Pepperl+Fuchs Pulscon LTC51 Technical Information

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ISO9001

PROCESS AUTOMATION

TECHNICAL INFORMATION

Pulscon LTC51

Guided Level Radar

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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:

"Expanded reservation of proprietorship"

Application

• Rod, rope or coax probe

• Process connection: Starting 3/4 in thread or flange

• Temperature: -40 ... +200 °C (-40 ... +392 °F)

• Pressure: -1 ... +40 bar (-14.5 ... +580 psi)

• Maximum measuring range: Rod 10 m (33 ft); rope 45 m (148 ft); coax 6 m (20 ft)

• Accuracy: ±2mm(0.08in)

• International explosion protection certificates; WHG; ship building approval; steam boiler approval; EN 10204-3.1

• Linearity protocol (5-point)

Yo ur b e ne f it s

• Reliable measurement even for changing product and process conditions

• HistoROM data management for easy commissioning, maintenance and diagnostics

• Highest reliability due to Multi-Echo Tracking

• Hardware and software developed according to IEC 61508 (up to SIL3)

• Seamless integration into control or asset management systems

• Intuitive user interface in national languages

• Easy proof test for SIL and WHG

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Content

1 Important document information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.1 Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2 Function and system design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.1 Measuring principle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.2 Life cycle of the product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.3 Measuring system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3 Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.1 Measured variable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.2 Measuring range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.3 Blocking distance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.4 Measuring frequency spectrum. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

4 Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.1 Output signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4.2 Signal on alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.3 Linearization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.4 Galvanic isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.5 Protocol-specific data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

5 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.1 Terminal assignment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.2 HART Loop Converter KFD2-HLC-Ex1.D.** . . . . . . . . . . . . . . . . . . . . . 28

5.3 Device plug connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5.4 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5.5 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.6 Current consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.7 Power supply failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.8 Potential equalization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.9 Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.10 Cable entries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.11 Cable specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.12 Overvoltage protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

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Content

6 Performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

6.1 Reference operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

6.2 Maximum measured error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

6.3 Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

6.4 Reaction time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

6.5 Influence of ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

6.6 Influence of gas layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

6.7 Gas phase compensation with external pressure sensor

(PROFIBUS PA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

7 Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

7.1 Mounting requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

8 Operating conditions: Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

8.1 Ambient temperature range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

8.2 Ambient temperature limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

8.3 Storage temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

8.4 Climate class . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

8.5 Altitude according to IEC 61010-1 Ed.3 . . . . . . . . . . . . . . . . . . . . . . . . 66

8.6 Degree of protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

8.7 Vibration resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

8.8 Cleaning the probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

8.9 Electromagnetic compatibility (EMC) . . . . . . . . . . . . . . . . . . . . . . . . . 67

9 Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

9.1 Process temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

9.2 Process pressure range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

9.3 Dielectric constant (DC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

9.4 Expansion of the rope probes through temperature . . . . . . . . . . . . . 69

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Content

10 Mechanical construction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

10.1 Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

10.2 Tolerance of probe length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

10.3 Surface roughness of Alloy C coated flanges . . . . . . . . . . . . . . . . . . . 74

10.4 Shortening probes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

10.5 Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

10.6 Materials: A1 (GT19) housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

10.7 Materials: A2 (GT20) housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

10.8 Materials: A3 (GT18) housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

10.9 Materials: Process connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

10.10 Materials: Probe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

10.11 Materials: Mounting bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

10.12 Materials: Adapter and cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

10.13 Materials: Weather protection cover . . . . . . . . . . . . . . . . . . . . . . . . . . 85

11 Operability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

11.1 Operating concept. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

11.2 Local operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

11.3 Remote operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

12 Certificates and approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

12.1 CE mark . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

12.2 C-Tick symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

12.3 Ex approval. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

12.4 Dual seal according to ANSI/ISA 12.27.01 . . . . . . . . . . . . . . . . . . . . . . 90

12.5 Functional Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

12.6 Overfill prevention. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

12.7 Telecommunications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

12.8 CRN approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

12.9 Other standards and guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

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Content

13 Ordering information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

13.1 Design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

13.2 Product structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

13.3 5-point linearity protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

13.4 Customized parametrization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

14 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

14.1 Device-specific accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

14.2 Communication-specific accessories . . . . . . . . . . . . . . . . . . . . . . . . 105

14.3 Service-specific accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

14.4 System components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

15 Documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

15.1 Standard documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

15.2 Safety documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

16 Registered trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

17 Patents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

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Important document information

1 Important document information

1.1 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 descending order as follows:

Safety-relevant symbols

Danger!

This symbol indicates an imminent danger.

Non-observance will result in personal injury or death.

Warning!

This symbol indicates a possible fault or danger.

Non-observance may cause personal injury or serious property damage.

Caution!

This symbol indicates a possible fault.

Non-observance could interrupt devices and any connected facilities or systems, or result in their complete failure.

Informative symbols

Note!

This symbol brings important information to your attention.

Action

This symbol indicates a paragraph with instructions.

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Important document information

1.1.2 Electrical symbols

Symbol Meaning

)

Table 1.1

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.

Direct current and alternating current

• A terminal to which alternating voltage or DC voltage is applied.

• A terminal through which alternating current or direct current flows.

Ground connection

A grounded terminal which, as far as the operator is concerned, is grounded via a grounding system.

Protective ground connection

A terminal which must be connected to ground prior to establishing any other connections.

Equipotential connection

A connection that has to be connected to the plant grounding system: This may be a potential equalization line or a star grounding system depending on national or company codes of practice.

1.1.3 Symbols in graphics

Symbol Meaning 1, 2, 3 ... Item numbers

,…,1. 2. 3.

A, B, C, ... Views A-A, B-B, C-C, ... Sections

Table 1.2

Series of steps

Hazardous area

Indicates a hazardous area.

Safe area (non-hazardous area)

Indicates a non-hazardous location.

