Before use, read this manual thoroughly and
familiarize yourself fully with the features,
operations and handling of Rotameter RAKD to
have the instrument deliver its full capabilities and
to ensure its efficient and correct use.
Notices Regarding This Manual
• This manual should be passed to the end user.
• The contents of this manual are subject to
change without prior notice.
• All rights reserved. No part of this document may
be reproduced or transmitted in any form or by
any means without the written permission of
Rota Yokogawa (hereinafter simply referred to as
Yokogawa).
• This manual neither does warrant the
marketability of this instrument nor it does
warrant that the instrument will suit a particular
purpose of the user.
• Every effort has been made to ensure accuracy
in the contents of this manual. However, should
any questions arise or errors come to your
attention, please contact your nearest Yokogawa
sales office that appears on the back of this
manual or the sales representative from which
you purchased the product.
• This manual is not intended for models with
custom specications.
• Revisions may not always be made in this
manual in conjunction with changes in
specications, constructions and/or components
if such changes are not deemed to interfere with
the instrument’s functionality or perfor-mance.
Notices Regarding Safety and Modication
• For the protection and safety of personnel, the
instrument and the system comprising the
instrument, be sure to follow the instructions on
safety described in this manual when handling
the product. If you handle the instrument in a
manner contrary to these instructions, Yokogawa
does not guarantee safety.
• If this instrument is used in a manner not
specied in this manual, the protection provided
by this instrument may be impaired.
• As for explosion proof model, if you yourself
repair or modify the instrument and then fail to
return it to its original form, the explosion protected
construction of the instrument will be
impaired, creating a hazardous condition. Be
sure to consult Yokogawa for repairs and
modications.
The following safety symbols and cautionary
notes are used on the product and in this
manual:
This symbol is used to indicate that a hazardous
condition will result which, if not avoided, may
lead to loss of life or serious injury. This manual
describes how the operator should exercise care
to avoid such a risk..
This symbol is used to indicate that a hazardous
condition will result which, if not avoided, may
lead to minor injury or material damage. This
manual describes how the operator should
exercise care to avoid a risk of bodily injury or
damage to the instrument.
This symbol is used to call your attention to a
condition that must be observed in order to avoid
the risk of damage to the instrument or system
problems.
This symbol is used to call your attention to
information that should be referred to in order to
know the operations and functions of the
instrument.
For Safe Use of Rotameter RAMC
• If the process uid is harmful to personnel,
handle Rotameter RAKD carefully even after it
has been removed from the process line for
maintenance or other purposes. Exercise
extreme care to prevent the uid from coming
into contact with human esh and to avoid
inhaling any residual gas.
• In case of Explosion proof type instrument,
further requirements and differences are
described in Chapter 8 " INSTRUCTIONS FOR
EXPLOSION PROTECTED RAKD”. The description in Chapter 8 is prior to other descriptions in this instruction manual.
IM 01R01B30-00E-E 5th edition January 01, 2013 -00
1-2
CAUTION
WARNING
IMPORTANT
<1. INTRODUCTION>
• When carrying Rotameter RAKD around,
exercise extreme care to avoid dropping it
accidentally and causing bodily injury.
Warranty
• The warranty of this instrument shall cover the
period noted on the quotation presented to the
Purchaser at the time of purchase. The Seller
shall repair the instrument free of charge when
the failure occurred during the warranty period.
• All inquiries on instrument failure should be
directed to the Seller’s sales representative from
whom you purchased the instrument or your
nearest sales office of the Seller.
• Should the instrument fail, contact the Seller
specifying the model and instrument number of
the product in question. Be specic in describing
details on the failure and the process in which
the failure occurred. It will be helpful if
schematic diagrams and/or records of data are
attached to the failed instrument.
• Whether or not the failed instrument should be
repaired free of charge shall be left solely to the
discretion of the Seller as a result of an
inspection by the Seller.
• When removing the instrument from hazardous
processes, avoid contact with the uid and the
interior of the meter.
• In case of Explosion proof type instrument,
further requirements and differences are
described in Chapter 8 " INSTRUCTIONS FOR
EXPLOSION PROTECTED RAKD”. The
description in Chapter 8 is prior to other
descriptions in this instruction manual..
Restriction on Use of Radio Transceiver
Although the transmitter has been designed to
resist high frequency electrical noise, if a radio
transceiver is used near the transmitter or it
external wiring, the transmitter may be affected by
high frequency noise pickup. To test for such
effects, bring the transceiver in use slowly from a
distance of several meters from the transmitter,
and observe the measurement loop for noise
effects. Thereafter, always use the transceiver
outside the area affected by noise.
The Purchaser shall not be entitled to
receive repair services from the Seller free
of charge, even during the warranty period,
if the malfunction or damage is due to:
• improper and/or inadequate maintenance of the
instrument in question by the Purchaser.
• handling, use or storage of the instrument in
question beyond the design and/or specications
requirements.
• use of the instrument in question in a location
not conforming to the conditions specied in the
Seller’s General Specication or Instruction
Manual.
• retrotting and/or repair by an other party than
the Seller or a party to whom the Seller has
entrusted repair services.
• improper relocation of the instrument in question
after delivery.
• reason of force measure such as res,
earthquakes, storms/ oods, thunder/lightning, or
other reasons not attributable to the instrument
in question.
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1-4
F10.EPS
<1. INTRODUCTION>
1.2 General description
This manual describes installation, operation and maintenance of the RAKD. Please read it carefully before
using this device.
Further, please note that customer features are not described in this manual. When modifying specications,
construction or parts, this manual is not necessarily revised unless it can be assumed that these changes will
impair RAKD functions or performance.
All units are thoroughly tested before shipping. Please check the received units visually to ensure that they
have not been damaged during transport. In case of defects or questions please contact your nearest
YOKOGAWA service centre or sales office. Please describe any defect precisely and indicate model code as
well as com. no. number.
YOKOGAWA refuses any liability for units which have been repaired by the user without prior consent and do
not meet the specications as a consequence..
1.3 Principle of measurement
The RAKD is a Variable Area Flow Meter for volume and mass measurements of gases and liquids.
A oat, whose movement is nearly independent of viscosity is guided concentrically in a specially shaped cone.
The position of the oat is transferred magnetically to the indicator, which shows the measurement values by a
pointer on a scale. The indicator can be equipped with limit switches and an electronic transmitter.
Fig. 1.1
All units are calibrated with water or air by the manufacturer. By adjusting the calibration values to the measured
substance’s state of aggregation (density, viscosity), the ow rate scale for each measuring tube can be
determined.
IM 01R01B30-00E-E 5th edition January 01, 2013 -00
Illustration of maximum allowable operation temperature depending on
ambient temperature for Rotameter type RAKD
Max. operation temperature [°C]
Ambient temperatur [°C]
7580
125
150
175
225
250
275
Version without valveVersion with valve
F21.EPS
2. Precautions
2.1 Transportation and Storage
Before transporting the unit, it is recommended to x the oat with a card-board strip in the same way as
when shipped from factory. Prevent foreign objects from entering the tube (e.g. by covering openings).
To protect the unit and especially the tube’s interior from soiling, store it only at clean and dry locations
2.2 Installation
Ambient temperature and humidity of the installation location must not exceed the specied ranges. Avoid
locations in corrosive environments. If such environments are unavoidable, ensure sufficient ventilation.
Although the RAKD features a very solid construction, the instrument should not be exposed to strong
vibration or impact stress.
Please note that the RAKD is magnetic sensing system can be inuenced by external inhomogeneous
magnetic elds (such as solenoid valves). Alternating magnetic elds (≥ 10Hz) as well as homogeneous,
static magnetic elds (in the area of the RAKD), like the geomagnetic eld have no inuence. Asymmetric
ferromagnetic bodies of considerable mass (e.g. steel girders) should be kept at a distance of at least 250 mm
from the RAKD.
To avoid interference, the distance between two adjacent RAKDs must be at least 120 mm.
Do not expose the unit to pressures higher than the indicated maximum operating pressure (refer to
specications)
Make sure that wetted parts are resistant against the process medium.
Ambient- and process-temperature may exceed specied maximum values. Note the temperature curves in
g. 2-1 and chapter 7 "Technical data".
The Rotameter must be mounted vertically. The ow direction is upwards.
