Pepperl+Fuchs Pulscon LTC51 Technical Information
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Pepperl+Fuchs Pulscon LTC51 Technical Information

Guided level radar
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PROCESS AUTOMATION
TECHNICAL INFORMATION
Pulscon LTC51
Guided Level Radar
ISO9001
3

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Summary of Contents for Pepperl+Fuchs Pulscon LTC51

  • Page 1 PROCESS AUTOMATION TECHNICAL INFORMATION Pulscon LTC51 Guided Level Radar ISO9001...
  • Page 2 Pulscon LTC51 With regard to the supply of products, the current issue of the following document is applicable: The General Terms of Delivery for Products and Services of the Electrical Industry, published by the Central Association of the Electrical Industry (Zentralverband Elektrotechnik und Elektroindustrie (ZVEI) e.V.) in its most recent version as well as the supplementary clause:...

  • Page 3: Table Of Contents

    Pulscon LTC51 Content Important document information ........7 Symbols .
  • Page 4 Pulscon LTC51 Content Performance characteristics ........36 Reference operating conditions .
  • Page 5 Pulscon LTC51 Content 10 Mechanical construction........70 10.1 Dimensions.
  • Page 6 Pulscon LTC51 Content 13 Ordering information......... . . 93 13.1 Design.

  • Page 7: Important Document Information

    Pulscon LTC51 Important document information Important document information Symbols 1.1.1 Symbols used This document contains information that you must read for your own personal safety and to avoid property damage. Depending on the hazard category, the warning signs are displayed in...
  • Page 8 Pulscon LTC51 Important document information 1.1.2 Electrical symbols Symbol Meaning Direct current A terminal to which DC voltage is applied or through which direct current flows. Alternating current A terminal to which alternating voltage is applied or through which alternating current flows.

  • Page 9: Function And System Design

    Pulscon LTC51 Function and system design Function and system design Measuring principle 2.1.1 Basic principles The device is a "downward-looking" measuring system that functions according to the ToF method (ToF = Time of Flight). The distance from the reference point to the product surface is measured.

  • Page 10: Life Cycle Of The Product

    • Universal measuring principle • Measurement unaffected by medium properties • Hardware and software developed according to SIL IEC 61508 Procurement • Pepperl+Fuchs being the world market leader in level measurement guarantees asset protection • Worldwide support and service Installation •...
  • Page 11 Pulscon LTC51 Function and system design Commissioning • Fast, menu-guided commissioning in only 6 steps • Plain text display in national languages reduces the risk of error or confusion • Direct local access of all parameters • Short instruction manual at the device Operation •...

  • Page 12: Measuring System

    Maximum probe length for indivisible rod probes: 4 m (13 ft) If required, rod and rope probes can be replaced. They are secured with Nord-Lock washers or a thread coating. For further information on service and spare parts please contact the Pepperl+Fuchs service.

  • Page 13: Input

    Pulscon LTC51 Input Input Measured variable The measured variable is the distance between the reference point and the product surface. Subject to the empty distance entered E the level is calculated. Alternatively, the level can be converted into other variables (volume, mass) by means of linearization (32 points).

  • Page 14: Blocking Distance

    Pulscon LTC51 Input Blocking distance The upper blocking distance (= UB) is the minimum distance from the reference point of the measurement (mounting flange) to the maximum level. 100% Figure 3.1 Definition of blocking distance and safety distance Reference point of measurement...

  • Page 15: Output

    Pulscon LTC51 Output Output Output signal HART Signal coding FSK ±0.5 mA over currency signal Data transmission rate 1200 Baud Galvanic isolation Table 4.1 PROFIBUS PA Signal coding Manchester Bus Powered (MBP) Data transmission rate 31.25 kBit/s, voltage mode Galvanic isolation Table 4.2...

  • Page 16: Signal On Alarm

    Pulscon LTC51 Output Signal on alarm Depending on the interface, failure information is displayed as follows: • Current output (for HART devices) • Fail-safe mode selectable (in accordance with NAMUR Recommendation NE 43): Minimum alarm: 3.6 mA Maximum alarm (= factory setting): 22 mA •...

  • Page 17: Protocol-Specific Data

    Pulscon LTC51 Output Protocol-specific data HART Manufacturer ID 17 (0x11) Device type ID 0x34 HART specification Device description files Information and files under: (DTM, DD) • www.pepperl-fuchs.com • www.hartcomm.org HART load Min. 250 HART device variables The measured values can be freely assigned to the device variables.
  • Page 18 Pulscon LTC51 Output PROFIBUS PA Manufacturer ID 93 (5D HEX) Ident number 0E3B HEX Profile version 3.02 GSD file Information and files under: • www.pepperl-fuchs.com GSD file version • www.profibus.org Output values Analog Input: • Level linearized • Distance • Terminal voltage •...