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20 mA 100%

4mA 0%

Function and system design

2 Function and system design

2.1 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. High-frequency pulses are injected to a probe and led along the probe. The pulses are reflected by the product surface, received by the electronic evaluation unit and converted into level information. This method is also known as TDR (Time Domain Reflectometry).

Figure 2.1 Parameters for level measurement with the guided radar

LN Probe length D Distance L Level R Reference point of measurement E Empty calibration (= zero) F Full calibration (= span)

Note!

If, for rope probes, the DC value is less than 7, then measurement is not possible in the area of the straining weight (0 to 250 mm from end of probe; lower blocking distance).

2.1.2 Dielectric constant

The dielectric constant (DC) of the medium has a direct impact on the degree of reflection of the high frequency pulses. In the case of large DC values, such as for water or ammonia, there is strong pulse reflection while, with low DC values, such as for hydrocarbons, weak pulse reflection is experienced.

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Function and system design

2.1.3 Input

The reflected pulses are transmitted from the probe to the electronics. There, a microprocessor analyzes the signals and identifies the level echo which was generated by the reflection of the high-frequency pulses at the product surface. This clear signal detection system benefits from over 30 years' experience with pulse time-of-flight procedures.

The distance D to the product surface is proportional to the time of flight t of the impulse:

D = c x t / 2,

where c is the speed of light.

Based on the known empty distance E, the level L is calculated: L = E – D

Note!

The reference point R of the measurement is located at the process connection. See chapter 10.

The device possesses functions for interference echo suppression that can be activated by the user. They guarantee that interference echoes from e. g. internals and struts are not interpreted as level echoes.

2.1.4 Output

The device is preset at the factory to the probe length ordered so that in most cases only the application parameters that automatically adapt the device to the measuring conditions need to be entered. For models with a current output, the factory adjustment for zero point E and span F is 4 mA and 20 mA, for digital outputs and the display module 0 % and 100 %. A linearization function with max. 32 points, which is based on a table entered manually or semiautomatically, can be activated on site or via remote operation. This function allows the level to be converted into units of volume or mass, for example.

2.2 Life cycle of the product

Engineering

• 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

• Special tools are not required

• Reverse polarity protection

• Modern, detachable terminals

• Main electronics protected by a separate connection compartment

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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

• Multi-echo tracking: Reliable measurement through self-learning echo-search algorithms taking into account the short-term and long-term history in order to check the found echoes for plausibility and to suppress interference echoes.

• Diagnostics in accordance with NAMUR NE 107

Maintenance

• HistoROM: Data backup for instrument settings and measured values

• Exact instrument and process diagnosis to assist fast decisions with clear details concerning remedies

• Intuitive, menu-guided operating concept in national languages saves costs for training, maintenance and operation

• Cover of the electronics compartment can be opened in hazardous areas

Retirement

• Order code translation for subsequent models

• RoHS-conforming (Restriction of certain Hazardous Substances), unleaded soldering of electronic components

• Environmentally sound recycling concept

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Function and system design

2.3 Measuring system

2.3.1 General notes on probe selection

• Normally use rod probes for liquids. Rope probes are used in liquids for measuring ranges > 10 m (33 ft) and with restricted ceiling clearance which does not allow the installation of rigid probes.

• Coax probes are suited to liquids with viscosities of up to approx. 500 cst. Coax probes can measure most liquefied gases, as of a dielectric constant of 1.4. Moreover, installation conditions, such as nozzles, tank internal fittings etc., have no effect on the measurement when a coax probe is used. A coax probe offers maximum EMC safety when used in plastic tanks.

Probe selection

The various types of probe in combination with the process connections are suitable for the following applications

Type of probe Rod probe Rope probe Coax probe

Feature "Probe" Option Option Option

1 8 mm (316L) 2 4 mm (316) 4 ... mm (316L) 5 1/3 in (316L) 3 1/6 in (316) G ... inch (316L) 8 12 mm (316L) E 4 mm (316) with

H ... mm (Alloy C)

center rod

9 1/2 in (316L) F 1/6 in (316) with

K ... inch (Alloy C)

center rod 6 12 mm (Alloy C) 7 1/2 in (Alloy C) A

16 mm (316L) divisible

C B

0.63 in (316L) divisible

Max. probe length 10 m (33 ft)

45 m (148 ft) 6 m (20 ft)

For application Level measurement in liquids

Table 2.1

Multiple punched for process connections G1-1/2 in or flange

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.

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Input

3Input

3.1 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).

3.2 Measuring range

The following table describes the media groups and the possible measuring range as a function of the media group.

Pulscon LTC51 Media

group

1 1.4 ... 1.6 condensed gases,

2 1.6 ... 1.9 • liquefied gas,

3 1.9 ... 2.5 mineral oils, fuels • one-piece: 4 m (13 ft)

4 2.5 ... 4 • benzene, styrene,

5 4 ... 7 • chlorobenzene,

6 >7 •aqueous

Table 3.1

DC (r) Typical liquids Measuring range

bare metallic rod probes

e. g. N2, CO

e. g. propane

•solvent

•Freon

•palm oil

toluene

•furan

• naphthalene

chloroform

• cellulose spray

• isocyanate, aniline

solutions

•alcohols

• ammonia

on request 6 m (20 ft)

• one-piece: 4 m (13 ft)

• divisible: 10 m (33 ft)

• one-piece: 4 m (13 ft)

• divisible: 10 m (33 ft)

• one-piece: 4 m (13 ft)

• divisible: 10 m (33 ft)

• one-piece: 4 m (13 ft)

• divisible: 10 m (33 ft)

bare metallic rope probes

15 ... 22 m (49 ... 72 ft)

22 ... 32 m (72 ... 105 ft)

32 ... 42 m (105 ... 138 ft)

42 ... 45 m (138 ... 148 ft)

45 m (148 ft) 6 m (20 ft)

coax probes

6 m (20 ft)

Note!

Reduction of the max. possible measuring range through buildup, above all of moist products. Due to the high diffusion rate of ammonia it is recommended with gas-tight bushing for

measurements in this medium.

