BE50-125-6 Kotron Probes

KOTRON ® RF
SENSING PROBES
Kotron RF Capacitance sensing probes are available in
many different configurations to handle a wide variety of
application conditions.
The sensing probes in this brochure can be combined with
all Kotron level switches and transmitters.Some amplifiers
require specific probes only. Refer to the amplifier bulletins
to ensure proper selections.
A probe to satisfy each application
FEATURES
Rigid probes:
- Available as bare probe/insulated probe
- Max. process temperature:
540 °C (1,000 °F) - bare probe
200 °C (400 °F) - insulated probe
- Max. process pressure: 345 bar (5,000 PSIG)
- Lengths up to 6 m (234")
- Bare probes can be cut to length in the field
- Wetted materials include: 316 SST (1.4401), 316/316L
(1.4401/1.4404), Hastelloy C (2.4819), Teflon (TFE),
Halar (ECFTE) and Kynar (PVDF)
- Ceramic seals for High Temperature / High Pressure
designs.
Flexible probes:
- Available as bare probe/insulated probe
- Max. temperature:
345 °C (650 °F) - bare probe
140 °C (285 °F) - insulated probe
- Lengths up to 45m (150')
- Insulated probe length can be adjusted in the field
- Wetted materials include: 316 SST (1.4401) and Halar
(ECFTE)
- Teflon seals for standard probes, ceramic seals for High
temperature/ High Pressure designs.
AGENCY APPROVALS
ATEX
FM/CSA
Intrinsically safe (with Kotron 805)
II 1G EEx ia II C T6
Intrinsically safe or explosion proof,
depending on the selected electronics
MAGNESEAL®
- see page 11
APPLICATIONS
•
•
•
•
•
•
•
•
Clean or dirty liquids.
Viscous liquids.
Light slurries.
High temperature/pressure liquids.
Foods and beverages.
Powders and granulars.
Hydrocarbons & solvents.
Corrosives, acids & caustics.
Worldwide level and flow solutions
GUIDELINES FOR SELECTING A CORRECT PROBE CONFIGURATION
Probe selection is the most critical part of applying an R.F.
Capacitance device for a given application. The goal is to
select the probe that will give the optimum capacitance
change per unit level change (pF/cm). The first step in
selecting an R.F. probe is determining the correct configuration for your application. The following guidelines will
assist you in this selection.
1. Use bare probes for non-conductive liquids.
2. Use insulated probes for conductive liquids. If you are
not sure about the conductivity value, use an insulated
probe. Teflon has the widest temperature range and
material compatibility. Kynar will maximize the capacitance change. (Use Kynar where possible.)
3. Use a probe with an integral ground reference
(Reference Probe) when measuring non-conductive
fluids in horizontal tanks, non-conductive liquids where
the probe will be mounted more than 30 cm (12") from
the vessel wall, or when measuring any liquid in nonmetallic vessels. The stillwell probe is the most common. If the application requires “no metal” in the
process or if the liquid is too viscous for a stillwell, use
the reference rod probe. The reference wire probe
should only be used in clean, conductive, non-coating
applications.
4. Use a flexible (cable) probe when the measurement
range is greater than 3 m (10'). Rigid (rod) probes are
available up to 6m (236") in length, but they are sometimes difficult to handle and can be damaged during
installation.
5. Use an inactive sheath probe when mounting horizontally through a nozzle.
Recommendation for continuous measurement
(with Kotron 082 and 805).
• For non-conductive media (dielectric < 10 or conductivity less than 10 µsiemens/cm)
0 % = min. 100 mm (4") above end of probe.
• For conductive media (dielectric > 10 or conductivity
greater than 10 µsiemens/cm)
0 % = min. 50 mm (2") above end of probe.
PRINCIPLE OF OPERATION
The amount of capacitance developed in any application
is affected by three variables:
• size (surface area) of the probe;
• distance from the probe to its ground;
• dielectric of the medium it is measuring.
Considering that the probe’s mounting position is fixed,
and the dielectric constant of the process media is stable,
then the amount of capacitance developed is directly proportional to the level of the process media on the probe.
Increasing the surface area (diameter) of the probe and/or
decreasing the distance between the probe and its ground
reference will increase the capacitance gain.
