UWT Rotonivo RN 4000 Series User manual

page G
Level limit switch
Series RN 4000
Technical information / Instruction manual
Table of contents
Page
Safety notes / Technical support G2
---------------------------------------------------------------------------------------------------------
Introduction G3
---------------------------------------------------------------------------------------------------------
Function G4
---------------------------------------------------------------------------------------------------------
Technical data G5
---------------------------------------------------------------------------------------------------------
Approvals G7
---------------------------------------------------------------------------------------------------------
Options G8
---------------------------------------------------------------------------------------------------------
Mounting G9
---------------------------------------------------------------------------------------------------------
Electrical installation G10
---------------------------------------------------------------------------------------------------------
Signal and Alarm output G13
---------------------------------------------------------------------------------------------------------
Settings / Maintenance G15
---------------------------------------------------------------------------------------------------------
Notes for use in Hazardous Locations G16
Subject to technical change We assume no liability for typing errors.
All dimensions in mm (inches). Different variations than specied are possible.
Please contact our technical consultants.
RN 4000 gi010114 1
Rotonivo®1
2
3
4
5
6
7
8
9
10
11
12

page G
Level limit switch
Series RN 4000
Technical information / Instruction manual
Safety notes / Technical support
Notes
• Installation, maintenance and commissioning must be carried out only by qualied technical personnel.
• The product must be used only in the manner outlined in this instruction manual.
Special attention must be paid to warnings and notes as follows:
Safety symbols
Technical support
Please contact your local supplier (address details at www.uwt.de). Otherwise please contact:
UWT GmbH Tel. [phone]
Westendstr. 5 Fax. [phone]
87488 Betzigau [email protected]
Germany www.uwt.de
In manual and on
product
Description
CAUTION: refer to accompanying documents (manual) for details.
Earth (ground) Terminal
Protective Conductor Terminal
WARNING
Relates to a caution symbol on the product: A failure to observe the necessary
precautions can result in death, serious injury and/or considerable material damage.
WARNING
Relates to a caution symbol on the product: Risk of electric shock
WARNING
A failure to observe the necessary precautions can result in death, serious injury
and/or considerable material damage.
This symbol is used, when there is no corresponding caution symbol on the product.
CAUTION A failure to observe the necessary precautions can result in considerable material
damage.
Rotonivo®
1
2
3
4
5
6
7
8
9
10
11
12
RN 4000
gi010114
2
1
2
3
4
5
6
7
8
9
10
11
12

page G
Level limit switch
Series RN 4000
Technical information / Instruction manual
The ROTONIVO is an electromechanical Level limit switch and
is used for level monitoring of bulk goods.
The units can be delivered with Ex-approvals for use in
Hazardous Areas.
Selected applications:
• buildingmaterialsindustry
lime, styrofoam, moulding sand, etc.
• plasticsindustry
plastics granules etc.
• timberindustry
• chemicalindustry
• mechanicalengineering
The ROTONIVO is normally screwed into the lateral container
wall so that it is level with the lling height to be registered and
monitored.
The device can also be mounted from the top of the container. In
this case an extension piece is used to mount the probe level with
the height to be registered (full detector).
Applications
Introduction
RN 4000 gi010114 3
Rotonivo®1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12