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100%

Input

3.3 Blocking distance

The upper blocking distance (= UB) is the minimum distance from the reference point of the measurement (mounting flange) to the maximum level.

Figure 3.1 Definition of blocking distance and safety distance

R Reference point of measurement LN Probe length UB Upper blocking distance E Empty calibration (= zero) F Full calibration (= span) SD Safety distance

Blocking distance (factory setting):

• with coax probes: 0mm(0in)

• with rod and rope probes up to 8 m (26 ft): 200 mm (8 in)

• with rod and rope probes exceeding a length of 8 m (26 ft): 0.025 x (length of probe)

Note!

The specified blocking distances are preset on delivery. Depending on the application these settings can be changed.

For rod and rope probes and for media with DC > 7 (or generally for stilling well/bypass applications) the blocking distance may be reduced to 100 mm (4 in).

Within the blocking distance, a reliable measurement can not be guaranteed.

Note!

A safety distance SD can be defined in addition to the blocking distance. A warning is generated if the level rises into this safety distance.

3.4 Measuring frequency spectrum

100 MHz to 1.5 GHz

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Pulscon LTC51

Output

4Output

4.1 Output signal

HART

Signal coding FSK ±0.5 mA over currency signal Data transmission rate 1200 Baud Galvanic isolation Yes

Table 4.1

PROFIBUS PA

Signal coding Manchester Bus Powered (MBP) Data transmission rate 31.25 kBit/s, voltage mode Galvanic isolation Yes

Table 4.2

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.

Switch output Function Open collector switching output

Switching behavior Binary (conductive or non-conductive), switches when the

programmable switch point is reached Failure mode non-conductive Electrical connection values U = 10.4 ... 35 V DC, I = 0 ... 40 mA Internal resistance RI < 880 

The voltage drop at this internal resistance has to be taken

into account on planning the configuration. For example, the

resulting voltage at a connected relay must be sufficient to

switch the relay. Insulation voltage floating, Insulation voltage 1350 V DC to power supply and

Switch point freely programmable, separately for switch-on and switch-off

Switching delay freely programmable from 0 to 100 s, separately for switch-

Number of switching cycles corresponds to the measuring cycle Signal source

device variables

Number of switching cycles unlimited

Table 4.3

500 V AC to ground

point

on and switch-off point

• Level linearized

•Distance

• Terminal voltage

• Electronic temperature

• Relative echo amplitude

• Diagnostic values, Advanced diagnostics

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Pulscon LTC51

Output

4.2 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

• Fail-safe mode with user-selectable value: 3.59 ... 22.5 mA

•Local display

• Status signal (in accordance with NAMUR Recommendation NE 107)

• Plain text display

• Operating tool via digital communication (HART, PROFIBUS PA) or service interface (CDI)

• Status signal (in accordance with NAMUR Recommendation NE 107)

• Plain text display

4.3 Linearization

The linearization function of the device allows the conversion of the measured value into any unit of length or volume. Linearization tables for calculating the volume in cylindrical tanks are pre-programmed. Other tables of up to 32 value pairs can be entered manually or semiautomatically.

4.4 Galvanic isolation

All circuits for the outputs are galvanically isolated from each other.

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Pulscon LTC51

Output

4.5 Protocol-specific data

HART

Manufacturer ID 17 (0x11) Device type ID 0x34 HART specification 6.0 Device description files

(DTM, DD)

HART load Min. 250 HART device variables The measured values can be freely assigned to the device

Supported functions •Burst mode

Table 4.4

Information and files under:

• www.pepperl-fuchs.com

• www.hartcomm.org

variables. Measured values for PV (primary variable)

• Level linearized

•Distance

• Electronic temperature

• Relative echo amplitude

Measured values for SV, TV, FV (second, third and fourth variable)

• Level linearized

•Distance

• Terminal voltage

• Electronic temperature

• Absolute echo amplitude

• Relative echo amplitude

• Calculated DC

• Additional transmitter status

Wireless HART data

Minimum start-up voltage 11.4 V Start-up current 3.6 mA Start-up time 15 s Minimum operating voltage 11.4 V Multidrop current 3.6 mA Set-up time 1 s

Table 4.5

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Pulscon LTC51

Output

PROFIBUS PA

Manufacturer ID 93 (5D HEX) Ident number 0E3B HEX Profile version 3.02 GSD file Information and files under: GSD file version

Output values Analog Input:

Input values Analog Output:

Supported functions • Identification & Maintenance

Table 4.6

• www.pepperl-fuchs.com

•www.profibus.org

• Level linearized

•Distance

• Terminal voltage

• Electronic temperature

• Absolute echo amplitude

• Relative echo amplitude

• Calculated DC

Digital Input:

• Extended diagnostic blocks

• Status output PFS Block

• Analog value from PLC (for sensor block external pressure and temperature)

• Analog value from PLC to be indicated on the display

Digital Output:

• Extended diagnostic block

• Level limiter

• Sensor block measurement on

• Sensor block save history on

• Status output

Simple device identification via control system and nameplate

• Automatic Ident Number Adoption GSD compatibility mode with respect to the previous device

• Physical Layer Diagnostics Installation check of the PROFIBUS segment via terminal voltage and telegram monitoring

•PROFIBUS Up-/Download Up to 10 times faster reading and writing of parameters via PROFIBUS Up-/Download

•Condensed Status Simple and self-explanatory diagnostic information due to categorization of diagnostic messages

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Pulscon LTC51

–

4 ... 20 mA

5412

–

4...20mA HART

2- wire

leve

4-20

[21]

open

Power supply

5 Power supply

5.1 Terminal assignment

2-wire: 4 ... 20 mA HART

Figure 5.1 Terminal assignment 2-wire; 4 ... 20 mA HART

1 Active barrier with power supply (e. g. KCD2-STC-Ex1): observe terminal voltage 2 HART communication resistor ( 250 ): observe maximum load 3 Connection for optional field communicator 4 Analog display device: observe maximum load 5 Cable screen; observe cable specification 6 4 ... 20 mA HART (passive): terminals 1 and 2 7 Terminal for potential equalization line 8 Cable entry