2-1
Fig. 2-1. For option /KS1or /KN1 (Ex-version) the maximum values for ambient and process temperature
according to the respective temperature class mentioned in g. 3-2 and tables 7-2 to 7-5 must
be regarded. The minimum ambient temperature is -25°C.
IM 01R01B30-00E-E 5th edition January 01, 2013 -00
2-2
<2. PRECAUTIONS>
Check movability of the oat (5)* by watching the pointer. The pointer should follow the movement of the oat.
If this is not the case, oat and measuring tube (1;21) should be cleaned.
Check the movability of the pointer by careful moving it with your ngers and watching whether it responds to
the scale value. If it does not work properly, the mechanical display unit (14) must be changed.
To avoid damage of the oat and of the stopper do not use magnetic valves. In the phase of start up increase
the ow slowly to the desired ow rate. If a sudden rise of the pressure can not be avoided (with use of
magnetic valves) the ow must be limited to the maximum used value (e.g. by valve).
*: Position numbers are illustrated in the explosion drawings in chapter 6.
IM 01R01B30-00E-E 5th edition January 01, 2013 -00
The pipe has to be so stabilized that vibrations on the pipe are avoided. Additional recommendations can be
found in guideline VDI/VDE 3513 sheet 3.
If pollution of the metering tube may appear a bypass-pipe is recommended, which permits the removal (see.
chapter 6 “maintenance”) of the Rotameter for cleaning without interruption of the ow.
Before installing the Rotameter, make sure there are no parts of packing or securing inside the Rotameter.
It has to be taken care at the connection of units with internal thread that no residues of the sealing compound
come into the tube (e.g. remains of the PTFE sealing compound).
To avoid stress in the connecting pipes, the connecting anges must be aligned in parallel and axial direction.
Bolts and gaskets have to be selected according to the maximum operating pressure, the temperature range
and corrosion conditions. Centre gaskets and tighten nuts with a torque appropriate for the pressure range.
If contamination or soiling of the RAKD is to be expected, a bypass should be installed to allow the removal of
the instrument without interruption of the ow.
Please read also chapter 2.2. For further instructions on installation please refer to VDI/VDE3513.
In case of devices without valve but with process connection internal thread the oat shaft of tubes with cone
44 and bigger sizes may move into the range of the threaded joint. Keep attention not to bend the guide bar
when screwing up the connection. The inner diameter of the connector must be at least 8 mm for cone sizes
44 - 51 resp. 10 mm for cone sizes 52 and 53.
To avoid oat bouncing in case of gas applications, attend to VDI/VDE 3515 sheet 3.
For devices without valve use a throttle either in the inlet or outlet (to install at that side with the bigger volume).
For installation of several instruments in parallel tubes take care that the distance between the middle axis is
at least 120 mm to avoid magnetic inuence. The distance to other ferritic material should not be less than
60 mm. Take care that the strength of external magnetic elds is approximately 0 mT.
3.2 Wiring
3.2.1 Connecting diagrams
Please regard the drawings of this chapter.
RAKD with electronic transmitter or with limit switches have one or two Quickon connectors at the rear.
In the connecting diagrams he lower one is named "S" and the upper one "T".
Not used connector positions are closed with a blind plug.
The following table shows the connections for the respective equipment conguration.
The load resistance of metering or indicating instruments, which are connected serial to the current output, may
not exceed (U- 13.5 V) / 20 mA .
Fig. 3-3 RAKD in Ex-version with electronic transmitter in combination with power supply and additional limit switch or pulse output with transmitter relay.
IM 01R01B30-00E-E 5th edition January 01, 2013 -00
3-4
1
2
3
5
15 mm
4
F6.EPS
F7.EPS
<3. INSTALLATION>
3.2.2 Conductor connection with Quickon
To connect the conductor, please observe in particular the following steps :
- Strip the sheath to a length of approx. 15 mm
(g. 3-4) and slide the union nut (1), the cap (2)
and the rubber seal (3) onto the conductor.
Fig. 3-4
Fig. 3-5
- Slide the rubber seal as far as the rim of the insulation and then slide the cap onto the rubber seal.
This provides the strain relief for the conductor (g. 3-5).
IM 01R01B30-00E-E 5th edition January 01, 2013 -00
- insert the core ends into the feed through of the splice ring (g. 3-6). In order to guarantee a clear
assignment of the cores, the individual core feed thorough of the splice ring are numbered (1, 2,…).
Fig. 3-6
- Cut off the projecting core ends. Make sure that
the core ends are ush with the splice ring (5):
they can protrude by up to 3 mm, but must not
be too short.
3-5
- Insert the prepared conductor into the QUICKON
contact carrier (4). Turn the conductor with the
splice ring until the coding noses t exactly into
the corresponding guides (g. 3-7).
Fig. 3-7
- Close the gland by tightening the union nut. This
presses the core ends into the insultation
displacement terminal blocks, cuts open the core
insulation and creates the electrical contact (IDC
connection system).
The measured uid should neither consist of a multi-phase mixture nor contain ferrite ingredients or large solid
mass particles.
The RAKD scale is adjusted to the state of operation/aggregation of the measured uid by the manufacturer. If
the state of operation changes, it might become necessary to establish a new scale.
This depends on several factors:
- If the RAKD is operated in the given viscosity independent range, only the density of the oat as well as the
operational density of the previous and new substance have to be considered. In case the operational
density only changes marginally (≤ 0.5%), the present scale can be used.
- If the RAMC is operated outside the given viscosity independent range, the viscosities at the previous and
new state of operation as well as the mass and diameter of the oat have to be taken into account.
To establish a new scale, please refer to the folder “Anweisung zur Skalenumrechnung” (Instructions for
Scale Conversion) as well as the conversion table or order a new scale.
4.2 Pulsation and pressure shock
Strong pressure impact or ow pulsations can impair measuring operation considerably and should be avoided
open valves slowly, raise operating pressure slowly).
4.3 Start of operation of electronic transmitter
Ensure that the device has been connected correctly according to section 3-2 and that the used power supply
meets the requirements indicated on the scale.
Switch on the power supply..
The RAMC is now ready for operation..
The transmitter is prepared and calibrated according to its model code as a 2 wire unit.
The optional limit switches are available as maximum or minimum type switches. They are proximity switches
according to EN 60947-5-6 (NAMUR). Maximal two switches can be installed. The option (/Wnn) includes the
respective transmitter relay.
These switches have been specied for hazardous area. However, the transmitter relay must be installed
in safe area.
The limit switches are connected to the transmitter relays as indicated in chapter 3.2.
The terminals for the limit switches are on a small board on top of the transmitter case.
Use of 2 standard limit switches (option /K3):
The MIN-MIN and MAX-MAX functions have been integrated at the factory as MIN-MAX switches in the RAKD
The MIN-MIN or MAX-MAX function is set by adjusting the switching direction of the transmitter relay. The
concerning 2- channel transmitter relays are:
Option /W1B: KFA5-SR2-Ex2.W
Option /W2B: KFA6-SR2-Ex2.W
Option /W4B: KFD2-SR2-Ex2.W
The following table shows the assignment:
Limit switches (Option /K1 to /K10)
FunctionSwitching direction of transmitter relay *
Channel 1Channel 2Channel 1Channel 2
MINMAXS1 position IS2 position I
MINMINS1 position IS2 position II (ON)
MAXMAXS1 position II (ON)S2 position I
* see following gure for S1 and S2 on transmitter relay.
Use of Fail Safe limit switches (option /K6 ... /K10):
For Fail Safe application only 1- channel transmitter relays are available.
Option /W2E: KHA6-SH-Ex1.W
Option /W2F: 2 x KHA6-SH-Ex1.W
Option /W4E: KFD2-SH-Ex1.W
Option /W4F: 2 x KFD2-SH-Ex1.W
If other transmitter relays are used as the above mentioned types, the transmitter relay has to be applied
as protection technology to ensure functional safety.
- After deecting the pointer by hand, it must return to measurement value. If the pointer pivots to different
values upon repeated deections, there is too much friction in the bearings. In this case, send indication unit
to service.
Checking free movement of oat:
- First, free movement of pointer has to be ascertained.
- Check visually if pointer follows each ow rate change. If not, clean oat and measuring tube.