Basic Considerations
There are two types of process media:
• Non-conductive (dielectric < 10 or conductivity less than
10 µsiemens/cm)
Hydrocarbons, solvents, and bulk solids typically fall
into the category of non-conductive media. Initially,
when the vessel is empty, the dielectric constant is 1
(air). As the media level rises, the dielectric of the media
replaces the air, thus causing the capacitance to
increase. This increase is linear with the level increase.
A bare probe is usually the best choice for this application.
Air
2
Non-conductive
(insulating)
medium
Bare metal
probe
Metal tank
wall (ground
reference)
• Conductive (dielectric > 10 or conductivity greater than
10 µsiemens/cm)
Conductive media in conjunction with a bare probe will
result in an electrical “short”, causing a transmitter to
indicate a high level or a switch to change state (this
may be desirable depending upon the application). The
solution is to use an insulated probe constructed of
Teflon®, Kynar®, etc. The conductive media creates an
electrical connection between the tank wall and the
probe insulation. Like the non-conductive application,
the distance between the probe and ground, and the
probe diameter, is fixed. However, instead of measuring
the dielectric of the media, we are measuring the dielectric of the probe where it is covered by the media.
Insulated
probe
Conductive
medium
Conductive medium
(ground reference)
Metal
probe
rod
Metal
tank wall
Probe
insulation
CAPACITANCE PICO FARAD (pF) GAIN GRAPHS
The following pages contain capacitance gain graphs
which can be used to determine the proper probe/electronics choice for any given application. To use the
graphs, follow the steps below.
1. Determine the dielectric of the process medium being
measured. If the dielectric is unknown, use a dielectric
of 2 for non-conductive media such as hydrocarbons
or dry media, and a dielectric value of 80 for water
based, conductive liquids (dielectric values are along
the X axis).
2. Choose a probe. Since more than one probe will usually work, consider the other application parameters
such as temperature, pressure, material compatability,
etc.
3. Find the graph which covers the chosen probe.
Choose the curve on the graph which most closely
relates to your particular application (Stillwell, 10 cm,
30 cm, 60 cm, 120 cm and 240 cm tank dia.).
4. Using the chosen curve, determine the amount of
pF/cm your application will develop (pF/cm values are
on Y axis).
5. Multiply the pF/cm value by the total cm of probe
needed in your application.
6. Compare total capacitance generated by probe
against the needed zero and span of the Kotron electronics to be used.
Range of capacitance adjustment
811
810
082
805
Zero set point
min. 0 pF to max. 1000 pF
min. 0 pF to max. 500 pF
min. 0 pF to max. 1000 pF
min. 0 pF to max. 10000 pF
Span/Differential
min. 0.5 pF to max. 700 pF
0.5 pF, fixed
min. 50 pF to max. 4000 pF
min. 5 pF to max. 10000 pF
These charts are meant as an application aid; actual values may differ slightly. Always give yourself at 10 % margin of error to ensure satisfactory performance.
These curves represent the probe located in the center of
the vessel. If the probe is near one wall of a large tank, do
the following: multiply the distance from the tank wall by 2
(to develop a diameter), choose the closest curve in the
chart to your application, and then multiply the resultant
pF value x 78 %. This will account for the probe not being
totally surrounded by the ground reference.
pF per
cm (inch)
8.0 (20)
Stillwell
7.2 (18)
6.4 (16)
5.6 (14)
4.8 (12)
4.0 (10)
3.2
(8)
2.4
(6)
1.6
(4)
0.8
(2)
0
(0)
Tank diameter
cm (inches)
10 (4)
30 (12)
60 (24)
120 (48)
240 (96)
1
2
3
4
5
6
7
Dielectric value of media
8
9
10
Example:
Parameters: a. Dielectric = 2.0
b. Probe = Part No. 8CB-AAEB-183 (with stillwell)
c. pF/cm = 0.8
d. Electronics = Kotron Two-Wire Transmitter
e. Required application span = 1830 mm
f. Electronics span = 50 pF min. to 4000 pF
max. (See chart above.)
0.8 pF/cm x 183 cm = 146 pF
The total capacitance is enough to meet the 50 pF minimum span of the
electronics.
