UWT Capanivo CN 7000 Series User manual

Level limit switch
Series CN 7000 - Relais DC and 8/16mA
Technical Information / Instruction manual
page
Table of contents
Page
Safety notes / Technical support 2
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Introduction 3
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Technical data Electrical data 4
Dimensions 6
Mechanical data 10
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Options/ Accessories 12
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Operating conditions 13
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Approvals 15
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Installation Mechanical installation 16
Electrical installation 22
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Notes for use in Hazardous Locations 29
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Operation Operating elemens / LED's 34
Factory calibration 35
Recalibration 36
Advanced calibration 37
Advanced possibilities 41
WHG Proof Test 43
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Troubeshooting 45
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Transport and Storage 46
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Maintenance 47
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Probe modications 48
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Disposal 48
Subject to technical change. We assume no liability for typing errors.
Different variations than specied are possible.
Please contact our technical consultants.
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CN 7000 gi060821 1

Level limit switch
Series CN 7000 - Relais DC and 8/16mA
Technical Information / Instruction manual
page
Safety notes / Technical support
Notes
• Installation, maintenance and commissioning may be accomplished 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
In manual and on
product
Description
CAUTION: refer to accompanying documents (manual) for details.
Earth (ground) Terminal
Protective Conductor Terminal
Technical support
Please contact your local supplier (for address see www.uwt.de). Otherwise you can contact:
UWT GmbH Tel.: [phone]
Westendstr. 5 Fax: [phone]
D-87488 Betzigau [email protected]
Germany www.uwtgroup.com
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.
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CN 7000
gi060821
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Level limit switch
Series CN 7000 - Relais DC and 8/16mA
Technical Information / Instruction manual
page
Introduction
The Capanivo series CN 7000 is a capacitance switch for:
• Level detection of liquids, solids (powder and granules), slurries and foam.
• Interface detection (for example, oil / water or foam / liquid)
It works in all types of vessels, pipes and silos within a wide range of appliations like:
• Food, brewery, dairy, beverage and pharmaceuticals
• Chemical and petrochemical
• Water and waste water
• Machine building industry
It can also be used for leckage detection in double walled vessels, tanks and silos or in
moldings and collecting ponds.
Applications
Measurement
principle
The Capanivo series CN 7000 detects the capacitance around its probe. Due to the active
shield technology it has an increased insensitivity to material buildup on the probe.
Features
Process • Measurement independent from inuence of the vessel wall
• Factory provided precalibration allows measurement of most applications without
sensitivity setting on site
• Active shield electrode for compensation of material buildup
• Potted construction protects from shock, vibration, humidity, condensation
• Dielectric constant of 1.5 or more
• Process temperature up to 125°C
• Intrinsically Safe (IS) design for Hazardous areas (requires external barrier)
• Approvals CE, ATEX, IEC-Ex, FM, CSA, INMETRO, TR-CU, KC, WHG
Electronics • 4-wire DC with Relais signal output
• 2-wire 8/16 mA
• 4-20mA continuous mode
(4mA = uncovered probe, 20mA = probe covered with high dielectric material)
• Terminal or M12 connection
• Sensitivity setting by potentiometer, including visual feedback via LED
• Remote Test with external signal conditioning instrument
Mechanics • Corrosion resistant construction with enclosure made of thermoplastic polyester,
wetted parts made of PPS, PVDF, PEEK and 316L stainless steel
• Compact probe lenght
• Pipe extension (max. 4m), optional sliding sleeve allows to change the switch point
easily during operation of the device
• Cable extension (max. 20m), cuttable by user
• Various process connections: threaded (including G½“ hygienic), anged (screwed)
or Tri-clamp
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CN 7000 gi060821 3

Level limit switch
Series CN 7000 - Relais DC and 8/16mA
Technical Information / Instruction manual
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Technical data
Electrical data
Standard version
(General Purpose)
Power supply /
signal output
4-wire operation with DC supply and relay
Supply:
9 - 33 V DC, 0.7W incl. 10% of EN 61010-1
Signal output:
Relay SPST
Max. switching voltage: 60 V DC or 30 V AC;
Limted to 35 V DC or 16 V AC in wet locations
Max. switching current / switching power: 1 A / 60 W
2-wire operation with 8/16 mA loop
9 - 33 V DC, 0.7W incl. 10% of EN 61010-1
8/16 mA
Tolerance: 8mA +/-0,5mA, 16mA -1mA/+2mA
If required, the unit can be set to 4-20mA continuous current output
(direct output of the measured capacitance).
The stated voltage is the resulting voltage on the unit. Any voltage drop on an
external series resistance must be considered.
Intrinsically safe version
Power supply /
signal output
2-wire operation with 8/16 mA loop
10.8 - 30 V DC, 0.7W incl. 10% of EN 61010-1
8/16 mA or 16/8 mA
Tolerance: 8mA +/-0,5mA, 16mA -1mA/+2mA
Intrinsically safe barrier or signal conditioning instrument required:
Ui=30 V Ii=160 mA Pi=0,8 W, Ci=7,6 nF Li =0,3 mH
If required, the unit can be set to 4-20mA continuous current output
(direct output of the measured capacitance).
