® 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/CSA Other approvals are available, consult factory for more details 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