3
INSULATED RIGID PROBES FOR CONDUCTIVE - NON CONDUCTIVE MEDIA
RIGID PROBES
Rigid probes consist of a process connection, a seal and
a probe rod. The rod may take many forms, depending on
the application. The following is a description of some of
the more common rigid probe styles:
Insulated probes
Insulated rod probes are used in conductive
process media with a dielectric value greater
than 10 or a conductivity value greater than
10 µsiemens/cm. Capacitance is typically
rod
measured from the probe rod through Probe
Insulation
the insulation to the process media,
which is at the same potential as the
tank wall for conductive media. Probes
are insulated in Teflon, Halar® or
Kynar. When you are uncertain about the
dielectric constant of your process media, insulated
probes are a wise choice.
Inactive sheath
An inactive sheath is a metallic tube that is
tightly coupled to the insulation on the
rod
probe rod and attached to the process Probe
Insulation
connection. The sheath “deadens” the
portion of the probe covered. It is
used when a false capacitance could
be developed by interference, such as:
• Collection of debris in a nozzle when the
probe is horizontally mounted.
• Falling process media entering the tank.
Bent probe
L1
Bent rod probes have a
variety of uses. They
can provide vertical
configurations when only
L2
side mounting is available. They can also provide horizontal configurations when only top
mounting is available. When top mounted, the
horizontal section of the probe can be used to create
an extremely stable setpoint by developing a very
large capacitance change with a small level change.
REFERENCED PROBES
This classification covers probes that can supply the “second plate of the capacitor” in non-metallic tanks, or linearize an existing reference (i.e. horizontal cylindrical
tanks). There are two types of referenced probes offered:
Stillwell
A stillwell is a metallic tube, or
pipe, into which a probe is
inserted concentrically. It
can be used to minimize the effect of
turbulence in a
vessel and increases the capacitance
gain by bringing the
ground
reference
closer to the probe.
Reference wire
A reference wire is spirally wrapped around
an insulator probe to provide a “ground” reference where none exists. It must be used
selectively: clean, conductive, and low viscosity processes only.
Capacitance gain chart for Teflon coated probes
8xA-1Axx-xxx or 8xA-4Axx-xxx
(digit"x" represents all possible combinations)
Refer to page 3 for instructions how to use this chart
Tank diameter
cm (inches)
10 (4)
Stillwell
30 (12)
60 (24)
120 (48)
240 (96)
pF per
cm (inch)
4.0 (10)
3.6
(9)
3.2
(8)
2.8
(7)
2.4 (6)
2.0
(5)
1.6
(4)
1.2
(3)
0.8 (2)
0.4
(1)
0
(0)
10
30
40
50
60
Dielectric value of media
70
80
Capacitance gain chart for the Halar coated probes
8xA-2Axx-xxx or 8xA-5Axx-xxx
(digit"x" represents all possible combinations)
Refer to page 3 for instructions how to use this chart
Tank diameter
cm (inches)
10 (4) Stillwell
pF per
cm (inch)
30 (12)
4.4 (11)
60 (24)
120 (48)
240 (96)
4.0 (10)
3.6
(9)
3.2
(8)
2.8
(7)
2.4
(6)
2.0
(5)
1.6
(4)
1.2
(3)
0.8
(2)
0.4
(1)
0
(0)
10
20
30
40
50
60
Dielectric value of media
70
80
Capacitance gain chart for the Kynar coated probes
8xA-3xxx-xxx or 8xA-6xxx-xxx
(digit"x" represents all possible combinations)
Refer to page 3 for instructions how to use this chart
pF per
cm (inch)
16.0 (40)
Stillwell