  • Page 19: Power Supply

    Pulscon LTC51 Power supply Power supply Terminal assignment 2-wire: 4 ... 20 mA HART – – 4 ... 20 mA Figure 5.1 Terminal assignment 2-wire; 4 ... 20 mA HART Active barrier with power supply (e. g. KCD2-STC-Ex1): observe terminal voltage HART communication resistor (...
  • Page 20 Pulscon LTC51 Power supply 2-wire: 4 ... 20mA HART, switch output – ≥ 250 Ω 4 ... 20 mA Figure 5.2 Terminal assignment 2-wire; 4 ... 20mA HART, switch output Active barrier with power supply (e. g. KCD2-STC-Ex1): observe terminal voltage HART communication resistor (...
  • Page 21 Pulscon LTC51 Power supply 2-wire: 4 ... 20 mA HART, 4 ... 20 mA – 4 ... 20 mA – 4 ... 20 mA Figure 5.3 Terminal assignment 2-wire, 4 ... 20 mA HART, 4 ... 20 mA Connection current output 2 Connection current output 1 Supply voltage for current output 1 (e.
  • Page 22 Pulscon LTC51 Power supply 4-wire: 4 ... 20 mA HART (10.4 ... 48 V DC) 250Ω 4 ... 20 mA Figure 5.4 Terminal assignment 4-wire; 4 ... 20mA HART (10.4 ... 48 V DC) Evaluation unit, e. g. PLC HART communication resistor ( 250 ): observe maximum load...
  • Page 23 Pulscon LTC51 Power supply Note! In order to ensure electromagnetic compatibility (EMC): Do not only ground the device via the protective earth conductor of the supply cable. Instead, the functional grounding must also be connected to the process connection (flange or threaded connection) or to the external ground terminal.
  • Page 24 Pulscon LTC51 Power supply 4-wire: 4 ... 20 mA HART (90 ... 253 V AC) ≥ 250Ω 4 ... 20 mA Figure 5.5 Terminal assignment 4-wire; 4 ... 20 mA HART (90 ... 253 V AC) Evaluation unit, e. g. PLC HART communication resistor (...
  • Page 25 Pulscon LTC51 Power supply Note! In order to ensure electromagnetic compatibility (EMC): Do not only ground the device via the protective earth conductor of the supply cable. Instead, the functional grounding must also be connected to the process connection (flange or threaded connection) or to the external ground terminal.
  • Page 26 Pulscon LTC51 Power supply PROFIBUS PA Figure 5.6 Terminal assignment PROFIBUS PA Cable screen: observe cable specifications Switch output (open collector): terminals 3 and 4 Connection PROFIBUS PA: terminals 1 and 2 Terminal for potential equalization line Cable entries...
  • Page 27 Pulscon LTC51 Power supply Connection examples for the switch output Note! For HART devices, the switch output is available as an option. See product structure, feature "Electrical Output", option ID. Devices with PROFIBUS PA always have a switch output. Connection of a relay...

  • Page 28: Hart Loop Converter Kfd2-Hlc-Ex1.D

    Pulscon LTC51 Power supply HART Loop Converter KFD2-HLC-Ex1.D.** The dynamic variables of the HART protocol can be converted into individual 4 to 20 mA sections using the HART loop converter KFD2-HLC-Ex1.D.**. The variables are assigned to the current output and the measuring ranges of the individual parameters are defined in the KFD2-HLC-Ex1.D.**.

  • Page 29: Device Plug Connectors

    Pulscon LTC51 Power supply Device plug connectors Note! For the versions with fieldbus plug connector (M12 or 7/8 in), the signal line can be connected without opening the housing. Pin assignment of the M12 plug connector Meaning Signal + not connected...

  • Page 30: Power Supply

    Power supply Power supply An external power supply is required. Note! Various supply units can be ordered from Pepperl+Fuchs: see chapter 14.4. 2-wire, 4 ... 20 mA HART, passive Approval Terminal voltage U at the Maximum load R, depending on the supply voltage...
  • Page 31 Pulscon LTC51 Power supply 2-wire; 4 ... 20 mA HART, switch output Approval Terminal voltage U at the Maximum load R, depending on the supply voltage device at the supply unit • Non-Ex 12 ... 35 V R [Ω] • Ex nA •...
  • Page 32 Pulscon LTC51 Power supply 2-wire; 4 ... 20 mA HART, 4 ... 20 mA Approval Terminal voltage U at the Maximum load R, depending on the supply voltage device at the supply unit Channel 1: 13.5 ... 30 V R [Ω] 13.5...
  • Page 33 Pulscon LTC51 Power supply 4-wire, 4 ... 20 mA HART, active Electrical Output Terminal voltage U Maximum load R AH: 4-wire 90 ... 253 V AC; 90 ... 253 V AC (50 ... 60 Hz), 500  4 ... 20 mA HART overvoltage category II DH: 4-wire 10.4 ...