Unit with electronic transmitter:
- Without ow, the output current must be 4 mA. At a ow rate of 100% the current must be 20 mA.
If only the pointer is moved to 100%, the current may not exeed 17mA.
6.1.2 Measuring tube, oat
The Rotameter does not normally require any maintenance. However cleaning is necessary if the measuring
cone or at has been contaminated by the process. To clean, the Rotameter must be removed from the
pipeline.
For all kind of intervention in the Rotameter like tightening the packing of the valve the pressures in pressurized
pipelines has to be reduced. Take care that the counter screw is tighten after screwing the valve.
Disassembling the tube
Please perform the following steps to clean the measuring tube and the oat:
• Disassemble the Rotameter from the pipe
• Unscrew hollowed top threaded bolt (6) (for cone 31 – 43)
resp. remove top snap ring and socket (for cone 44 – 51)
resp. only top snap ring (for cone 52 – 53)
• Remove top oat stop (3)
• Disassemble oat – Attention: Do not bend the oat
• For version with valve in the inlet remove rst the top head pipe plug (8)
• For version with valve in the outlet remove rst the lower head pipe plug;
in that case the disassembling of all parts start from down to top
• Cleaning of metering tube and oat
• To clean the valve loose screw nut (10) in the head. Afterwards you can unscrew spindle (12) with PTFE
packing box plus thrust collar (9)
Please don’t expose the oat to any strong magnetic alternating elds. The oating body and particularly
its measuring edge may not be damaged.
Assembling the tube
Mounting starts in opposite sequence.
Assembling the oat take care that the lower guide bar of the oat is xed in the middle boring of the lower
stop. The guide bar should not be bended.
The electronic transmitter is maintenance-free. The electronic section is sealed and can not be repaired.
The transmitter is tuned with the mechanical components in factory, therefore single components can be
replaced only by loss of accuracy.
6.1.5 Exchange of scale
Preparations :
· Check commision no., code, and data of new parts.
· Switch off power supply.
· Remove the cover of the indicator
Do not bend or twist the pointer on its axis !
Exchange of scale:
- Untighten the screw of the scale.
- Remove the screw and the small cover.
- Pull the scale out of the indicator to the left in which the scale raised on the right to raise it from the 2 pins.
- Shove the new scale correspondingly below the pointer from the left until the 2 pins click into the accompanying holes.
- Establish the small cover and x the scale with the screw.
6-3
Final actions:
· Fix the cover of the indicator.
· Switch power on.
· Check the unit for a faultless function.
6.1.6 Exchange of indicator
The indicator can be replaced by the same type if the scale of the old unit is put into the new indicator,
Procedure with RAKD with electronic transmitter (type "E" ):
· Switch off power supply.
· Remove the cover of the indicator
- Disconnect the cables from the Quickon connectors.
- Remove the old scale and put in the new one.
- Please not the hints for exchange of scale
- Remove the old indicator from the tube and replace it by the new one. Please take care to mount the
washers and spacers in the same positions as they were before dismantling.
Installation and operation of the Rotameter RAKD in compliance with this manual is generally trouble-free.
In case a RAKD has to be sent for repairs or checking to our service, please observe the following:
Due to legislation for the protection of the environment and for the safety of our staff, YOKOGAWA may only
ship, repair and check sent devices on the condition that this does not constitute any risk to environment
and staff.
YOKOGAWA can only process your returned RAKD if you attach a certicate of harmlessness according to
the following sample.
If the unit has been in contact with corrosive, poisonous, ammable or water polluting substances, you
must,
- ensure that all parts and hollow spaces of the unit are free of these dangerous substances.
- attach a certicate of harmlessness to the returned unit.
Please understand that YOKOGAWA cannot process your returned unit without such a certicate.
IM 01R01B30-00E-E 5th edition January 01, 2013 -00
6-6
ROTA YOKOGAWA GmbH & Co. KG
Service & Repair Department
Rheinstraße 8; D - 79664 Wehr
Phone no.: +49 (0)7761-567-190
Fax no.: +49 (0)7761-567-285
e-Mail: services.flow@de.yokogawa.com
Declaration of Decontamination
Legal regulations for the safety of our employees and operating equipment determine that we need
the declaration of decontamination before your order can be handled.
Please make sure to include it with the shipping documents, attached to the outside of the
packaging you use for shipment.
Customer data
Company:
Address:
Contact person: E-Mail:
Phone no.: Fax no.:
Reference/Order no.:
Instrument data*
Type: Serial no.:
Type: Serial no.:
*If not enough, note on separate sheet
Process data
Process medium:
Medium is: [ ] toxic
[ ] corrosive
[ ] explosive
[ ] biological hazardous
[ ] unknown if dangerous
[ ] non hazardous
Remarks:
Cleaning agent:
Kind of cleaning :
Other remarks / Reason of return:
We hereby confirm that this statement is filled in completely and truthfully. The returned
instruments were carefully cleaned and are thus free from product residue and dirt. I agree
that if this arrangement does not match with the instruments, they will be sent back to the
above mentioned customer address at our expenses.
Name Date Signature
<6. SERVICE>
IM 01R01B30-00E-E 5th edition January 01, 2013 -00
Pulse output/CPPulse output, acc. EN 60947-5-6 (NAMUR) Only for indicator E; not with limit switches
Hazardous area
approvals
Test and certicates /H1
Gost approval/QR1
Controller/R1
Delivery to Korea/KCWith KC-mark for Korea
Power supply for
electronic transmitter
Power supply
for limit switches
(transmitter relay)
code
/A29
/A30
/B4
/B8
/B10
/BG
/BD
/K2
/K3
/K6
/K7
/K8
/K9
/K10
/KS1
/KS2
/KS3
/KN1
/ES1
/ES3
/FS1
/CS1
/NS1
/PP
/P2
/P3
/P6
/PM1
/PM4
/PM5
/QR2
/QR3
/R3
/UTRN221N-B1, 20 ... 250V DC/AC, Ex iOnly for indicator E
/W1A
/W1B
/W2A
/W2B
/W2E
/W2F
/W4A
/W4B
/W4E
/W4F
Instruction manuals /IEn
/IDn
/IFn
Special order/ZSpecial design must be specication on extra sheet
*) if no instruction manual is selected, only a DVD with instruction manuals is shipped with the owmeter
DescriptionRestriction
US- engineering units
M12- connector acc. IEC 61076-2-101 (in preparation)
M12- connector with plug connector acc. IEC 61076-2-101 (in preparation)
Tag plate (SS) xed by wire and customer specied tag number on
scale
Neutral version
Customer provided marking on label
Percent scale
With customer specied tag number on scale
Dual Scale
MIN- contact
MAX- contact
MIN-MAX- contact, MIN-MIN- contact, MAX-MAX- contact
MIN- contact “Fail safe” version
MAX- contact “Fail safe” version
MIN-MAX- contact “Fail safe” version
MIN-MIN- contact “Fail safe” version
MAX-MAX- contact “Fail safe” version
ATEX intrinsically safe „ia“
ATEX gas and dust proof limit switches, category 2G 1D
ATEX intrinsically safe „ic“
ATEX category 3G „nL“ / 3D
IECEx intrinsically safe „ia“
IECEx intrinsically safe „ic“
FM intrinsically safe / non incendive limit switches (USA)
CSA intrinsically safe / non incendive limit switches (Canada)