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Pulscon LTC51

4...20 mA HART

10 mm

2- wire

4-20 mA PFS

[02/03

]

ope

4 ... 20 mA

≥ 250 Ω

–

Power supply

2-wire: 4 ... 20mA HART, switch output

Figure 5.2 Terminal assignment 2-wire; 4 ... 20mA HART, switch output

1 Active barrier with power supply (e. g. KCD2-STC-Ex1): observe terminal voltage 2 HART communication resistor ( 250 ): observe maximum load 3 Connection for optional field communicator 4 Analog display device: observe maximum load 5 Cable screen; observe cable specification 6 4 ... 20 mA HART (passive): terminals 1 and 2 7 Switch output (open collector): terminals 3 and 4 8 Terminal for potential equalization line 9 Cable entry for 4 ... 20 mA HART line 10 Cable entry for switch output line

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Pulscon LTC51

4...20mA HART

4...20mA

10 mm

2- wire

level

4-20 mA 4-20 mA

[04/05]

open

13 12 11

586

–

4 ... 20 mA

Power supply

2-wire: 4 ... 20 mA HART, 4 ... 20 mA

Figure 5.3 Terminal assignment 2-wire, 4 ... 20 mA HART, 4 ... 20 mA

1 Connection current output 2 2 Connection current output 1 3 Supply voltage for current output 1 (e. g. KCD2-STC-Ex1); observe terminal voltage 4 Cable screen; observe cable specification 5 HART communication resistor ( 250 ): observe maximum load 6 Connection for optional field communicator 7 Analog display device; observe maximum load 8 Analog display device; observe maximum load 9 Supply voltage for current output 2 (e. g. KCD2-STC-Ex1); observe terminal voltage 10 Current output 2: terminals 3 and 4 11 Terminal for the potential equalization line 12 Cable entry for current output 1 13 Cable entry for current output 2

Note!

This version is also suited for single-channel operation. In this case, current output 1 (terminals 1 and 2) must be used.

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Pulscon LTC51

L+

4...20 mA HA

10.4...48V=

2- wire

4-20 mA

[08

]

ope

L-

13 12

910

4 ... 20 mA

250Ω

Power supply

4-wire: 4 ... 20 mA HART (10.4 ... 48 V DC)

Figure 5.4 Terminal assignment 4-wire; 4 ... 20mA HART (10.4 ... 48 V DC)

1 Evaluation unit, e. g. PLC 2 HART communication resistor ( 250 ): observe maximum load 3 Connection for optional field communicator 4 Analog display device: observe maximum load 5 Signal cable including screening (if required), observe cable specification 6 Protective connection; do not disconnect! 7 Protective earth, observe cable specification 8 4 ... 20 mA HART (active): terminals 3 and 4 9 Supply voltage: terminals 1 and 2 10 Supply voltage: Observe terminal voltage, observe cable specification 11 Terminal for potential equalization 12 Cable entry for signal line 13 Cable entry for power supply

Warning!

To ensure electrical safety:

• Do not disconnect the protective connection (6).

• Disconnect the supply voltage before disconnecting the protective earth (7).

Note!

Connect protective earth to the internal ground terminal (7) before connecting the supply voltage. If necessary, connect the potential matching line to the external ground terminal (11).

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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.

Note!

An easily accessible power switch must be installed in the proximity of the device. The power switch must be marked as a disconnector for the device (IEC/EN 61010).

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Pulscon LTC51

4...20 mA HA

90...2

2- wire

4-20 mA

[09

]

ope

13 12

910

4 ... 20 mA

≥ 250Ω

Power supply

4-wire: 4 ... 20 mA HART (90 ... 253 V AC)

Figure 5.5 Terminal assignment 4-wire; 4 ... 20 mA HART (90 ... 253 V AC)

1 Evaluation unit, e. g. PLC 2 HART communication resistor ( 250 ): observe maximum load 3 Connection for optional filed communicator 4 Analog display device: observe maximum load 5 Signal cable including screening (if required), observe cable specification 6 Protective connection; do not disconnect! 7 Protective earth, observe cable specification 8 4 ... 20 mA HART (active): terminals 3 and 4 9 Supply voltage: terminals 1 and 2 10 Supply voltage: observe terminal voltage, observe cable specification 11 Terminal for potential equalization 12 Cable entry for signal line 13 Cable entry for power supply

Warning!

To ensure electrical safety:

• Do not disconnect the protective connection (6).

• Disconnect the supply voltage before disconnecting the protective earth (7).

Note!

Connect protective earth to the internal ground terminal (7) before connecting the supply voltage. If necessary, connect the potential matching line to the external ground terminal (11).

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Pulscon LTC51

Power supply

Note!

An easily accessible power switch must be installed in the proximity of the device. The power switch must be marked as a disconnector for the device (IEC/EN 61010).

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Pulscon LTC51

[06/07]

10 mm

2- wire

level

4-20 mA PFS

[26/27]

open

Power supply

PROFIBUS PA

Figure 5.6 Terminal assignment PROFIBUS PA

1 Cable screen: observe cable specifications 2 Switch output (open collector): terminals 3 and 4 3 Connection PROFIBUS PA: terminals 1 and 2 4 Terminal for potential equalization line 5 Cable entries

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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 Suitable relays (examples):

• Solid-state relay: Phoenix Contact OV-

Connection of a digital input

1 Pull-up resistor 2 Digital input

24DC/480AC/5 with mounting rail connector UMK-1 OM-R/AMS

• Electromechanical relay: Phoenix Contact PLC-RSC-12DC/21

Table 5.1

Note!

For optimum interference immunity we recommend to connect an external resistor (internal resistance of the relay or Pull-up resistor) of < 1000 .

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Pulscon LTC51

Stromausgang1

Relais1

Stromausgang2

Stromausgang3

Relais2Relais2

versorgungversorgung

EingangEingang

1 2 3

4 5 6

11 12

16 17

24V DC

HART Loop Converter

HART

Current output 1

Relay 1

Current output 2

Current output 3

Relay 2

Power supply

Input

Auxiliary energy

HART

ESC

KFD2-HLCEx1.D.2W

RS232

PWR

ERR

1 2

OUT

19 21

2 4

Power supply

5.2 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.**.