  • Page 34: Power Consumption

    Pulscon LTC51 Power supply Power consumption Electrical output Power consumption IH: 2-wire; 4 ... 20 mA HART < 0.9 W ID: 2-wire; 4 ... 20 mA HART, switch output < 0.9 W IE: 2-wire; 4 ... 20 mA HART, 4 ... 20 mA <...

  • Page 35: Cable Entries

    Pulscon LTC51 Power supply 5.10 Cable entries Connection of power supply and signal line To be selected in feature "Electrical Connection" • Gland M20; material dependent on the approval: • For Non-Ex, ATEX, IECEx, NEPSI Ex ia/ic: plastics M20 x 1.5 for cable Ø5 ... 10 mm (0.2...0.39 in) •...

  • Page 36: Performance Characteristics

    Pulscon LTC51 Performance characteristics Performance characteristics Reference operating conditions • Temperature = + 24 °C (+75 °F) ±5 °C (9 °F) • Pressure = 960 mbar abs. (14 psia) ±100 mbar (1.45 psi) • Humidity = 60 % ±15 % •...
  • Page 37 Pulscon LTC51 Performance characteristics Differing from this, the following measuring error is present in the vicinity of the lower probe end: 80 (3.15) 60 (2.36) DC = 2 40 (1.57) DC = 80 20 (0.79) -20 (-0.79) -40 (-1.57) -60 (-2.36) -80 (-3.15)
  • Page 38 Pulscon LTC51 Performance characteristics 120 (4.72) 100 (3.94) DC = 2 80 (3.15) 60 (2.36) DC = 80 40 (1.57) 20 (0.79) -20 (-0.79) -40 (-1.57) -60 (-2.36) -80 (-3.15) -100 (-3.94) -120 (-4.72) Figure 6.3 Measuring error at the end-of-probe for probes with a metallic centering disk...

  • Page 39: Resolution

    Pulscon LTC51 Performance characteristics In the area of the upper probe end, the measuring error is as follows (rod/rope only): 40 mm 30 mm DC = 2 DC = 80 20 mm 10 mm 2 mm 0 mm - 2 mm...

  • Page 40: Influence Of Ambient Temperature

    Pulscon LTC51 Performance characteristics Influence of ambient temperature The measurements are carried out in accordance with EN 61298-3 • digital (HART, PROFIBUS PA): average T = 0.6 mm/10 K For devices with remote sensor there is an additional offset of ±0.3 mm/10K (0.01 in/10 K) per1 m (3.3 ft) of the remote cable.

  • Page 41: Gas Phase Compensation With External Pressure Sensor (Profibus Pa)

    Pulscon LTC51 Performance characteristics Gas phase compensation with external pressure sensor (PROFIBUS PA) PROFIBUS devices can receive the signal of an external pressure sensor through the bus and use it to perform a pressure dependent time-of-flight correction. In the case of saturated steam in the temperature range from 100 ...