NEPSI approval (China)
Oil + fat free for wetted surfaces
Pressure test report measuring system
Certicate of Compliance with the order acc. to EN 10204: 2004- 2.1
As /P2 +Test report acc. to EN 10204: 2004- 2.2
Material certicate acc. to EN 10204: 2004- 3.1
PAMI test (1 test point : metering tube)
PAMI test (4 test points : metering tube, connection heads, sealing plug)
PAMI test (5 test points : metering tube, connection pieces, slip on anges)
Primary Calibration and Test Conrmation valid in Russia
Primary Calibration and Test Conrmation valid in Kazakhstan
Primary Calibration and Test Conrmation valid in Uzbekistan
Pre pressure controller 1.4571 (only with valve in inlet; for gas
variable pre pressure and liquids with variable pre and back pressure)
Back pressure controller 1.4571 (only with valve in outlet; for gas
with variable back pressure)
KFA5-SR2-Ex1.W / 115 V AC, 1 channel
KFA5-SR2-Ex2.W / 115 V AC, 2 channel
KFA6-SR2-Ex1.W / 230 V AC, 1 channel
KFA6-SR2-Ex2.W / 230 V AC, 2 channel
KHA6-SH-Ex1 / 115/230 V AC, 1 channel, Fail Safe
2x KHA6-SH-Ex1 / 115/230 V AC, 1 channel, Fail Safe
KFD2-SR2-Ex1.W / 24 V DC, 1 channel
KFD2-SR2-Ex2.W / 24 V DC, 2 channel
KFD2-SH-Ex1 / 24 V DC, 1 channel, Fail Safe
2x KFD2-SH-Ex1 / 24 V DC, 1 channel, Fail Safe
Quantity of instruction manuals in English
Quantity of instruction manuals in German
Quantity of instruction manuals in French
Only for indicator E
Only for indicator E or T with limit switches
Only for indicator E or T with limit switches
Plate 12 x 40 mm; max. 45 digits
Not with Ex-proof type
Max. 45 digits
Adjustment only possible for 1 uid
Only for indicator T
Only for indicator T
Only for indicator T
Only for indicator T
Not for indicator T without limit switches
Only for indicator T with limit switches
Not for indicator T without limit switches
Not for indicator T without limit switches
Not for indicator T without limit switches
For indicator T only with limit switches
For indicator T only with limit switches; limit switches
only /K1, /K2, /K3, only in combination with power
supply /WxA or /WxB
Not for indicator T without limit switches
Not for /R1 and /R3
Only for tube, connection heads, screw sealing plug
Only for models with valve
Only for models with process connection D4, A1, A2
See page 4
See page 4
See page 4
with
Only for process connection R3, T3, C3, W3, P1;
only with valve
Only for process connection R3, T3, C3, W3, P1;
only with valve
Only for limit switches /K1, /K2, /K3 or /CP
Only for limit switches /K1, /K2, /K3
Only for limit switches /K1, /K2, /K3 or /CP
Only for limit switches /K1, /K2, /K3
Only for limit switches /K6, /K7
Only for limit switches /K8, /K9, /K10
Only for limit switches /K1, /K2, /K3 or /CP
Only for limit switches /K1, /K2, /K3
Only for limit switches /K6, /K7
Only for limit switches /K8, /K9, /K10
n = 1 to 9 selectable *)
n = 1 to 9 selectable *)
n = 1 to 9 selectable *)
– Installation position : vertical
– Flow direction : upwards
– Face to face length :
Weight : see table 7-14
LOCAL INDICATOR
(Indicator/Code -T)
Principle :
The indication is made by magnetic coupling of a magnet
enclosed in the oat and a magnet in the indication unit,
which follows the movements of the oat.
Indication scale : Flow units
Indicator housing
– Material : Stainless steel AISI 304
(1.4301)
– Degree of Protection : IP66/67
Scales :
- Standard : removable aluminium plate with scale
(double scale as option)
Transportation and storage condition
: - 40°C to +110°C
.
G1/4; 1/4 NPT; G 3/8; 3/8; NPT
acc. ASME B 16.5 ½” and 1”
125 mm (with ange 250 mm)
ELECTRONIC TRANSMITTER
(Indicator/Code -E)
Temperature range
: -25°C to +65°C
Transportation and storage condition
: -40°C to +70°C
Process-/ Ambient temperature :
The dependency of the process temperature from the
ambient temperature is shown in g.6.
Power supply : 14 ... 30 V DC
Load resistance : (U - 14V) / 20 mA, max. 500 Ω
Analog output : 4-20 mA
Linearity : ≤ ± 0.25% f.s.
Hysteresis : ≤ ± 0.15% f.s.
Repeatability : ≤ ± 0.16% f.s.
Inuence of power supply
: ≤ ± 0.1% f.s.
Temp. coefficient of analog output
: ≤ ± 0.5% /10 K f.s.
AC-part of analog output
: ≤ ± 0.15% f.s.
Long time stability : ≤ ± 0.2% / year
Maximum output current
: 21.5 mA
Output current in case of failure
: ≤ 3.6 mA (NAMUR NE 43)
Response time (99%)
: approx. 1 s
Pulse output (Option /CP)
: Electronic switch with galvanic
IM 01R01B30-00E-E 5th edition January 01, 2013 -00
7- 8
<7. TECHNICAL DATA>
CONTROLLER (Option /R1 and R3)
Differential pressure controller for a constant ow at
uctuations of the process pressure.
These are no valves to reduce the pressure.
- Controller /R1 for liquids with variable inlet or
outlet pressure and for gases with variable inlet pressure
and constant back pressure.
- Controller /R3 for gases with uctuations of the back pressure.
Max. liquid ow : 100 l/h
Max. gas ow : 3250 l/h
Max. pressure : 25 bar
Recommended differential pressure
: >400 mbar
Temperature range : -25°C to + 80°C
Materials :
Table 7-5
HousingDiaphragmSprings
/R1 / /R3CrNi-SteelPTFECrNi-Steel
l/h air at 20°C ; 1.013 bar abs.
Inlet pressure
Fig. 7-1 Diagram controller characteristic
COMPLIANCE WITH IEC 61508
RAKD with local indicator and standard or fail safe limit
switches (RAKD[][]-[][]SS-[][][][][]-T[][]NNN/K1…K10):
Suitable for application in safety functions up to and including
SIL2.
RAKD with valve and controller with local indicator and
standard or fail safe limit switches
(RAKD[][]-[][]SS-[][]V[][]-T[][]NNN/R[]/K1…K10):
Suitable for application in safety functions up to and including
SIL1.
Reliability data available on request in FMEDA report.
COMPLIANCE WITH ISO 13849
For Safety Metrics acc. to ISO 13849-2 please refer to the
FMEDA report.
METROLOGICAL REGULATION IN CIS (GOST)
RAKD has “Pattern Approval Certicate of Measuring
Instruments” and is registered as a measuring instrument in
Russia, Kazakhstan, Uzbekistan, Belarus and Ukraine.
The calibration laboratory of Rota Yokogawa is approved by
Federal Agency on Technical Regulating and Metrology in
Russia and other Metrological Organizations in CIS countries
to issue primary calibration conrmations for RAKD, option
/QR[].
Furthermore RAKD is RTN (GGTN) approved for installation
in hazardous areas.
For export to CIS countries please contact your Yokogawa
representative.
HAZARDOUS AREA SPECIFICATIONS
RAKD with ATEX- certication “intrinsic safe”
(option /KS1)
Certicate :
KEMA 00ATEX 1037X
Output signal :4–20 mA / Pulse output / Limit switches
Explosion proof :
Ex ia IIC T6 ... T4 Gb
Entity parameter :
Table 7-6
Analog
output
Ui [V]301616161616
Ii[ mA]1002025522552
Pi [mW]75064641696416 9
Li [mH]0.7300.150.150.10.1
Ci [nF]2.401501503030
Temperature specication :
Table 7-7
Congura-
tion
Transmitter
4-20mA /
Pulse
Limit
switch(es)
type 2
Limit
switch(es)
type 3
For the conguration where a transmitter is combined with
limit switches, the temperature class is determined by the
most restrictive combinations of maximum ambient temperature
and maximum process temperature.
Description of limit switch type 2 and 3 see ATEX certicates
from Pepperl & Fuchs:
- PTB 99 ATEX 2219X ( SC2-NO) for /K1 to /K3
- PTB 00 ATEX 2049X (SJ2-S.N) for /K6 to /K10
RAKD “non incendive” (option /KN1)
Type “n” (non incendive) acc. EN 60079-15.