Figure 5.7 Connection example KFD2-HLC-Ex1.D.**: passive 2-wire device and current outputs

The HART loop converter KFD2-HLC-Ex1.D.** can be acquired.

Note!

Additional documentation: see data sheets.

connected as power source

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Pulscon LTC51

Power supply

5.3 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

Pin Meaning 1 Signal + 2 not connected 3 Signal 4 Ground

Table 5.2

Pin assignment of the 7/8 in plug connector

Table 5.3

Pin Meaning 1 Signal 2 Signal + 3 not connected 4 Screen

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Pulscon LTC51

R [Ω]

[V]U

11.5 22.5

20 30 35

500

R [Ω]

[V]U

13.5 24.5

20 30

500

Power supply

5.4 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

•Non-Ex

•ExnA

•CSAGP

•Exic 11.5 ... 32 V

•Exia/IS 11.5 ... 30 V

•Exd/XP

•Exic(ia)

• Ex tD/DIP

Terminal voltage U at the device

11.5 ... 35 V

13.5 ... 30 V

Maximum load R, depending on the supply voltage

at the supply unit

Table 5.4

Feature "Approval" of the product structure

For ambient temperatures Ta  -30 °C (-22 °F) a minimum voltage of 14 V is required for the startup of the device at the MIN error current (3.6 mA). The startup current can be parametrized. If the device is operated with a fixed current I  4.5 mA

(HART multidrop mode), a voltage of U  11.5 V is sufficient throughout the entire range of ambient temperatures.

For ambient temperatures Ta  -20 °C (-4 °F) a minimum voltage of 16 V is required for the startup of the device at the MIN error current (3.6 mA).

Feature "Electrical Output" of the product structure, option IH

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Pulscon LTC51

R [Ω]

U0[V]

12 23

20 30 35

500

Power supply

Approval

•Non-Ex

2-wire; 4 ... 20 mA HART, switch output

Terminal voltage U at the device

12 ... 35 V

Maximum load R, depending on the supply voltage

at the supply unit

•ExnA

•ExnA(ia)

•Exic

•Exic(ia)

•Exd(ia)/XP

•Exta/DIP

•CSAGP

•Exia/IS

12 ... 30 V

• Ex ia + Ex d(ia)/IS + XP

Table 5.5

Feature "Approval" of the product structure

For ambient temperatures Ta  -30 °C (-22 °F) a minimum voltage of 14 V is required for the startup of the device at the MIN error current (3.6 mA).

2014-10

Feature "Electrical Output" of the product structure, option ID

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Pulscon LTC51

R [Ω]

[V]U

13.5 24.5

20 30

500

R [Ω]

U0[V]10

12 23

20 30

500

Power supply

2-wire; 4 ... 20 mA HART, 4 ... 20 mA

Approval

all Channel 1:

Terminal voltage U at the device

13.5 ... 30 V

Channel 2:

12 ... 30 V

Maximum load R, depending on the supply voltage

at the supply unit

Table 5.6

Feature "Approval" of the product structure

For ambient temperatures Ta  -30°C (-22 °F) a minimum voltage of 16 V is required for the startup of the device at the MIN error current (3.6 mA).

Polarity reversal protection yes Admissible residual ripple at f = 0 to 100 Hz USS<1V Admissible residual ripple at

USS<10mV

f = 100 to 10000 Hz

Table 5.7

Feature "Electrical output" of the product structure, option IE

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Pulscon LTC51

Power supply

4-wire, 4 ... 20 mA HART, active

Electrical Output AH: 4-wire 90 ... 253 V AC;

4...20mA HART DH: 4-wire 10.4 ... 48 V DC;

4...20mAHART

Table 5.8

Feature "Electrical Output" the product structure

PROFIBUS PA

Electrical Output PA: 2-wire; PROFIBUS PA,

switch output

Table 5.9

Terminal voltage U Maximum load R 90 ... 253 V AC (50 ... 60 Hz),

500 

max

overvoltage category II

10.4 ... 48 V DC

Approval

•Non-Ex

Terminal voltage

9...32V

•ExnA

•ExnA(ia)

•Exic

•Exic(ia)

•Exd(ia)/XP

•Exta/DIP

•CSAGP

•Exia/IS

9...30V

• Ex ia + Ex d(ia)/IS + XP

Feature "Electrical Output" the product structure

Feature "Approval" of the product structure

Input voltages up to 35 V will not spoil the device.

Polarity sensitive no FISCO/FNICO compliant according to

IEC 60079-27

Table 5.10

yes

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Pulscon LTC51

Power supply

5.5 Power consumption

Electrical output

IH: 2-wire; 4 ... 20 mA HART <0.9W ID: 2-wire; 4 ... 20 mA HART, switch output <0.9W IE: 2-wire; 4 ... 20 mA HART, 4 ... 20 mA <2x0.7W AH: 4-wire 90 ... 253 V AC; 4 ... 20 mA HART 6VA DH: 4-wire 10.4 ... 48 V DC; 4 ... 20 mA HART 1.3 W

Table 5.11

Feature "Electrical Output" of the product structure

5.6 Current consumption

HART

Nominal current 3.6 ... 22 mA, the start-up current for

Breakdown signal (NAMUR NE 43) adjustable: 3.59 ... 22.5 mA

Table 5.12

PROFIBUS PA

Nominal current 14 mA Error current FDE (Fault Disconnection Electronic) 0 mA

Table 5.13

Power consumption

multidrop mode can be parametrized (is set to 3.6 mA on delivery)

5.7 Power supply failure

• Configuration is retained in the HistoROM (EEPROM).

• Error messages (incl. value of operated hours counter) are stored.

5.8 Potential equalization

No special measures for potential equalization are required.

Note!

If the device is designed for hazardous areas, observe the information in the documentation "Safety Instructions" (SI, ZD).