  • Page 42: Mounting

    Pulscon LTC51 Mounting Mounting Mounting requirements 7.1.1 Suitable mounting position Figure 7.1 Mounting requirements Mounting distances • Distance (A) between wall and rod or rope probe: • for smooth metallic walls: > 50 mm (2 in) • for plastic walls: > 300 mm (12 in) to metallic parts outside the vessel •...
  • Page 43 Pulscon LTC51 Mounting Additional conditions • When mounting in the open, a weather protection cover (1) may be installed to protect the device against extreme weather conditions. • In metallic vessels: Preferably do not mount the probe in the center of the vessel (2), as this would lead to increased interference echoes.
  • Page 44 Pulscon LTC51 Mounting 7.1.2 Applications with restricted mounting space Mounting with remote sensor The device version with a remote sensor is suited for applications with restricted mounting space. In this case the electronics housing is mounted at a separate position from which it is easier accessible.
  • Page 45 Pulscon LTC51 Mounting Divisible probes 14 mm 14 mm Figure 7.3 If there is little mounting space (distance to the ceiling), it is advisable to use divisible rod probes (Ø16 mm). • max. probe length 10 m (394 in) • max. sideways capacity 30 Nm •...
  • Page 46 Pulscon LTC51 Mounting 7.1.3 Notes on the mechanical load of the probe Tensile load limit of rope probes Feature "Probe" Probe Tensile load limit [kN] Option 2, 3, E, F Rope 4 mm (1/6 in) 316 Table 7.1 Bending strength of rod probes Feature "Probe"...
  • Page 47 Pulscon LTC51 Mounting Bending torque [M] on rod probes, diameter 8 mm (1/3”) 20.0 18.0 16.0 14.0 12.0 10.0 v = 0.5 m/s v = 0.7 m/s v = 1.0 m/s Probe length [ ] in meters Figure 7.4 Bending strength of coax probes Feature "Probe"...
  • Page 48 Pulscon LTC51 Mounting 7.1.4 Notes on the process connection Probes are mounted to the process connection with threaded connections or flanges. If during this installation there is the danger that the probe end moves so much that it touches the tank floor or cone at times, the probe must, if necessary, be shortened and fixed down.
  • Page 49 Pulscon LTC51 Mounting Nozzle mounting ø ≤150 (6) mm (in) Figure 7.6 • Permissible nozzle diameter:  150 mm (6 in). For larger diameters the near range measuring capability may be reduced. For nozzles  DN300: see next section. • Permissible nozzle height : ...
  • Page 50 Pulscon LTC51 Mounting Installation in nozzles  DN300 If installation in  300mm/12 in nozzles is unavoidable, installation must be carried out in accordance with the following sketch. Figure 7.7 Lower edge of the nozzle Approx. flush with the lower edge of the nozzle (±50 mm/2 in)
  • Page 51 Pulscon LTC51 Mounting Mounting cladded flanges For usage of cladded flanges, observe the following: • Use flange screws according to the number of flange holes. • Tighten the screws with the required torque (see table). • Retighten the screws after 24 hours or after the first temperature cycle.
  • Page 52 Pulscon LTC51 Mounting 7.1.5 Securing the probe Securing rope probes Figure 7.8 Sag of the rope:  1 cm per 1 m of the probe length (0.12 in per 1 ft of the probe length) Reliably grounded end of probe...
  • Page 53 Pulscon LTC51 Mounting Securing rod probes • For Ex-approvals: For probe lengths  3 m (10 ft) a support is required. • In general, rod probes must be supported if there is a horizontal flow (e. g. from an agitator) or in the case of strong vibrations.
  • Page 54 Pulscon LTC51 Mounting Warning! Poor grounding of the end of probe may cause measuring errors. • Apply a narrow sleeve which has good electrical contact to the probe. Warning! Welding may damage the main electronics module. • Before welding: Ground the probe and dismount electronics.
  • Page 55 Pulscon LTC51 Mounting Special mounting conditions Bypasses and stilling wells øD Figure 7.11 Mounting in a stilling well Mounting in a bypass Center washer or centering star (on request) Metallic center washer (316L) for level measurement (on request) Fixing screw; torque: 25 Nm ±5 Nm Non-metallic centering star (PEEK, PFA) for interface measurement (on request) Minimum distance between end of probe and lower edge of the bypass;...
  • Page 56 For rope probes with a length exceeding 2 m (6.7 ft) an additional weight or a spring should be mounted in addition to the center a washer in order to tighten the rope. Note! For information on bypass solutions from Pepperl+Fuchs please contact your Pepperl+Fuchs sales representative.
  • Page 57 Pulscon LTC51 Mounting Installation in horizontal and upright cylindrical tanks Figure 7.12 • Any distance from wall, as long as occasional contact is prevented. • When installing in tanks with a lot of internals or internals situated close to the probe: use a coax probe (1), (2).
  • Page 58 Pulscon LTC51 Mounting Installation at an angle α Figure 7.14 • For mechanical reasons, the probe should be installed as vertically as possible. • With inclined installations the probe length has to be adjusted in dependence to the installation angle.
  • Page 59 Pulscon LTC51 Mounting Plastic or glass tanks: Mounting the probe externally at the wall For plastic and glass tanks, the probe can also be mounted on the outside wall under specific conditions. Figure 7.16 Plastic or glass tank Metal sheet with threaded sleeve...
  • Page 60 Pulscon LTC51 Mounting Vessels with heat insulation Note! If process temperatures are high, the device must be included in normal tank insulation to prevent the electronics heating up as a result of heat radiation or convection. The insulation may not exceed beyond the points labeled "MAX" in the drawings.
  • Page 61 Replacing a displacer system in an existing displacer chamber The device is a perfect replacement for a conventional displacer system in an existing displacer chamber. Pepperl+Fuchs offers flanges that suit Fischer and Masoneilan displacer chamber for this purpose. Thanks to menu-guided local operation, commissioning the device only takes a few minutes.

