Rotamass rcct38 руководство по эксплуатации

3 Series

Coriolis Mass Flow and Density Meter

Integral Type RCCT3

Remote Type RCCF31 + RCCS3

Remote Type RCCR31 + RCCS3

IM 01R04B04-00E-E ©Copyright July 2003 (Rü) 8th edition, April 2011 (Rü)

CONTENTS

1.INTRODUCTION

1.4ATEX Documentation

This is only applicable to the countries in European Union.

CZ

DK

EST

NL

PL

SF

SLO P

H

F

BG

D

RO

S

M

GR

1. INTRODUCTION

checked, that all cavities in the flowmeter are free from such substances

flushed out and neutralised all cavities in the flowmeter

Please check applicable description

We confirm that there is no risk to man or enviroment through any residual liquid containes in this flowmeter.

Company stamp:

1. INTRODUCTION

checked, that all cavities in the flowmeter are free from such substances

flushed out and neutralised all cavities in the flowmeter

Please check applicable description

We confirm that there is no risk to man or enviroment through any residual liquid containes in this flowmeter.

Company stamp:

1. INTRODUCTION

1.6 Confirmation of accessories

When you received the instrument, please check the following accessories.

RCCF31 remote type converter

—1x ferrite cores for power line

—1x ferrite core for I/O lines

—1x band for fixing the ferrite cores on power line

—1x 2-inch pipe mounting bracket set

—1x bracket

—1x U-bracket

—2x nuts

—2x washers

—4x bolts with hexagon socket

—1x terminal wiring auxiliary tool

—1x cable gland for wiring port detector signal

—M20 cable gland (metal) (for RCCF31-xxxM…)

—NPT 1/2´´ cable gland (metal) (for RCCF31-xxxA…)

—2x cable gland for power supply and I/O signal wiring port

—M20 cable gland (plastic) (for RCCF31-xxxM…)

—NPT 1/2´´ (for RCCF31-xxxA…) cable glands for power supply and I/O signal wiring port are not attached.

Remote type detector RCCS3

—1x cable gland for wiring port detector signal

—1x M20 cable gland (for RCCS3x-Mxxxxxx)

—1x NPT 1/2´´ cable gland + 1x adapter M20 to NPT (for RCCS3x-Axxxxxx)

Integral RCCT3

—1x ferrite cores for power line

—1x ferrite core for I/O lines

—1x band for fixing the ferrite cores on power line

—1x terminal wiring auxiliary tool

—2x cable gland for power supply and I/O signal wiring port

—M20 Cable gland (plastic) (for RCCT3x-xxxMxxxxxx)

—1x NPT 1/2´´ cable gland + 1x adapter M20 to NPT (for RCCS3x-Axxxxxx)

2. Transportation and storage

2. Transportation and Storage

Transport instructions

When transporting the instrument, you must observe the following safety instructions in order to avoid lethal injury, damage to the instrument and other material damage.

The steps involved in transport may only be carried out by qualified persons taking into account the safety instructions.

•Observe the transport instructions on the packaging.

•Observe the below mentioned storage conditions.

•Use only the original packaging.

•The packaging material must be disposed of in accordance with the regulations.

•The transport braces must not be removed until installation.

•Read the chapter “Safety instructions”.

•To avoid any damages, unpack the flowmeter only at the installation site.

•Mechanical shocks are to be avoided.

WARNING

ROTAMASS is a heavy instrument. Please be careful to prevent persons from injuring when it is handled.

Storage conditions

Please note the following for storage purposes :

The detector and converter should be stored in its transport packaging.

Choose a storage place that meets the following requirements:

•Protection from rain and humidity

•Free of mechanical vibration and shocks

•Atmospheric humidity ranging from 0 to 100%. Operation above 95% for longer times is not recommended

Before storing a used flowmeter remove any fluid from the flowmeter line completely. Properties of the instrument can change when stored outdoors.

2. Transportation and storage

Blank Page

3. Product description

3. Product description

3.1 The functional principle

The ROTAMASS instrument measures the mass flow with the help of the so-called Coriolis force. This force occurs, when the medium being measured is flowing at velocity ν through a tube that is rotating around an axis perpendicular to the direction of flow at

angular velocity ϖ.

