Rheonik RHM100 Coriolis Mass Flow Meter Sensor 12000 kg/min

Large-bore Coriolis metering for terminals and transfer

The Rheonik RHM100 is Rheonik’s high flow Coriolis sensor for terminal transfer and viscous fluids. A typical range of 150 to 12000 kg/min is equivalent to roughly 9 to 720 tonnes per hour (derived), which makes it a candidate for ship, barge, rail car and truck loading where direct mass metering replaces tank gauging. Operation down to -196 C also covers cold hydrocarbons.

The sensor is paired with a Rheonik RHE transmitter, either integral or remote.

Highlights

• Pressure ratings up to 237 bar (3437 psi) and temperatures from -196 to +210 C.
• Mass flow uncertainty down to 0.1%; repeatability down to 0.05%.
• Measurement updates of 4 kHz with RHE40 series transmitters.
• Compact body with minimal pipeline footprint and AnyPipeFit custom connections.

Technical specification

Pressure by tube material

At 50 C the listed limits are 73 bar for M0 SS 316Ti, 94 bar for H0 Alloy C22 and 237 bar for D1 Super Duplex. At 350 C the M0 tube is rated 48 bar (derived from 696 psi). The lowest-rated of tube, block and process connection governs, so flange class matters on the largest sizes.

Ordering notes

Flange options include ANSI 8 in 150#, 300#, 600#, ANSI 10 in 150#, 300# and 600#, 8 in 900# and 1500# RTJ and DIN DN200 PN16, PN40 and PN100, all at 900 mm face to face. Specify the temperature range, tube material, calibration (A, B, G or 1) and terminal box. The datasheet notes that the tolerance on face-to-face length is plus or minus 2 mm.

Order code and housing options

Temperature range codes for this sensor are N1 (-20 to +120 C), NA (-50 to +120 C), EM (-20 to +160 C), E2 (-50 to +210 C) and E3 (-196 to +50 C); the order code table does not list a 350 C range, although the housing note mentions H4. Ask for confirmation if you need that range. Housing choices include a standard stainless steel body, a special SS 316 body, and versions with a rupture disc with or without a G 3/4 in male drain connection. Because E3 spans -196 to +50 C, hot service needs a different range code; the datasheet recommends insulation for the E2, E3 and H4 ranges. The datasheet also lists PED compliance, a low-flow calibration at 0.10% over four points and material certificates to EN 10204 3.1.

Installation planning

At this size the sensor is a lifting and supporting task; plan crane access and pipe supports before delivery, using the 750 kg gross weight in the datasheet as a basis. Because pressure drop rises with viscosity, verify the pump head for viscous crude or fuel oil duty.

Turn-down in practice

The calibration codes A, B and G quote 0.20%, 0.15% and 0.10% uncertainty. Using the datasheet rule that uncertainty equals the calibration figure only when flow is at least the zero point stability divided by the uncertainty, a standard sensor (1.5 kg/min) holds 0.20% above about 750 kg/min, and a premium sensor (1.35 kg/min) holds 0.10% above about 1350 kg/min (both derived). Below those flows the zero point term dominates, so choose the premium option if long periods of low-rate loading are expected.

Mounting and electrical options

The JM coated aluminum box measures 125 x 80 x 57 mm and the SM stainless steel box 100 x 100 x 61 mm, both with an M20 x 1.5 cable entry. The datasheet shows the sensor housing at IP66 for the standard temperature ranges, and a lower IP65 rating applies for the extended ranges. Maximum cable length to a remote RHE transmitter is 100 m (330 ft). The shipping crate follows ISPM 15, which matters for customs and handling on export routes.

Use in Oman and the GCC

Port terminals, export loading jetties, refinery transfer lines and tank farms use large Coriolis meters where custody or allocation accuracy is required. Confirm the applicable approval for your use before ordering.

Selection and installation notes

A Coriolis sensor is sized from the flow range and the pressure drop, so confirm the fluid, density, viscosity, operating pressure and temperature before ordering. Mount the sensor on a rigid support without stressing the pipe, keep it full of liquid, avoid mounting where vibration from pumps reaches it and follow the orientation and drain advice in the manual. Zero the meter with no flow once the line is full, record the settings, and choose the electronics and output type that match the control system.

Information needed for a quotation

Send the full model code, the quantity, the delivery location in Oman or the GCC, the intended use and any accessories needed, so that the complete package can be quoted together.

Documents and supply information

The manufacturer data sheet is attached to this page and should be read together with the project specification and the site risk assessment before a purchase is confirmed. Ratings, standards and dimensions are quoted as printed on that sheet. Lead time, stock position and certificates available with the shipment are confirmed in the quotation, and we supply to Oman and the wider GCC region for industrial, utility and building services projects.

Related items and quotation

See flow and process measurement for related equipment. Send the product, flow rate, line size and pressure class and we will prepare a quotation; confirm the full order code before ordering.