SPECIFICATIONS - ARSINE 4 – 20 mA TWO-WIRE TRANSMITTER

 

UNIPHOS – 555 T

 

Gas                                         :           Arsine (AsH₃)

 

Range (ppm)                         :           0 – 5 ppm (V/V)

 

Resolution (ppm)                   :           0.1 ppm (V/V)

 

Response Time (T₉₀)            :           Typically less than 60 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               :           15 – 24 V DC

Controller / DCS                               

 

Dimensions                           :           Dia. = 120 mm

                                                                        Height = 70 mm

 

Case Material                        :           Explosion Proof Case

 

CMRI Certification                :           Intrinsically safe for

                                                            Gas Groups I, IIA, IIB

                                                            Temperature class – T4

                                                            (Category ia as per IS: 5780 - 1980)