When the medium moves away from the axis of rotation it must be accelerated to an

increasingly high peripheral velocity. The force required for this is called Coriolis force, after its discoverer. The Coriolis force reduces the rotation. The opposite effect occurs, when the medium flows towards the axis of rotation. Then the Coriolis force amplifies the rotation.

The formula for the Coriolis force is as follows:

Fc = — 2 m (ϖx ν )

The entire measurement tube is deformed slightly by the Coriolis forces, in the way shown. This deformation is registered by movement sensors at points S1 and S2 .

For practical exploitation of this physical principle, it is sufficient for the tube to perform sympathetic oscillations on a small section of a circular path. This is achieved by exciting the measurement tube at point E by means of an electromagnetic exciter.

The general construction of a Coriolis mass flowmeter looks as followed:

3. Product description

3.2 The Integral Type RCCT34 to 39/IR

The following drawing shows the general construction of the integral type ROTAMASS

Power supply cable entry

I/O — line cable entry

Name plate

Flow direction arrow

Detector assembly

F31.EPS

3.3 The Remote Field-Mount Converter RCCF31

The following drawing shows the general construction of the remote field-mount converter.

Terminal box detector connection

Terminal box power and I/O

Display

I/O cable entry

Power supply cable entry

F32.EPS

3. Product description

3.4 The Remote Rack-Mount Converter RCCR31

The following drawing shows the general construction of the remote rack-mount converter.

3. Product description

3.5 The Remote Detector RCCS30 to 33

The following drawing shows the general construction of the remote detector RCCS30 to 33.

3.6 The Remote Detector RCCS30 to 33 /Tx

The following drawing shows the general construction of the remote detector RCCS30 to 33 /Tx.

see table 8

Factory insulation

Terminal box

Process connection

Heating connection

Name plate

Ventilation optional /T3

F37.EPS

Dimensions in mm

Weight (without process flanges): 12kg

3. Product description

3.7 The Remote Detector RCCS34 to 39/IR

The following drawing shows the general construction of the remote detector RCCS34 to 39/IR.

Terminal box

Option /S2 and /MT

F34.EPS

3. Product description

3.8 The Remote Detector RCCS34 to 39/IR /Tx

The following drawing shows the general construction of the remote detector RCCS34 to 39/IR /Tx.

Factory insulation

Terminal box

Ventilation optional /T3

F36.EPS

3. Product description

3.9 The Remote and Integral Type RCCx39/XR

The following drawing shows the general construction of the RCCx39/XR.

Remote Type RCCS39/XR

Terminal box

Option /S2 and /MT

Integral Type RCCT39/XR

F38.EPS

3. Product description

3.10 Measurement system and applications

ROTAMASS measures the mass flow of fluids directly.

The measurement system uses the Coriolis principle and is suitable for a wide range of continuous flow measurement applications in all branches of process technology.

ROTAMASS has two components: the detector and the converter.

The detector measures the mass flow directly and converts it into electrical signals. The converter evaluates the electrical signals and outputs the following values:

—mass flow, independent from media properties, such as density, temperature, viscosity

—fluid density

—fluid temperature

The values are displayed and output as electrical values for use by other systems.

The converter is operated by three infra-red keys and a 4- line display and is standard equipped with HARTcommunication protocol.

ROTAMASS is suitable for

—measuring liquids, liquids with solid content, multi-phase mixtures

—measuring gases (restricted by density and pressure loss)

—simultaneous measurement of mass flow, density, temperature, volume flow and cumulated mass and volume

—measuring of concentrations of liquid mixtures, solutions and suspensions

—connection to controllers and process control systems

ROTAMASS provides the following I/O-connections and can be configured for a wide

variety of different measurement applications (controlling, checking, monitoring, metering, mixing, filling).

