SPECIFICATIONS OF HYDROGEN FLUORIDE TWO WIRE 4-20 mA TRANSMITTER 

 

UNIPHOS – 572 T

 

Gas                                                     :           Hydrogen Fluoride (HF)

 

Range (ppm)                                     :           0 – 10 ppm (v/v)

 

Over range                                         :           100 ppm (v/v)

 

Resolution (ppm)                               :           0.1 ppm (v/v)

 

Response Time (T₉₀)                        :           Typically less than 90 sec

 

Detection Principle                           :           Sealed Electrochemical Sensor

 

Gas Sampling                                   :           Diffusion

 

Accuracy                                            :           Inherently ±2% (But also depends on

                                                                        accuracy of calibration gas)

 

Drift                                                     :           Less than 2% of signal per month at constant temperature & pressure

 

Operating Life of Sensor                  :           Expected life 1 year.

                                                                        Warranted for six months.

 

Operating Temperature                    :           0 to 40 °C

 

Operating Pressure                          :           Ambient ±10%

 

Output                                                 :           4 – 20 mA

 

Maximum Load resistance              :           500 W

 

Power Supply from

Controller / DCS                                :           16 V – 24 V DC

 

Dimensions                                       :           Dia. = 120 mm

                                                                        Height = 70 mm

 

Case Material                                    :           Explosion Proof Case

 

CMRI Certified                                  :           Ex ia IIC T6