analyzersFlue gas flowmeter IS-14.M
Purpose
Flue gas flowmeter IS-14.M is meant for continuous measurement of the flow rate and discharge of gases emitted by fuel-burning plants operated on any type of fuel.
Advantages
- Contact-free measurements;
- Straight sections of the gas duct before and after installation are not necessary;
- Operation in hot smoke gases up to 1000 °С (special order)
- Operation in severely dusted environments.
Operating principle
The gas flow rate is measured by the method of infrared cross-correlation.
The principle of action is based on an innovative approach to measuring the time of passing a known distance by stable fluctuations (non-homogeneities) of the gas flow temperatures.
 |
1,2 – measuring sensors 3 – air pump module 4 – measuring module 5 – Installation frame (optional) 6 – Gas pipe / gas duct |
Metrological and technical characteristics
|
Characteristic |
Value |
|
Range of measured gas flow rate, m/s |
from 0.2 to 50 |
|
Limits of permissible relative error of measuring the gas flow rate under operating conditions δv1, % in the range from 0.2 through 5m/s under operating conditions, |
±(0,2/V)*100 |
|
Limits of permissible relative error of measuring the gas flow rate in the range of over 5 to 50 m/s, % |
± 3 |
|
Range of measurements of volumetric gas discharge under operating conditions, m3/h |
from 150 to 50*106 |
|
Direct current output, mA (to be chosen by the user |
0 - 20 / 4 – 20 / 0 – 5 |
|
Output, bit-serial interface |
RS485 |
|
Alternating current voltage, V |
187 – 230 |
|
Power input, W, max |
500 |
|
Power consumed by IS-14.M, (including power spent on air pump and on heating outdoor box), max |
1500 |
|
Weight, kg, max Measuring sensor Measuring module Thermocouple THA |
4 20 2 |
|
Dimensions (diameter/length, height, width), mm, max Measuring sensor Measurement module Thermocouple THA |
120;150;120 380; 600;210 60; 300; 60 |
|
Pipe diameter for installing the instrument, m |
years |
|
Availability of straight portions of the pipe before and after measurement |
Not required |
|
Range of operating ambient temperature, оС |
from minus о60 to plus о50* |
|
Ambient temperature, оС |
from 70 to 800, optionally up to 1000 |
|
Relative ambient humidity for measurement module, without condensation, %, max |
99 |
|
Average service life, years |
10 |
|
Average time between failures, h |
65000 |
* Ensured by placing the instrument in a heated box