Version: 13
Edition:
Art. no.: 207194
Technical Documentation
VISY-X
VISY Probes
FAFNIR GmbH • Schnackenburgallee 149 c • 22525 Hamburg, Germany • T.: +49 / 40 / 39 82 07-0 • F.: +49 / 40 / 390 63 39
2019-02
Table of contents
1 Introduction ............................................................................................... 1
1.1 Related documentation ............................................................................................................................ 2
1.2 Requirements for service engineers .................................................................................................... 3
1.3 Safety instructions ...................................................................................................................................... 3
2 Versions of the VISY-X system ................................................................ 4
2.1 Wired version ............................................................................................................................................... 4
2.2 Wireless version / radio system ............................................................................................................. 4
3 Level Sensors ............................................................................................. 5
3.1 Design and function .................................................................................................................................. 5
3.2 Installation Method .................................................................................................................................... 6
3.3 Types................................................................................................................................................................ 6
3.3.1 VISY-Stick / Biodiesel / E15 ..................................................................................................................... 7
3.3.2 VISY-Stick Advanced / Advanced Biodiesel / Advanced E15 ..................................................... 8
3.3.3 VISY-Stick Ethanol ...................................................................................................................................... 9
3.3.4 VISY-Stick Advanced Ethanol .............................................................................................................. 10
3.3.5 VISY-Stick N for AdBlue® urea solution ......................................................................................... 11
3.3.6 VISY-Stick Flex / Flex Biodiesel / Flex E15 ....................................................................................... 12
3.3.7 VISY-Stick LPG ........................................................................................................................................... 13
3.3.8 VISY-Density (LPG) module .................................................................................................................. 13
4 Environmental sensors ........................................................................... 14
4.1 Types............................................................................................................................................................. 14
4.1.1 VISY-Stick Interstitial .............................................................................................................................. 15
4.1.2 VISY-Reed Interstitial Dry ..................................................................................................................... 16
4.1.3 VISY-Stick Sump Manhole / Dispenser ............................................................................................ 17
4.1.4 VISY-Reed Sump Manhole / Dispenser ........................................................................................... 18
4.1.5 VISY-Stick Oil Separator ........................................................................................................................ 19
5 Installation ............................................................................................... 20
5.1 Installation and safety instructions ................................................................................................... 20
5.2 Variants ........................................................................................................................................................ 21
5.2.1 Installation with screw-in unit ............................................................................................................. 22
5.2.2 Riser installation ....................................................................................................................................... 23
5.2.3 Installing VISY-Stick N and VISY-Stick LPG without installation kit ...................................... 24
5.2.4 Installation of VISY-Stick Flex .............................................................................................................. 25
I Table of Contents
5.2.5 Sensor replacement instructions........................................................................................................ 26
© Copyright:
Reproduction and translation are permitted only with the written consent of the FAFNIR GmbH. The FAFNIR GmbH
reserves the right to make product alterations without prior notice.
5.2.6 Installation kit for VISY-Stick Sump .................................................................................................. 26
5.2.7 Variable LPG installation kit for liquid gas containers ............................................................... 27
5.2.8 1" installation kit ...................................................................................................................................... 28
5.3 Electrical connection ............................................................................................................................... 29
5.3.1 Voltage surge protection ...................................................................................................................... 30
5.4 Installation offset ..................................................................................................................................... 31
6 Maintenance ............................................................................................ 32
6.1 Servicing ...................................................................................................................................................... 32
6.2 Return shipment ....................................................................................................................................... 32
7 List of figures ........................................................................................... 32
8 List of tables ............................................................................................. 32
9 Annex ........................................................................................................ 33
9.1 VISY-Stick .................................................................................................................................................... 33
9.1.1 EC Declaration of Conformity ............................................................................................................. 33
9.1.2 EU-Type Examination Certificate ........................................................................................................ 34
9.1.3 Instructions ................................................................................................................................................. 40
9.2 VISY-Reed ................................................................................................................................................... 47
9.2.1 EC Declaration of Conformity ............................................................................................................. 47
9.2.2 EU-Type Examination Certificate ........................................................................................................ 48
1. Supplement ........................................................................................................................................... 50
9.2.3 Instructions ................................................................................................................................................. 52
9.3 Technical Data ........................................................................................................................................... 55
Table of contents II
1 Introduction
The VISY-X system (Volume Information SYstem) provides highly precise and continuous level
measurements for all commercially available fuels in up to 16 tanks. Simultaneously the product
temperature and the water level at the bottom of the tank are measured.
The system includes:
• VISY-Command (central unit)
• VISY-Setup (software application) for configuring the VISY-Command
• VISY-Stick (filling-level sensors) for tank gauging in the versions:
VISY-Stick, VISY-Stick Advanced, VISY-Stick Advanced with VISY-Density Module,
VISY-Stick Flex, VISY-Stick LPG (liquefied petroleum gas), …
In addition, following environmental sensors can also be operated with the VISY-X System:
− VISY-Stick Sump for monitoring the manhole or the dispenser sump with the distinc-
tion between product and water
− VISY-Reed Sump for monitoring the manhole or the dispenser sump without a dis-
tinction between liquids
− VISY-Stick Interstitial (with adjustable measuring range) for monitoring the interme-
diate chamber in double-walled tanks
− VISY-Reed Interstitial (with fixed measuring points) for monitoring the intermediate
chamber in double-walled tanks
− VIMS Sensors (VIMS-Tank, VIMS-Product Pipe, VIMS-Delivery Pipe) for monitoring
the intermediate chamber in double-walled tanks, filling lines and product lines from
our system partner SBG GmbH, see chapter 1.1
− COMS (Continuous Oil Separator Monitoring System) with VISY-Stick Oil Separa-
tor and VISY-Sludge probes for monitoring the oil and sludge layer in oil separators,
see chapter 1.1
− VPS for monitoring pressure, see chapter 1.1
The sensors can be installed easily both using the screw-in unit with external thread and through
a pipe installation (riser). The sensors may be operated in potentially explosive areas including
Zone 0.
In this manual, you are guided through installation and commissioning of the VISY-Stick and
VISY-Reed Sensors. This manual contains a description of all steps needed to perform the installation.
Page 1/55 Introduction
1.1 Related documentation
The VISY probes have to be connected with the VISY-Command central unit which is mounted
inside the petrol station building. Before operating, the VISY-Command must be configured using a PC or notebook and the VISY-Setup software application. The VISY-Command collects data
from the sensors and transmits this to a higher-level system (e.g. POS) on request. Please follow
the instructions in the following technical documentation:
VISY-Command VI-4, art. no. 207184
VISY-Setup V4…, art. no. 207158
For the installation and commissioning of the VIMS sensors please contact:
SGB GmbH, Hofstraße 10, 57076 Siegen, Germany
T.: +49 271 48964–0, F.: +49 271 48964-6, E.: sgb@sgb.de
The VISY-SoftView software application is used for the display module in the VISY-Command
GUI and in the VISY-View Touch. VISY-SoftView provides the capability to view current tank data,
delivery data and the various alarms signalled by the VISY-Command central unit. For configuration and operation of the display module with VISY-SoftView, see the following technical
documentation:
VISY-SoftView User Guide, art. no. 350026
VISY-SoftView Administrator, art. no. 350144
The probes VISY-Stick Oil Separator and VISY-Sludge are used for monitoring of oil separators
(COMS Continuous Oil Separator Monitoring). The sensor VISY-Stick Oil Separator continuously monitors the height of the light-liquid layer, VISY-Sludge continuously monitors the height
of the sludge layer. For installation and operation see the following technical documentation:
COMS Technical data (multilingual), art. no. 350273
COMS Installation Quick Guide, art. no. 350240
COMS oil layer table, art. no. 350007
VISY-SoftView Oil separator, art. no. 350193
The VPS sensor is suitable for the monitoring of hydrostatic pressures. The sensor continuously
monitors the pressure of a liquid column. For installation and operation see the following technical documentation:
VPS pressure sensor, art. no. 350204
Introduction Page 2/55
1.2 Requirements for service engineers
The complete VISY-X system should only be installed by trained service engineers.