Explosion proof :
Ex nL IIC T6 protection „nL”; group II ; category 3G
Dust proof :
Ex II 3D; group II ; category 3D
Max. surface temperature : 80°C
Entity parameter :
see table 7-6
Temperature specication :
see table 7-7
Pulse
output
Max.
ambient
temperature
65°C65°C
50°C80°C
45°C100°CT5
38°C135°CT4
65°C65°CT6
80°C80°C
59°C100°C
100°C100°C
73°C135°C
24°C65°CT6
37°C80°C
34°C100°C
57°C80°C
48°C135°C
Limit
switch
type 2
/K1-/K3
process tem-
perature
Limit
switch
type 3
/K1-/K3
Max.
switch
type 2
/K6-/K8
Limit
Limit
switch
type 3
/K6-/K8
Temperature
class
T6
T5
T4
T5
T454°C100°C
IM 01R01B30-00E-E 5th edition January 01, 2013 -00
RAKD with ATEX- certication “intrinsic safe ic”
(option /KS3)
Output signal :
4–20 mA / Pulse output / Limit switches
Explosion proof :
Ex ic IIC T6; Gc group II ; category 3G
Entity parameter :see table 6
Temperature specication :
see table 7
RAKD with IECEx- certication “intrinsic safe”
(option /ES1)
Certicate :
IECEx DEK 12.0003X
Output signal :
4–20 mA / Pulse output / Limit switches
Explosion proof :
Ex ia IIC T6 ... T4 Gb
Entity parameter :
Table 8
Analog
output
Ui [V]301616161616
Ii[ mA]1002025522552
Pi [mW]75064641696416 9
Li [mH]0.7300.150.150.10.1
Ci [nF]2.401501503030
Temperature specication :
Table 9
Congura-
tion
Transmitter
4-20mA /
Pulse
Limit
switch(es)
type 2
Limit
switch(es)
type 3
For the conguration where a transmitter is combined with
limit switches, the temperature class is determined by the
most restrictive combinations of maximum ambient temperature
and maximum process temperature.
Description of limit switch type 2 and 3 see IECEx certicates
from Pepperl & Fuchs:
- IECEx PTB 11.0091X ( SC2-NO) for /K1 to /K3
- IECEx PTB 11.0092X (SJ2-S.N) for /K6 to /K10
Pulse
output
ambient
temperature
Max.
Limit
switch
type 2
/K1-/K3
process tem-
Limit
switch
type 3
/K1-/K3
Max.
perature
switch
type 2
/K6-/K8
65°C65°C
50°C80°C
45°C100°CT5
38°C135°CT4
65°C65°CT6
80°C80°C
59°C100°C
100°C100°C
73°C135°C
24°C65°CT6
37°C80°C
34°C100°C
57°C80°C
48°C135°C
Limit
Limit
switch
type 3
/K6-/K8
Temperature
class
T6
T5
T4
T5
T454°C100°C
RAKD with IECEx- certication “intrinsic safe ic”
(option /ES3)
Output signal :
4–20 mA / Pulse output / Limit switches
Explosion proof :
Ex ic IIC T6; Gc group II ; category 3G
Entity parameter :see table 8
Temperature specication :
see table 9
RAKD with NEPSI- certication “intrinsic safe”
(China) (option /NS1) :
Certicate :
GYJ101552
Output signal :
4–20 mA
Explosion proof :
Ex ia IIC T5/T6
Max. Tamb. :
65°C
Limit switches :
option /K1 to /K8, see certicates GYJ11.1505X
Entity parameter :
Table 10
Ui [V]301616161616
Ii[ mA]10 02025522552
Ui [V]301616161616
Pi [mW]750646416964169
Ii[ mA]10 02025522552
Li [mH]0.7300.150.150.10.1
Pi [mW]750646416964169
Ci [nF]2.401501503030
Li [mH]0.7300.150.150.10.1
Ci [nF]2.401501503030
Analog
output
Analog
output
Pulse
output
Pulse
output
Limit
switch
type 2
Limit
/K1-/K3
switch
type 2
/K1-/K3
Limit
switch
type 3
Limit
/K1-/K3
switch
type 3
/K1-/K3
Limit
switch
type 2
Limit
/K6-/K8
switch
type 2
/K6-/K8
Temperature specication :
Table 11
Max. ambient
temperature
Max. process
temperature
Temperature
65°C65°CT6
50°C80°CT6
45°C95°CT5
Description of limit switch type 2 and 3 see ATEX certicates
from Pepperl & Fuchs:
- PTB 99 ATEX 2219X ( SC2-NO) for /K1 to /K3
- PTB 00 ATEX 2049X (SJ2-S.N) for /K6 to /K10
RAKD with PESO- certication (India)
Option /KS1 must be selected. PESO- certicate is available
at your Yokogawa Sales Office.
RAKD with KOSHA- certication (Korea)
Option /ES1 must be selected.
Same data as for IECEx certication.
To ensure intrinsically safety, it is not permitted to repair or to modify the electronic transmitter and the limit
switches
The RAKD with electronic transmitter type "E" as well the limit switches (option/ K_) are intrinsically safe devices.
The RAKD with option /KS1 is ATEX certied for hazardous areas of zone 1 (category 2) and zone 2 (category
3). It is not homologated for zone 0 areas (category 1) (option /KS1 for category 2 and 3, option /KS3 and /KN1
only for category 3G). The classication in brackets is given according to the EU regulation ATEX, 94/9/EG.
The limit switches but not the electronic transmitter are ATEX dust proof certied (option /KS2).
The RAKD with option /KS1 and /ES1 are certied for hazardous areas of EPL Gb.
The RAKD with option /KS3 and /ES3 are for use in hazardous areas of EPL Gc.
The RAKD with option /FS1 is FM- certied for USA and Canada for hazardous classied locations Class I,
Division 1, Groups A, B, C, D.
The RAKD with option /NS1 is NEPSI- certied.
The RAKD must be connected to an intrinsically safe, certied power supply with a maximum voltage and
output power below the maximum values of the RAKD (refer to Technical data, section 7). The combined
internal inductance and capacity of the RAKD and connecting cables must be less than the permitted external
inductance and capacity of the power supply. Accordingly, the limit switches and the pulse output have to be
connected to intrinsically safe, certied isolating switching ampliers. The relevant maximum safety values must
be heeded at all times. Power supply and transmitter relay are assigned devices and should be installed outside
any hazardous zone.
Especially in the case of high uid temperatures, heated metering tubes or heat radiation by heat tracing, make
sure that the temperature in the indicator housing does not exceed the permissible maximum ambient
temperature of the transmitter (refer to Technical data, section 7).
To ensure intrinsically safety, it is not permitted to repair or modify the measuring transmitter.
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8-2
<8. EXPLOSION-PROTECTED TYPE INSTRUMENTS>
8.2 Intrinsically safe ATEX certied RAKD (/KS1)
8.2.1 Technical data
EC-Type Examination Certicate Nr.: KEMA 00ATEX1037X
Used standards:
- EN 60079-0: 2009
- EN 60079-11: 2007
The RAKD with electronic transmitter and limit switches is an intrinsically safe device. This device is certied for
hazardous areas of zone 1 (category 2) and zone 2 (category 3). It is not homologated for zone 0 (category 1).
The classications in brackets are given according to EC- Directive 94/9/EG (ATEX).
Identication in accordance with regulation 94/9/EG (ATEX) :
II 2 G
Data of electronic transmitter type -E :
Type of protection : Intrinsically safe Ex ia IIC T6-T4 Gb
Ambient temperature: -25°C ... +65°C
Safety relevant maximum values:
Supply (current output):
Maximum voltage: Ui= 30 V
Maximum current: Ii = 100 mA
Maximum power: Pi = 750 mW
Inner inductance: Li = 0.73 mH
Inner capacity: Ci = 2.4 nF
Pulse output:
Maximum voltage: Ui= 16 V
Maximum current: Ii = 20 mA
Maximum power: Pi = 64 mW
Inner inductance: Li = 0 mH
Inner capacity: Ci = 0 nF
Data of limit switches :
Type of protection : Intrinsically safe Ex ia IIC T6 Gb
Safety relevant maximum values:
SC2-NO (/K1.../K3) SJ2-S.N (/K6.../K10)
Type 2 Type 3 Type 2 Type 3
Maximum voltage: Ui = 16 V 16 V Ui = 16 V 16 V
Maximum current: Ii = 25 mA 52 mA Ii = 25 mA 52 mA
Maximum power: Pi = 64 mW 169 mW Pi = 64 mW 169 mW
Inner inductance: Li = 0.15 mH 0.15 mH Li = 0.1 mH 0.1 mH
Inner capacity: Ci = 150nF 150nF Ci = 30nF 30nF
IM 01R01B30-00E-E 5th edition January 01, 2013 -00
For the conguration where a transmitter is combined with limit switches, the temperature class is determined by
the
most restrictive combinations of maximum ambient temperature
and maximum process temperature.