Tank diameter
cm (inches)
10 (4)
30 (12)
60 (24)
120 (48)
240 (96)
12.0 (30)
8.0 (20)
4.0 (10)
0
(0)
10
4
20
20
30
40
50
60
Dielectric value of media
70
80
SELECTION DATA: INSULATED PROBES (for conductive - non conductive media)
A complete measuring system consists of:
1. KOTRON® amplifier. See bulletin BE 50-1xx
2. KOTRON® Probe
3. KOTRON® Bent probe: specify L1 and L2 lengths in mm (see page 4)
4. OPTION: Heat extension for process temperatures > 95 °C (200 °F): P/N: 089-6593-001 (see page 6)
2. Order code for INSULATED RIGID PROBES
BASIC MODEL NUMBER
8 C A
Standard INSULATED probe
MATERIAL (316/316L - 1.4401/1.4404 process connection➀) AND MAX TEMP/PRESSURE RATING➁
1
2
3
4
5
6
A
A
A
A
A
A
➀
➁
➂
➃
➄
Carbon steel rod with Teflon (TFE) coating ➂
Carbon steel rod with Halar (ECFTE) coating ➃
Carbon steel rod with Kynar (PVDF) coating ➄
316/316L SST (1.4401/1.4404) rod with Teflon (TFE) coating ➂
316/316L SST (1.4401/1.4404) rod with Halar (ECFTE) coating ➃
316/316L SST (1.4401/1.4404) rod with Kynar (PVDF) coating ➄
Consult factory for Halar (ECFTE)/Kynar (PVDF) faced flanges or mounting nut
Temperature at electronics should not exceed 70 °C (160 °F)
Max 200 °C @ 13.8 bar/max 205 bar @ 40 °C (max 400 °F @ 200 psig/max 3000 psig @ 100 °F)
Max 95 °C @ 3.5 bar/max 205 bar @ 40 °C (max 200 °F @ 50 psig/max 3000 psig @ 100 °F)
Max 95 °C @ 13.8 bar/max 205 bar @ 65 °C (max 200 °F @ 200 psig/max 3000 psig @ 150 °F)
THREADED PROCESS CONNECTION
1
2
E
3/4" NPT - thread (not for probe with stillwell - configuration style “B”)
1" NPT - thread
G1 (1" BSP) - thread
4
5
6
7
8
9
A
B
C
D
1"
1 1/2"
2"
3"
4"
1"
1 1/2"
2"
3"
4"
ANSI FLANGED PROCESS CONNECTION
150 lbs RF flange ➁
150 lbs RF flange
150 lbs RF flange
150 lbs RF flange
150 lbs RF flange
300 lbs RF flange ➁
300 lbs RF flange
300 lbs RF flange
300 lbs RF flange
300 lbs RF flange
EN (DIN) FLANGED PROCESS CONNECTION
L
M
K
N
DN 25
DN 40
DN 50
DN 50
A
EN 1092-1 Type A ➁
EN 1092-1 Type A
EN 1092-1 Type A
EN 1092-1 Type A
CONFIGURATION STYLE
A
B
C
D
E
8 C A
PN 16/25/40
PN 16/25/40
PN 16
PN 25/40
S
T
U
V
Y
Z
1" - 1 1/2"
2"
3"
4"
Tri-Clamp® ➀
Tri-Clamp® ➀
Tri-Clamp® ➀
Tri-Clamp® ➀
➀ Only for 8CA-xAxA-xxx probes
➁ Not for 8CA-xAxB-xxx probes
DN 25 - DIN 11851 ➀
DN 50 - DIN 11851 ➀
➀ Only for 8CA-xAxA-xxx probes
➁ Not for 8CA-xAxB-xxx probes
Standard Probe
Standard Probe with 25 mm (1") diameter stillwell in 316 SST (1.4401) ➀
Standard Probe with 150 mm (6") inactive sheath in 316 SST/316L (1.4401/1.4404)
Bent probe 90°, specify L1 and L2 lengths in mm (see page 4)
Standard Probe with reference wire in 316 SST/316L (1.4401/1.4404)
➀ Consult factory for smaller diameter stillwell probe
INSERTION LENGTH (specify length per 1 cm (0.39") increments)
0 1 5
Minimum length of 15 cm (6")
0 1 8
Minimum length of 18 cm (7") for probes with G1 connection
5 9 5
Maximum length of 595 cm (234")
X = product with a specific customer requirement
5
RIGID PROBES
Rigid probes consist of a mounting nut (process connection) a probe rod and seal. The rod may take many forms,
depending on the application. The following is a description of some of the more common rigid probe styles:
Bare probes
Bare rod probes are typically used in non-conductive process media with a dielectric value
less than 10 or a conductivity value less
than 10 µsiemens/cm. Capacitance is measured
from the probe through the process media to the
vessel wall.