page G
Level limit switch
Series RN 4000
Technical information / Instruction manual
Function
A brushless synchronous motor drives a rotating measuring
vane.
When the material level reaches the measuring vane, it is
handicapped in its rotation. The motor is freely suspended
within the housing. The caused reaction torque is used to
operate a micro switch giving a signal output and to stop the
motor (gure 2).
When the paddle becomes free again due to falling material
level, a spring draws the motor back into his operating position,
the micro switch returns to his initial position and the motor is
switched on. The output signal is switched back (gure 1).
Signaloutputdelay:
The version "universal voltage" and "PNP" has an integrated
adjustable delay for the signal output.
Optionfailsafealarm
With the fail safe alarm it is possible to recognize a fault of the
unit in time and to initiate an alarm relay. The following faults are
observed:
• Motor
• Gear
• Electronic for motor power supply
• Supply voltage failure
• Defect of the connecting wires
UmschaltbareSicherheitschaltungFSH/FSL:
Bei Ausführung "Allspannung", "PNP" und optional bei "AC" ist
eine umschaltbare Sicherheitsschaltung FSH/FSL integriert.
Figure 1
Microswitch for
signal output
Switching
part
Microswitch for
motorstop
Figure 2
Electronics
Supply
Signaloutput
FSH/
FSL(2)
Adjust.
delay
Fail safe
alarm
AC version 24V or 48V or
115V or 230V AC •-option - -
DC version 24VDC •- - - -
DC version 24VDC PNP - • • • -
Universal
voltage 24VDC /22..230V AC •-• • option
(1) Micro switch, Relais for universal voltage
(2) Switchable signal output (Fail safe high /low)
Rotonivo®
1
2
3
4
5
6
7
8
9
10
11
12
RN 4000
gi010114
4

page G
Level limit switch
Series RN 4000
Technical information / Instruction manual
Technical Data
Measuring vanes
extension "L"
code A
boot shaped vane 40x98
to lead in 1½“ socket
(length of socket
max. 40mm (1.57”))
to lead in 1¼ “ socket
(length of socket
max. 40mm (1.57”))
code D
boot shaped vane 35x106
to lead in 1“ or
M32x1.5 socket
(Socket length
max. 40mm (1.57"))
Insertion of the hinged vane through a long socket
spring
code R
boot shaped vane 28x98
code U
universal vane
(plastics)
cuttable in
case of need
Material process
connection:
* aluminum
** plastics
code S
hinged vane 98x100 single sided
code K
hinged vane 98x200 double
sided
b=37mm (1,46")
for 1½“ / 1¼“
b=28mm (1,1")
for 1" / M32x1,5
b=37mm (1,46")
für 1½“ / 1¼“
b=28mm (1,1")
for 1" / M32x1,5
code J
boot shaped vane 26x77
to lead in M30
socket (Socket
length max.
40mm (1.57"))
RN 4000 gi010114 5
Rotonivo®1
2
3
4
5
6
7
8
9
10
11
12

page G
Level limit switch
Series RN 4000
Technical information / Instruction manual
Mechanical data
Housing Plastics PA6 GF, RAL 5010 gentian blue
Degreeofprotection IP 66 (EN 60529)
Process connection Aluminium or plastics PA6 GF
Thread: Metric or G (DIN 228) according to selection
Vaneshaftand
measuringvane
Material: stainless steel 1.4301 (304) / 1.4305 (303),
Universal vane in plastics PP
Tolerancelength"L“ ± 10mm (± 0.39“)
Bearing Process connection aluminium: ball bearing, dust tight
Process connection plastics: slide bearing (maintenance-free, high-quality)
Sealing Radial rotary shaft sealing. Material: NBR (Acrylnitril-Butadien-rubber)
Friction clutch Protects the gear unit against impacts of the measuring vane
Speedofmeasuringvane 1 rotation or 5 rotations per minute
Technical Data
Electrical data
Connectionterminals max. 1.5mm2(AWG 16)
Cable entry M20 x 1,5 screwed cable gland
Protection class I
III (Version 24V DC PNP)
Overvoltagecategory II
Pollutiondegree 2
Power supply see page G12
Installedload see page G12
Signalandalarmoutput see page G12
Isolation Power to signal and alarm output: 2225 Vrms
Indicatinglight By built-in LED (not with AC version)
Rotonivo®
1
2
3
4
5
6
7
8
9
10
11
12
RN 4000
gi010114
6