1.3 Safety instructions
The VISY-X system is optimised for use in petrol stations and is compatible with all commercially
available fuels. It serves to measure and evaluate the filling levels in tanks. The system must be
used exclusively for this purpose. Observe and follow all product safety notes and operating
instructions. The manufacturer accepts no liability for any form of damage resulting from improper use.
The level and environmental sensors have been developed, manufactured and tested in accordance with the latest good engineering practices and generally accepted safety standards.
Nevertheless, hazards may arise from their use.
The following safety precautions must be observed in order to reduce the risk of injury, electric
shocks, fire or damage to the equipment:
• Do not change or modify the system or add any equipment without the prior consent
of the manufacturer.
• Only use original parts. These comply with the technical requirements specified by the
manufacturer.
• The installation, operation and servicing of the sensors and the VISY-Command must
solely be carried out by expert personnel.
• Operators, installers and service technicians must observe all applicable safety regula-
tions. This also applies to any local safety and accident prevention regulations which
are not stated in this manual.
• The product may be powered only via the permissible auxiliary power supply.
The safety instructions in this user guide are marked as follows:
If these safety instructions are not observed, it may result in the risk of accident or
damage to the VISY-X system.
Useful tips and information in this user guide you should observe, appear in italics
and are identified by this symbol.
Page 3/55 Introduction
2 Versions of the VISY-X system
Two versions of the VISY-X system are available which differ in different data transmission technology:
(1) The wired version
(2) The wireless version / radio system
2.1 Wired version
In most cases, data is transferred between the sensors and the VISY-Command central unit via
cable. This cable is also in charge of the voltage supply of the sensors. The wired version of the
VISY-X system is the standard version.
2.2 Wireless version / radio system
If no free cable ducts are available at the petrol station, it is possible to instead opt for the
wireless tank gauging system. In this case, the benefit of installing the wireless system is that it
does not entail any excavation work.
In the wireless system, the sensors are connected to a transmitter and powered by a battery.
The radio version of the central unit is equipped with a receiving module.
The radio system consists of the additional components:
• VISY-RFR (radio frequency receiver, receiver installed in VISY-Command … RF)
• VISY-RFT (radio frequency transmitter, transmitter with battery)
The installation procedure for the wireless system is described in the following technical documentation:
VISY-RF III radio system, art. no. 350272
Versions of the VISY-X system Page 4/55
1 – Probe head
①
②
⑨
⑩
3 Level Sensors
3.1 Design and function
The sensors consist of a probe head (1) and a probe tube (4) made of stainless steel. The probe
tube is fitted in the tank with a screw-in unit (3) for height adjustment. For riser installation, the
screw-in unit is not required. A float (5) for measuring the product filling level and an additional
float (6) for continuous water detection move on this probe tube. In the case of products having
a density greater than 0.9 kg/l, water detection cannot take place and the water float must be
removed.
③
④
⑤
⑥
⑦
⑧
⑩
Figure 1: Mode of operation of the magnetostrictive measuring principle
The sensor operates according to the magnetostrictive measuring principle. The probe tube
contains a wire (7) made of magnetostrictive material. The sensor electronics (2) transmits
pulses through the wire, which generate a circular magnetic field (8). Permanent magnets (9)
are used as filling level sensors which are installed in both the product float (5) and the water
float (6). The magnetic fields of the float magnets (9) axially magnetises the wire in this area.
Due to the overlapping of the two magnetic fields, a torsion pulse (10), which runs in both directions through the wire from the float position, is created in the area of the float magnets.
One torsion pulse runs directly to the probe head and the other one is reflected at the bottom
end of the probe tube. The time between the current pulse being transmitted and the two torsion pulses arriving at the probe head is measured and the float position calculated. The
position of the water float is calculated by measuring a second pulse.
2 – Sensor electronics
3 – Screw-in unit
4 – Probe tube
5 – Product float
6 – Water float
7 – Magnetostrictive wire
8 – Circular magnetic field
9 – Permanent magnet
10 – Torsion pulse
Page 5/55 Level Sensors
3.2 Installation Method
Depending on the installation method, the sensors can be delivered in the following versions:
• for the Riser installation
• with screw-in unit for mounting on the tank lid
3.3 Types
The following level sensors then are described:
• VISY-Stick / Biodiesel / E15
• VISY-Stick Advanced / Advanced Biodiesel / Advanced E15
• VISY-Stick Ethanol
• VISY-Stick Advanced Ethanol
• VISY-Stick N for AdBlue®:
• VISY-Stick Flex / Flex Biodiesel / Flex E15
• VISY-Stick LPG
• VISY-Stick Advanced with VISY-Density Module
Level Sensors Page 6/55
3.3.1 VISY-Stick / Biodiesel / E15
Riser installation
Installation with screw-in unit
M12 coupling
Dimensions in mm
Probe length
Probe length
Ø 47.2
appr. 123
Ø 47.2
appr. 123
The VISY-Stick level sensor is designed for level measurement of petrol and diesel fuels. A special
version is available for biodiesel or E15 (petrol-ethanol mixture with 0 … 15 % Ethanol). The sensor is available for riser installation and for installation with screw-in unit.
1 brown +
2 white A
3 blue –
4 black B
Equipotential bonding
connection
Probe head
Riser installation kit
(centring aid 3”/4”)
Screw-in unit R1½, AF
55, brass
Probe tube
∅ 12
Figure 2: VISY-Stick / Biodiesel / E15
Page 7/55 Level Sensors
Product float
∅ 43 x 43
Water float
∅ 43
Circlip
3.3.2 VISY-Stick Advanced / Advanced Biodiesel / Advanced E15
Installation with screw-in
unit and R2 reducer
Riser installation
M12 coupling
Dimensions in mm
Probe length
Probe length
Ø 47.2
appr. 123
Ø 47.2
appr. 123
The sensor VISY-Stick Advanced is equipped with a higher measuring accuracy than VISY-Stick.
It is designed for the level measurement of petrol and diesel fuels. A special version is available
for biodiesel or E15 (petrol-ethanol mixture with 0 … 15 % Ethanol). The sensor is available for
riser installation and for installation with screw-in unit.
1 brown +
2 white A
3 blue –
4 black B
Equipotential bonding
connection
Probe head
Riser installation kit
(centring aid 3”/4”)
Screw-in unit R1½, AF 55,
brass
Reduction R2,
steel
Probe tube
∅ 12
Figure 3: VISY-Stick Advanced
Level Sensors Page 8/55
Product float
∅ 54 x 31
Water float
∅ 43 x 62
Circlip
Installation with screw-in unit
Riser installation
M12 coupling
Dimensions in mm
Probe length
Probe length
Ø 47.2
appr. 123
Ø 47.2
appr. 123
3.3.3 VISY-Stick Ethanol
The sensor VISY-Stick Ethanol is designed for the level measurement of petrol-ethanol mixtures
having an ethanol-content of more than 15 %. The sensor is available for riser installation and
for installation with screw-in unit.