Bent probe
L1
Bent rod probes have a
variety of uses. They
can provide vertical
configurations
when
L2
only side mounting is available. They can also provide horizontal configurations when only top mounting is available.
When top mounted, the horizontal section of
the probe can be used to create an extremely
stable setpoint by developing a very large capacitance
change with a small level change.
REFERENCED PROBES
This classification covers probes that can supply
the “second plate of the capacitor” in non-metallic tanks, or linearize an existing reference (i.e.
horizontal cylindrical tanks).
Stillwell
A stillwell is a metallic tube, or
pipe, into which a probe is inserted concentrically. It can be
used to minimize the effect of
turbulence in a vessel and
increases the capacitance gain
by bringing the ground reference
closer to the probe.
HEAT EXTENSION
Heat dissipation graph
For use with Heat extension (89-6593-001)
70 °C
Ambient air temperature at heat extension
BARE RIGID PROBES FOR
NON CONDUCTIVE MEDIA
65 °C
60 °C
55 °C
50 °C
45 °C
40 °C
35 °C
30 °C
25 °C
20 °C
15 °C
0 °C
90 °C
200 °C
300 °C
Process temperature
Refer to page 3 for instructions how to use this chart
pF per
cm (inch)
8.0 (20)
Stillwell
7.2 (18)
6.4 (16)
5.6 (14)
4.8 (12)
4.0 (10)
3.2
(8)
2.4
(6)
1.6
(4)
0.8
(2)
0
(0)
Tank diameter
cm (inches)
10 (4)
30 (12)
60 (24)
120 (48)
240 (96)
1
6
2
3
4
5
6
7
Dielectric value of media
8
9
10
500 °C
The heat dissipation graph depicts the maximum temperatures at which the extension, P/N 89-6593-001 can be
used effectively.
1. Determine the maximum process temperature in the
application and locate on X axis.
2. Determine the maximum ambient temperature surrounding the heat extension and locate on the Y axis.
3. If the intersecting point on the graph is within the shaded area the heat extension will dissipate enough heat
to keep the electronics temperature below +70 °C
(+160 °F).
NOTE: The heat extension may be used with all rigid
probe configurations and the flexible probe configuration
8C2-AA1A-0xx. The heat extension can not be used with
guarded probes.
Capacitance gain chart for bare probes
8xB-xxxx-xxx or 8xC-xxxx-xxx
(Digit "x" represents all possible combinations)
400 °C
254 (10.00)
SELECTION DATA: BARE PROBES (for non conductive media)
A complete measuring system consists of:
1. KOTRON® amplifier. See bulletin BE 50-1xx
2. KOTRON® Probe
3. KOTRON® Bent probe: specify L1 and L2 lengths in mm (see page 6)
4. OPTION: Heat extension for process temperatures > 95 °C (200 °F): P/N: 089-6593-001 (see page 6)
2. Order code for BARE RIGID PROBES
BASIC MODEL NUMBER
8 C B
8 C C
Standard BARE probe ➀
High Temperature/High Pressure BARE probe ➁
➀ Max 200 °C @ 13.8 bar/max 205 bar @ 40 °C (max 400 °F @ 200 psig/max 3000 psig @ 100 °F)
➁ Max 540 °C @ 35.0 bar/max 345 bar @ 40 °C (max 1000 °F @ 500 psig/max 5000 psig @ 100 °F)
MATERIALS
A A
B B
316 SST (1.4401) rod with Teflon seal (standard probe) or ceramic seal (high temp/high pressure)