Description of limit switch type 2 and 3 see ATEX certicates from Pepperl & Fuchs:
- PTB 99 ATEX 2219X ( SC2-NO) for /K1 to /K3
- PTB 00 ATEX 2049X (SJ2-S.N) for /K6 to /K10
Intrinsic safe power supply for the electronic transmitter :
The power supply for the electronic transmitter is an associated apparatus that may not be installed in the hazardous area, and it may not exceed the safety relevant maximum values for voltage, current and power of the
electronic transmitters as specied above.
For example the type RN221N-B1 (option (U__) according certicate PTB 00 ATEX 2018 can be used.
Intrinsic safe power supply for the limit switches :
The power supply (transmitter relay) for the limit switches is an associated apparatus that may not be installed in
the hazardous area, and it may not exceed the safety relevant maximum values for voltage, current and power of
the connected limit switch as specied above.
For example the type KFA6-SR2-Ex... (option (W2_) according certicate PTB 00 ATEX 2081 (230V AC supply)
or the type KFD2-SR2-Ex... (option (W4_) according certicate PTB 00 ATEX 2080 (24V DC supply) can be
Certicate Nr.: IECEx DEK 12.0003X
Used standards:
- IEC 60079-0: 2011
- IEC 60079-11: 2011
The RAKD with electronic transmitter and limit switches is an intrinsically safe device. This device is certied for
EPL Gb.
Data of electronic transmitter type -E :
Type of protection : Intrinsically safe Ex ia IIC T6 -T4 Gb
Ambient temperature: -25°C ... +65°C
Safety relevant maximum values:
Supply (current output):
Maximum voltage: Ui= 30 V
Maximum current: Ii = 100 mA
Maximum power: Pi = 750 mW
Inner inductance: Li = 0.73 mH
Inner capacity: Ci = 2.4 nF
Pulse output:
Maximum voltage: Ui= 16 V
Maximum current: Ii = 20 mA
Maximum power: Pi = 64 mW
Inner inductance: Li = 0 mH
Inner capacity: Ci = 0 nF
Data of limit switches :
Type of protection : Intrinsically safe Ex ia IIC T6
Safety relevant maximum values:
SC2-NO (/K1.../K3) SJ2-S.N (/K6.../K10)
Type 2 Type 3 Type 2 Type 3
Maximale Spannung: Ui = 16 V 16 V Ui = 16 V 16 V
Maximaler Strom: Ii = 25 mA 52 mA Ii = 25 mA 52 mA
Maximale Leistung: Pi = 64 mW 169 mW Pi = 64 mW 169 mW
Innere Induktivität: Li = 0.15 mH 0.15 mH Li = 0.1 mH 0.1 mH
Innere Kapazität: Ci = 150nF 150nF Ci = 30nF 30nF
IM 01R01B30-00E-E 5th edition January 01, 2013 -00
8-6
<8. EXPLOSION-PROTECTED TYPE INSTRUMENTS>
Temperature specication:
Table 8-2
Congura-
tion
Transmitter
4-20mA /
Pulse
Limit
switch(es)
type 2
Limit
switch(es)
type 3
Max.
ambient
temperature
65°C65°C
50°C80°C
45°C100°CT5
38°C135°CT4
65°C65°CT6
80°C80°C
59°C100°C
100°C100°C
73°C135°C
24°C65°CT6
37°C80°C
34°C100°C
57°C80°C
48°C135°C
Max.
process tem-
perature
Temperature
class
T6
T5
T4
T5
T454°C100°C
For the conguration where a transmitter is combined with limit switches, the temperature class is determined by
the
most restrictive combinations of maximum ambient temperature
and maximum process temperature.
Description of limit switch type 2 and 3 see ATEX certicates from Pepperl & Fuchs:
- IECEx PTB 11.0091X (SC2-NO) for /K1 to /K3
- IECEx PTB 11.0092X (SJ2-S.N) for /K6 to /K10
Intrinsic safe power supply for the electronic transmitter :
The power supply for the electronic transmitter is an associated apparatus that may not be installed in the hazardous
area, and it may not exceed the safety relevant maximum values for voltage, current and power of the electronic
transmitters as specied above. The internal capacity or inductivity of RAKD inclusive cable may not exceed the
external capacity or inductivity of the power supply.
For example the type RN221N-B1 (Option /U__) with certicate PTB 00 ATEX 2018 can be used.
Intrinsic safe power supply for the limit switches :
The power supply (transmitter relay) for the limit switches is an associated apparatus that may not be installed in
the hazardous area, and it may not exceed the safety relevant maximum values for voltage, current and power of
the connected limit switch as specied above.
For example the type KFA6-SR2-Ex... (option (W2_) according certicate IECEx PTB 11.0031 (230V AC supply)
or the type KFD2-SR2-Ex... (option (W4_) according certicate IECEx PTB 11.0034 (24V DC supply) can be used.
IM 01R01B30-00E-E 5th edition January 01, 2013 -00
IM 01R01B30-00E-E 5th edition January 01, 2013 -00
8-8
current limitation
R1 S1 = 200 mA F
+ Po = 0.7 W
to Io = 100 mA
D1 = 27 V 5% 24V DC Uo = 28.35 V
“nL” voltage - C
o
= 260 nF
limitationLo = 8.0 mH
- R
1=
300 W
,
5%, 3W
F1.EPS
RAKD
<8. EXPLOSION-PROTECTED TYPE INSTRUMENTS>
8.4 Non incendive RAKD for Category 3 (ATEX) (/KN1)
Der RAKD with /KN1 is a unit with protection „nL”.
It may be used in hazardous areas of zone 2 (category 3)
The classication in brackets is given according to the EC- Directive ATEX, 94/9/EG.
This version is same hardware as intrinsically safe type.
Protection : Ex nL IIC T6 X
n = non incendive
L = unit with limited energy
Explosion proof : Ex nL IIC T6 X protection „n”; group II ; category 3GD
Marking :
II 3 GD
Ambient temperature : -25 °C < Ta < 65 °C :
Entity parameter :
Table 8-3
Analog outputPulse output /CPLimit switch
/K1 ... /K3
Ui [V]30161616
Ii [mA]100202525
Pi [mW]750646464
Li [µH]7300150100
Ci [nF]2.4015030
Limit switch
/K6 ... /K10
Protection circuit for a power supply to meet the maximum values :
8.5 Dust proofed limit switches (ATEX) (/KS2)
Certication by Pepperl & Fuchs :
EC-Type Examination Certicate Nr.: ZELM 02 ATEX 0128X
Identication in accordance with regulation 94/9/EG (ATEX) :
II 1 D
Maximum surface temperature : 108°C.
The dust explosion proof for the limit switches is only available if ordered without electronic transmitter (only with
housing type "T").
IM 01R01B30-00E-E 5th edition January 01, 2013 -00
The RAKD with /KS3 or /ES3 is a unit with protection „ic”.
It may be used in hazardous areas of category 3G.
This version is same hardware as intrinsically safe "ia" type (/KS1, /ES1).