1 brown +
2 white A
3 blue –
4 black B
Equipotential bonding
connection
Probe head
Riser installation kit
(centring aid 3”/4”)
Screw-in unit R1½, AF
55, brass
Probe tube
∅ 12
Figure 4: VISY-Stick Ethanol
Page 9/55 Level Sensors
Product float
∅ 43 x 43
Circlip
3.3.4 VISY-Stick Advanced Ethanol
Dimensions in mm
M12 coupling
Probe length
Probe length
Riser installation
appr.
47.2
appr.
47.2
Installation with screw-in
unit and R2 reducer
The sensor VISY-Stick Advanced Ethanol is equipped with a higher measuring accuracy than
VISY-Stick Ethanol. It is designed for the level measurement of petrol-ethanol mixtures having
an ethanol-content of more than 15 %. The sensor is available for riser installation and for installation with screw-in unit.
∅
∅
1 brown +
2 white A
3 blue –
4 black B
Equipotential bonding
connection
Probe head
Riser installation kit
(centring aid 3”/4”)
Screw-in unit R1½, AF
55, brass
Reduction R2,
steel
Probe tube
∅ 12
Product float
∅ 54 x 31
Spacer
Circlip
Figure 5: VISY-Stick Advanced Ethanol
Level Sensors Page 10/55
3.3.5 VISY-Stick N for AdBlue® urea solution
M12 coupling
Probe length
appr. 123
47.2
The sensor VISY-Stick N is designed for the level measurement of AdBlue®.
∅
1 brown +
2 white A
3 blue –
4 black B
Equipotential bonding connection
Probe head
Compression fitting / cutting ring fitting
G 3/8, stainless steel
Reducer R1½,
stainless steel
Probe tube
∅ 12
Product float, ∅ 43 x 43
Circlip
Dimensions in mm
Figure 6: VISY-Stick N for AdBlue® urea solution
Page 11/55 Level Sensors
Probe length
appr. 123
47.2
43
120
Adjusting range
M12 coupling
34
3.3.6 VISY-Stick Flex / Flex Biodiesel / Flex E15
The level sensor VISY-Stick Flex is a VISY-Stick with flexible probe tube. The magnetic base at
the lower end of the probe tube keeps the sensor attached to the tank bottom after installation. The sensor installation is possible only with screw-in unit.
∅
1 brown +
2 white A
3 blue –
4 black B
Equipotential bonding connection
Probe head
Screw-in unit R1½, SW 55, stainless steel
Probe tube ∅ 12, stainless steel
(500 mm)
Corrugated hose ∅ 12, stainless steel
Probe tube ∅ 12, stainless steel
(500 mm)
Product float, ∅ 43 x 43
Water float, ∅ 43
Weight, stainless steel
∅
∅
Figure 7: VISY-Stick Flex
Level Sensors Page 12/55
Magnetic base
Dimensions in mm
3.3.7 VISY-Stick LPG
M12 coupling
Probe length
Ø 47.2
appr. 123
The sensor VISY-Stick LPG is designed for the level measurement of liquefied petroleum gas
(LPG).
1 brown +
2 white A
3 blue –
4 black B
Equipotential bonding connection
Probe head
Cutting ring fitting,
¾ "or ½" NPT, stainless steel
Option: Reducer, 1½" NPT
Probe tube, ∅ 12
Product float ∅ 40 x 120
or ∅ 30 x 45
Circlip
Figure 8: VISY-Stick LPG
Dimensions in mm
3.3.8 VISY-Density (LPG) module
See Technical Documentation VISY-Density (LPG), Art. No. 350213
Page 13/55 Level Sensors
4 Environmental sensors
The environmental sensors include the
• VISY-Stick Interstitial for the leakage detection of tanks
• VISY-Stick Sump for the detection of liquids in the manhole or in the dispenser sump
with freely selectable alarm threshold
• VISY-Reed for the detection of liquids in the manhole or in the dispenser sump with a
fixed alarm threshold
• VIMS sensors for leakage detection of tanks (VIMS tank),
leakage detection of product lines to the fuel dispensers (VIMS product pipe) or
leakage detection of filling lines to the tanks (VIMS delivery pipe)
The VISY-Stick sensors operate according to the magnetostrictive measurement principle (see
chapter 3.1), the VISY-Reed sensors have a reed contact with switching function.
For more information on the VIMS sensors, please contact our system partner: SGB GmbH,
Siegen, Germany, (see chapter 1.1).
4.1 Types
The following environmental sensors then are described:
• VISY-Stick Interstitial
• VISY-Reed Interstitial Dry
• VISY-Stick Sump Manhole / Sump Dispenser
• VISY-Reed Sump Manhole / Sump Dispenser
• VISY-Stick Oil Separator
Environmental sensors Page 14/55
4.1.1 VISY-Stick Interstitial
Dimensions in mm
Probe length
Probe length
M12 coupling
Riser installation
Installation with screw-in unit
Ø 47.2
appr. 123
Ø 47.2
appr. 123
The sensor VISY-Stick Interstitial is designed for monitoring the leak-detection fluid (salt brine,
glycol, etc.) in the intermediate chambers of double-walled tanks. It reports over- and undershooting of adjustable thresholds. VISY-Stick Interstitial can be used as a "dry sensor" which
detects the penetration of a liquid into the intermediate chambers of double-walled tanks. The
sensor is available for riser installation and for installation with screw-in unit.
1 brown +
2 white A
3 blue –
4 black B
Equipotential bonding
connection
Probe head
Riser installation kit
(centring aid 3”/4”)
Screw-in unit R1½, AF
55, brass
Probe tube
∅ 12
Product float
∅ 43 x 43
Circlip
Figure 9: VISY-Stick Interstitial
Page 15/55 Environmental sensors
4.1.2 VISY-Reed Interstitial Dry
Cable length 5000 mm
Dimensions in mm
appr. 48
125
The sensor VISY-Reed Interstitial Dry is designed for monitoring dry intermediate chambers of
double-walled tanks. The reed contact indicates the penetration of a liquid into the dry space.
White marking
Four (4) wire cable
brown +
white A
blue –
black B
Cable gland,
brass nickel-plated
Housing,
brass nickel-plated
Figure 10: VISY-Reed Interstitial Dry
Probe tube,
stainless steel
Float, stainless steel
Environmental sensors Page 16/55
M12 coupler
Ø 47.2
Ø 65
appr. 105
60
425
4.1.3 VISY-Stick Sump Manhole / Dispenser
The sensor VISY-Stick Sump is designed for monitoring the manhole (Manhole version) and the
sump underneath the dispenser (Dispenser version). The sensor detects fluids that could potentially accumulate in the sump and is capable to distinguish between water and fuel. The sensor
is tamper-proofed. For the mounting an installation kit is available (art. no. 910036).
1 brown +
2 white A
3 blue –
4 black B
Equipotential bonding connection
Probe head & marking:
• blue for VISY-Stick Sump Manhole
• red for VISY-Stick Sump Dispenser
Tamper protection
Dimensions in mm
Figure 11: VISY-Stick Sump
Page 17/55 Environmental sensors
4.1.4 VISY-Reed Sump Manhole / Dispenser
Cable length 2000 mm
Ø 60
125
The sensor VISY-Reed Sump is designed for monitoring the manhole (Manhole version) and the
sump underneath the dispenser (Dispenser version) if distinction of liquids is not required. The
sensor detects liquids that may accumulate in the sumps. The float switch is used as a pure alarm
switch.
Marking:
• blue for VISY-Reed Sump Manhole
• red for VISY-Reed Sump Dispenser
Four (4) wire cable
brown +
white A
blue –
black B
Cable gland, brass nickel-plated
Housing, brass nickel-plated
Figure 12: VISY-Reed Sump
Probe tube, stainless steel
Float, stainless steel
Dimensions in mm
Environmental sensors Page 18/55
Installation on the side wall of the oil separator
Ø 47.2
appr. 123
Probe length
M12 coupler
Dimensions in mm
42
4.1.5 VISY-Stick Oil Separator
The sensor VISY-Stick Oil Separator is suitable for monitoring the oil layer in oil separators. The
sensor continuously detects the height of the light-liquid layer and gives an alarm when a configurable threshold is reached.