—2 active analog outputs

—2 passive pulse outputs / status outputs

—1 status input

optional /AP:

—1 active pulse output / status output

optional /NM:

—1 pulse output / status output according EN 50227 (NAMUR)

optional /KF2 :

—1 passive analog output Ex ia

—1 passive pulse output / status output Ex ia

These capabilities make ROTAMASS ideal for the increasing demand of requirements for automation and the growing trend towards batch processes.

optional /FB see IM 01R04B05-00E-E :

—1 Foundation Fieldbus communication line

optional /FB and /KF4 see IM 01R04B05-00E-E :

—1 intrinsic safe Ex ia Foundation Fieldbus communication line

3. Product description

3.11 Name Plates

Name plate of Integral type RCCT3:

1 Model code

2Serial number

3Ambient temperature range

4 Current output range and load resistance range

5Power supply range

6 Maximum supply voltage and maximum current for passive pulseand statusoutput

7Calibration constants of detector (see also on calibration certificate)

8Number of notified body according ATEX (only for ATEX certified flowmeters)

9Number of notified body according PED (only for units with process connections more than DN25)

10Area for Exrelevant marking (see chapter 9). The CE-mark is not present for FM-approved units.

11PS = maximum permissible pressure

12TS = maximum permissible process temperature

13Material of metering tubes

14Year of manufacturing

15Customer specified tag number if option /BG was ordered

Name plate of Remote Converter RCCF31 / RCCR31:

1 Model code

2Serial number

3Year of manufacturing

4 Ambient temperature range

5Power supply range

6Current output range and load resistance range

7 Maximum supply voltage and maximum current for passive pulse output

8Maximum supply voltage and maximum current for passive status output

9Number of notified body according ATEX (only for ATEX certified flowmeters)

10Area for Exrelevant marking (see chapter 9). The CE-mark is not present for FM-approved units.

11Customer specified tag number if option /BG was ordered

3. Product description

Name plate of Remote Detector RCCS3:

1 Model code

2Serial number

3Calibration constants of detector (see also on calibration certificate)

4Number of notified body according ATEX (only for ATEX certified flowmeters)

5 Number of notified body according PED (only for units with process connections greater than DN25) 6 Area for Exrelevant marking (see chapter 9). The CE-mark is not present for FM-approved units.

7PS = maximum permissible pressure

8 TS = maximum permissible process temperature

9 Material of metering tubes

10Year of manufacturing

11Customer specified tag number if option /BG was ordered

Name plate of RCCT3 and RCCS3 with option /DS (Dual Seal approval):

In general the name plates of these units are the same as shown above. The difference is as followed:

PS is named as «Working pressure range» TS is named as «Process temperature range»

«Dual Seal» is additionally stated on the name plate

4. INSTALLATION

4. Installation

4.1 General

WARNING

This instrument must be installed by an expert engineer or skilled personal. The procedures described in this chapter are not permitted for operators.

For the installation of explosion protected instruments see chapter 9 „Explosion protected type instruments”. If the detector is not insulated, the surface of detector may be very hot according to the process temperature.

IMPORTANT

—Keep protection sheet on the flanges attached until the flowmeter is installed to piping.

—Don’t open the terminal box until the wiring procedure. Leaving the box opened can result in insulation deterioration.

—A newly installed piping-line often contains foreign matters (such as welding scrap and wood chips). Remove them by flushing the piping before installing the flowmeter. This will help to prevent not only damaging the flowmeter, but making erroneous signal generated by foreign matters.

—For RCCT3 or RCCF31 at ambient temperature above 50°C a sunshade is recommended. This is particularly important in countries with high ambient temperatures.

About the site

To stabilize the instrument, please consider the following items where to place the instrument for your long-term use.

—Ambient Temperature

Please avoid installing in a place which has a large temperature gradient and variation as possible. And if the meter is subjected to radiant heat from plant, please use heat insulation measure or please set up so that is well ventilated.

—Atmospheric conditions

Please avoid to place in a corrosive atmosphere as possible. When used in corrosive atmosphere, allow better ventilation.

—Shock and vibration

Please install in a place without shock and vibration as possible.

—Explosion-proof equipment installations

If the product is installed in hazardous areas please notice the installation hints in chapter 9.