page G
Level limit switch
Series RN 4000
Technical information / Instruction manual
Operating conditions
Ambienttemp.(housing) -20 .. +60°C (-4 .. +140°F)
-40 .. +60°C (-40 .. +140°F) Version with heating of housing (pos. 26)
Processtemperature -20 .. + 80°C (-4 .. +176°F)
-40 .. +80°C (-40 .. +176°F) Version with heating of housing (pos. 26)
Min.powderdensity/
Sensitivity
see section “Sensitivity” on page G14.
Signaldelay Version AC, DC, Multivoltage Universal voltage
Sensor free -> covered* ca. 1.3 sec ca. 1,5 sec + 0 ..20 sec adjustable
Sensor covered -> free ca. 0.2 sec ca. 0,2 sec + 0 ..60 sec adjustable
*after blocking of the measuring vane
Featuresofbulkmaterial Hardly any limitations.
Max.permittedmechanical
torque(lateral)
Process connection aluminium: max. 50 Nm
Process connection plastics: max. 25 Nm
Protective measures in case of high loading: mounting of an protective canopy above the probe.
Max.tractiveforce Pendulum shaft: 400N (applicable only as full detector)
Rope extension: 1,5kN (applicable only as full detector)
Max. process pressure -0,5 .. +0,8bar (-6.8 .. 11.6psi)
Versions with Ex-approvals: see remarks on page G15.
RelativeHumidity 0-100%, suitable for outdoor use
Altitude max. 2.000m (6.562ft)
TechnicalData/Approvals
* Depending on selected version
Non-hazardous Locations CE EN 61010-1 (IEC/CB)
GOST-R
Hazardous Locations * ATE X
IEC-Ex
RTN Ex
INMETRO
Dust explosion
Dust explosion
Dust explosion
Dust explosion
ATEX II 1/2 D Ex t IIIC T! Da/Db IP6X
IEC-Ex t IIIC T! Da/Db IP6X
Ex t IIIC T! Da/Db IP6X
EMC EN 61326 -A1
RoHS conform According to directive 2011/65/EU
Pressure Equipment
Directive (97/23/EC)
The units are not subject to this directive, because they are classied as „pressure-keeping
equipment“ and do not have a pressurized housing (see Art.1, clause 2.1.4).
The units are designed and manufactured in accordance to the Pressure Equipment Directive.
The unit is NOT intended for use as a "equipment part with safety function" (Art.1, clause 2.1.3).
If the units should be used as "equipment part with safety function", please contact the
manufacturer.
Approvals
RN 4000 gi010114 7
Rotonivo®1
2
3
4
5
6
7
8
9
10
11
12

page G
Level limit switch
Series RN 4000
Technical information / Instruction manual
Weather protection
cover
If the measuring device is used outdoors, the use of the
weather-protection-cover is recommended. It protects the
device from all atmospheric inuences such as:
• rain water
• condensation water
• excessively high temperatures due to insolation
• excessively low temperatures in winter
Material: PE, weather and temperature stable
For use in Hazardous Locations:
only permitted for zone 22
Flatgasket On the face sealing of the process connection thread.
Incl. sealing face for version with process connection G 1
1/2" thread aluminium.
Options
Rope extension Pendulumshaft
Extensions
(Kits, application only as full detector)
Rope xing
1.4305/303
Rope 1.4401/316
for L=2m
Rope weight
1.4305/303
End part
Rope extension
1.4305/303
Shaft for
L=500, with
drilled holes
also for
L=300 and
400 mm
alternative:
shaft for
L=1000 with
drilled holes
also for
L= 600, 700,
800 and 900
mm
If necessary the shaft can be cutted
approx. 10 to 15mm below the required
hole.
Spring
1.4301
The rope can
be cutted in
case of need
Rotonivo®
1
2
3
4
5
6
7
8
9
10
11
12
RN 4000
gi010114
8