1 brown +
2 white A
3 blue –
4 black B
Equipotential bonding connection
Probe head
Probe tube
Ø 12x1
Screw-in unit
M16x1.5
Nut
M16x1.5
Angle bracket
Spacer
Interface float
Ø 55x14
Spacer
Circlip
Figure 13: VISY-Stick Oil Separator
Page 19/55 Environmental sensors
5 Installation
5.1 Installation and safety instructions
For the installation and maintenance of the sensors, the requirements of the Explo-
sion Protection Regulations, the Industrial Health and Safety Regulations and the
Equipment Safety Regulations as well as generally accepted rules of engineering
and this manual must be observed.
All applicable local safety and accident prevention regulations not included in this
manual must also be observed.
During the assembly, it is important to make sure that the probe tube is not bent.
Protect the floats from knocks at all times. No moisture may enter the M12 connector.
Before installation move the supplied floats to the bottom end of the probe tube,
otherwise they will slip down suddenly when you erect the sensors and could be
damaged when striking the circlip.
During the installation, following data of the VISY-Stick sensors, tanks, and prod-
ucts are to be noted for configuring the VISY-Command:
- Device numbers of the sensors,
- Tank assignments of the sensors,
- Tank assignments of the products,
- Terminal connection of the sensors in the VISY-Command,
- Sensor distances from the central vertical axes of the tanks (see Chapter 5.4)
For identification purposes, the probe heads of the various model types are
wrapped in a coloured net, which must be removed prior to installation. The
probes are associated with the following colours:
VISY-Stick N for AdBlue®: blue
VISY-Stick Interstitial: brown
VISY-Stick LPG: yellow
VISY-Stick Biodiesel: green
VISY-Stick Ethanol (>15%): orange
VISY-Stick E15 (0-15 %): white
VISY-Stick / Advanced / Flex / VISY-Reed / VISY-Sump without net
Installation Page 20/55
5.2 Variants
Riser installation
Installation with
Screw-in unit
Connection cable
Safety distance
Sealing cap with
cable gland
Equipotential cable
Riser installation kit
Screw-in unit
Figure 14: VISY-Stick installation with riser and screw-in unit
Page 21/55 Installation
5.2.1 Installation with screw-in unit
For installation of the VISY-Stick sensor, the tank coupling must have an internal thread of at
least 1½"; for the VISY-Stick Advanced sensor, it must have an internal thread of at least 2".
The procedure for installing sensors with screw-in unit (see Figure 14) is described below. For
tank pipe couplings with an internal thread larger than 1½", reducers of the appropriate size
will also be required:
(1) Check that the circlip on the end of the probe tube is securely attached so that the float
is unable to fall into the tank.
(2) The floats must be pushed onto the probe tube with the marking “TOP” facing the
probe head.
(3) Use a hexagon socket key (5 mm) to loosen the locking screw and stuffing box (SW 30)
so that the screw-in unit can be moved easily on the probe tube.
(4) Provide the screw-in unit with suitable sealing material and then screw it into the tank
coupling together with the VISY-Stick.
(5) Press the probe tube gently onto the bottom of the tank and then lift it again to incor-
porate an appropriate safety distance. To fix the probe tube, first tighten the stuffing
box and then tighten the locking screw.
If there is no safety distance between the probe tube and the bottom of the tank,
the tube could be bent and damaged by the tightening process. For tanks with a
diameter up to 2900 mm, the safety distance must be about 10 mm. For larger
tanks, the safety distance must be more than 10 mm, and is to be selected according
to the tank size.
Write down this safety distance for the configuration of VISY-Command with
VISY-Setup.
(6) Connect the equipotential bonding cable with the outer equipotential clamp of the probe
head.
(7) Connect the supplied FAFNIR connection cable to the VISY-Stick. First tighten the union
nut of the M12 coupler by hand and then tighten it further through 180° using a spanner. The tightening torque should be between 100 … 150 Ncm.
An installation kit 1" is also available as an option. This installation kit consists of a productand water float and a screw-in unit. It makes the installation of VISY-Stick possible by using an
R1 threaded sleeve.
Installation Page 22/55
5.2.2 Riser installation
The usual riser installation is made with 3" or 4" pipes (the diameter of the pipes must be at
least 2" for drawn pipes or 2.5" for welded pipes). The VISY-Stick for risers (see Figure 14) is installed as follows:
(1) As shown in the figure below, pull the riser installation kit (art. no. 900111) over the
probe head and adjust it to 3 or 4 inches depending on the riser diameter.
Figure 15: Riser installation kit
(2) Check that the circlip on the end of the probe is securely attached so that the float is
unable to fall into the tank.
Page 23/55 Installation
(3) The floats must be pushed onto the probe tube with the marking “TOP” facing the
probe head.
(4) Connect the equipotential cable with the outer equipotential clamp of the probe head.
(5) Connect the supplied FAFNIR connection cable to the VISY-Stick. First tighten the union
nut of the M12 coupler by hand and then tighten it further through 180° using a spanner. The tightening torque should be between 100 … 150 Ncm.
(6) Let the VISY-Stick sensor slowly slide into the riser and place carefully on the bottom of
the tank.
(7) Install a suitable cable gland in the sealing cap of the riser and guide the FAFNIR con-
nection cable and the equipotential cable through it.
If the riser protrudes into the tank, a coaxial arrangement must be employed inside the pipe
during installation of the VISY-Stick level sensor. The float must be able to move freely without
touching the riser.
5.2.3 Installing VISY-Stick N and VISY-Stick LPG without installation kit
Similar to chapter 5.2.1, but the cutting ring screw is tightened.
Installation Page 24/55
5.2.4 Installation of VISY-Stick Flex
Please note that the flexible and therefore fragile nature of the VISY-Stick Flex sen-
sor makes it more prone to mechanical shock. The sensor must not be unpacked
until it has been brought to its place of installation.
The corrugated hose must not be bent more than it already is in the packaging and
must not be pulled apart in axial direction.
Installation must be carried out by at least two persons, one of whom unrolls the
corrugated hose while the other feeds the corrugated hose into the tank.
For sensor installation, the tank coupling provided for assembly must have an internal thread
of 1½". The sensor is supplied in a special transport box. The float and the weight are ready
assembled. Before installation, prepare a spanner (AF 55) and some sealing material for the
screw-in unit, a hexagon key (5 mm), a spanner (AF 30) for the stuffing box, and a measuring
instrument.
(1) Remove the sensor from the packaging
(2) If there is deformation or kinking at the transition between probe tube and corrugated
hose, this must be straightened out with extreme care
(3) Loosen the hexagon-socket screw and stuffing box, slide the screw-in unit towards the
probe head and secure, then seal in the thread of the screw-in unit
(4) Slide the float onto the weight at the lower end of the probe
(5) Feed the lower end of the probe (magnetic base) into the tank
(6) Unroll the corrugated hose, taking care to avoid chafing on the tank coupling, until the
top end of the corrugated hose reaches the tank coupling
(7) Then lower the sensor slowly until you feel the magnetic force of the magnetic base
take hold on the tank bottom (steel tanks only)
(8) In this position, measure the clearance from the lower edge of the probe head to the
tank lid (installation dimension) and note it down
(9) Lower the probe head slightly, slide the screw-in unit towards the tank coupling and
tighten
(10) Raise the probe head until the exact installation dimension that you measured before.