Sequence of installation:

—Mounting of detector RCCS30 to 33 on a 2-inch pipe if option /PD was ordered (see chapter 4.2)

—Piping of the detector or integral flowmeter in the line (see chapter 4.3)

—Customer insulation of detector if necessary (see chapter 4.4)

—Mounting of converter RCCF31 on a 2-inch pipe (see chapter 4.5)

—Mounting of converter RCCR31 in a subrack (see chapter 4.6)

—Alteration of converter display of converter RCCF31 if necessary (see chapter 4.7)

—Wiring of converter (see chapter 4.8)

—After installation an autozero according chapter 5.6 must be executed. When carrying out the zeroadjustment, the measuring tube should be filled with the liquid at “no flow”. It is therefore recommended to have shut-off valves at appropriate points of the upstream (vertical installation) and downstream (horizontal installation) of the flowmeter.

4. INSTALLATION

4.2 Mounting of detector RCCS30 to 33 option /PD

The detector RCCS30 to 33 can be mounted on a 2-inch pipe (option /PD) with a bracket and U-bolt assy.

4.3 Piping

IMPORTANT

When the following notes are not observed, flow measurements may not be correct and can damage the instrument. Please make correct piping design in accordance with the present guidelines.

IMPORTANT

Please be careful to install the flowmeter not too close to motors, transformers, inverters and other power

source, induction failure may occur.

1.The upstream and downstream piping length has no influence on the functioning of the instrument.

2.Piping requirements for proper operation :

•A Coriolis mass flowmeter can be installed vertically, horizontally or at any angle from the horizontal position.

•However, the piping must be installed to ensure that the measuring tube is always filled with liquid.

•The position of installation of the detector is arbitrary. A vertical mounting is recommended however.

•Do not stress the detector mechanically. Fix the pipe not on both ends of the detector but only at one side. Let the other side run free for minimum mechanical stress on the detector.

•Please use the standard reducers if the piping’s crosssection differs at the inlet or outlet point of the flowmeter.

Use shut-off valve and bypass line

To facilitate zero adjustment and maintenance, providing a bypass line is recommended.

Supporting the Coriolis flowmeter

WARNING

—Please prevent the detector from pipeline stretching, vibration or shock.

—Please prevent the detector from direct fixing. (See figure below.)

—Please fix the pipe at first and support the detector with piping. (See figure below.)

—Please fix only one side of the detector instead of both sides so as to minimize mechanical stress to the detector.

4. INSTALLATION

Please avoid direct fixing at detector. This causes measurement errors.

IMPORTANT

When density measurement is used and the instrument is set up horizontally, you will need to set a predetermined correction factor into the converter. Please see chapter 7.7.

Check the adjacent pipe

WARNING

Eccentricity and inclination are dangerous and may cause leakage in the piping. This may cause damage to the pipe flanges.

If the dimensions are not in tolerance or you have incline or eccentric pipes, please correct before installing detectors.

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If a new pipeline is provided, it may have other foreign materials such as wood chips and welding trash. Before installing, please remove them by flushing.

Mounting of integral and remote type detector

IMPORTANT

Please prepare your flange bolts and nuts. Please provide a gasket in the piping. However, if the gasket diameter is too large or too small.

(1) Mounting direction

Please note the flow direction according the arrow on the instrument. If flow is opposite to the direction of the arrow change parameter «Flow Direction» (see chapter 7.17).

(2) Mounting Flange

Install piping by using bolts, nuts and gaskets.

Bolts, nuts and gaskets are not included. Please prepare those according the flanges.

4. INSTALLATION

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(3) Mounting Clamp

Clamp and gasket must be mounted to fit into the groove of the ferrules of the pipe, fitted to cover the taper portion of the ferrule to the Coriolis flowmeter.

The ferrules, clamps, gaskets are not included and must be provided on site.

Clamp

Gasket

Ferrule

F0306.ai

Gas flow measurement

CAUTION

A stable zero is mandatory for a good mass flow measurement. Mechanical installation stress and flow noise influence zero stability. Action has to be taken to avoid any generation of sound.

Recommendations:

•Support the weight of the detector by soft coupling (silicon or other kind of rubber support.

•Do not bend or stress the detector via the adjacent pipe. This is achieved by supporting the pipe 10D or more away from the detector.