5.9 Terminals

Plug-in spring terminals for wire cross-sections 0.5 ... 2.5 mm2(20 ... 14 AWG)

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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)

• For Dust-Ex, FM IS, CSA IS, CSA GP, Ex nA: metal M20 x 1.5 for cable Ø7 ... 10 mm (0.28...0.39 in)

•For Exd: No gland available

•Thread

•1/2 in NPT

•G1/2

• M20 × 1.5

• Plug M12/plug 7/8 in Only available for Non-Ex, Ex ic, Ex ia

5.11 Cable specification

• Minimum cross-section: dependent on terminals: see chapter 5.9.

• For ambient temperature T

HART

• A normal device cable suffices if only the analog signal is used.

• A shielded cable is recommended if using the HART protocol. Observe grounding concept

of the plant.

• For 4-wire devices: Standard device cable is sufficient for the power line.

PROFIBUS PA

• Use a twisted, screened two-wire cable, preferably cable type A.

Note!

For further information on the cable specifications, see PNO Guideline 2.092 "PROFIBUS PA User and Installation Guideline" and IEC 61158-2 (MBP).

5.12 Overvoltage protection

If the measuring device is used for level measurement in flammable liquids which requires the use of overvoltage protection according to DIN EN 60079-14, standard for test procedures 60060-1 (10 kA, pulse 8/20 s), overvoltage protection has to be ensured by an external overvoltage protection module.

 60 °C(140°F): use cable for temperature T

+20K.

External overvoltage protection

For detailed information please refer to www.pepperl-fuchs.com

The material of the gland is dependent on the housing type; A3 (GT18, stainless steel housing): 316L (1.4404); A1

2014-10

(GT19, plastic housing) and A2 (GT20, aluminum housing): nickel-coated brass (CuZn).

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Pulscon LTC51

Performance characteristics

6 Performance characteristics

6.1 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 %

• Reflection factor  0.8 (water surface for coax probe, metal plate for rod and rope probe with min.1 m (40 in) diameter)

• Flange for rod or rope probe  300 mm (12 in) diameter

• Distance to obstacles  1m(40in)

6.2 Maximum measured error

Typical data under reference operating conditions: DIN EN 61298-2, percentage values in relation to the span.

Output: digital analog Sum of non-linearity, non-

repeatability and hysteresis

Offset/Zero ±4mm(0.16in) 0.03 %

Table 6.1

Add error of the analogous value to the digital value.

If the reference conditions are not met, the offset/zero point arising from the mounting situation may be up to ±12 mm (0.47 in) for rope and rod probes. This additional offset/zero point can be compensated for by entering a correction (parameter "level correction") during commissioning.

• Measuring distance up to15 m (49 ft):

±2mm(0.08in)

• Measuring distance > 15 m (49 ft):

±10 mm (0.39 in)

0.02 %

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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)

40 (1.57)

20 (0.79)

-20 (-0.79)

-40 (-1.57)

-60 (-2.36)

-80 (-3.15)

20 (0.79)

50 (1.97)

40 (1.57)

80 (3.15)

100 (3.94)

150 (5.91)

DC = 2

DC = 80

250 (9.84)

200 (7.87)

300 (11.8)

Figure 6.1 Measuring error at the end-of-probe for rod and coax probes

A Distance from probe end [mm (in)] D Measuring error: sum of non-linearity, non-repeatability and hysteresis DC Dielectric constant

80 (3.15)

60 (2.36)

40 (1.57)

20 (0.79)

-20 (-0.79)

-40 (-1.57)

-60 (-2.36)

-80 (-3.15)

20 (0.79)

50 (1.97)

100 (3.94)

DC = 80

150 (5.91)

200 (7.87)

300 (11.8)

250 (9.84)

Figure 6.2 Measuring error at the end-of-probe for rope probes

A Distance from probe end D Measuring error: sum of non-linearity, non-repeatability and hysteresis DC Dielectric constant

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Pulscon LTC51

Performance characteristics

120 (4.72)

100 (3.94)

80 (3.15)

60 (2.36)

40 (1.57)

20 (0.79)

-20 (-0.79)

-40 (-1.57)

-60 (-2.36)

-80 (-3.15)

-100 (-3.94)

-120 (-4.72)

DC = 2

DC = 80

50 (1.97)

30 (0.79)

150 (5.91)

100 (3.94)

200 (7.87)

250 (9.84)

300 (11.8)

Figure 6.3 Measuring error at the end-of-probe for probes with a metallic centering disk

A Distance from probe end [mm (in)] D Measuring error: sum of non-linearity, non-repeatability and hysteresis DC Dielectric constant

Note!

If for rope probes the DC value is less than 7, then measurement is not possible in the area of the straining weight (0 to 250 mm from end of probe; lower blocking distance).

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Pulscon LTC51

2 mm 0 mm

- 2 mm

100 mm 200 mm

10 mm

- 10 mm

20 mm

- 20 mm

30 mm

- 30 mm

40 mm

- 40 mm

DC = 2 DC = 80

Performance characteristics

In the area of the upper probe end, the measuring error is as follows (rod/rope only):

Figure 6.4 Measuring error at the upper end of the probe

D Sum of non-linearity, non-repeatability and hysteresis R Reference point of measurement DC Dielectric constant

6.3 Resolution

• digital: 1 mm

•analog: 1 µA

6.4 Reaction time

The reaction time can be parametrized. The following step response times (as per DIN EN 61298-2)

Level measurement Probe length Sampling rate Step response time

<10m(33ft) 3.6 measurements/second < 0.8 s < 40 m (131 ft)  2.7 measurements/second < 1 s

Table 6.2

are valid if the damping is switched off:

According to DIN EN 61209-2 the response time is the time which passes after a sudden change of the input

2014-10

signal until the output signal for the first time assumes 90 % of the steady-state value.

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Pulscon LTC51

Performance characteristics

6.5 Influence of ambient temperature

The measurements are carried out in accordance with EN 61298-3

• digital (HART, PROFIBUS PA): average T

For devices with remote sensor ±0.3 mm/10K (0.01 in/10 K) per1 m (3.3 ft) of the remote cable.