Attention: do not raise it any higher, otherwise the sensor will become detached from
the tank bottom
(11) Tighten the stuffing box and secure using the hexagon-socket screw
(12) Then connect the M12 coupler of the supplied FAFNIR connection cable to the sensor
and connect the cable to the VISY-Command (optionally to the transmitter VISY-RFT of
the radio version)
(13) Configure VISY-Command using the VISY-Setup software, set the water alarm to a value
higher than 150 mm and as Offset 114 mm
(14) Compare the displayed filling level with the actual filling level, if known (plausibility
check)
Page 25/55 Installation
5.2.5 Sensor replacement instructions
M8 threaded rod, length: 250 mm
Mounting tube, on site
Pipe clamp for VISY-Stick Sump
After replacing the VISY-Stick sensor, the following values must be entered again using VISYSetup:
• The device number of the new VISY-Stick sensor
• Check the installation offset value and correct as necessary
5.2.6 Installation kit for VISY-Stick Sump
An installation kit (art. no. 910036) is available for mounting the VISY-Stick Sump.
Figure 16: Installation kit for VISY-Stick Sump
Installation Page 26/55
Reducer ∅ 12 / ∅ 16 for the sensor attachment
Adjustable installation length
Jacketed pipe length (can be cut on site)
appr. 50
appr. 20
appr. 32
5.2.7 Variable LPG installation kit for liquid gas containers
The Variable LPG Installation Kit has been developed for FAFNIR sensors, in order to measure
the level in LPG tanks in pressure-free area. This allows the sensor to be installed and removed
without having to open the tank at any time and without further mounting work.
The Variable LPG Installation Kit consists of a jacketed pipe with a special LPG float made of
BUNA, a cutting ring fitting with ¾" NPT external thread for process connection, and a compression fitting with PTFE clamping ring for fixing the sensor (see figure below).
Clamping ring, PTFE
Compression fitting,
¾“ NPT, stainless steel
Cutting ring fitting,
Stainless steel
¾" NPT external thread
Process connection, customer site,
¾" NPT thread, centred
e.g.: flange, DN 50, PN 40, form C
jacketed pipe ∅ 16 x 1.5
(can be cut on site)
Labelling "TOP"
Float ∅ 40 x 120
(Material: BUNA)
Adjusting ring Dimensions in mm
Figure 17: Variable LPG installation kit for liquid gas containers
Page 27/55 Installation
(1) The sensor has to stand on the floor of the jacketed pipe, cut the pipe if necessary.
(2) Screw the sealed cutting ring fitting in the flange (min. DN 50) or reducer (min. 1½"),
slide the jacketed pipe into the cutting ring fitting, pipe must be movable easily.
(3) Plug the float with marking “TOP” upwards the probe head on the jacketed pipe and
then fix the adjusting ring. Check the adjusting ring being securely attached so that the
float is unable to fall into the tank. Slide the float to the bottom of the jacketed pipe.
The marking "TOP" on the float must point towards the probe head.
(4) Connect the flange or the reducer with the process connection at the tank.
(5) Press the jacketed pipe gently on the bottom of the tank, mark that position on the
pipe, and fix the pipe 10 mm below the marking (safety distance).
If there is no safety distance between the probe tube and the bottom of the tank,
the tube could be bent and damaged by the tightening process.
(6) To fix the jacketed pipe hand tighten the cutting ring fitting first and then with a 1 ¼
turn clockwise (see following figure).
(7) Insert the sensor VISY-Stick LPG without float into the jacketed pipe and fix it with the
reducer ∅ 12 / ∅ 16 (pipe joint).
(8) Configure the VISY-Command: 18 mm must be entered as an offset in VISY-Setup
(safety distance 10 mm + jacketed pipe bottom 8 mm) and LPG as product.
See also:
Installation guide: variable LPG installation kit, art. no. 350094
5.2.8 1" Installation kit
The optional 1" Installation kit (art. no. 908493 for E10, art. no. 908484 for DK, art. no. 900168
for E85) allows the installation of the VISY-Stick by means of a R1 threaded sleeve.
Installation Page 28/55
1" Product and water float,
40
29.5
Hexagon socket 5 mm
55
G1
18
The 1" installation kit is not suitable for biodiesel.
The installation kit consists of a 1" screw-in unit, a 1" product float and a 1" water float. A
stainless-steel version of the screw-in unit is available as an option.
Width across flats (AF) 30
Width across flats (AF) 41
Material:
Brass or stainless steel, G1
Figure 18: 1" screw-in unit
Dimensions in mm
Figure 19: 1" Product and water float
5.3 Electrical connection
Always ensure that the power has been disconnected before you wire up the VISY-Stick sensors
to the VISY-Command central unit. For wiring, proceed as follows:
• If not already connected, plug the M12 coupler of the supplied FAFNIR connection ca-
ble onto the M12 connector of the probe head. First tighten the union nut of the
coupling by hand and then tighten the nut further through 180° using an open-ended
spanner. The tightening torque should be between 100 … 150 Ncm.
• Connect the routed cable (originating from VISY-Command) to the FAFNIR connec-
tion cable, e.g. using an installation sleeve (art. no. 910035) with pin assignment as
follows:
Stainless steel (1.4571)
Dimensions in mm
Page 29/55 Installation
brown
+
Pin 1
white
A
Pin 2
blue
–
Pin 3
black
B
Pin 4
Pin 4
Pin 1
Pin 2
Pin 3
Table 1: Assignment of the M12 coupler
The connection cable between the VISY-Stick and VISY-Command must have the following
properties:
• Four-wire unshielded cable, oil-resistant
• Cable cross-section (4 x 0.5 mm² up to 100 m or 4 x 1.0 mm² up to 200 m)
• Colour blue or marked blue (cable for intrinsically safe power circuits)
• Maximum diameter 6 - 10 mm for reliable sealing by the cable gland in VISY-
Command.
The equipotential bonding must be carried out by the installer in accordance with
the nationally applicable installation regulations. For this purpose the equipotential
terminal of the probe head can be used.
5.3.1 Voltage surge protection
To protect the VISY-Stick level sensors from voltage surges, we recommend that you install the
BA 350 DUO voltage surge protector directly upstream of the probe in the manhole or dispenser
sump. The BA 350 DUO voltage surge protector is installed between the FAFNIR connection
cable of the probe and the VISY-Command cable installed on site (art. No. 903314).
Special EN regulations including EN 60079-14 and EN 60079-25 as well as local
installation regulations must be observed.
Installation Page 30/55
Tank Durchmesser
0
10
20
30
40
50
60
70
80
90
100
110
0 50 100 150 200 250 300 350 400
Sondenabstand (a) zur zentralen vertikalen Achse [mm]
Sonde nabstand (b) zum Tankboden [mm]
1600 mm
2000 mm 2500 mm
2900 mm
Probe distance (a) from central vertical axis [mm]
Probe distance (b) from tank bottom [mm]
Tank diameter
a
b
5.4 Installation offset
Figure 20: Installation offset
The VISY-Stick sensors are installed vertically in the tanks as close as possible to the central
vertical axis. Afterwards, it will be necessary to configure the respective positions of the sensors
in VISY-Command using the installation offset. The offset is composed of the distance (b) of the
probe tube (see Figure 20) to the tank bottom plus the safety distance (see Figure 14). The installation offset is transmitted to VISY-Command during configuration of the individual
measuring points using the VISY-Setup software application.
Figure 20 shows the probe distance (b) from the lowest point of the tank bottom for cylindrical
tanks according to DIN 6608, 6616, 6617, and 6624 depending on probe distance (a) from the
central vertical axis when the probe is in contact with the tank wall.
