RHE 21

Ex d Field Mount

An advanced function, explosion proof, field mount transmitter. With a corrosion resistant stainless steel enclosure and through-glass operation capability, the RHE21 is rated to IP67 and suitable for the most extreme of installation environments. Features such as API Standard Volume correction and Net Oil calculation are available.

  • Measure Mass Flow, Volumetric Flow, Density and Temperature
  • Outputs 2 x Analog, 2 x Frequency/Pulse, 2 x Digital Status
  • Inputs 2 x Digital, 1 x Analog
  • PC USB for RHECom, RS 485 for Modbus RTU, HART over Analog
  • Backlit Color LCD
  • ATEX/IEC Ex, CSA approved
  • Rheonik Assurance Factor®

 

CONFIGURE

Wiring diagrams

E21W-E_CH
Premium - as Standard Two P2 plus HART and analogue input

E21W-E_i1
One - 1*4/20mA (p, is), 2*DO (Pulse/Freq/Status, is), RS485 (Modbus, non-is)

E21W-E_i2
Two - 2*4/20mA (p, is), 1*DO (Pulse/Freq/Status, is), RS485 (Modbus, non-is)

E21W-E_i3
HART - as One i1 plus HART

E21W-E_iH
HART - as One i2 plus HART

E21W-E_P1
Standard One - 1*4/20mA (p), 2*DO (Pulse/Freq/Status), 1*DI, RS485 (Modbus)

E21W-E_P2
Standard Two - 2*4/20mA (p), 1*DO (Pulse/Freq/Status), 1*DI, RS485 (Modbus)

E21W-E_PH
HART - as Standard Two P2 plus HART

E21W-E_S1
Standard One - 1*4/20mA (a), 2*DO (Pulse/Freq/Status), 1*DI, RS485 (Modbus)

E21W-E_S2
Standard Two - 2*4/20mA (a), 1*DO (Pulse/Freq/Status), 1*DI, RS485 (Modbus)

E21W-E_SH
HART - as Standard Two S2 plus HART

Configuration Software