Hastelloy C (2.4819) rod with Teflon seal (standard probe) ➀
➀ Not for probe with stillwell - configuration style “B”
THREADED PROCESS CONNECTION – 316/316L (1.4401/1.4404) or Hastelloy C (2.4819)
1
2
E
3/4" NPT - thread (not for probe with stillwell - configuration style “B”)
1" NPT - thread
G1 (1" BSP) - thread
4
5
6
7
8
9
A
B
C
D
1"
1 1/2"
2"
3"
4"
1"
1 1/2"
2"
3"
4"
ANSI FLANGED PROCESS CONNECTION – 316/316L (1.4401/1.4404) or Hastelloy C (2.4819)
150 lbs RF flange ➁
150 lbs RF flange
150 lbs RF flange
150 lbs RF flange
150 lbs RF flange
300 lbs RF flange ➁
300 lbs RF flange
300 lbs RF flange
300 lbs RF flange
300 lbs RF flange
EN (DIN) FLANGED PROCESS CONNECTION – 316/316L (1.4401/1.4404) or Hastelloy C (2.4819)
L
M
K
N
DN 25
DN 40
DN 50
DN 50
PN 16/25/40
PN 16/25/40
PN 16
PN 25/40
EN 1092-1 Type A ➁
EN 1092-1 Type A
EN 1092-1 Type A
EN 1092-1 Type A
➁ Not for 8Cx-xxxB-xxx probes
CONFIGURATION STYLE
A
B
D
Bare Probe in 316 SST (1.4401)
Bare Probe with 25 mm (1") diameter stillwell in 316 SST (1.4401)
Bent probe 90° (specify L1 and L2 seperately)
INSERTION LENGTH (specify length per 1 cm (0,39") increments)
0 1 5
Minimum length of 15 cm (6")
0 1 8
Minimum length of 18 cm (7") for probes with G1 connection
5 9 5
Maximum length of 595 cm (234")
8 C
X = product with a specific customer requirement
7
GUARDED PROBE
Guarded probes are only used for switch function in applications with extreme build up. The guarded probes
require additional coating rejection circuitry and can only
be used with the following Kotron amplifiers: Kotron 810
and Kotron 811.
The guarded probe can be cut to length but requires a
minimum of 102 mm (4") below the lower probe insulation.
SELECTION DATA: GUARDED PROBE
A complete measuring system consists of:
1. KOTRON® amplifier. See bulletin BE 50-1xx
2. KOTRON® Probe
2. Order code for GUARDED RIGID PROBES
BASIC MODEL NUMBER
8 C D
Guarded probe
max 200 °C @ 17 bar / 240 bar @ 40 °C (max 400 °F @ 250 psig / 3500 psig @ 100 °F)
MATERIAL (316/316L - 1.4401/1.4404 mounting nut)
A A
316/316L SST (1.4401/1.4404) rod with Ryton guard insulation
THREADED PROCESS CONNECTION (consult factory for threaded flanges)
1
E
3/4" NPT - thread
G1 (1" BSP) - thread
CONFIGURATION STYLE
A
Standard Bare Probe in 316 SST (1.4401)
INSERTION LENGTH
0 4 5
45 cm (18")
0 4 8
48 cm (19")
0 9 2
92 cm (36")
0 9 4
94 cm (37")
8 C D
8
A A
A
0
for
for
for
for
X = product with a specific customer requirement
3/4" NPT
G1 (1" BSP)
3/4" NPT
G1 (1" BSP)
FLEXIBLE PROBES FOR CONDUCTIVE AND NON CONDUCTIVE MEDIA
Rigid probes longer than 3 m (10') are difficult to install
and to physically move in the field. Flexible probes are the
ideal solution for measuring ranges for 3 m (10') up to
45 m (150'). Always check whether the selected amplifier
is powerful enough to cover for these longer distances.
Check this out by means of the below chart.
Insulated flexible probes can be used on either conductive
as non conductive media.