page G
Level limit switch
Series RN 4000
Technical information / Instruction manual
Mounting
Process pressure Improper installation may result in loss of process pressure.
Chemicalresistance
againstthemedium
Materials of construction are choosen based on their chemical compatibility (or inertness) for
general purposes. For exposure to specic environments, check with chemical compatibility
charts before installing.
Mechanicalload The torque at the fastening spot must not exceed the specied ratings. See page G7 for details.
Mountinglocation Keep away from incoming material and from silo walls.
The installation has to be carried out, that the sensor elements cannot hit the wall of the silo. The
ow of the medium and xtures in the container must be considered.
General Safety Instructions
Additional Safety Instructions for Hazardous Locations
Installationregulations For devices to be used in Hazardous Locations the respective valid installation regulations must
be observed.
Rotatablehousing The housing can be rotated against the threaded connection after mounting.
Directionofthecableglands When the unit is mounted from the side, ensure, that the cable glands face downwards and are
closed to avoid water penetration into the housing.
Sealing Seal the process connection thread with Teon tape or a at gasket against process pressure.
Precaution for later
dismounting
Use teon tape to avoid seizing of aluminium process connection thread with the socket
Mounting instructions
A Full detector vertical and oblique from the top
B Full detector horizontal
C Demand or empty detector horizontal
Protective angle recommended, depending on load
D Empty detector oblique from the bottom
Protective angle recommended, depending on load
Horizontal mounting (except full detector) : Boot shaped vane
recommended (min. mech. load, because the vane aligns to the
movement of the material).
Mounting
RN 4000 gi010114 9
Rotonivo®1
2
3
4
5
6
7
8
9
10
11
12

page G
Level limit switch
Series RN 4000
Technical information / Instruction manual
Mounting/ElectricalInstallation
max. tractive
force.400N
max. tractive
force.1,5kN
General Safety Instructions
E With pendulum shaft: Full detector vertical from the top
Observe max. tractive force.
F With rope extension: Full detector vertical from the top
Observe max. tractive force.
Electrical Installation
Handling In the case of improper handling or handling malpractice, the electric safety of the device cannot be
guaranteed.
Installationregulations The local regulations or VDE 0100 (Regulations of German Electrotechnical Engineers) must be
observed.
Version 24V DC PNP (Protection class III): The Isolation of the connected power supply and the signal
output must cope with the regulations.
Fuse Use a fuse as stated in the connection diagrams (see pages G12).
RCCB protection In the case of a fault, the supply voltage must be automatically switched off by a RCCB protection
switch to protect against indirect contact with dangerous voltages.
Power supply switch A voltage disconnection switch must be provided near the device.
Wiringdiagram The electrical connections are made in accordance with the wiring diagram.
Supplyvoltage Compare the supply voltage applied with the specications given on the electronic module and name
plate before switching the device on.
Cablegland The screwed cable gland and closing element must have following specications:
Ingress protection IP66, temperature range from -40°C to +70°C, UL or VDE certied (depending on
the country where the unit is installed), pull relief.
Make sure that the screwed cable gland safely seals the cable and that it is tight (danger of water
intrusion).
Cable glands that are not used have to be sealed with a blanking element.
Fieldwiringcables All eld wirings must have insulation suitable for at least 250V AC. The temperature rating must be at
least 90°C (194°F).
Microswitch protection Provide protection for microswitch contacts to protect the device against inductive load surges.
Protectionagainststatic
charging
The housing of the unit must be grounded to avoid static charging of the unit. This is particularly
important for applications with pneumatic conveying and non-metallic containers.
Rotonivo®
1
2
3
4
5
6
7
8
9
10
11
12
RN 4000
gi010114
10