• analog (current output):

• zero point (4 mA): average T

• span (20 mA): average T

6.6 Influence of gas layer

High pressures reduce the propagation velocity of the measuring signals in the gas/vapor above the fluid. This effect depends on the kind of gas/vapor and of its temperature. This results in a systematic measuring error that gets bigger as the distance increases between the reference point of the measurement (flange) and the product surface. The following table illustrates this measured error for a few typical gases/vapors (with regard to distance; a positive value means that too large a distance is being measured):

there is an additional offset of

=0.02%/10K

= 0.05 %/10 K

= 0.6 mm/10 K

Gas layer Temperature Pressure

°C °F 1 bar

(14.5 psi)

10 bar (145 psi)

50 bar (725 psi)

100 bar (1450 psi)

200 bar (2900 psi)

400 bar (5800 psi)

Air 20 68 0.00 % 0.22 % 1.2 % 2.4 % 4.9 % 9.5 %

200 392 -0.01 % 0.13 % 0.74 % 1.5 % 3.0 % 6.0 % 400 752 -0.02 % 0.08 % 0.52 % 1.1 % 2.1 % 4.2 %

Hydrogen 20 68 -0.01 % 0.10 % 0.61 % 1.2 % 2.5 % 4.9 %

200 392 -0.02 % 0.05 % 0.37 % 0.76 % 1.6 % 3.1 % 400 752 -0.02 % 0.03 % 0.25 % 0.53 % 1.1 % 2.2 %

Table 6.3

Gas layer Temperature Pressure

Water (saturated

steam)

°C °F 1 bar

(14.5 psi)

100 212 0.26 % – – – – – – – 120 248 0.23 % 0.50 % – – – – – –

2 bar (29 psi)

5 bar (72.5 psi)

10 bar (145 psi)

20 bar (290 psi)

50 bar (725 psi)

100 bar (1450 psi)

152 306 0.20 % 0.42 % 1.14 % – – – – – 180 356 0.17 % 0.37 % 0.99 % 2.10 % – – – – 212 414 0.15 % 0.32 % 0.86 % 1.79 % 3.9 % – – – 264 507 0.12 % 0.26 % 0.69 % 1.44 % 3.0 % 9.2 % – – 311 592 0.09 % 0.22 % 0.58 % 1.21 % 2.5 % 7.1 % 19.3 % – 366 691 0.07 % 0.18 % 0.49 % 1.01 % 2.1 % 5.7 % 13.2 % 76 %

Table 6.4

200 bar (2900 psi)

Product structure: Feature "Probe design", option B)

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Pulscon LTC51

Performance characteristics

6.7 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 ... 350 °C (212 ... 662 °F), for example, the measuring error of the distance measurement can be reduced by this method from up to 29 % (without compensation) to less than 3 % (with compensation).

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Mounting

7Mounting

7.1 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

• for concrete walls: > 500 mm (20 in), otherwise the available measuring range may be reduced.

• Distance (B) between rod or rope probe and internal fittings in the vessel: > 300 mm (12 in)

• Distance (C) from end of probe to bottom of the vessel:

• Rope probe: > 150 mm (6 in)

• Rod probe: > 10 mm (0.4 in)

Note!

For coax probes the distance to the wall and to internal fittings is arbitrary.

•Coax probe: > 10mm(0.4in)

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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.

If a central mounting position can not be avoided, it is crucial to perform an interference echo suppression (mapping) after the commissioning of the device.

• Do not mount the probe in the filling curtain (3).

• Avoid buckling the rope probe during installation or operation (e. g. through product movement against silo wall) by selecting a suitable mounting location.

• Check the probe regularly for defects.

Note!

With suspended rope probes (probe end not fixed at the bottom) the distance between the probe rope and internal fittings in the tank must not fall below 300 mm (12 in) during the entire process. A sporadic contact between the probe weight and the cone of the vessel, however, does not influence the measurement as long as the dielectric constant of the medium is at least DC = 1.8.

Note!

When mounting the electronics housing into a recess (e. g. in a concrete ceiling), observe a minimum distance of 100 mm (4 in) between the cover of the terminal compartment/electronics compartment and the wall. Otherwise the connection compartment/electronics compartment is not accessible after installation.

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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.

6 Nm (4.42 lbf ft)

Figure 7.2

r = 100 (4)

min

6 Nm

(4.42 lbf ft)

A Angled plug at the probe B Angled plug at the electronics housing C Length of the remote cable as ordered

(4.42 lbf ft)

r = 100 (4)

min

6 Nm

6 Nm (4.42 lbf ft)

• Product structure, feature "Probe Design": option B "Sensor remote, 3 m/9 ft cable"

• The remote cable is supplied with these device versions, minimum bending radius: 100 mm (4 in)

• A mounting bracket for the electronics housing is supplied with these device versions. Mounting options:

•Wall mounting

• Pipe mounting; diameter: 42 to 60 mm (1-1/4 to 2 in)

• The connection cable has got one straight and one angled plug (90°). Depending on the local conditions the angled plug can be connected at the probe or at the electronics housing.

Note!

Probe, electronics and connection cable are adjusted to match each other. They are marked by a common serial number. Only components with the same serial number shall be connected to each other.

