Rheonik RHE12 – Enhanced Rail Mount


The RHE12 explosion proof mass flow transmitter features standard HART communications and magnetic behind-glass controls.  The RHE12 is supplied with a standard post mounting kit and a choice of integrated sensor cables.

MEASUREMENTS Mass Flow Temperature
OUTPUTS 1 Analog 1 Frequency / Pulse HART


  • Field mounting
  • Compact, pressure safe housing
  • ATEX and CSA approvals for installation in hazardous areas
  • 24 VDC power supply
  • Configurable analog output for mass flow or temperature
  • HART communications interface transmits all PV’s and totalizer
  • Configurable pulse output
  • Metric and English units
  • Protection class IP66 / Type 7X
  • Power consumption approx. 7W
  • Simple magnetic key operation
  • Dedicated SensCom software package for configuration via laptop


  • General process flows
  • Liquid and gas applications
  • Feed stocks and transfers Benefits
  • Low cost mass flow only meter
  • Works with all sizes of Rheonik RHM flow sensors
  • Remote electronics provides installation flexibility

RHE12 General Specifications

Epoxy coated aluminium, explosion proof. Adaptable for standard 2″ pipe or wall/panel/frame mount
Enclosure Rating: IP 66 / Type 7X
Ambient Temperature: -20°C to +55°C (-4°F to +131°F)
Dimensions: 200 x 114 mm (7.9 x 4.5 in) plus cable entry clearance and mounting bracket footprint
Display: LCD, 16 characters, 2 lines
Through-glass via 2 magnetic sensors (two magnets are included with the transmitter for
operation) for all menu navigation and settings
Sensor Connection:
Integral sensor cable with 2m or 10m length through approved cable gland (ATEX) or conduit seal fitting (CSA). Optional terminal box for separate custom length cable connection available
Analog Outputs: 1 active 4-20 mA output, configurable for mass flow or temperature
Pulse Output:
1 passive opto-isolated open collector type, Fmax= 10 kHz,Umax= 24 V, Imax= 10 mA
(requires external power supply and site installed current limiting/pull up resistors)
Power Supply: 24 VDC +/- 10%
Digital Data Communications: HART over analog output
Cable Entries: 2 x ¾” NPT
ATEX Approval:
Transmitter: Ex II 2 (1) G Ex db [ia Ga] IIC T6
Sensor: Ex II 1 G, EEx ia IIC T6-T1
CSA Approval:
Transmitter: Class I, Div. 1, Gr. BCD
Sensor: Class I, Div. 1, Gr. ABCD
Weight: 3 kg (6.6 lb)

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