page G
Level limit switch
Series RN 4000
Technical information / Instruction manual
Electrical installation
Extenal equipotential
bondingterminal
Fieldwiring A strain relief must be provided for the eld wiring cables, when the device is installed with the
factory provided cable glands.
Cableglandsfor
ATEX / IEC-Ex
Installation according to the regulations of the country, where the product is installed.
Not used entries have to be closed with blanking elements certied for this purpose.
Where applicable the factory provided parts must be used.
A strain relief must be provided for the eld wiring cables, when the device is installed with the
factory
provided cable glands.
The diameter of the eld wiring cable must match to the clamping range of the cable clamp.
If other than the factory provided parts are used, following must be ensured:
The parts must have an approval adequate to the approval of the level sensor (certicate and type of
protection).
The approved temperature range must be from the min. ambient temperature of the level sensor to
the max. ambient temperature of the level sensor increased by 10K.
The parts must be mounted according to the instructions of the supplier.
Commissioning Commissioning only with closed lid.
Openingthelid Before opening the lid take care, that no dust deposits or whirlings are present.
Do not remove the lid (cover) while circuits are alive.
Additional Safety Instructions for Hazardous Locations
Connection
Connecting
terminals
Connect to equipotential
bonding of the plant
RN 4000 gi010114 11
Rotonivo®1
2
3
4
5
6
7
8
9
10
11
12

page G
Level limit switch
Series RN 4000
Technical information / Instruction manual
*Protectionagainststaticcharge:
The PE terminal of the unit must be grounded to avoid static charging of the unit.
This is particularly important for applications with pneumatic conveying.
Electrical installation
Version:
- AC
- DC
-Universalvoltage
Power supply:
•ACversion:
24V or 48V or 115V or 230V 50/60Hz max. 4VA
All voltages ±10% (1)
Supply voltage as selected.
External fuse: max 10A, fast or slow, HBC, 250V
•DCversion:
24V DC ±15% (1) max. 2.5W
External fuse: not required
•Universalvoltage:
24V DC ±15% (1) max.4W
22 .. 230V 50/60Hz ±10% (1) max.10VA
External fuse: not required
(1) including ±10% of EN 61010
Signal and alarm output:
Micro switch or relay, SPDT contact
max. 250V AC, 2A, 500VA (cosj= 1)
max. 300V DC, 2A, 60W
External fuse: max 10A, fast or slow, HBC, 250V
Version:
- PNP
Power supply:
24V DC ±15% (1)
(1) including ±10% of EN 61010
Input current: max. 0.6A
Signal output:
Load max.0.4A
Output voltage equal to input voltage, drop <2,5V
Open collector
Protected against short circuit and overload
max.1.5mm²
(AWG16)
L N PE*
+ -
Power supply
Signal
output
Alarm
output (2)
(2) With option Fail safe
alarm (rotation control)
Contact open when de-energised
+ - Load PE*
Power
supply
max.1.5mm²
(AWG16)
Rotonivo®
1
2
3
4
5
6
7
8
9
10
11
12
RN 4000
gi010114
12
*

page G
Level limit switch
Series RN 4000
Technical information / Instruction manual
LED
Signalandalarmoutput
Overview
Signaloutput:
Switchinglogic
VersionswithoutFSH/FSL
VersionswithFSH/FSL
Factory setting: FSL
FSH: Set in case of using the sensor as a full detector.
Power failure or line break is regarded as „full“ signal (protection against overlling).
FSL: Set in case of using the sensor as an empty detector.
Power failure or line break is regarded as „empty“ signal (protection against running dry).
greenyellow
yellowgreen
Power
failure
DC
red
Overview of signal and alarm output for the different electronics versions: see page G4
RN 4000 gi010114 13
Rotonivo®1
2
3
4
5
6
7
8
9
10
11
12

page G
Level limit switch
Series RN 4000
Technical information / Instruction manual
Signalandalarmoutput
Signaloutput:
Delay
Sensor covered -> free
Factory setting = 3 sec
Sensor free -> covered
Factory setting = 1 sec
Alarmoutput
(Fail safe alarm)
Switchingandtimingbehaviour:
If the sensor is not covered, the rotating paddle shaft will send pulses at 20 sec
intervals. In case of fault, the pulses are missed. After 30 sec the alarm relay will open.
Signal output
Connectionexample:
Full detector with maximum safety:
The output signal opens in case of:
• full signal or
• failure of supply voltage or
• defect of the connection wires or
• defective unit
LED
yellow or green
(see page before) red
No fault Fault
Rotonivo®
1
2
3
4
5
6
7
8
9
10
11
12
RN 4000
gi010114
14

