RHM 60

Coriolis Mass Flowmeter for

Medium Flow also Suited for
High Pressure Applications
The RHM 60 can measure flow rates up to 180 t/hr
with the patented Omega shape meter technology,
manufactured by Rheonik, the mass flowmeter
experts.

Applications
• Loading of boats, vessels, rail tank wagons • Typical measuring ranges from 30 to 3000 kg/min

• High temperatures and other challenging • EEx Approvals (i.e. ATEX, CSA, ...)
applications • Custody Transfer Approvals (i.e. PTB, NMI, ...)
• Highly viscous media (low pressure drop and
excellent performance at low flow conditions) Advantages
• Medium flow rates in combination with high
Features operating pressure
• As heavy duty version available (increased wall • Patented torsion swinger design assures most
thickness of measuring pipes for additional safety stable and drift free measurement
- 200 bar)
• Increased signal to noise ratio by torsion swinger
• Flow Accuracy of 0.1 %
• Longest life time and increased safety (low stress
• Repeatability better than 0.05% in welds and increased wall thickness against
• Patented torsion swinger abrasion)

• Customer adaptations possible for application • No moving parts, practically no maintenance

optimized solutions

g
General

The RHM 60 has been designed for medium flow

rates and tough application conditions. Due to the
optional heavy duty measuring pipes (up to 250
bar), this meter becomes the first choice in many
applications which have medium flow rates with
high operating presssure.

This unique design, which offers excellent

performance and reliability, has created the most
satisfied customers worlwide. Unlike other mass
flowmeter manufacturers, Rheonik uses a patented
torsion rod 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 also has
extremely good repeatability and high stability for
critical applications.
RHM 60 Specifications
Performance RHM 60

Max Flow 3000 kg/min (6610 lb/min)

Standard Models Typical ∆ P in bar (psi)
Rates/turndown ratio in (kg/min) in (lb/min) error in % of reading Rates/turndown ratio in (kg/min) in (lb/min)
nominal rate Qnax 2500 5512 0.20 1 cP 100 cP 1000 cP

0.2 * Qmax (5:1) 600 1320 0.20 0.6 (8.3) 1.2 (18.3) 3.9 (56)
0.1 * Qmax (10:1) 300 661 0.20 ~ 0 (0.6) 0.1 (1.4) 0.9 (13)
0.05 *Qmax (20:1) 150 330 0.20 ~ 0 (0.1) ~ 0.1 (0.7) 0.5 (6)
0.02 *Qmax (50:1) 60 132 0.50 ~ 0 (0) ~ 0 (0.3) 0.2 (3)
~ 0 (0) ~ 0 (0.1 ) ~ 0.1 (1)

Optimized Low Flow Models(*)/optimized to be operated between

0.0135 x Qmax and 0.27 x Qmax
0.27* Qmax (1:1) 800 1763 0.1 2 ~ 0.1 (1.0) ~ 0.2 (2.0) 1.2 (17)

0.027* Qmax (10:1) 80 176 0.15 ~ 0 (0) ~ 0 (0.2) ~ 0.1 (2)

0.0135* Qmax (20:1) 40 88 ~ 0.50(**) ~ 0 (0) ~ 0 (0.1) ~ 0.1 (1)

(*)
serial/single path version offers the same accuracy at half the flow (Qmax = 1500
kg/min)
(**)
around 0.30 - 0.70 % accuracy depending on the installation conditions

Gold Line Models/application fine tuned meters

1 * Qnom (1:1) 2500 5512 0.10 0.6 (8.3) 1.2 (18.3) 3.9 (56)

0.1 * Qnom (10:1) 500 1102 0.12 ~ 0 (0.4) ~ 0.1 (1.2) 0.8 (11)
0.05 * Qnom (20:1) 250 551 0.15 ~ 0 (0.1) ~ 0 (0.6) 0.4 (5)

Repeatability
Better ± 0.05% of rate

Density
Better than ± 0.0015 g/cc - Gold Line: Field adjustable to
better ± 0.001 g/cc