Page 31/55 Installation
6 Maintenance
6.1 Servicing
The sensors and associated floats are maintenance-free if they are operated according to the
manufacturer's specifications and not used to measure other media.
6.2 Return shipment
Before returning any FAFNIR equipment the Return Material Authorization (RMA) by the
FAFNIR customer support is required. Please contact your account manager or the customer
service to receive the instructions on how to return goods.
The return of FAFNIR equipment is possible only with authorization by the FAFNIR
customer care.
7 List of figures
Figure 1: Mode of operation of the magnetostrictive measuring principle .......................................... 5
Figure 2: VISY-Stick / Biodiesel / E15 ................................................................................................................... 7
Figure 3: VISY-Stick Advanced ................................................................................................................................ 8
Figure 4: VISY-Stick Ethanol ..................................................................................................................................... 9
Figure 5: VISY-Stick Advanced Ethanol ............................................................................................................. 10
Figure 6: VISY-Stick N for AdBlue® urea solution ........................................................................................ 11
Figure 7: VISY-Stick Flex .......................................................................................................................................... 12
Figure 8: VISY-Stick LPG .......................................................................................................................................... 13
Figure 9: VISY-Stick Interstitial .............................................................................................................................. 15
Figure 10: VISY-Reed Interstitial Dry .................................................................................................................. 16
Figure 11: VISY-Stick Sump .................................................................................................................................... 17
Figure 12: VISY-Reed Sump ................................................................................................................................... 18
Figure 13: VISY-Stick Oil Separator ..................................................................................................................... 19
Figure 14: VISY-Stick installation with riser and screw-in unit ................................................................. 21
Figure 15: Riser installation kit .............................................................................................................................. 23
Figure 16: Installation kit for VISY-Stick Sump ............................................................................................... 26
Figure 17: Variable LPG installation kit for liquid gas containers ............................................................ 27
Figure 18: 1" screw-in unit ..................................................................................................................................... 29
Figure 19: 1" Product and water float ................................................................................................................ 29
Figure 20: Installation offset .................................................................................................................................. 31
8 List of tables
Table 1: Assignment of the M12 coupler ......................................................................................................... 30
Maintenance Page 32/55
Instructions in accordance with Directive 2014/34/EU TÜV 99 ATEX 1496 X
Filling level sensors type VISY-Stick … and type TORRIX Ex … Edition: 06.2018
I Range of application
The filling level sensors are designed for continuous measurement of liquid levels. Floats are used to
measure the liquid levels. These slide on a sensor tube. For interface or water detection, a second float
can be mounted on the sensor tube. In addition, the density of the liquid can be determined via a density
module. The temperature measuring chain VISY-Stick ... Temp ... is used to measure temperatures at
different altitudes without using floats.
The power supply for the devices VISY-Stick … and the forwarding of the measured data to a superordinate evaluation system is provided by the isolating amplifier VP-… or VPI or, in case of the sensor
VISY-Stick … TLS, e.g. by the TLS-… console from Veeder-Root. If an RS-485 interface is used, the sensor
VISY-Stick … RS485 can be used.
The filling level sensors TORRIX Ex … can be produced with different interfaces. These are, for example,
the interfaces "4 … 20 mA" (TORRIX Ex … and TORRIX Ex C…), "RS-485" (TORRIX Ex RS485…) or TAG
(TORRIX Ex TAG…). The TORRIX Ex SC… filling level sensors are connected to the VP-… or VPI isolating
amplifier.
II Standards
The equipment is designed in accordance with the following European standards
EN 60079-0: 2012 + A11:2013 Equipment - General Requirements
EN 60079-11: 2012 Equipment protection by intrinsic safety "i"
EN 60079-26: 2015 Equipment with Equipment Protection Level (EPL) Ga
III Instructions for safe …
III.a … use
The approval applies to equipment type VISY-Stick … and TORRIX Ex …
The devices are designed as intrinsically safe equipment and are suitable for use in potentially explosive
areas. The "Advanced" types (TORRIX Ex …-A, VISY-Stick Advanced …), the "flexible" types (TORRIX Ex …
Flex, VISY-Stick … Flex …) and the types with plastic coating against very aggressive media (TORRIX Ex
... PL) can be used for all gases of groups IIA and IIB. The temperature measuring chain VISY-Stick ...
Temp ... and all other filling level sensors can be used for all gases of groups IIA, IIB and IIC. In addition,
all level devices may be used for dust groups IIIA, IIIB and IIIC.
To use a non-conductive plastic float in potentially explosive area with gases from the group IIC, the
hazard of static charging must be prevented. Here a few conditions need to be observed:
• The use of the float in strongly flowing, non-conductive liquids is forbidden;
• There must be no agitator/mixer in the tank;
• Frictions on non-conductive components are to be avoided;
• The float must not be cleaned in a dry state.
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TORRIX Ex C …
1
+ + +
2
A A (+) 3 - - - 4 B B (-)
III.b … assembling and dismantling
Assembling and dismantling must solely be carried out with the power disconnected!
Prior to the installation, it may be necessary that the float/s or the density module is disassembled.
During the assembly, it must be ensured that the float/s or the module is/are mounted the right way on
the sensor tube.
Only for the TORRIX Ex ... with screw terminals the opening of the sensor head is provided. Further
disassembly may damage the filling level sensor and invalidate its approval.
III.c … installation
The installation must be carried out only with the power disconnected. Special rules and regulations,
including EN 60079-14 and local installation regulations, must be observed.
If a device is supplied with screw-in unit, the thread of the screw-in unit must be fitted with suitable
sealing material, screwed into the existing sleeve and tightened. With a riser installation, the plastic
centring aid is plugged onto the sensor head. Then let the sensor slide into the riser tube until it stands
firmly on the bottom. If the filling level sensor is supplied without process connection, the installer is
responsible for compliance with the EX-requirements.
General information (see also EN 60079-26, section 4.3):
If a device is installed in the boundary wall between Zone 0 and Zone 1, it must be ensured that a
sufficiently tight gap (IP66 or IP67) is achieved after installation.
Flexible filling level sensor (TORRIX Ex … Flex …, VISY-Stick … Flex …)
This type can be produced with different sensor bases to serve for stabilizing the sensor. A foot can
be a magnetic base. The magnet is then encapsulated in an electricity conducting plastic and can
therefore be used in potentially explosive areas.
LPG filling level sensor VISY-Stick … LPG …
The adjustable installation kit for LPG tanks was developed to allow the sensor to be installed and
removed at any time without any additional work and without having to open the tank. The adjustable
installation kit for LPG tanks consists of a jacket pipe with special LPG float made of BUNA and a ¾“
NPT cutting ring fitting. In the case of installation with a cutting ring fitting, the position of the sensor
can no longer be altered after the union nut has been tightened.
Environmental sensor VISY-Stick Sump …
This environmental sensor can be fixed with the mounting kit.
When wiring the sensor to the associated equipment (preferably blue coloured cable), the approved
inductance and capacitance of the associated equipment must not be exceeded. The terminals of the
sensor must be connected to the same terminals of the isolating amplifier.