  • Page 62: Operating Conditions: Environment

    Pulscon LTC51 Operating conditions: Environment Operating conditions: Environment Ambient temperature range Measuring device -40 ... +80 °C (-40 ... +176 °F) Local display -20 ... +70 °C (-4 ... +158 °F), the readability of the display may be impaired at temperatures outside the temperature range.
  • Page 63 Pulscon LTC51 Operating conditions: Environment Temperature derating with threaded connection G3/4 or NPT3/4 [°C] ([°F]) T a +80 (+176) A2 (GT20): +58 (+136) A3 (GT18): +48 (+118) A1 (GT19): 4 … 20 mA HART +29 (+84) -40 (-40) [°C] +200 ([°F])
  • Page 64 Pulscon LTC51 Operating conditions: Environment Temperature derating for with threaded connection G1-1/2 or NPT1-1/2 [°C] ([°F]) T a +80 (+176) A2 (GT20): +57 (+135) A3 (GT18): +49 (+120) A1 (GT19): 4 … 20 mA HART +20 (+68) -40 (-40) [°C] +200 ([°F])
  • Page 65 Pulscon LTC51 Operating conditions: Environment Temperature derating with flange [°C] ([°F]) T a +80 (+176) A2 (GT20): +59 (+138) A3 (GT18): 4 20 mA HART +53 (+127) A1 (GT19): +33 (+91) -40 (-40) [°C] +200 (-40) ([°F]) (+180) (+392) [°C] ([°F]) T a...

  • Page 66: Storage Temperature

    Pulscon LTC51 Operating conditions: Environment Storage temperature -40 ... +80 °C (-40 ... +176 °F) Climate class DIN EN 60068-2-38 (test Z/AD) Altitude according to IEC 61010-1 Ed.3 Up to 2000 m (6600 ft) above MSL. Can be expanded to 3000 m (9800 ft) above MSL by application of an overvoltage protection.

  • Page 67: Electromagnetic Compatibility (Emc)

    Pulscon LTC51 Operating conditions: Environment Electromagnetic compatibility (EMC) Electromagnetic compatibility to all relevant requirements of the EN 61326-X series and NAMUR recommendation EMC (NE 21). For details see declaration of conformity . If only the analogue signal is used, unshielded interconnection lines are sufficient for the installation.

  • Page 68: Process

    Pulscon LTC51 Process Process Process temperature range The maximum permitted temperature at the process connection is determined by the O-ring version ordered: Device O-ring material Process temperature LTC51 FKM (Viton GLT 37559) -30 ... +150 °C (-22 ... +302 °F) -40 ...

  • Page 69: Dielectric Constant (Dc)

    Pulscon LTC51 Process Dielectric constant (DC) • Coax probes: DC ( )  1.4 • Rod and rope probe: DC ( )  1.6 (when installing in pipes DN  150 mm (6 in): DC ( )  1.4) Expansion of the rope probes through temperature Elongation through temperature increase from 30 °C (86 °F) to 150 °C (302 °F): 2 mm/m rope...

  • Page 70: Mechanical Construction

    Pulscon LTC51 Mechanical construction Mechanical construction 10.1 Dimensions Dimensions of the electronics housing 99.5 (3.92)* 78 (3.07) 90 (3.54) Figure 10.1 Housing A1 (GT19), plastics PBT; dimensions in mm (in) 97 (3.82)* 78 (3.07) 90 (3.54) Figure 10.2 Housing A2 (GT20), Alu coated; dimensions in mm (in) 98 (3.86)*...
  • Page 71 Pulscon LTC51 Mechanical construction Dimensions of the mounting bracket 122 (4.8) 140 (5.5) 175 (6.9) 158 (6.2) mm (in) Figure 10.4 Wall mounting Pipe mounting Note! For the "Sensor remote" device version (see feature "Probe Design" of the product structure),...
  • Page 72 Pulscon LTC51 Mechanical construction Dimensions of process connection (G3/4, NPT3/4) and probe 122(4.8) = 100 (4) ø59.35 ø82.5 (3.25) (2.34) SW36 AF36 G¾ NPT¾ ø10 (0.4) ø4 (0.16) ø4 (0.16) ø22 (0.87) ø8 (0.31) 2 (0.08) 8 (0.31) ø22 0 ( .87) Figure 10.5...
  • Page 73 Pulscon LTC51 Mechanical construction Dimensions of process connection (G1-1/2, NPT1-1/2, flange) and probe 122(4.8) = 100 (4) ø59.35 ø59.35 ø59.35 (2.34) (2.34) (2.34) SW55 SW55 ø82.5 (3.25) AF55 AF55 G1½ NPT1½ SW10 AF10 SW14 SW10 ø10 (0.4) AF14 AF10 SW10 ø16 (0.63)