Capacitance gain chart for flexible probe
Refer to page 3 for instructions how to use this chart
5 mm (0.19") probe diameter
pF per
cm (inch)
2.8 (7)
Tank diameter
cm (inches)
10 (4)
30 (12)
60 (24)
120 (48)
240 (96)
2.4 (6)
2.0 (5)
1.6 (4)
1.2 (3)
0.8 (2)
0.4 (1)
0
(0)
10
20
30
40
50
60
Dielectric value of media
70
80
SELECTION DATA: FLEXIBLE PROBES (for conductive and non conductive media)
A complete measuring system consists of:
1. KOTRON® amplifier. See bulletin BE 50-1xx
2. KOTRON® Probe
3. OPTION: Anchor assembly:
P/N: 032-8814-001
Weight:
P/N: 004-4355-001
Kynar insulated weight:
P/N: 032-8902-001
2. Order code for INSULATED FLEXIBLE PROBES
BASIC MODEL NUMBER
8 C 1
Insulated flexible probe ➀
➀ Max 140 °C @ 3.8 bar/max 7 bar @ 70 °C (max 285 °F @ 50 psig/max 100 psig @ 160 °F)
MATERIAL (316/316L - 1.4401/1.4404 mounting nut)
5 A
316 SST (1.4401) with Halar (ECTFE) coating
THREADED PROCESS CONNECTION (Consult factory for threaded flanges)
1
3/4" NPT - thread
CONFIGURATION STYLE
A
Insulated Flexible Probe
INSERTION LENGTH (specify length per 1 m (3.28') increments)
0 0 3
Minimum length of 3 m (10')
0 4 5
Maximum length of 45 m (150')
8 C 1
5 A 1 A
0
X = product with a specific customer requirement
9
FLEXIBLE PROBES FOR NON CONDUCTIVE MEDIA
Rigid probes longer than 3m (10') are difficult to install and
to physically move/ stock in the field. Flexible probes are
the ideal solution for measuring ranges for 3m up to 45m.
Always check whether the selected amplifier is powerful
enough to cover for these longer distances. Check this out
by means of the below chart.
Bare flexible probes can only be used on non conductive
media.
Capacitance gain chart for bare flexible probe
Refer to page 3 for instructions how to use this chart
5 mm (0.19") probe diameter
pF per
cm (inch)
1.6 (4)
Tank diameter
cm (inches)
10 (4)
1.2 (3)
30 (12)
60 (24)
120 (48)
240 (96)
0.8 (2)
0.4 (1)
0
(0)
1
2
3
4
5
6
Dielectric value of media
7
8
SELECTION DATA: FLEXIBLE PROBES (for non conductive media)
A complete measuring system consists of:
1. KOTRON® amplifier. See bulletin BE 50-1xx
2. KOTRON® Probe
3. OPTION: Anchor assembly: P/N: 032-8814-001
Weight:
P/N: 004-4355-001
4. OPTION: Heat extension for process temperatures > 95 °C (200 °F): P/N: 089-6593-001 (see page 6)
2. Order code for BARE FLEXIBLE PROBES
BASIC MODEL NUMBER
8 C 2
Standard bare flexible probe
max 345 °C @ 35 bar / 345 bar @ 40 °C (max 650 °F @ 500 psig / 5000 psig @ 100 °F)
MATERIAL (316/316L - 1.4401/1.4404 mounting nut)
A A
316 SST (1.4401)
THREADED PROCESS CONNECTION
1
3/4" NPT - thread
CONFIGURATION STYLE
A
Bare Flexible Probe
INSERTION LENGTH (specify length per 1 m (3.28') increments)
0 0 3
Minimum length of 3 m (10')
0 4 5
Maximum length of 45 m (150')
8 C 2
10
A A 1 A
0
X = product with a specific customer requirement
MAGNESEAL® PROBES
Probes are an essential component of the RF
Capacitance measurement system. They are critical in
development of the proper “capacitor” for reliable level
measurement. As importantly, the probe becomes part of
the process seal of the vessel; its reliability is crucial.
With the development of the Magneseal probe,
Magnetrol has taken strides to further ensure this reliability.
➁
The Magneseal probe offers the following advantages:
1. A sophisticated compression seal exerts radial pressure between the center rod and the mounting nut
yielding bulletproof sealing up to 3000 psig (205 bar).
2. Spring washers maintain the seal particularly during
varying temperature and pressure that can degrade
other process seals.
➀
3. The Teflon (TFE) probe insulation is heat-treated
which forms the material tight to the probe rod yielding
better linearity eliminates “stress-relieving” (elongation) of the material at elevated temperatures.
4. Stability of the outer jacket is maintained by the end of
probe barb which further secures the insulating jacket.
➂
The Magneseal design takes a giant step toward reliability; a probe design that can be installed and forgotten.