•Pipe reduction or extension should be avoided directly before or after the meter.

•Avoid any control valves or orifices or any other sound generator near the detector.

4. INSTALLATION

4.4 Customer insulation

Customer insulation is only possible for remote detector RCCS3x with option /S2 (terminal box on distance). The upper line of the insulation must be minimum 40 mm below the terminal box.

IMPORTANT

For explosion proof types see tables «Temperature classification» in chapter 9.

4.5 Mounting of converter RCCF31 to 2-inch pipe

The field-mount converter RCCF31 can be mounted on a 2-inch pipe. Therefore use the delivered bracket and U-bolt assy.

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4. INSTALLATION

4.8Wiring

4.8.1General items

Notes concerning the wiring

When wiring, please observe the following precautions.

WARNING

—In order to prevent damage from condensation ensure isolation of the terminal box of the Coriolis flowmeter.

—Conduit wiring is recommended. Please use wiring conduit thick steel or flexible. In order to prevent rainwater from flowing or remain into the wiring pipe, please keep the watertight using a seal tape.

—Before opening the terminal box, be sure to turn off the power.

—Please fully tighten the terminal box cover.

—When removing the cover, please unlock the locking screw clockwise. (See figure below).

—After mounting the cover, please lock the cover by turning the locking screw counterclockwise. (See figure below).

—For explosion proof wiring please see chapter 9.

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4. INSTALLATION

Wiring port handling

(1) When waterproof property is unnecessary

For meters with NPT 1/2´´ threads the wiring port is sealed with a cap (not water-proof) that must be removed before wiring. For the unused wiring port, please prepare plug by the customer. For explosion proof, please refer to Chapter 9.

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(2) When waterproof property is necessary (Wiring using waterproof glands)

IMPORTANT

To prevent water or condensation from entering the converter housing, waterproof glands are recommended. Do not over-tighten the glands or damage to the cables may result. Tightness of the gland can be checked by confirming that the cable is held firmly in place.

(3) Conduit Wiring

When wiring the conduits, utilize the waterproof gland to prevent water from flowing into wiring connection port. Place the conduit pipe on an angle as shown in Figure below. Install a drain valve at the low end of the vertical pipe, and open the valve regularly.

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4. INSTALLATION

4.8.2 Ground (earth) connections

IMPORTANT

Grounding resistance of 10 Ω or less is necessary. For explosion proof type follow the domestic electrical requirements as regulated in each country.

The following table shows the grounding:

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—The location of the protective earth terminal is at the terminal box of converter as shown in figure below.

—In case of remote type, the detector is grounded at the converter. (See figure above.)

—Use insulated PVC wire for 600 V for grounding wire.

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4. INSTALLATION

4.8.3 Wiring technique

Cable connection on terminal block:

For connecting the cables to power-, I/O- and remote cable connection terminals a special tool is attached to the instrument. The terminal looks as follows:

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S1+

S1–

S2+

S2–

TP1

TP2

TP3

COM

YOKOGAWA

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Insert the auxiliary tool from the top into the terminal block.

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Tilt the tool until it opens the cable port and insert the cable. Tilt the tool back and the opening is closed and the cable is fixed. Remove the tool. Fix the wires one at a time, please make sure that is secured to the wiring terminal block.

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IMPORTANT

— Do external electrical connection in conformity with EN 61010-1 or equivalent national regulations. For hazardous area installation in Europe (ATEX) use standard EN 60079-14 as a guideline.

— Do not switch power supply on before all wiring is finished.

4. INSTALLATION

4.8.4 Assembling and connecting the Remote Cable RCCY03

Remote type converter RCCF31 / RCCR31 are used with remote type detector RCCS3. To connect these instruments use pair- / triple-twisted cable with overall shielding type Li2Y(st)+CY 3x2AWG24 + 1×3 AWG20 exclusive cable RCCY03. The maximum length is 300 m / 984 ft; 50 m/164 ft for FM-applications Cross-sectional view of remote cable RCCY03:

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The termination set contains:

— 12 terminal sleeves 0.25 mm2 light blue

— 6 terminal sleeves 0.5 mm2 orange

— 1 terminal sleeve 1.5 mm2

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For ATEX explosion proof application cable RCCY03-xLxxx /KS1 (blue color) is recommended.