Data of electronic transmitter type -E :
Type of protection : Intrinsically safe Ex ic IIC T6-T4 Gc
Ambient temperature: -25°C ... +65°C
Safety relevant maximum values:
Supply (current output):
Maximum voltage: Ui= 30 V
Maximum current: Ii = 100 mA
Maximum power: Pi = 750 mW
Inner inductance: Li = 0.73 mH
Inner capacity: Ci = 2.4 nF
Pulse output:
Maximum voltage: Ui= 16 V
Maximum current: Ii = 20 mA
Maximum power: Pi = 64 mW
Inner inductance: Li = 0 mH
Inner capacity: Ci = 0 nF
Protection circuit for a power supply to meet the maximum values :
Data of limit switches :
Type of protection : Intrinsically safe Ex ic IIC T6 Gc
Safety relevant maximum values:
SC2-NO (/K1.../K3) SJ2-S.N (/K6.../K10)
Type 2 Type 3 Type 2 Type 3
Maximale Spannung: Ui = 16 V 16 V Ui = 16 V 16 V
Maximaler Strom: Ii = 25 mA 52 mA Ii = 25 mA 52 mA
Maximale Leistung: Pi = 64 mW 169 mW Pi = 64 mW 169 mW
Innere Induktivität: Li = 0.15 mH 0.15 mH Li = 0.1 mH 0.1 mH
Innere Kapazität: Ci = 150nF 150nF Ci = 30nF 30nF
8.7.1 Limit switches option /K1 ... /K10 (/FS1 for USA)
Data of limit switches (FM-approval):
The limit switches are intrinsically safe devices. They are certied by Pepperl & Fuchs for:
Intrinsically safe : Cl. I, Div. 1, GP. A, B, C, D T6 Ta=60°C
Cl. II, Div. 1, GP. E, F, G
Cl. III, Div. 1
Non incendive: Cl. I, Div. 2, GP. A, B, C, D T5 Ta=50°C
Cl. II, Div. 1, GP. E, F, G
Cl. III, Div. 1
Maximum Entity Field Wiring Parameters :
see FM-control drawing 116-0165 on page 8-11 and 8-12 for intrinsic safety
see FM-control drawing 116-0155 on page 8-13 for non incendive
8.7.2 Limit switches option /K1 ... /K10 (/CS1 for Canada)
Data of limit switches (CSA-approval):
The limit switches are intrinsically safe devices. They are certied by Pepperl & Fuchs for:
Intrinsically safe : Cl. I, Div. 1, GP. A, B, C, D
Cl. II, Div. 1, GP. E, F, G
Cl. III, Div. 1
Maximum Entity Field Wiring Parameters :
see CSA drawing 116-0047 on page 8-14 and 8-15
Only in combination with power supply option /WxA or /WxB.
IM 01R01B30-00E-E 5th edition January 01, 2013 -00
Dieses Dokument enthält sicherheitsrelevante Angaben. Es darf nicht ohne Absprache mit dem Normenfachmann geändert werden!
This document cont ains safety-relevant information. It must not be altered without the authorization of the norm expert!
Confidential according to ISO 16016 Only valid as long as releas ed in EDM or with a valid production documentation! scale: 1:1 date: 2010-jun-03
respons. US.DRL
approved US.DW R
116-0165F
Twinsburg
Control Drawing
NAMUR SENSORS – FM
change notice
150- 1915
normUS.GAPsheet 1 of 8
HAZARDOUS (CLASSIFIED) LOCATION NONHAZARDOUS LOCATION
Class I, Division 1, Groups A, B, C, D
Class II, Division 1, Groups E, F, G
Class III, Division 1
or
Class I, Zone 0, Groups IIC T6 (Ta = 60ºC)
Notes:
1. For installation in a Division 1 hazardous (classified) location, the wiring must be
in accordance with the National Electrical Code, NFPA 70, Article 504. For installation in a Zone 0
hazardous (classified) location, the wiring must be in accordance with the National Electrical Code,
NFPA 70, Article 505. For additional information refer to ISA RP-12.6.
2. The Entity Concept allows interconnection of intrinsically safe and associated
apparatus not specifically examined in combination as a system when the approved values of Voc ( or
Uo) and Isc (or Io) for the associated apparatus are less than or equal to Vmax (or Ui) and Imax (or Ii)
for the intrinsically safe apparatus and the approved values of Ca (or Co) and La (or Lo) for the
associated apparatus are greater than Ci + Ccable, Li + Lcable, respectively for the intrinsically safe
apparatus.
3. Barriers shall not be connected to any device that uses or generates in excess of 250V rms or DC
unless it has been determined that the voltage is adequately isolated from the barrier.
4. Note associated apparatus with only Zone 1 approved connections limits the mounting of the
sensors to Zone 1.
5. ‘a’ in model number indicates option not affecting safety.
6. NAMUR sensors are also nonincendive for Class I, Division 2, Groups A,B,C, and D; Class II, Division 1,
Groups E,F, and G; Class III, Division 1; Class I, Zone 2, Groups IIC, IIB, IIA T5 hazardous (classified)
locations and need not be connected to an associated apparatus when installed in accordance with
Control Drawing 116-0155.
7. The correlation between type of connected circuit, maximum permissible ambient temperature and
temperature class are indicated at the top of each Table.
8. Model number NMB8-SAE16GM27-N1-FE-V1 approved for Class I, Division 1, Groups C and D T4 (Ta
= 85ºC). See Table 12.
9. Warning - Equipment with non-metallic enclosures shall not be installed in a location where the external
conditions are conducive to the build-up of electrostatic charge on such surfaces. The equipment shall
only be cleaned with a damp cloth.
Pepperl+Fuchs, Inc. “NAMUR”
output proximity sensor. See Tables
for entity parameters
Any FM certified a
ssociated apparatus
with applicable division and group or
zone and group approval and with entity
parameters:
DIVISIONS
ZONES
Voc ≤ Vmax Uo ≤ Ui
Isc ≤ Imax Io ≤ Ii
Ca ≥ Ci+Ccable Co ≥ Ci+Ccable
La ≥ Li+Lcable Lo ≥ Li+Lcable
IM 01R01B30-00E-E 5th edition January 01, 2013 -00
8-12
Dieses Dokument enthält sicherheitsrelevante Angaben. Es darf nicht ohne Absprache mit dem Normenfachmann geändert werden!
This document contains safety-relevant information. It must not be altered without the authorization of the norm expert!
Confidential according to ISO 16016 Only valid as long as released in EDM or with a valid production documentation! scale: 1:1 date: 2010-jun-03
respons. US.DRL
approved US.DWR
116-0165F
Twinsburg
Control Drawing
NAMUR SENSORS – FM
change notice
150- 1915
normUS.GAPsheet 7 of 8
NJ 15-30GM-N...
140 100 76 91 100 73 88 100 62 77 81 54 63 63
NJ 25-50-N...
150 140 73 88 100 69 84 100 51 66 80 39 54 61
NJ 20-40-N...
140 140 73 88 100 69 84 100 51 66 80 39 54 61
Table 10 – INDUCTIVE RING SENSORS
Typ 1 Typ 2 Typ 3 Typ 4
Ui = 16 V Ui = 16 V Ui = 16 V Ui = 16 V
Ii = 25 mA Ii = 25 mA Ii = 52 mA Ii = 76 mA
Pi = 34 mW Pi = 64 mW Pi = 169 mW Pi = 242 mW
Typ 1 Typ 2 Typ 3 Typ 4
Ui = 16 V Ui = 16 V Ui = 16 V Ui = 16 V
Ii = 25 mA Ii = 25 mA Ii = 52 mA Ii = 76 mA
Pi = 34 mW Pi = 64 mW Pi = 169 mW Pi = 242 mW
Ambient temperature : -25°C ... +65 °C
Safety relevant maximum values of electronic transmitter :
Maximum voltage : Ui = 30 V
Maximum current : Ii = 100mA
Maximum power : Pi = 750 mW
Inner inductance : Li = 0.73 mH
Inner capacity : Ci = 2.4nF
Pulse output:
Maximum voltage : Ui= 16 V
Maximum current : Ii = 20 mA
Maximum power : Pi = 64 mW
Inner inductance : Li = 0 mH
Inner capacity : Ci = 0nF
Data of limit switches option /K1 to /K10 :
The following table shows the maximum safety parameters for intrinsic safe limit switches according the certicate
NEPSI GYJ06542X :
Standard
/K1 ... /K3
Type 2Type 3Type 2Type 3
Ui [V]16161616
Ii [mA]25522552
Pi [mW]6416964169
Li [µH]150150250250
Ci [nF]1501505050
Max. ambient temperature for T6 [°C]66456645
Max. ambient temperature for T5 [°C]81608160
Max. ambient temperature for T4-T1 [°C]1008910089
Fail Safe
/K6 ... /K10
IM 01R01B30-00E-E 5th edition January 01, 2013 -00
The contents of this appendix are cited from exida.com safety manual on the Rotameter RAKD Flowmeter
specically observed for the safety transmitter purpose. When using the RAKD for Safety Instrumented
Systems (SIS) application, the instructions and procedures in this section must be strictly followed in order
to preserve the meter for that safety level.
A1.1 Scope and Purpose
This document provides an overview of the user responsibilities for installation and operation of the Rota
Yokogawa RAKD variable area ow meter in order to maintain the designed safety level. Items that will be
addressed are proof testing, repair and replacement of the ow meter, reliability data, lifetime, environmental
and application limits, and parameter settings.
