Kotron© RF 2-Wire - Magnetrol International

®
The Kotron 2-Wire R.F. capacitance transmitter is one of the
most cost effective level transmitters available today.
Compact in size, it employs state of the art technology for a
stable, accurate signal in a wide range of materials.
KOTRON ®
R.F. 2-WIRE
Level Transmitter
Stable 4-20 mA analog signal
FEATURES
* Uses state of the art technology to provide a stable,
more accurate signal.
* 4-20 mA isolated output signal.
* Utilizes a 24 V DC current loop for power source and
signal transmission.
* Input voltage of 14 to 40 V DC at transmitter terminals.
* Potted electronics are vibration resistant, protect electronics from the environment and allow easier wiring.
Has
integral metering points to allow the local
*
measurement of 4-20 mA loop current without breaking
the two-wire circuit loop.
Power
indicator LED varies in brightness with level
*
changes.
* Available with a full range of rigid and flexible sensing
probes to 345 bar (5000 PSIG) and 540 °C (1000°F).
APPLICATIONS
• Clean or Dirty Liquids
• Viscous Liquids
• Light Slurries
• Corrosive Liquids
• High Temperature Liquids
• Chemicals
• Hydrocarbons & Solvents
• Food & Beverage
• Powders & Granulars
AGENCY APPROVALS
Agency
Approval
ATEX
II 1 G Ex ia IIC T6 Ga, intrinsically safe
FM/CSAŒ
Other approvals are available, consult factory for more details
Œ Consult factory for proper model numbers and classifications.
Worldwide level and flow solutions
PRINCIPLE OF OPERATION
The amount of capacitance developed in any vessel, is
determined by the size (surface area) of the probe, the
distance from the probe to its ground reference (e.g. tank
wall), and the dielectric of the medium it is measuring.
If the probe’s mounting position is fixed, and the dielectric
value of the medium is constant, then the amount of
capacitance developed in any vessel becomes dependent
upon the probe’s total surface area. Both a probe’s diameter and length determine it’s surface area.
Adjusting the combination of the probe’s diameter and
length (and of course its proximity to ground) in any given
application can generate the necessary capacitance
required by the electronic circuitry.
As media rises and falls in the tank, the amount of
capacitance developed between the sensing probe and
the ground also rises and falls. This change in capacitance
is converted into a pulse wave form, proportional to the
change in level. The amplifier then converts the proportional pulse signal into a 4-20 mA output signal.
INTERFACE APPLICATION – EXAMPLE
}
Oil
}
Water
ELECTRICAL DATA
Loop Resistance vs. Power Supply Voltage
1300
1300 ohms
@ 40V
MAXIMUM LOOP RESISTANCE (Ohms)
(Including Barrier Resistance)
1200
1100
1000
900
800
700
600
500
500 ohms at 24V
400
300
200
100
0
12 14 16 18 20 22 24 26 28 30 32 34 36 38 40
Power Supply Voltage (Volts)
will be ignored
will be measured
SELECTION DATA
A complete measuring system consists of:
1. Order code for KOTRON® electronics
2. Probe selection; a full range of rigid and flexible probes for conductive and non-conductive media is available
(see bulletin BE 50-125)
Order code for KOTRON® electronics
0 8 2 - 8 4
24 V DC, 2-wire KOTRON® electronics, intrinsically safe version
TRANSMITTER
0
1
Blind transmitter
Transmitter with local indicator (Select code 0 in housing selections)
OUTPUT SIGNAL
3
4
4 to 20 mA output (direct action)
20 to 4 mA output (reverse action)
HOUSING / IP 66
0
1
4
0 8 2
8 4
4 0
3/4" NPT cable entry, aluminium (1" NPT with local indicator)
M20 x 1,5 cable entry, aluminium (no local indicator available)
3/4" NPT cable entry, stainless steel (no local indicator available)
complete order code for KOTRON® R.F. 2-wire electronics,
intrinsically safe version
X = product with a specific customer requirement
ELECTRICAL SPECIFICATIONS
Description
Supply Voltage
Current
Line Variation
Ambient Temperature
Zero Range
Specification
14 to 40 V DC
38 mA max.
Less than ± 0.10%/V, for voltages between 14 to 40 V DC
-40°C to +70°C (-40°F to +160°F)
1000 pF (Max.)
1000 pF (Min.)
Span Range
4000 pF (Max.)
1050 pF (Min.)
Response Time
Less than 0.1 s
Output Linearity
Repeatability
Temperature Coefficient of Output
-40°C to +70°C (-40°F to +160°F)
50- 500 pF ± 1 % of SPAN
501-1500 pF ± 2 % of SPAN
1501-4000 pF ± 1 % of SPAN
Better than ± 1.0%
4000 pF span: Less than 0.063%/°C (0.035%/°F)
1000 pF span: Less than 0.045%/°C (0.025%/°F)
1050 pF span: Less than 0.135%/°C (0.075%/°F)
DIMENSIONS IN mm (inches)
INTEGRAL MOUNT
NOTES: Allow 102 (4.00) overhead clearance for cover removal.
Blind transmitter
with rigid probe
ø 118
(4.63)
Transmitter with
analog meter
with rigid probe
76
(3.00)
ø 118
(4.63)
70 (2.75)
Optional
Mounting
Flange
*
*
Optional
Mounting
Flange
3/4" NPT or
M20 x 1.5
Probe ø
102 (4.00) - 10 (.375)
127 (5.00) - 13 (.50)
16 (.625)
76
(3.00)
1" NPT
*
*
Insertion length:
15 cm to 3 m (6" to 10')
consult factory for longer lengths
Probe ø
102 (4.00) - 10 (.375)
127 (5.00) - 13 (.50)
16 (.625)
Insertion length:
15 cm to 3 m (6" to 10')
consult factory for longer lengths
10 (.375)
13 (.50)
16 (.625)
Blind transmitter
with flexible probe
ø 321
(12.65)
10 (.375)
13 (.50)
16 (.625)
3/4" NPT or
M20 x 1.5
Optional
Mounting
Flange
119
G
(4.67)
13 (0.50)
Typ.
3/4" NPT
3 (0.1250)
5 (0.1875)
6 (0.2500)
Optional
Anchor
Assembly
75
(2.95)
124
(4.87)
127
(5.00)
Insertion length:
3 m to 45 m (10' to 145')
consult factory for longer lengths
Optional
34 Weight
(1.32)
19
(0.79)
QUALITY ASSURANCE - ISO 9001:2008
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 9001:2008 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
C-20 Community Centre, Janakpuri, New Delhi - 110 058
Tel. +91 (11) 41661840 • Fax +91 (11) 41661843 • 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 343
Tel. +7-812.702.70.87 • 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 50-123.12
OCTOBER 2013
August 2004