NOTE

Careful assembly of the cable is indispensable for correct connection between the detector and the converter. This ensures good measuring results.

4. INSTALLATION

Termination procedure:

Cable end detector

—Remove PVC outer sheeting and outer shielding 100 mm from the end.

—Remove the clear wrap and the filler material.

—Remove the foil that is around the isolated wires.

—Clip off each drain wire close to the cable jacket.

—Slide a shrink down plastic tube (d = 3.2 mm, l = 20 mm) over each of the 3 pairs and a shrink down plastic tube (d = 4.8 mm, l = 20 mm) over the triple of wires, push it to the cable jacket and heat with hot air.

—Strip 8 mm of the cable ends.

—Fix the light blue terminal sleeves (0.25 mm2) to the wire endings of the 3 cable pairs.

—Fix the orange terminal sleeves (0.5 mm2) to the wire endings of the cable triple

—Make a radial cut into the PVC outer sheeting 25 mm from the end and cut lenghtwise.

Rotamass Remote Cable RCCY03 : Detector RCCS side

Cable end converter

—Remove PVC outer sheeting and outer shielding 100 mm from the end.

—Remove the clear wrap and the filler material.

—Remove the foil that is around the isolated wires.

—Do not clip off the drain wires !

—Twist the 4 drain wires together and fix the 1.5 mm2 terminal sleeve.

—Slide a shrink-down plastic tube (d = 3.2 mm, l =20 mm) over each of the 3 pairs and a shrink down plastic tube (d = 4.8 mm, l = 20 mm) over the triple of wires, push it to the cable jacket and heat with hot air.

—Strip 8 mm of the cable ends.

—Fix the light blue terminal sleeves (0.25 mm2) to the wire endings of the 3 cable pairs.

—Fix the orange terminal sleeves (0.5 mm2) to the wire endings of the cable triple

—Make a radial cut into the PVC outer sheeting 25 mm from the end and cut lenghtwise.

—Slide the conductor markers onto the pairs of wires on both sides of the cable, so that the pairs are numbered 1-2, 3-4, 5-6 and the triple 7-8-9. Each cable must have the same number on detector and on

converter side.

Rotamass Remote Cable RCCY03 : Converter RCCF31 side

4. INSTALLATION

Cable connection to detector RCCS3  and field-mount converter RCCF31: 1. Remove connection box cover detector and converter (see figure below).

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2.Loosen the thread of cable gland and insert the cable into the cap and the clamp part. (See figure below.)

3.Remove the PVC outer sheathing 25 mm from the end and fold back outer shield over the clamp part.

(See figure below.)

4.Tighten the cable gland.

5.Connect the numbered leads to the terminals as shown in the figure below.

6.Connect inner shields to terminal COM.

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7. Close the connection box covers.

4. INSTALLATION

Cable connection to rack-mount converter RCCR31:

1.Loose the cable clamp on terminal board

2.Remove the 25 mm section of PVC outer sheathing from the cable and fix the outer ring of the cable with the cable clamp on terminal board. (see left figure below).

3.Connect the numbered leads to the terminals as shown in the right figure below.

4.Connect inner shields to terminal COM.

4.8.5 Power supply wiring

The terminals for the power supply and for the I/O ports are in a separate terminal box as shown in the figures below.

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4. INSTALLATION

CAUTION

1.Before starting the wiring, turn off the source of the supply power and check with the tester that there is no voltage at the cable.

2. For RCCT3 / RCCF31 the protective ground conductor must be connected to the separate PE terminal in the terminal box with Crimp-on ring-type terminal in order to avoid personal shock hazard.

2.For RCCR31 the protective ground conductor must be connected to the separate PE terminal on the terminal board in order to avoid personal shock hazard.

3.An exclusive external circuit breaker must be placed near each flowmeter.

4.Check the external circuit breaker’s rating conforms to the requirements specified in the specification of this instrument.

5.Wire the power supply cable keeping the distance of 1 cm or more from other signal wires.

6.Confirm the operating voltage of the converter before operation.