page G
Level limit switch
Series RN 4000
Technical information / Instruction manual
Adjustmentof
thespring
The spring is adjustable in 3 positions. It should be changed only if necessary.
„Fine“: for light material
„Medium“: suitable for nearly every material (factory setting)
„Coarse“: for very sticky material
The spring can be changed via a small plier.
ne medium coarse
Spring
Vane
*Minimum density in g/l = kg/m³ (lb/ft³) (without guarantee)
Vane completely covered with bulk
material Bulk material covers vane up to 100mm (3.93“)
Spring adjustment Spring adjustment
ne medium
(Factory setting) ne medium (Factory setting)
Boot shaped vane 40x98 200 (12) 300 (18) 100 (60) 150 (9)
Boot shaped vane 35x106 200 (12) 300 (18) 100 (60) 150 (9)
Boot shaped vane 28x98 300 (18) 500 (30) 150 (9) 200 (12)
Boot shaped vane 26x77 350 (21) 560 (33) 200 (12) 250 (15)
Hinged vane 98x200 b=37 double sided 70 (4.2) 100 (60) 35 (2.16) 50 (3)
Hinged vane 98x200 b=28 double sided 100 (60) 150 (9) 50 (3) 75 (4.5)
Hinged vane 98x100 b=37 single sided 200 (12) 300 (18) 100 (60) 150 (9)
Hinged vane 98x100 b=28 single sided 300 (18) 500 (30) 150 (9) 250 (15)
The table shows approximate values for the minimum densities, at which a normal function should be possible.
Sensitivity
The above mentioned data is a guideline and is for loose, non compacted material.
During the lling the bulk density can change (e. g. for uidised material).
*For versions with option 26 (heating of housing) the above mentioned data must be multipied by 1.5.
Maintenance
Generally the device requires no maintenance.
Settings:Sensitivity/Maintenance
RN 4000 gi010114 15
Rotonivo®1
2
3
4
5
6
7
8
9
10
11
12

page G
Level limit switch
Series RN 4000
Technical information / Instruction manual
Zone classication
Useable in zone ATEX
Category
IEC-Ex
Equipement
ProtectionLevel
(EPL)
Dust applications 20, 21, 22 1 D Da
21, 22 2 D Db
22 3 D * Dc
General Notes
Marking Devices with Ex approval are marked on name plate.
Process pressure
for ATEX / IEC-Ex
The device construction allows process over-pressure upto 0.8 bar (11.6 psi). These pressures are
allowed for test purposes. The denition of the ATEX and IEC-Ex is only valid for a container-over-
pressure between -0.2..+0.1 bar (-2.9..+1.45psi).
For higher or lower pressures the approval is not valid.
Processandambient
temperature
The permitted temperature ranges are marked on the name plate.
Permitted zones for mounting in partition wall
EPL (IEC-Ex) Db
Category (ATEX) 2D
Zone 21
EPL (IEC-Ex) Da
Category (ATEX) 1D
Zone 20
Max. Surface Temperature and Temperature Code
The temperature marking on the name plate refers to the instruction manual.
In the following tables the relevant temperature ratings are shown.
The maximum surface temperature (resp. temperature class) is the warmest temperature of the unit which could occur during
malfunction (according to Ex-denition).
Max. ambient
temperature
Max. process
temperature
Max. surface
temperature
Temperature
class
40°C (104°F) 60°C (140°F) 100°C (212°F)
120°C (248°F) (1)
T5
T4 (1)
50°C (122°F) 70°C (158°F) 110°C (230°F)
120°C (248°F) (1) T4
60°C (140°F) 80°C (176°F) 120°C (248°F) T4
(1) With use of electronic "Universal voltage"
ambient area
process area
* in case of conductive dust
additional requirements for the
installation are necessary.
NotesforuseinHazardousLocations
Rotonivo®
1
2
3
4
5
6
7
8
9
10
11
12
RN 4000
gi010114
16