Gravity Mass Flow meter Rheonik RHM-12

Rheonik Coriolis Mass Flow Meter

Gravity Mass Flow meter Rheonik RHM-12 is an economical meter which has been in production for over 15 years. This meter has been optimized for applications which require extreme stability and fast response. As with all other Rheonik meters, this model is based on the patented Omega tube design with increased signal to noise ratio.

Gravity Mass Flow meter Rheonik RHM-12 can measure flow rates up to 10 kg/min (21 lb/min) with extremely fast response times and excellent repeatability. A true solution, particulary for application such as batching where fast response times are needed, manufactured by Rheonik, the mass flowmeter experts


This unique design, which offers excellent performance and reliability, has created the most satisfied customers worldwide. Unlike other mass flowmeters, Rheonik uses a patented torsion swinger with the Omega shape and support bars which results in high accuracy measurement, which is independent of pressure, even at very low flow velocities. The meter has also extremely good repeatability and  high stability for critical applications.

APPLICATIONS

• Suitable for virtually any mass flow
• General Flow Control 
• Additing Dosing 
• Mixing 
• Batching 
• Package and Container Filling 

FEATURES

• The outstanding features include: 
• Standart pressure rating upto 790 bar (11458 psi) 
• Temperature rating from -196 to 350 Deg C (-320 to 662 Deg F) 
• Mass flow uncertainly down to 0.12% 
• Density uncertainly down to 0.5% 
• Repeatability better than 0.05% 
• Typical measuring ranges between 1 and 100 kg/min 
• Accurately measure low flow rate down to 750 g/min 
• Unique robust torsiondriven oscillation system 
• Precess Connection customization available 
• Minimum pipe footprint versions available 
• Approved for use in hazarddous areas 
• Satinless steel case 
• Removable connection manifold version available for easy and efficient maintenance 
• Remote and compact transmitter versions vailable 

ADVANTAGES

• Torsion oscillator design assures a stable and drift free measurement with excellent signal to noise rations.
• Resilient to external noise and vibration
• Insensitive to pipe presssure changes
• Robust tube wall thickness provides increased operational safety in abrasive applications
• Corrosion resistant
• Long sensor life guaranteed due to low mechanical stresses in the meter mechanism
• No moving parts to wear or fail

Order Code Rheonik Coriolis Mass flow meter RHM12

Coriolis Mass Flow Transmitter

Inside the measuring sensor, there are precision tubes that are energized by an electromagnetic drive system, which itself is fed by the transmitter, to vibrate at their natural frequencies. When a liquid or gas flows through the vibrating tubes, it is subjected to additional deflection due to the degree of inertia that is generated. This deflection is recorded electronically by two velocity sensors and a high-precision electronic time delta. This measured quantity is proportional to the mass flow rate.

A further conversion into physical units is done in a purely digital manner using a signal processor in the transmitter. At the same time, all of the appliance’s functions are constantly monitored. Should any disruptions occur, all of the errors that have occurred are immediately reported in the display.

This significantly reduces the costs of spare parts for the installed flow sensor/transmitter. During the factory calibration, the mass flow sensor can be calibrated independently of the transmitter. All sensor-specific calibration data can be programmed using magnetic switches located on the front panel. To achieve this, the instrument does not need to be opened. All of the relevant data is buffered in a non-volatile semiconductor device (EEPROM).

The transmitter has a 4 to 20 mA analogue output with programmable span, which is proportional either to the measured mass flow rate or the temperature; it also has an impulse output that supplies mass-proportional impulses. All of the outputs and measuring functions can be verified at any time by the user by using the diagnostic mode in the appliance. The maintenance or new calibration intervals can be monitored via a run-time counter. For service or repair purposes, the transmitter and flow sensor can be replaced independently of each other.

The RHEONIK mass flow meter consists of one of the RHM series flow sensors and one RHE series transmitter. The remote unit RHE 07/08 is for installation in a safe non-Ex area and is connected to the sensor via a single multi-conductor cable.

Please note, that the types RHE 07/08 and all sensor articles are available in non Ex-versions (without Exnameplate). The RHE 11 (Ex d) may be installed and operated in hazardous Ex-areas (Zone 1 or 2). Ex-series sensors RHM (with Ex-Label) are, when connected with an Ex- Transmitter, made for installation inside hazardous areas (Ex-zone 0, 1 or 2). The transmitter RHE includes seven printed boards which can be replaced during servicing. The remote electronic unit consists of two bent measuring loops in the shape of an omega.

Kind of  Rheonik Coriolis Mass Flow Transmitter

1. RHE 07 Coriolis Flow Transmitter

The RHE07 is designed to sit in a standard 19" Eurocard style rack. The transmitter has two Eurocard connectors on the back to allow the unit to be plugged into an integrated rack system directly. For standalone applications, the RHE07 is easily adapted to panel mount and has a screw terminal adapter accessory to allow field wiring to be connected directly to the rear of the unit. The RHE07 transmitter can be used with an RHM sensor in a hazardous area (RHE07 in safe area). CSA certified versions of the RHE07 must be mounted in a safe area.