For the level sensors with screw terminals type TORRIX Ex ... and TORRIX Ex HART ... , the terminal designation is "+" and "-". For devices with M12 connectors, the pin assignments are as follows:
Pin
TORRIX Ex SC …
VISY-Stick …
TORRIX Ex TAG …
VISY-Stick … TLS
TORRIX Ex RS485 …
VISY-Stick … RS485
M12-Cable (Female)
Table 1: Terminal assignment of the sensors
Page 2/7
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1
Manufacturer:
FAFNIR GmbH, 22525 Hamburg
2
Type designation:
TORRIX Ex … / VISY-Stick …
3
Certificate number:
TÜV 99 ATEX 1496 X
4
Ex marking:
4a
according to ATEX di-
II 1 GD
4b
according to EN standTORRIX Ex …
Ex ia IIC T4 Ga
TORRIX Ex … PL
Ex ia IIB T4 Ga
TORRIX Ex SC… / VISY-Stick … / VISY-Stick Flex Temp
Ex ia IIC T4 Ga
To integrate the devices in the equipotential bonding, a PA terminal is provided on the sensor head.
General information (see also EN 60079-14:2014, section 6.4.1):
Exposed conductive parts need not be separately connected to the equipotential bonding system if
they are firmly secured to and are in conductive contact with structural parts or piping which are
connected to the equipotential bonding system.
III.d … adjustment
No Ex-relevant adjustments are required for operation of the sensors.
III.e … putting into service
Before putting into service, all devices must be checked of right installation and connection. The electrical supply, as well of connected devices, must be checked.
III.f … maintenance (servicing and emergency repair)
The device is maintenance-free. In case of a defect, it must be send back to the manufacturer or one of
its representations.
In accordance with the requirements for dielectric strength in EN 60079-11, clause 6.3.13 there is compliance with the insulation test between the intrinsically safe circuit and the chassis of the device with a
voltage of 500 V a.c.
Warning: The type VISY-Stick Sump … and floats made of non-conductive plastic must only be cleaned
with a damp cloth, to minimize the risk of electrostatic charging.
IV Equipment marking
rective:
ards:
II 1/2 G
II 2 G
Ex ia IIC T6…T3 Ga/Gb
Ex ia IIC T6…T3 Gb
Ex ia IIIC T160 °C Da
Ex ia IIB T6…T3 Ga/Gb
Ex ia IIB T6…T3 Gb
Ex ia IIIC T160 °C Da
Page 3/7
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Ex ia IIC T6…T4 Ga/Gb
Ex ia IIC T6…T4 Gb
Ex ia IIIC T135 °C Da
TORRIX Ex SC…-A / TORRIX Ex SC… Flex / TORRIX Ex SC… PL /
Ex ia IIB T4 Ga
TORRIX Ex C… / TORRIX Ex RS485… / TORRIX Ex TAG… /
Ex ia IIC T4 Ga
TORRIX Ex C…-A / TORRIX Ex C… Flex / TORRIX Ex C… PL /
Ex ia IIB T4 Ga
VISY-Stick … TLS / VISY-Stick Flex Temp TLS
Ex ia IIC T4 Ga
VISY-Stick Advanced … TLS / VISY-Stick … Flex … TLS
Ex ia IIB T4 Ga
5
*
Warning label:
WARNING – Potential electrostatic charging hazard – See instructions
6
CE marking:
0044
7
Technical Data
See instructions for technical data
VISY-Stick Advanced … / VISY-Stick … Flex …
Ex ia IIB T6…T4 Ga/Gb
Ex ia IIB T6…T4 Gb
Ex ia IIIC T135 °C Da
VISY-Stick … RS485 / VISY-Stick Flex Temp RS485
Ex ia IIC T4…T3 Ga/Gb
Ex ia IIC T4…T3 Gb
Ex ia IIIC T140°C Da
TORRIX Ex RS485…-A / TORRIX Ex RS485… Flex / TORRIX Ex RS485… PL /
TORRIX Ex TAG…-A / TORRIX Ex TAG… Flex / TORRIX Ex TAG… PL /
VISY-Stick Advanced … RS485 / VISY-Stick … Flex … RS485
Ex ia IIB T4…T3 Ga/Gb
Ex ia IIB T4…T3 Gb
Ex ia IIIC T140°C Da
Ex ia IIC T4…T3 Ga/Gb
Ex ia IIC T4…T3 Gb
Ex ia IIIC T195°C Da
Ex ia IIB T4…T3 Ga/Gb
Ex ia IIB T4…T3 Gb
Ex ia IIIC T195°C Da
* Warning is only valid for sensor VISY-Stick Sump …
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TORRIX Ex …
Ui ≤ 15 V
13 V
30 V
Ii ≤ 60 mA
200 mA
200 mA
Pi ≤ 100 mW
625 mW
1 W
Ci < 10 nF
20 nF
10 nF
Li < 100 µH
410 µH
20 µH
Temperature class
Ta
TF
Category 1G or equipment protection level Ga (filling level sensor completely installed in Zone 0)
T4, T3, T2, T1
-20 °C … +60 °C
Category 1/2G or EPL Ga/Gb (sensor head installed in Zone 1, and sensor tube in Zone 0)
T6
-40 °C … +50 °C
T5
-40 °C … +65 °C
T4, T3, T2, T1
-40 °C … +85 °C
Category 2G or EPL Gb (filling level sensor completely installed in Zone 1)
T6
-40 °C … +50 °C
-40 °C … +85 °C
T5
-40 °C … +65 °C
-40 °C … +100 °C
T4
-40 °C … +135 °C
T3
-40 °C … +200 °C
T2
-40 °C … +300 °C
T1
-40 °C … +450 °C
V Technical data
The following electrical input values apply to the filling level sensors:
Electrical vari-
able
TORRIX Ex SC…
VISY-Stick …
VISY-Stick … TLS
TORRIX Ex C…
TORRIX Ex RS485…
TORRIX Ex TAG…
VISY-Stick … RS485
Table 2: Electrical input data of the filling level sensors
When used in potentially gas explosive atmospheres, please consult table 3 and table 5 for the maximum
temperatures depending on temperature classes and categories or equipment protection levels.
Typ TORRIX Ex SC… bzw. VISY-Stick …
-20 °C … +60 °C
-40 °C … +85 °C
Table 3: Operating temperatures of the filling level sensors in basic version (without interface board)
Page 5/7
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Temperature class
Ta
TF
Category 1G or equipment protection level Ga (filling level sensor completely installed in Zone 0)
T4, T3, T2, T1
-20 °C … +60 °C
Category 1/2G or EPL Ga/Gb (sensor head installed in Zone 1, and sensor tube in Zone 0)
T4
-40 °C … +75 °C
T3, T2, T1
-40 °C … +85 °C
Category 2G or EPL Gb (filling level sensor completely installed in Zone 1)
T4
-40 °C … +75 °C
-40 °C … +135 °C
T3
-40 °C … +200 °C
T2
-40 °C … +300 °C
T1
-40 °C … +450 °C
Temperature class
Ta
TF
Category 1G or equipment protection level Ga (filling level sensor completely installed in Zone 0)
T4, T3, T2, T1
-20 °C … +60 °C
Category 1/2G or EPL Ga/Gb (sensor head installed in Zone 1, and sensor tube in Zone 0)
T6
-40 °C … +40 °C
T5
-40 °C … +55 °C
T4
-40 °C … +80 °C
T3, T2, T1
-40 °C … +85 °C
Category 2G or EPL Gb (filling level sensor completely installed in Zone 1)
T6
-40 °C … +40 °C
-40 °C … +85 °C
-40 °C … +55 °C
-40 °C … +100 °C
-40 °C … +80 °C
-40 °C … +135 °C
T3
-40 °C … +200 °C
T2
-40 °C … +300 °C
T1
-40 °C … +450 °C
Typ TORRIX Ex C… or TORRIX Ex RS485… or TORRIX Ex TAG… or VISY-Stick … RS485 or VISY-Stick … TLS
-20 °C … +60 °C
-40 °C … +85 °C
Table 4: Operating temperatures of the filling level sensors with 4 to 20 mA, RS485 or TAG interface
Type TORRIX Ex …
-20 °C … +60 °C
-40 °C … +85 °C
Table 5: Operating temperatures of the level sensors TORRIX Ex ... (4 ... 20 mA interface)
For use in category 1G or 1/2G, the following applies:
The process pressure for the media must be between 0.8 bar and 1.1 bar where explosive vapour-air
mixtures are present. If no explosive mixtures are present, the equipment may also be operated
outside this area according to the manufacturer's specification.