Temperature
Better ± 1°C

Standard Models Gold Line Models

For serial (single pipe/path) sanitary design Qmax is 375 kg/min (50%). Data above to standard wall thickness.
Error of reading (including zero drift) indications refer to reference conditions H2O, 18°C to 24°C (66°F to 76°F), 1 bar to 3 bar (15 psi to 45 psi).
RHM sensor do not suffer from pressure effect due to torsional oscillation and semi circle (non-deforming) measurement section.
Temperature changes of +/- 25°C around the operating point are negligible.
Pressure drop refers to Newton liquids, with parallel measuring loops and block/manifold connection.
Nominal flow refers to approx. 10 m/s (33 ft/sec) velocity in measuring loops for best performance.
Calibration to customer range, with increased accuracy, possible.
General Dimensions RHM 60

Type II (sealless welded parallel measuring loops Process Connection Face to face length L(*) Order
Code
w/o seallings [PF0])
4 in CL 150 acc. ANSI B16.5 725 mm (28.54 in) F1
4 in CL 300 acc. ANSI B16.5 725 mm (28.54 in) F2
A1 = 910 mm (35.83 in)
A2 = 950 mm (37.40 in) Standard 4 in CL 600 acc. ANSI B16.5 725 mm (28.54 in) F3
B1 = 150 mm (5.91 in) DN100/PN40 acc. DIN 2527 - C 725 mm (28.54 in) C1
B2 = 230 mm (9.06 in)
H1 = 1253 mm (49.33 in) DN100/PN100 acc. DIN 2527 - E 725 mm (28.54 in) C2
H2 = 1443 mm (56.81 in)
E = 300 mm (11.81 in) 4 in CL 900 acc. ANSI B16.5 900 mm (35.43 in) A9
W = 150 mm (5.91 in) Optional 4 in CL 1500 acc. ANSI B16.5 900 mm (35.43 in) XX
Weight DN100/PN160 acc. DIN 2527 - E 900 mm (35.43 in) D3
approx. 200 kg (440 lb)
DN100/PN250 acc. DIN 2527 - E 900 mm (35.43 in) XX
Shipping Box Special
approx. 180 cm x 120 cm x 75 cm Different sized flanges please consult factory XX
(71 in x 48 in x 30 in)
(*)
Customization possible on request.
The finish type of our ANSI flanges is RF/SF (AARH 125-250 (μinch) - Ra 3, 2 up to 6,
3 (μm)). Others available on request.
Type III (sealless welded serial measuring loops w/o Above table only shows our general process fittings.
seallings [SF0]) For further customization with regard to special fittings and face to face length
please contact your local agent.

A1 = 910 mm (35.83 in) Process Connection Face to face length L(*) Order
A2 = 950 mm (37.40 in) Code
B1 = 150 mm (5.91 in) 2 in Tri Clamp acc. DIN 32676 500 mm (19.68 in) S1
B2 = 230 mm (9.06 in) Sanitary
H1 = 1250 mm (49.21 in) Fittings (**) DN50/Sanitary acc. DIN 11851 400 mm (15.74 in) S2
H2 = 1385 mm (54.53 in)
E = 300 mm (11.81 in) 3 in CL 150 acc. ANSI B16.5 400 mm (15.75 in) A1
W = 150 mm (5.91 in) 3 in CL 300 acc. ANSI B16.5 400 mm (15.75 in) A2
V = 96 mm (3.78 in) Optional
DN80/PN40 acc. DIN 2527 - C 400 mm (15.75 in) D1
Weight
approx. 200 kg (440 lb) Different sized flanges please consult factory XX

Shipping Box (*)