➃
DIMENSIONS in mm (Inches)
guarded probe
rigid probe
Optional
Mounting
Flange
Optional
Mounting
Flange
3/4" NPT
1G (1" BSP)
flexible probe
150 (6.00)
3/4" NPT
1" NPT
1G (1" BSP)
19 (0.75)
Insertion length
Insertion length
Optional
Mounting
Flange
3/4" NPT
Optional
Anchor
Assembly
5 (0.1875)
6 (0.2500)
124
(4.87)
75
(2.95)
127 (5.00)
10 (0.375)
13 (0.50) - bare probe
16 (0.625) - insulated probe
19
(0.79)
34
(1.32)
Optional
Weight
11
CONNECTIONS
Insertion
length
Insertion
length
Insertion
length
Welded flange ANSI / EN (DIN)
Threaded
NPT
Threaded
BSP
Insertion
length
Insertion
length
DIN 11851
Tri-Clamp®
QUALITY ASSURANCE - ISO 9001:2000
THE QUALITY ASSURANCE SYSTEM IN PLACE AT MAGNETROL GUARANTEES THE HIGHEST LEVEL OF QUALITY DURING THE
DESIGN, THE CONSTRUCTION AND THE SERVICE OF CONTROLS.
OUR QUALITY ASSURANCE SYSTEM IS APPROVED AND CERTIFIED TO ISO 9001:2000 AND OUR TOTAL COMPANY IS COMMITTED TO
PROVIDING FULL CUSTOMER SATISFACTION BOTH IN QUALITY PRODUCTS AND QUALITY SERVICE.
PRODUCT WARRANTY
:2008
ALL MAGNETROL ELECTRONIC AND ULTRASONIC LEVEL CONTROLS ARE WARRANTED FREE OF DEFECTS IN MATERIALS AND WORKMANSHIP FOR ONE FULL YEAR FROM THE DATE OF ORIGINAL FACTORY SHIPMENT. IF RETURNED WITHIN THE WARRANTY PERIOD; AND, UPON FACTORY INSPECTION OF THE CONTROL, THE CAUSE OF THE CLAIM IS DETERMINED TO BE COVERED UNDER THE WARRANTY; THEN, MAGNETROL INTERNATIONAL WILL REPAIR OR
REPLACE THE CONTROL AT NO COST TO THE PURCHASER (OR OWNER) OTHER THAN TRANSPORTATION.
MAGNETROL SHALL NOT BE LIABLE FOR MISAPPLICATION, LABOR CLAIMS, DIRECT OR CONSEQUENTIAL DAMAGE OR EXPENSE ARISING FROM THE INSTALLATION
OR USE OF THE EQUIPMENT. THERE ARE NO OTHER WARRANTIES EXPRESSED OR IMPLIED, EXCEPT, SPECIAL WRITTEN WARRANTIES COVERING SOME
MAGNETROL PRODUCTS.
BULLETIN N°:
EFFECTIVE:
SUPERSEDES:
UNDER RESERVE OF MODIFICATIONS
Heikensstraat 6, 9240 Zele, België -Belgique
Tel. +32 (0)52.45.11.11 • Fax. +32 (0)52.45.09.93 • E-Mail: [email protected]
DEUTSCHLAND
Alte Ziegelei 2-4, D-51491 Overath
Tel. +49 (0)2204 / 9536-0 • Fax. +49 (0)2204 / 9536-53 • E-Mail: [email protected]
INDIA
B-506, Sagar Tech Plaza, Saki Naka Junction, Andheri (E), Mumbai - 400072
Tel. +91 22 2850 7903 • Fax. +91 22 2850 7904 • E-Mail: [email protected]
ITALIA
Via Arese 12, I-20159 Milano
Tel. +39 02 607.22.98 • Fax. +39 02 668.66.52 • E-Mail: [email protected]
RUSSIA
198095 Saint-Petersburg, Marshala Govorova street, house 35A, office 427
Tel. +7 812 320 70 87 • E-Mail: [email protected]
U.A.E.
UNITED
KINGDOM
DAFZA Office 5EA 722 • PO Box 293671 • Dubai
Tel. +971-4-6091735 • Fax +971-4-6091736 • E-Mail: [email protected]
Unit 1 Regent Business Centre, Jubilee Road Burgess Hill West Sussex RH 15 9TL
Tel. +44 (0)1444 871313 • Fax +44 (0)1444 871317 • E-Mail: [email protected]
www.magnetrol.com
BENELUX
FRANCE
OUR NEAREST REPRESENTATIVE
BE 50-125.6
JANUARY 2016
July 2001