission distance, moderate price, etc.

1.2 Functional Features
This product uses high sensitivity gas detection head, stable signal, high precision, utility model has the advantages of wide measuring range, good linearity, convenient operation, convenient installation, long transmission distance, etc.

2.1 Inspection of equipment before installation
Equipment inventory:

Ammonia gas transmitter 1 piece

Shovel screws (2), expansion plugs (2)

Certificate of compliance

3.1 Current mode signal output conversion calculation
For example, the range is 0~100ppm, the output is 4~20mA, when the output signal is 12MA, calculate the current ammonia concentration value, the ammonia range is 100ppm, represented by a 16mA current signal, 100ppm/16Ma=625ppm/Ma, that is, 1mA current means the ammonia concentration change is 625ppm, the measured value is 12MA-4MA=8Ma, 8Ma*625ppm/mA=50ppm, the current ammonia concentration is 50ppm

3.2 Voltage type output signal conversion calculation
For example, the range is 0-100ppm, the output is 0-10V, when the output signal is 5V Calculate the current ammonia concentration. The ammonia range is 100 ppm, expressed as a 10 V voltage signal, 100 ppm/10 V = 10 ppm/V. That is, a 1 V voltage represents a 10 ppm change in ammonia concentration. The measured value is 5v-0 V = 5 V, 5V * 10 ppm/V = 50 ppm. The current ammonia concentration is 50 ppm.

3.3 Conversion Relationship between PPM and mg/M 3
The conversion formula is based on 25 ° C and 1 atmosphere: x PPM = (y mg/m3)(24.45)/(molecular weight) or Y mg/m3 = (x PPM)(molecular weight)/24.45

Suitable for calculating ammonia (NH3) only : 1 ppm = 0.70 mg/m ~ 31mg/m ~ 3 = 1.44 PPM.