  • Page 74: Tolerance Of Probe Length

    Pulscon LTC51 Mechanical construction 10.2 Tolerance of probe length Rod and coax probes Over [m (ft)] – 1 (3.3) 3 (9.8) 6 (20) Up to [m (ft)] 1 (3.3) 3 (9.8) 6 (20) – Admissible tolerance [mm (in)] -5 (-0.2) -10 (-0.39)

  • Page 75: Weight

    Pulscon LTC51 Mechanical construction 10.5 Weight Housing Part Weight Housing A1 (GT19), plastic approx. 1.2 kg Housing A2 (GT20), aluminium approx. 1.9 kg Housing A3 (GT18), stainless steel approx. 4.5 kg Table 10.3 Device with threaded connection G3/4 or NPT3/4...

  • Page 76: Materials: A1 (Gt19) Housing

    Pulscon LTC51 Mechanical construction 10.6 Materials: A1 (GT19) housing Figure 10.7 Part Material Housing Cover of the electronics compartment • Cover, depending on the device version: – PA (transparent cover) – PBT (blind cover) • Cover seal: EPDM • Thread-coating: heat-curing lubricant varnish Cover of the terminal compartment •...
  • Page 77 Pulscon LTC51 Mechanical construction Part Material Dummy plug or M12 socket • Dummy plug: Nickel-plated brass (CuZn) (depending on the device version) • M12 socket: Nickel-plated GD-Zn Pressure relief stopper Nickel-plated brass (CuZn) Ground terminal • Screw: A2 • Spring washer: A4 •...

  • Page 78: Materials: A2 (Gt20) Housing

    Pulscon LTC51 Mechanical construction 10.7 Materials: A2 (GT20) housing Figure 10.8 Part Material Housing • Housing: AlSi10Mg (< 0.1 % Cu) • Coating: Polyester Cover of the electronics compartment • Cover: AlSi10Mg (< 0.1 % Cu) • Window: glass • Cover seal: EPDM •...
  • Page 79 Pulscon LTC51 Mechanical construction Part Material Dummy plug, cable gland or adapter • Dummy plug, depending on the device version: (depending on the device version) – PE – PBT-GF – Steel, galvanized • Cable gland, depending on the device version: –...

  • Page 80: Materials: A3 (Gt18) Housing

    Pulscon LTC51 Mechanical construction 10.8 Materials: A3 (GT18) housing Figure 10.9 Part Material Housing 316L (CF-3M, 1.4404) Cover of the electronics compartment • Cover: 316L (CF-3M, 1.4404) • Window: glass • Cover seal: EPDM • Thread-coating: heat-curing lubricant varnish Cover of the terminal compartment •...
  • Page 81 Pulscon LTC51 Mechanical construction Part Material Ground terminal • Screw: A4 • Spring washer: A4 • Clamp: 316L (1.4404) • Holder: 316L (1.4404) Nameplate • Plate: 316L (1.4404) • Groove pin: A4 (1.4571) Table 10.8 For the version with M12 plug the sealing material is Viton.

  • Page 82: Materials: Process Connection

    Materials: Process connection Note! Pepperl+Fuchs supplies DIN/EN flanges and threaded process connections made of stainless steel according to AISI 316L (DIN/EN material number 1.4404 or 1.4435). With regard to their temperature stability properties, the materials 1.4404 and 1.4435 are grouped under 13E0 in EN 1092-1 table 18.
  • Page 83 Pulscon LTC51 Mechanical construction Rod probe Material Ø12 mm (1/2 in) Ø16 mm (2/3 in) 316L divisible 316L (1.4404) Connecting bolt: Alloy C22 (2.4602) Nord-Lock washer: 1.4547 Hexagon head screw: A4-70 Nord-Lock washer: 1.4547 Centering star on request: PEEK Center washer on request: 316L (1.4404) Center washer on request: PFA Table 10.11...

  • Page 84: Materials: Mounting Bracket

    Pulscon LTC51 Mechanical construction 10.11 Materials: Mounting bracket Figure 10.10 Mounting bracket for version "Sensor remote" Component Material Bracket 316L (1.4404) Bracket 316Ti (1.4571) Screw/nuts A4-70 Distance sleeves 316Ti (1.4571) or 316L (1.4404) Half-shells 316L (1.4404) Table 10.12 10.12 Materials: Adapter and cable Figure 10.11...

  • Page 85: Materials: Weather Protection Cover

    Pulscon LTC51 Mechanical construction 10.13 Materials: Weather protection cover Figure 10.12 Weather protection cover Part: material Part: material Protection cover: 304 (1.4301) Bracket: 304 (1.4301) Washer: A2 Cheese head screw: A2-70 Cheese head screw: A4-70 Nut: A2 Washer: A2 Ground terminal •...