7.Please lock the cover of the converter with hexagon lock screw before operation (only RCCT3 /RCCF31)

•Connect the power supply cable to the terminals inside of the converter terminal box (RCCT3  /RCCF31) or on terminal board (RCCR31).

•Confirm two ferrite core sets are attached to the flowmeter.

•Insert the cables into ferrite core before connecting to the terminals. Fix the ferrite core to the cable with clamping wire.

•Connect the power cables to the terminals according to the figure below.

•For the connection of protective ground conductor to PE terminal of RCCF31 / RCCT3 use a crimp-on ring type terminal. For RCCR31 connect the protective ground conductor to PE terminal of terminal board.

4. INSTALLATION

CAUTION

Special connections for Ex version :

The converter case must be connected to the potential equalisation facility of the

hazardous area , e.g. to the U-clamp PA terminal on the outside at the converter. Please refer to chapter 9 “Explosion Protected Type Instruments”.

Power supply cable

Cable : Use cables acc. to VDE 0250, VDE 0281 or equivalents.

Outer diameter : DIN and NPT cable gland: 6.5 to 10.5 mm in diameter

24V DC connections

For the DC power supply type, connect a 24 V DC power supply, following the precautions below.

1. Connecting Power Supply

Please refer to the Figure in right. AC power supplies

can not be connected. Confirm the polarity of DC power supply.

F49.EPS

2. Supply voltage rating

The specification for the supply voltage is 20.5 – 28.8 V DC. But because the input voltage of the converter drops due to cable resistance, it should be used within the following range.

3. Ground connection

Connect ground as shown on page 4-8 due to EMC protection.

Allowed cable length m (ft)

4. INSTALLATION

4.8.6 Connecting to external instruments

•Use cables with cross section 0.08 to 0.5 mm²

•Connect the cables from the external instruments to the terminals inside of the converter terminal box (RCCT3 / RCCF31 or on terminal board (RCCR31).

•Confirm two ferrite core sets are attached to the flowmeter.

•Insert the cable into ferrite core before connecting to the terminals. Fix the ferrite core (see figure on page 4-16)

•Connect the cables to the terminals according to the figure below.

I/O-Terminal Overview :

1.Analog signal output (Iout 1 and Iout 2) ROTAMASS has 2 analog outputs, 4 to 20 mA DC.

Load resistance 20600 Ω (/KF2 has only one analog output, which is intrinsic safe. See chapter 4.8.8).

4. INSTALLATION

4.Pulse Output active (option /AP)

Pulse output 1 (Pout) can be ordered as active output. Not possible with intrinsic safe outputs option /KF2.

5.Status Output active (option /AP)

Status output 1 (Pout) can be ordered as active output. Not possible with intrinsic safe outputs option /KF2.

+

ROTAMASS

12V, 6mA max., Load > 10kΩ

Pout +

Load

Pout —

ROTAMASS +

12V, 6mA max. Pout +

Magnetic valve

Pout —

F421.EPS

4. INSTALLATION

6.Pulse / Status Output according EN 60947-5-6 (NAMUR) (option /NM) Pulse output 1 (Pout) can be ordered as NAMUR output.

F426.EPS

7.Status input (Sin)

Status input is designed for use with voltage-free (“dry”) contact (activate source current to detect the contact state). Be careful not to connect to any signal source carrying any voltage. Applying voltage may damage the input circuit.

Close: 200Ω max

Open: 100kΩ min

4. INSTALLATION

4.8.7 Connecting HARTCommunication

HART communication is available on analog output 1 and the HART-communicator is connected via load resistance (230 … 600 Ω) as shown on the figure below.

Receiving instrument

ROTAMASS

4.8.8 Flowmeters with intrinsic safe outputs

ROTAMASS with option /KF2 has one intrinsic safe current output and one intrinsic safe pulse / status output. The Ex-data of this output can be found in chapter 9.1.

The second current output, the second pulse / status output and the status input are not available. The concerning parameters in the menu are not visible.

Current output : The intrinsic safe current output is passive and an external power supply with shunt-diode type barrier or isolation type barrier should be connected.

Example of installation :