The stated voltage is the resulting voltage on the unit. Any voltage drop on an
external series resistance must be considered.
4-wire operation with DC supply and solid state relay
This operation is only available for CN 7120/7121 with enclosure Ø65mm and connection via
terminal block (Solid state relay integrated).
Supply:
10.8 - 30 V DC, 0.7W incl. 10% von EN 61010-1
Intrinsically safe barrier required:
Ui=30 V Ii=160 mA Pi=0,8 W, Ci=7,6 nF Li =0,3 mH
Signal output::
Solid state relay
Max. switching voltage / current: 30 V DC / 82mA
For connection to an intrinsically safe "switch amplier for contact input"
or to an intrinsically safe PLC with integrated input card for contact input.
Ui=30 V Ii=200 mA Pi=350 mW, Ci=4,2 nF Li=0
The power supply circuit is infallibly galvanically isolated from the transistor circuit.
Safety operation
(FSL,FSH)
Selectable for minimum or maximum safety by polarity of power supply voltage
Signal delay Probe uncovered -> covered ca. 0.5 sec
Probe covered -> uncovered ca. 0.5 sec
Indicating light Build in LEDs:
Power (green), Signal output (yellow), Sensor status / Diagnostics (white)
Sensitivity Adjustable by potentiometer
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CN 7000
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Level limit switch
Series CN 7000 - Relais DC and 8/16mA
Technical Information / Instruction manual
page
Power
supply
applied
Loop current /mA 1 or 2:
Diagnostics test is o.k.
Measurement signal is present:
- Loop current = 8 or 16mA
- Relay = open or closed (depending on setted
output logic, see page 26)
3:
Diagnostics test failed:
- Loop current <=3,6mA
- Relay = open
sec
Technical data
Electrical connection With enclosure Ø65mm:
Terminal block, terminals 0.14 - 1.5 mm2 (AWG 28-16)
With enclosure Ø65mm and Ø35mm:
M12x1 according to IEC 61076-2-101, male, 4-pole, coding A-standard
Cable entry With enclosure Ø65mm:
M20 x 1.5 screwed cable gland
Clamping range (diameter) of factory provided cable glands: 6..12 mm (0.24 .. 0.47")
or
NPT 1/2“ conduit
Overvoltage category II
Protection class III
Diagnostics / Remote funtion test
The units starts a self diagnostics routine when the power supply is applied or interrupted for >2 seconds.
The loop current shows following behavior, which can be evaluated by an external signal conditioning instrument
(accessory) or by a PLC:
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Level limit switch
Series CN 7000 - Relais DC and 8/16mA
Technical Information / Instruction manual
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Technical data
Dimensions
CN 7120 - Short extension length
Enclosure
Ø65mm
Top view
G 1/2" hygienic
All dimensions in mm (inch)
G 1/2" hygienic
Top view
Stainless steel process connection
Top view
Top view
Enclosure
Ø35mm
Enclosure
Ø35mm
Enclosure
Ø65mm
see
next
page
see
next
page
CN 7121 - Short extension length
see next
page
G 1/2" G 3/4" G 1"
NPT 3/4"
G 1/2" G 3/4" G 1"
NPT 3/4"
1.4404 (316L)
Probe
PEEK
1.4404 (316L)
Probe
PPS/PVDF
1.4404 (316L)
Probe
PEEK
1.4404 (316L)
Probe
PPS/PVDF
PPS/PVDF
Plastic process connection
Probe
PPS/PVDF
Probe
PPS/PVDF
PPS/PVDF
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CN 7000
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Level limit switch
Series CN 7000 - Relais DC and 8/16mA
Technical Information / Instruction manual
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Technical data
CN 7130 - Pipe extension
CN 7150 - Cable extension
CN 7130 CN 7150
1.4404
(316L)
1/2" NPT
conduit
M20x1,5
cable gland
M12
plug
Top view
see
below
Enclosure
Ø65mm
Possible wiring
see
below
* G 3/4" not
available with PPS
process connection
PPS
PPS
Probe
PPS
1.4404 (316L)
/PPS
FEP
Probe
PPS/PVDF
1.4404 (316L)
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Level limit switch
Series CN 7000 - Relais DC and 8/16mA
Technical Information / Instruction manual
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Technical data
Tri-clamp
Flange is screwed to
process connection
To Top: Enclosure Ø65mm: 131 (5.2) Enclosure Ø35mm: 110 (4.3)
Tri-clamp ØD
DN 25 (1") 50,5 (1.99")