The RHE07c is a modified version of the RHE07 that provides a second pulse output 90 degrees out of phase with the standard output and the facility to physically lock and apply a seal to the unit so that the configuration of the instrument cannot be tampered with.The RHE07c transmitter can be used with an RHM sensor in a hazardous area (RHE07c in safe area).

2. RHE 08 Coriolis Flow Transmitter

The RHE08 is designed to sit in a standard 19" Eurocard style rack. The transmitter has two Eurocard connectors on the back to allow the unit to be plugged into an integrated rack system directly. For standalone applications, the RHE07 is easily adapted to panel mount and has a screw terminal adapter accessory to allow field wiring to be connected directly to the rear of the unit. The RHE08 transmitter can be used with an RHM sensor in a hazardous area (RHE07 in safe area). CSA certified versions of the RHE07 must be mounted in a safe area.

The RHE08 is a modified version of the RHE08 that provides a second pulse output 90 degrees out of phase with the standard output and the facility to physically lock and apply a seal to the unit so that the configuration of the instrument cannot be tampered with.The RHE07c transmitter can be used with an RHM sensor in a hazardous area (RHE07c in safe area).

3. RHE 11 Coriolis Flow Transmitter

The RHE11 multifunction transmitter has a corrosion resistant explosionproof enclosure perfect for demanding applications in extreme environments.  The unit features behind glass controls and an intuitive operator menu.The

RHE 11 (Ex d) may be installed and operated in hazardous Ex-areas (Zone 1 or 2). Ex-series sensors RHM (with Ex-Label) are, when connected with an Ex- Transmitter, made for installation inside hazardous areas (Ex-zone 0, 1 or 2). The transmitter RHE includes seven printed boards which can be replaced during servicing. The remote electronic unit consists of two bent measuring loops in the shape of an omega.

4. RHE 12 Coriolis Flow Transmitter

The RHE12 explosionproof 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.

The RHE 12 transmitter is equipped with a 24 VDC mains supply. For trouble-free operation, the power supply must maintain the specified nominal voltage of +- 10%. When connecting the transmitters, always ensure that the power supply is switched off. The earthing for the power supply should be connected using the relevant RHE earthing.

4. RHE 14 Coriolis Flow Transmitter

The RHE14 is a low cost mass flow transmitter ideal for OEM and embedded system use. The RHE14 is DIN rail mount and configured through a native RS232 data port. The RHE14 can be used with all RHM Coriolis Sensors.

RHE14 transmitters can be used with all sizes of RHM flow sensor.  The  RHE14  is  compact  and  ideal  for  OEM applications. I/O includes 4-20mA, pulse, flow direction and RS232 serial data. Programming and configuration by SensCom™ software. 

6. RHE15 Coriolis Flow Transmitter

The RHE15 is an expansion module providing connectivity for an RHE14 transmitter to a PROFIBUS-DP system. The unit can optionally act as a gateway for other local instruments without PROFIBUS functionality.

Optionally includes inputs for 1 pulse and 3 analog signals from any other instrument(s)without PROFIBUS functionality. Signals are retransmitted digitally on PROFIBUS

Function : Conversion of three Analog and one Pulse Input from any Transmitter to PROFIBUS

7. RHE16 Coriolis Flow Transmitter

The RHE16 is a state-of-the-art multifunction DIN rail mount Coriolis transmitter With full MODBUS capability, the RHE16 provides flow, density and temperature measurement to any supervisory control system. The RHE16 can be supplied preinstalled in a local electrical box mounted on any RHM flow sensor. Neat and convenient, the unit has a tiny footprint and represents installation savings. For high and low temperature applications, the electrical box is set off of the sensor body to protect the transmitter from temperature extremes and to allow for the sensor to be fully insulated. Compact mount versions can be installed in ATEX Zone 2 areas. See RHM sensor data sheets for full dimensions and ordering details.

8. RHE 21 Coriolis Flow Transmitter

9. RHE 26 Coriolis Flow Transmitter

The RHE26 and RHE27 transmitter models are designed to be installed through a control panel or enclosure door so that the terminals on the rear are protected from water and moisture ingress. The front panels of the RHE26 and RHE27 provide a protection class of IP54. They are not suitable for installation in wash down or other “wet” areas. For RHE26 and RHE27 units requiring 12 to 24V DC power, the use of a properly grounded (PELV) supply is highly recommended. The use of shielded cables for all I/O signals is recommended to prevent interference from high level EMI.

10. RHE 27 Coriolis Flow Transmitter

The RHE26 and RHE27 transmitter models are designed to be installed through a control panel or enclosure door so that the terminals on the rear are protected from water and moisture ingress. The front panels of the RHE26 and RHE27 provide a protection class of IP54. They are not suitable for installation in wash down or other “wet” areas. For RHE26 and RHE27 units requiring 12 to 24V DC power, the use of a properly grounded (PELV) supply is highly recommended. The use of shielded cables for all I/O signals is recommended to prevent interference from high level EMI.

11. RHE 28 Coriolis Flow Transmitter