It must be ensured by suitable measures that at no point of the sensor head, the temperature (T
the respective temperature class is exceeded.
General information (see also EN 60079-0, section 1):
Zone 0 exists only under atmospheric conditions:
Temperature range: -20 °C … +60 °C
Pressure range: 0.8 bar to 1.1 bar
Oxidants: Air (oxygen content approx. 21 %)
) for
a
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Maximum surface temperature
Dust layer ≤ 5 mm
immersed in dust
Types TORRIX Ex SC… / VISY-Stick …
Ta + 30 °C
135 °C
-40 °C … +85 °C
Types VISY-Stick … TLS
Ta + 110 °C
135 °C
-40 °C … +77 °C
Ta + 110 °C
Observe EN 60079-14*
-40 °C … +85 °C
Types TORRIX Ex C… / TORRIX Ex RS485… / TORRIX Ex TAG… / VISY-Stick … RS485
Ta + 55 °C
Observe EN 60079-14*
-40 °C … +85 °C
Types TORRIX Ex …
Ta + 75 °C
Observe EN 60079-14*
-40 °C … +85 °C
When used in potentially dust explosive atmospheres, the maximum ambient temperatures depending
on the maximum surface temperature and the dust layer can be found in the table 6.
Category 1D or equipment protection level Da (filling level sensor completely installed in Zone 20)
Ambient temperature Ta
Table 6: Operating temperatures for dust explosive atmospheres
The filling level sensors achieve a housing protection of:
Degree of protection: IP68
VI Specific conditions for use
1. When using Titanium floats or Sump Environmental Sensors, the risk of ignition due to impact or
friction shall be avoided.
2. When using plastic parts, pay attention to electrostatics.
*
For the assessment of the temperatures see section 5.6.3.3 of EN 60079-14:2014
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Meaning
Abbreviation
Colour
Power supply +
+
brown
Power supply -
-
blue
Communication A
A
white
Communication B
B
black
Instructions TÜV 09 ATEX 374581
Environmental Sensor for Leakage Detection type VISY-Reed … Edition: 11.2014
I Range of application
The environmental sensors VISY-Reed ... serve as level detectors in potentially explosive areas. A float
with built-in magnet slides on the sensor tube. It closes or opens a reed contact. A microcontroller
evaluates the contacts and can trigger an alarm in both the open and the closed state.
II Standards
The equipment is designed in accordance with the following European standards
EN 60079-0:2012 Equipment – General Requirements
EN 60079-11:2012 Equipment protection by intrinsic safety ‘i’
EN 60079-26:2007 Equipment with Equipment Protection Level (EPL) Ga
III Instructions for safe …
III.a … use
The environmental sensors are designed as intrinsically safe equipment and are suitable for use in
potentially explosive areas. The environmental sensors may be used for all gas groups (IIA, IIB and IIC).
The approval applies to the device versions
VISY-Reed Interstitial Dry
VISY-Reed Interstitial Wet
VISY-Reed Sump Dispenser
VISY-Reed Sump Manhole
III.b … assembling and dismantling
The housing of the environmental sensor must not be opened! Disassembly may damage the environmental sensor and its approval expires.
III.c … installation
Wiring work may only be performed with the power disconnected. Special rules and regulations, including EN 60079-14 and local installation regulations, must be observed.
When wiring the sensor to the measuring transducer (preferably blue coloured cable), the permissible
inductance and capacitance of the associated equipment must not be exceeded. The terminals of the
sensor must be connected to the same terminals of the transducer. The environmental sensors can
also be connected in parallel to the level sensor VISY-Stick … Pin assignment:
Table III.c: Pin assignment of environmental sensors with integrated cable
For integration of the environmental sensor in the potential equalization, a PA terminal at the sensor
housing is present.
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III.d … adjustment
To operate the environmental sensor, security settings are not necessary.
III.e … putting into service
Before putting into service, all equipment must be checked to ensure it is properly connected and
installed. The power supply, as well of connected equipment, must be checked.
III.f … maintenance, overhaul and repair
The environmental sensors are generally maintenance-free. In case of a defect it must be send back to
FAFNIR or one of his representations.
The unit complies with the dielectric strength requirements as set out in EN 60079-11, clause 6.3.13.
IV Equipment marking
1 Manufacturer: FAFNIR GmbH, Hamburg
2 Type designation: VISY-Reed …
3 Serial number: Ser. N°: …
4 Certificate number: TÜV 09 ATEX 374581
5 Ex marking:
II 1 G Ex ia IIC T6…T5 Ga
II 2 G Ex ia IIC T6…T4 Gb
6 CE marking: 0044
7 Technical data: -20 °C Ta(Ga) +50 °CT6 / +60 °CT5
-40 °C Ta(Gb) +50 °CT6 / +65 °CT5 / +85 °CT4
Ui 15 V
Ii 60 mA
Pi 100 mW
Li < 100 µH
Ci < 10 nF
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Temperature class
Ta
Category 1 resp. equipment protection level Ga (environmental sensor installed in zone 0)
T6
-20 °C … +50 °C
T5, T4, T3, T2, T1
-20 °C … +60 °C
Category 2 resp. equipment protection level Gb (environmental sensor installed in zone 1)
T6
-40 °C … +50 °C
T5
-40 °C … +65 °C
T4, T3, T2, T1
-40 °C … +85 °C
V Technical data
The following electrical input values apply to the environmental sensors:
Input voltage Ui 15 V
Input current Ii 60 mA
Input power Pi 100 mW
Internal capacitance Ci < 10 nF
Internal inductance Li < 100 µH
When the environmental sensor is used in potentially explosive atmospheres, the maximum temperatures depending on the temperature classes and the categories or the equipment protection level can
be found in the table V.
Table V: Maximum temperatures of environmental sensors
For use in areas where the equipment protection level Ga is required, the following applies:
The process pressure for the media must be between 0.8 bar and 1.1 bar where explosive vapourair mixtures are present. If no explosive mixtures are present, the equipment may also be operated
outside this area according to the manufacturer's specification.
General information (see also EN 60079-0, section 1):
Zone 0 exists only under atmospheric conditions:
Temperature range: -20 °C … +60 °C
Pressure range: 0,8 bar … 1,1 bar
Oxidants: Air (oxygen content approx. 21 %)
The environmental sensor achieves a degree of protection provided by enclosure of:
Degree of protection: IP68
VI Specific conditions
None.
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9.3 Technical Data
• The VISY-Stick and VISY-Reed sensors are approved for use in potentially explosive
atmospheres, see Certificates.
• For details on explosion protection, permissible ambient temperature (probe head),
and the connection data please refer to the approvals and operating instructions.
• With a battery-powered radio transmitter, all sensors can be used as wireless versions.
• All sensors have protection class IP68 according to EN 60529 (IPX8: Immersion depth
of 2 metres for 30 days).
For further technical data see:
VISY-Stick VISY-Reed Data, multilingual, art. no. 350105
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FAFNIR GmbH
Schnackenburgallee 149 c
22525 Hamburg, Germany
Tel.: +49 / 40 / 39 82 07-0
Fax: +49 / 40 / 390 63 39
E-mail: info@fafnir.com
Web: www.fafnir.com
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