DN 40 (1 1/2")
DN 50 (2") 64 (2.52")
Flange
Type Facing
thickness
ASME 150 lbs
ASME 300 lbs 2 mm (0.08")
Raised face
Facing thickness
Code Type Number
of holes
d2
mm (Inch)
Lk
mm (Inch)
D
mm (Inch)
T
thickness
mm (Inch)
ASME B16.5,
raised face
R 1" 150 lbs 4 15,9 (0.63) 79,3 (3.12) 108,0 (4.25) 14,3 (0.56)
S 1" 300 lbs 4 19,1 (0.75) 88,9 (3.5) 123,8 (4.87) 17,5 (0.69)
T 1½" 150 lbs 4 15,9 (0.63) 98,6 (3.88) 127,0 (5.0) 17,5 (0.69)
U 1½" 300 lbs 4 22,2 (0.87) 114,3 (4.5) 155,6 (6.13) 20,6 (0.81)
V 2" 150 lbs 4 19,1 (0.75) 120,7 (4.75) 152,4 (6.01) 19,1 (0.75)
W 2" 300 lbs 819,1 (0.75) 127,0 (5.0) 165,1 (6.5) 22,2 (0.87)
EN 1092-1
type A, at
faced
NDN25
PN16/40 4 14,0 (0.55) 85,0 (3.35) 115,0 (4.53) 18,0 (0.71)
P
DN40
PN16/40
418,0 (0.71) 110,0 (4.33) 150,0 (5.91) 18,0 (0.71)
QDN50
PN16/25/40 418,0 (0.71) 125,0 (4.92) 165,0 (6.5) 18,0 (0.71)
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Level limit switch
Series CN 7000 - Relais DC and 8/16mA
Technical Information / Instruction manual
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Technical data
CN 7120 - G 1/2" hygienic process connection / EHEDG approval
Flush welding
socket:
Design Detail A:
Sealing area between CN 7120
(PEEK) and the on site process
connection (metal)
Metal type according to hygienic
and further external requirements.
CN 7120
process
connection
Metal
1.4404 (316L)
PEEK
FDA registration number:
21 CFR 177.2415
The ush welding socket must meet the following design:
see Detail A
Flush welding
socket:
Installation
Metal-peek sealing
• The support must be plane and without any
gap. No teon tape (or similar) is allowed to
be in between.
• Fixing torque 30 Nm
The quality of the welding with the
container wall must be according to
the respective regulations (e.g. gaps,
transitions, surface nish).
leackage
borehole
(optional)
EHEDG approval is available with CN7120 with process connection G 1/2" hygienic
EHEDG
versions
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Level limit switch
Series CN 7000 - Relais DC and 8/16mA
Technical Information / Instruction manual
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Mechanical data
Process connection
and extension
CN 7120 - Stainless steel process connection, version G 1/2" Hygienic:
Material process connection: 1.4404 (316L)
Material probe: PEEK
(1,2)
Seal process connection-probe: FKM (optional FFKM) (2)
Thread (3): G 1/2" Hygienic
Wetted sensor surface: Ra ≤ 0.8 μm (31 μin)
Hygienic design: EHEDG
CN 7120 - Stainless steel process connection:
Material process connection: 1.4404 (316L)
Material probe: PPS (glass bre reinforced) (1,2)
Optional PVDF
(1,2)
Seal process connection-probe: FKM (optional FFKM) (2)
Thread (3): G 1/2", G 3/4", G 1“, NPT 3/4"
Adapters for G 1 1/2", NPT 1 1/4", NPT 1 1/2"
Tri-clamp DN25 (1"), DN40 (1 1/2"), DN50 (2")
DIN 32676 Type A (DIN 11851) and
DIN 32676 Type C (ASME BPE 2009)
Flange (screwed) (4) DN 25, 40, 50; ASME 1", 1 1/2”, 2"
CN 7121 -Plastic process connection:
Material process connection: PPS (glass bre reinforced) (1, 2)
Optional PVDF
(1,2)
Material probe: PPS (glass bre reinforced) (1,2)
Optional PVDF
(1,2)
Seal process connection-probe: FKM (optional FFKM) (2)
Thread (3): G 1“, NPT 3/4"
CN 7130 - Pipe extension:
Material process connection: 1.4404 (316L)
Material pipe extension: 1.4404 (316L)
Material probe: PPS (glass bre reinforced) (1,2)
Optional PVDF
(1,2)
Seal pipe-probe: FKM (optional FFKM) (2)
Thread (3): G 3/4", G 1“, NPT 3/4"
Adapters for G 1 1/2", NPT 1 1/4", NPT 1 1/2"
Flange (screwed) (4) DN 25, 40, 50; ASME 1", 1 1/2”, 2"
CN 7150 - Cable extension, with process connection 1.4404 (316L):
Material process connection: 1.4404 (316L)
Material extension cable: FEP jacketed
Material probe and extention cable xing:
PPS (glass bre reinforced) (1,2)
Seal process connection- extension cable:
FKM (optional FFKM)
(2)
Seal extension cable- probe: FKM (optional FFKM) (2)
Thread
(3): G 3/4", G 1“, NPT 3/4"
Adapters for G 1 1/2", NPT 1 1/4", NPT 1 1/2"
Flange (screwed) (4) DN 25, 40, 50; ASME 1", 1 1/2”, 2"
Technical data
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