  • Page 86: Operability

    Pulscon LTC51 Operability Operability 11.1 Operating concept Operator-oriented menu structure for user-specific tasks • Commissioning • Operation • Diagnostics • Expert level Operating languages • English (contained in every device) • One additional language as ordered (feature "Additional operation language" of the...

  • Page 87: Local Operation

    Pulscon LTC51 Operability 11.2 Local operation Order code for "Display, operation", option D Order code for "Display, operation", option E "SD02" "SD03" Operation with push buttons Operation with touch control Table 11.1 Display elements • 4-line display • In the case of order code for "Display, operation", option E: white background lighting;...

  • Page 88: Remote Operation

    Pulscon LTC51 Operability 11.3 Remote operation Via HART protocol Figure 11.1 Options for remote operation via HART protocol PLC (programmable logic controller) Transmitter power supply unit, e. g. KFD2-STC-Ex1 (with communication resistor) Connection for optional field communicator Field communicator Computer with operating tool (e. g. PACTware)
  • Page 89 Pulscon LTC51 Operability Via PROFIBUS PA protocol PROFIBUS DP PROFIBUS PA Figure 11.2 Segment coupler Computer with Profiboard/Proficard and operating tool (e. g. PACTware) PLC (Programmable Logic Controller) Transmitter Additional functions (valves etc.) Via service interface (CDI) Figure 11.3 Service interface (CDI) of the measuring device (Common Data Interface)

  • Page 90: Certificates And Approvals

    The measuring system meets the legal requirements of the applicable EC guidelines. These are listed in the corresponding EC Declaration of Conformity together with the standards applied. Pepperl+Fuchs confirms successful testing of the device by affixing to it the CE mark. 12.2 C-Tick symbol The measuring system meets the EMC requirements of the "Australian Communications and...

  • Page 91: Telecommunications

    Pulscon LTC51 Certificates and approvals 12.7 Telecommunications Complies with part 15 of the FCC rules for an unintentional radiator. All probes meet the requirements for a class A digital device. In addition, all probes in metallic tanks as well as the coax probe meet the requirements for a class B digital device.

  • Page 92: Other Standards And Guidelines

    Pulscon LTC51 Certificates and approvals 12.9 Other standards and guidelines • EN 60529 Degrees of protection by housing (IP code) • EN 61010-1 Protection Measures for Electrical Equipment for Measurement, Control, Regulation and Laboratory Procedures. • IEC/EN 61326 "Emission in accordance with class A requirements". Electromagnetic compatibility (EMC requirements) •...

  • Page 93: Ordering Information

    Pulscon LTC51 Ordering information Ordering information 13.1 Design Figure 13.1 Design of the device Electronics housing Process connection (example flange) Rope probe End-of-probe weight Rod probe Coax probe...

  • Page 94: Product Structure

    Pulscon LTC51 Ordering information 13.2 Product structure Note! This overview does not mark options which are mutually exclusive. Option with * = on request/in preparation Device LTC51 Guided level radar Probe in mm, rod Ø8 mm, 1.4404/316L in mm, rope Ø4 mm, 1.4401/316, max. 150 mm nozzle height, center rod in inch, rope Ø1/6 in, 1.4401/316, max.
  • Page 95 Pulscon LTC51 Ordering information Process connection 2 in 150 lbs, Alloy C > 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) 2 in 300 lbs, Alloy C > 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) DN40 PN10-40, Alloy C > 1.4404/316L, flange EN 1092-1 DN50 PN10/16, Alloy C > 1.4404/316L, flange EN 1092-1 DN50 PN25/40, Alloy C >...
  • Page 96 Pulscon LTC51 Ordering information Seal Viton, -30 ... 150 °C Special version Housing GT19 dual compartment, plastics PBT GT20 dual compartment, alu coated GT18 dual compartment, 1.4404/316L Special version Electrical output 4-wire, 90 ... 253 V AC, 4 ... 20 mA, HART 4-wire, 10.4 ...
  • Page 97 Pulscon LTC51 Ordering information Approval IECEx Ex ic IIC T6-T1 Gc Version for non-hazardous area * ATEX II 1/2G Ex ia IIC T6-T1 Ga/Gb or 1/2 D Ex ia IIIC Txx°C Da/Db Length XXXXX Always indicate length. Length specification depends on chosen probe. See...
  • Page 98 Pulscon LTC51 Ordering information Additional options Note! Option with * = on request/in preparation Feature with ** = multiple options can be selected Additional operation language No option English German French Spanish Italian Dutch * Portuguese * Polish * Russian...
  • Page 99 Pulscon LTC51 Ordering information Test, certificate ** No option Material certificate, wetted metallic parts, EN 10204-3.1 inspection certificate Special version Additional approval ** No option * SIL * WHG overfill prevention Special version Probe design ** No option Sensor remote, 3 m cable, detachable, with mounting bracket...