A1.2 Using RAKD for a SIS Application
A1.2.1 Safety Function
Suitable for use in Safety Instrumented Systems are the versions listed in table 1 only. The safety related
data listed in this manual does not apply to other versions of RAKD.
[V1]RAKD standard – RAKD[][] - [][]SS - [][]NNN - T8[]NNN
[V2]RAKD with head/valve– RAKD[][] - [][]SS - [][]V[][] - T8[]NNN
Table 1 Versions of RAKD suitable for Safety Instrumented Systems
This variable area ow meter is intended for use as a volume ow monitoring component in a Safety
Instrumented System. It has inductive limit switches. The ow meter may be used with the limit switches to
feed signals to a logic solver that is part of the safety instrumented function (SIF) as shown in Figure 1. The
fault annunciation mechanism is a trip of one of the limit switches. In order to take credit for the automatic
diagnostics in the ow meter, this annunciation mechanism must be connected.
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A1-2
<A1. SAFETY INSTRUMENTED SYSTEMS INSTALLATION>
A1.2.2 Diagnostic Response Time
In case of a fault the limit switches will go to their safe fail state immediately.
A1.2.3 Setup
A setup of the ow meter is not required. Installation shall be done according to the manual.
A1.2.4 Proof Testing
The objective of proof testing is to detect failures within the ow meter that are not detected by the
diagnostics of the ow meter. Of main concern are undetected failures that prevent the safety instrumented
function from performing its intended function.
The frequency of the proof tests (or the proof test interval) is to be determined in the reliability calculations
for the safety instrumented functions for which the ow meter is applied. The actual proof tests must be
performed more frequently or as frequently as specied in the calculation in order to maintain required
safety integrity of the safety instrumented function.
The following tests need to be specically executed when a proof test is performed. The results of the proof
test need to be documented and this documentation should be part of a plant safety management system.
Failures that are detected should be reported to Yokogawa.
Proof test for variable area ow meter RAKD with inductive limit switches:
StepAction
1
2
3
4
5
6
When all the tests listed above are executed a proof test coverage of approximately 99% of possible DU
failures in the variable area ow meter RAKD can be claimed.
The following tools need to be available to perform proof testing:
Measurement instrument to verify output status of the limit switches
The person(s) performing the proof test of the Yokogawa RAKD variable area ow meter should be trained
in SIS operations including bypass procedures, ow meter maintenance and company management of
change procedures.
Take appropriate action to avoid a false trip
Inspect the device for any visible damage, corrosion or contamination.
Force the variable area ow meter RAKD to reach a dened “MAX” threshold value and
verify that the inductive limit switch goes into the safe state.
Note: only applicable if RAKD is equipped with a “MAX” limit switch.
Force the variable area ow meter RAKD to reach a dened “MIN” threshold value and
verify that the inductive limit switch goes into the safe state.
Note: only applicable if RAKD is equipped with a “MIN” limit switch.
Restore the loop to full operation
Restore normal operation
A1.2.5 Repair and replacement
Maintenance information can be found in section 6, Maintenance of the User’s Manual Model RAKD Small
Metal ROTAMETER, IM 01R01B30-00E-E.
If repair is to be performed with the process online the Rota Yokogawa RAKD variable area ow meter will
need to be bypassed during the repair. The user should setup appropriate bypass procedures for that.
Contact the Yokogawa sales office if this instrument requires repair
The person(s) performing the repair and / or replacement of the Rota Yokogawa RAKD variable area ow
meter should have a sufficient skill level.
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The ow meter will generate a valid signal within 0.5 seconds of power-on startup.
A1.2.7 Reliability data
A detailed Failure Mode, Effects, and Diagnostics Analysis (FMEDA) report is available from Rota Yokogawa
with all failure rates and failure modes. Rota Yokogawa RAKD variable area ow meter is intended for use
in a Low Demand Mode. Low Demand Mode means the average interval between dangerous conditions
occurs infrequently.
The Rota Yokogawa RAKD variable area ow meter is certied up to SIL2 for use in a simplex (1oo1)
conguration, depending on the PFD
calculation of the entire Safety Instrumented Function.
AVG
A1.2.8 Lifetime limits
The expected lifetime of the Yokogawa Rota Yokogawa RAKD variable area ow meter is 10 years. The
reliability data listed in 2.7 is only valid for this period. The failure rates of the Rota Yokogawa RAKD variable
area ow meter may increase sometime after this period. Reliability calculations based on the data listed in
A1.2.7 for Rota Yokogawa RAKD variable area ow meter lifetimes beyond 10 years may yield results that
are too optimistic, i.e. the calculated Safety Integrity Level will not be achieved.
A1.2.9 Environmental limits
The environmental limits of Rota Yokogawa RAKD variable area ow meter are specied in the User’s
Manual, Model RAKD Small Metal ROTAMETER, IM 01R01B30-00E-E.
A1.2.10 Application limits
The application limits of the Rota Yokogawa RAKD variable area ow meter are specied in the User’s
Manual, Model RAKD Small Metal ROTAMETER, IM 01R01B30-00E-E. If the ow meter is used outside of
the application limits the reliability data listed in A1.2.7 becomes invalid.
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A1-4
<A1. SAFETY INSTRUMENTED SYSTEMS INSTALLATION>
A1.3 Denitions and Abbreviations
A1.3.1 Denitions
Safety Freedom from unacceptable risk of harm
Functional Safety The ability of a system to carry out the actions necessary to achieve or to
maintain a dened safe state for the equipment / machinery / plant /
apparatus under control of the system
Basic Safety The equipment must be designed and manufactured such that it protects
against risk of damage to persons by electrical shock and other hazards and
against resulting re and explosion. The protection must be effective under all
conditions of the nominal operation and under single fault condition
Verication The demonstration for each phase of the life-cycle that the (output)
deliverables of the phase meet the objectives and requirements specied
by the inputs to the phase. The verication is usually executed by analysis
and / or testing
Validation The demonstration that the safety-related system(s) or the combination of
safety-related system(s) and external risk reduction facilities meet, in all
respects, the Safety Requirements Specication. The validation is usually
executed by testing
Safety Assessment The investigation to arrive at a judgment - based on evidence - of the safety
achieved by safety-related systems
Further denitions of terms used for safety techniques and measures and the description of safety related
systems are given in IEC 61508-4.
A1.3.2 Abbreviations
FMEDA Failure Mode, Effects and Diagnostic Analysis
SIF Safety Instrumented Function
SIL Safety Integrity Level
SIS Safety Instrumented System
SLC Safety Lifecycle
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The following results have been obtained from the assessment report Report No.: ROTA YOKOGAWA
08/07-23
Average PFD values have been calculated assuming a Diagnostic Coverage (DC) of 99%, a mission time
of 10 years and a Mean Time To Restoration of 24 hours.
Table 2: Summary for RAKD ([V1]) with fail-safe limit switches 3 – Failure rates
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Yokogawa has an extensive sales and
distribution network.
Please refer to the European website
(www.yokogawa.com/eu) to contact your
nearest representative.
Euroweg 2
3825 HD AMERSFOORT
The Netherlands
www.yokogawa.com/eu
YOKOGAWA ELECTRIC CORPORATION
World Headquarters
9-32, Nakacho 2-chome, Musashino-shi
Tokyo 180-8750
Japan
www.yokogawa.com
YOKOGAWA CORPORATION OF AMERICA
2 Dart Road
Newnan GA 30265
USA
www.yokogawa.com/us
YOKOGAWA ELECTRIC ASIA Pte. LTD.
5 Bedok South Road
Singapore 469270
Singapore
www.yokogawa.com/sg
YOKOGAWA CHINA CO. LTD.
3F Tower D Cartelo Crocodile Building
No.568 West Tianshan Road Changing District
Shanghai, China
www.yokogawa.com/cn
YOKOGAWA MIDDLE EAST B.S.C.(c)
P. O. Box 10070, Manama
Building 577, Road 2516, Busaiteen 225
Muharraq, Bahrain
www.yokogawa.com/bh
RotameterTM is a trademark of Rota Yokogawa GmbH & Co. KG, a subsidiary of Yokogawa Electric Corporation, Japan.
In the United Kingdom Rotameter
IM 01R01B30-00E-E 5th edition January 01, 2013 -00