SPECIFICATION - SULPHUR DIOXIDE TWO WIRE 4-20 mA TRANSMITTER

 

UNIPHOS – 540T

 

Gas                                                     :           Sulphur Dioxide (SO₂)

 

Range (ppm)                                       :           0 – 20 / 0 - 100 ppm

 

Overload                                             :           500 ppm

 

Resolution (ppm)                                :           0.1 / 1 ppm

 

Response Time (T₉₀)                         :           20 sec

 

Detection Principle                              :           Sealed Electrochemical Sensor

 

Gas Sampling                                     :           Diffusion

 

Accuracy                                             :           Inherently ± 2% (But also depends on

                                                                        accuracy  of calibration gas)

 

Operating Life of Sensor                     :           Expected life 1 – 2 year.

                                                                        Warranted for one year.

 

Operating Temperature                      :           0 to 50 °C

 

Operating Pressure                            :           Ambient ± 10%

 

Output                                                 :           4 – 20 mA

 

Power Supply from Controller                        :           15 – 24 V

 

Dimensions                                         :           Height = 70 mm

                                                                        Dia. = 120 mm

                                                                       

Case Material                                      :           Explosion Proof Case

 

CMRI Certification                               :           Intrinsically safe for

                                                                        Gas Groups I, IIA & IIB

                                                                        Temperature class – T6

                                                                        (Category ia as per IS: 5780 - 1980)