  • Page 100: 5-Point Linearity Protocol

    Pulscon LTC51 Ordering information 13.3 5-point linearity protocol Note! The following notes must be taken into account if option "5 point linearity protocol" has been selected in feature "Calibration". The five points of the linearity protocol are evenly distributed across the measuring range (0 to 100 %).

  • Page 101: Customized Parametrization

    Pulscon LTC51 Ordering information Note! • For rod and rope probes the linearity check is performed with the complete device. • For coax probes the electronics is mounted to a reference rod probe and the linearity check is performed to this configuration.

  • Page 102: Accessories

    Pulscon LTC51 Accessories Accessories 14.1 Device-specific accessories Weather protection cover Accessory Description Weather protection cover mm (in) 298.5(11.8) 298.5(11.8) 273.8(10.8) 273.8(10.8) 255.1(10) 255.1(10) 164 (6.46) 164 (6.46) mm (in) mm (in) a 37.8 mm (1.49 in) b 54 mm (2.13 in) The weather protection cover can be ordered together with the device (product structure, feature "Accessory enclosed", option B "Weather...
  • Page 103 Pulscon LTC51 Accessories Mounting bracket for the electronics housing Accessory Description Mounting bracket for the electronics housing 122 (4.8) 140 (5.5) 175 (6.9) 158 (6.2) mm (in) A Wall mounting B Pipe mounting For the "Sensor remote" device version, the mounting bracket is part of the delivery.
  • Page 104 Pulscon LTC51 Accessories Mounting kit, isolated Accessory Description Mounting kit, isolated 1 Insulating sleeve 2 Eye-bolt For reliably insulated fixing of the probe. Maximum process temperature: 150 °C (300 °F) For rope probes 4 mm (1/6 in) or 6 mm (1/4 in) with PA > steel: •...

  • Page 105: Communication-Specific Accessories

    Pulscon LTC51 Accessories 14.2 Communication-specific accessories Accessory Description HART Loop Converter Evaluates the dynamic HART variables and converts them to KFD2-HLC-Ex1.D.** analog current signals or limit values. Table 14.4 Accessory Description WirelessHART-Adapter Connects field devices to a WirelessHART network. The...

  • Page 106: Documentation

    Pulscon LTC51 Documentation Documentation Note! The following document types are available in the download area of the Pepperl+Fuchs internet site: www.pepperl-fuchs.com  Download. 15.1 Standard documentation Guided level radar Pulscon LTC51 Correlation of documentations to the device: Device Electrical output...
  • Page 107 Pulscon LTC51 Documentation Safety instructions (SI) Feature Approval Feature "Electrical output" "Approval" Option IH Option ID Option IE Option PA Option AH Option DH ATEX II 1G Ex ia IIC T6-T1 Ga SI00496O SI01125O SI01126O SI00516O – ATEX II 1/2G Ex ia IIC T6-T1...

  • Page 108: Registered Trademarks

    Pulscon LTC51 Registered trademarks Registered trademarks HART ® • Registered trademark of the HART Communication Foundation, Austin, USA PROFIBUS ® • Registered trademark of the PROFIBUS User Organization, Karlsruhe, Germany KALREZ , VITON ® ® • Registered trademark of DuPont Performance Elastomers L.L.C., Wilmington, USA TEFLON ®...

  • Page 109: Patents

    Pulscon LTC51 Patents Patents This product may be protected by at least one of the following patents. Further patents are pending. US patents EP patents 5.827.985 – 5.884.231 – 5.973.637 – 6.087.978 955 527 6.140.940 – 6.481.276 – 6.512.358 1 301 914 6.559.657...
  • Page 110 Pulscon LTC51 Notes...
  • Page 111 Pulscon LTC51 Notes...
  • Page 112 PROCESS AUTOMATION – PROTECTING YOUR PROCESS Worldwide Headquarters Pepperl+Fuchs GmbH 68307 Mannheim · Germany Tel. +49 621 776-0 TI01001O/98/EN/17.13 E-mail: info@de.pepperl-fuchs.com For the Pepperl+Fuchs representative closest to you check www.pepperl-fuchs.com/contact www.pepperl-fuchs.com Subject to modifications DOCT-2757 Copyright PEPPERL+FUCHS • Printed in Germany 10/2014...

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