Customization possible on request.
approx. 180 cm x 120 cm x 75 cm (**)
The finish type of our ANSI flanges is RF/SF (AARH 125-250 (μinch) - Ra 3, 2 up to
(71 in x 48 in x 30 in) 6, 3 (μm)). Others available on request.
Above table only shows our general process fittings.
For further customization with regard to special fittings and face to face length
please contact your local agent.
General Specifications RHM 60 Pressure Rating
• Pressured part of the meter consists of the measuring
loops and the connection part.
Approvals
• ATEX (CESI 02 ATEX 053 X): Ex II 1 G, EEx ia IIC T6-T1 The weaker of both parts decides the maximum
• CSA (220705) Class I, Div 1 and 2, Groups A, B, C and allowed operating pressure.
D;Type 3 Below is the max. operating pressure of the measuring
• Custody Transfer Approvals (PTB 1.32-97027224 and loops(*).
NMI TC 3382)
• PED according to directive 97/23/EC available (*) These values are only valid for SS 316Ti & SS 904L
• 3A Sanitary Approvals materials.
Statements for others materials on request.
Electrical Connection • Standard version:
• Junction box/aluminium coated (standard) IP 65 (Nema 100 bar @ 120°C (1450 psi @ 248°F)
4X) (Junction box in SS optional) 90 bar @ 210°C (1305 psi @ 410°F)
• Cable entry M25 x 1.5 (M20 x 1.5, ½ in and ¾ in NPT 80 bar @ 350°C (1160 psi @ 662°F) wall thickness is
optional) generally 2.9 mm (0.11 in)
• Max cable length between RHM and RHE: 100 m (330 ft) • Optional high pressure version:
200 m (660 ft) only with factory approval 200 bar @ 120°C (2900 psi @ 248°F) wall thickness is
generally 5.5 mm (0.21 in)
Housing • Other pressure version
• Stainless Steel: 1.4301/SS 304 - on request -
- other optional -
• Protection class: IP 65 (NEMA 4X)
- higher on request - Material of Wetted Parts
• NT Models from -20°C to 120°C (-4°F to 248°F)
• ET Models from -45°C to 120°C (-49°F to 248°F)
Material of Wetted Parts • ET1 Models from -200°C to 50°C (-328°F to 122°F)
• 1.4571/SS 316Ti (standard) • ET2 Models from -45°C to 210°C (-49°F to 410°C)
• 1.4539/SS 904L on request • HT Models from 0°C to 350°C (32°F to +662°F)
• Hastelloy C22 on request
• Other material on request
Order Code RHM 60
Order Code Structure
The order code of the Rheonik Sensors consists of 6 sections (see previous pages / below).
Restrictions of combinations may apply. For specials, please comment your needs in plain text / sketches.

Temperature Rating
T1 NT Models (Normal Temperature Models) from -20°C to 120°C (-4°F to 248°F)
TA ET Models (Extended Temperature Models) from -45°C to 120°C (-49°F to 248°F)
T2 ET2 Models (Extended Temperature Models) from -45°C to 210°C (-49°F to 410°F)
T3 ET1 Models (Extended Temperature Models) from -200°C to 50°C (-328°F to 122°F)
T4 HT Models (High Temperature Models) from 0°C to 350°C (32°F to 662°F)
Pressure Rating
P1 Standard pressure version (100 bar @ 120°C/1450 psi @ 248°F) - page 5
P2 High pressure version (200 bar 120°C / 2900 psi @ 248°F) - page 5
PX Other pressure version (on request) - page 4
Construction Type
PM0 Parallel Measuring Loops with removable Block/Manifold and PTFE Seals - page 3
PF0 Parallel Measuring Loops Seal Less Welded Version - page 3
SF0 Serial Measuring Loops Seal Less Welded Version/Single Path - page 5
XXX Other construction type on request
Material of Wetted Parts
M1 1.4571/SS 316Ti
M2 1.4539/SS 904L
M3 Hastelloy C22
Process Connection
XX Code available on pages 3, and 4.
Hazardous Area Approvals
NN Without Ex Approvals
AT ATEX Approvals (CESI 02 ATEX 053 X) - Ex II 1 G, EEx ia IIC T6-T1
CS CSA Approvals (220705) - Class 1, Div 1/Group A, B, C, and D; Type 3

- - - - -

Order Code Example

M#60 T1 P1 PM0 M1 D1 AT
T1: NT (Normal Temperature Models) from -20°C to +120°C (-49°F to 248°F)
P1: P1 : Standard pressure version (140 bar @ 120°C/2030 psi @ 248°F)
PFO: Parallel Measuring Loops Seal Less Welded Version
M1: 1.4571 / SS 316 Ti
A1: 4” CL 150 acc. ANSI B 16.5
AT: ATEX Approvals (CESI 02 ATEX 053 X)

M #60 - - - - - -
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