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Pulscon LTC51

14 mm

Mounting

Divisible probes

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

• probes are separable several times with the following lengths of the individual parts:

•torque: 15Nm

•500mm(20in)

• 1000 mm (40 in)

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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 5

Table 7.1

Bending strength of rod probes

Feature "Probe" Probe Bending strength [Nm] Option 1, 5 Rod 8 mm (1/3 in) 316L 10

Option 8, 9 Rod 12 mm (1/2 in) 316L 30 Option 6, 7 Rod 12 mm (1/2 in) AlloyC 30 Option A, B, C, D Rod 16 mm (0.63 in) 316L

divisible

Table 7.2

Bending load (torque) through fluid flow

The formula for calculating the bending torque M impacting on the probe:

M = cw ×  / 2 × v2 × d × L × (LN - 0.5 × L)

with:

: friction factor

 [kg/m

v [m/s]: Velocity of the medium perpendicular to the probe rod

d [m]: Diameter of the probe rod

L [m]: Level

LN [m]: Probe length

Calculation example

]: Density of the medium

Friction factor c

0.9 (on the assumption of a turbulent

current - high Reynolds number) Density  [kg/m3] 1000 (e. g. water) Probe diameter d [m] 0.008 L = L

(worst case)

Table 7.3

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Pulscon LTC51

Bending torque [M] on rod probes, diameter 8 mm (1/3”)

Probe length [ ] in meters

v = 0.5 m/s v = 0.7 m/s v = 1.0 m/s

max. bending torque

0.4 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6 4

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

18.0

20.0

Bending [Nm]

torque

Mounting

Figure 7.4

Bending strength of coax probes

Feature "Probe" Process connection Probe Bending strength

[Nm]

Option 4, G Thread G3/4 or NPT3/4 Coax 316L,

Ø21.3 mm

•Thread G1-1/2 or NPT1-1/2

Coax 316L, Ø42.4 mm

300

•Flange

Option H, K Flange Coax Alloy C,

300

Ø42.4 mm

Table 7.4

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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.

Threaded connection

Figure 7.5 Mounting with threaded connection; flush with the container ceiling

Seal

The thread as well as the type of seal comply to DIN 3852 Part 1, screwed plug form A.

They can be sealed with the following types of sealing rings:

• Thread G1-1/2: according to DIN 7603 with the dimensions 48 x 55 mm

Please use a sealing ring according to this standard in the form A, C or D and of a material that is resistant to the application.

Note!

For the length of the screwed plug refer to the dimensional drawing: see chapter 10.

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Pulscon LTC51

≤150 (6)

mm (in)

ø ≤150 (6)

Mounting

Nozzle mounting

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 For a larger height the near range measuring capability may be reduced.

:  150 mm (6 in).

Note!

With thermally insulated vessels the nozzle should also be insulated in order to prevent condensate formation.

Center rod

For rope probes it may be necessary to use a version with center rod in order to prevent the probe rod from coming into contact with the nozzle wall. Probes with center rod are available for the device.

Max. nozzle height (= length of the center rod)

150 mm 2 6 in 3 300 mm E 12 in F

Table 7.5

Option to be selected in feature "Probe"

2014-10

Larger nozzle heights on request

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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

1 Lower edge of the nozzle 2 Approx. flush with the lower edge of the nozzle (±50 mm/2 in) 3 Plate 4 Pipe diameter 150 to 180 mm (6 to 7 in)

Nozzle diameter Plate diameter 300 mm (12 in) 280 mm (11 in)

 400 mm (16 in)  350 mm (14 in)

Table 7.6

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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.

• Depending on process pressure and process temperature check and retighten the screws

at regular intervals.

Flange size Number of screws Recommended torque [Nm]

DN40/PN40 4 35 55 DN50/PN16 4 45 65 DN50/PN40 4 45 65 DN80/PN16 8 40 55 DN80/PN40 8 40 55 DN100/PN16 8 40 60 DN100/PN40 8 55 80 DN150/PN16 8 75 115 DN150/PN40 8 95 145

ASME

1-1/2 in/150 lbs 4 20 30 1-1/2 in/300 lbs 4 30 40 2 in/150 lbs 4 40 55 2 in/300 lbs 8 20 30 3 in/150 lbs 4 65 95 3 in/300 lbs 8 40 55 4 in/150 lbs 8 45 70 4 in/300 lbs 8 55 80 6 in/150 lbs 8 85 125 6 in/300 lbs 12 60 90

JIS

10K 40A 4 30 45 10K 50A 4 40 60 10K 80A 8 25 35 10K 100A 8 35 55 10K 100A 8 75 115

Table 7.7

minimum maximum

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Mounting

7.1.5 Securing the probe

Securing rope probes

Figure 7.8

A Sag of the rope:  1 cm per 1 m of the probe length (0.12 in per 1 ft of the probe length) B Reliably grounded end of probe C Reliably isolated end of probe 1 Mounting and contact with a bolt 2 Mounting kit isolated

• The end of the probe needs to be secured under the following conditions: if otherwise the probe sporadically comes into contact with the wall of the vessel, the outlet cone, internal fittings or other parts of the installation.

• The end of probe can be secured at its internal thread: rope 4 mm (1/6 in), 316: M14

• The fixing must be either reliably grounded or reliably insulated. If it is not possible to mount the probe weight with a reliably insulated connection, it can be secured using an isolated eyelet, which is available as an accessory.

• In order to prevent an extremely high tensile load (e. g. due to thermal expansion) and the risk of rope crack, the rope has to be slack. Make the rope longer than the required measuring range such that there is a sag in the middle of the rope that is  1cm/(1 m rope length) [0.12 in/(1 ft rope length)].

Tensile load limit of rope probes: see chapter 7.

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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.

• Rod probes may only be supported at the end of the probe.

∅ a

∅ b

≈50 (1.97)

∅ < 25 (1.0)

≈3 (0.12)

≈50 (1.97)

mm (in)

Figure 7.9

1 Probe rod, uncoated 2 Sleeve bored tight to ensure electrical contact between the rod and sleeve! 3 Short metal pipe, e. g. welded in place 4 Probe rod, coated 5 Plastic sleeve, e. g. PTFE, PEEK or PPS 6 Short metal pipe, e. g. welded in place

Ø probe Øa [mm (in)] Øb [mm (in)] 8 mm (1/3 in) < 14 (0.55) 8.5 (0.34)

12 mm (1/2 in) < 20 (0.78) 12.5 (0.52) 16 mm (0.63 in) < 26 (1.02) 16.5 (0.65)

Table 7.8

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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.

Securing coax probes

For WHG-approvals: For probe lengths  3 m (10 ft) a support is required.

Figure 7.10

Coax probes can be supported at any point of the outer tube.

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Pulscon LTC51

≥100

(3.94)

øD

ød

≥100

(3.94)

Mounting

Special mounting conditions

Bypasses and stilling wells

Figure 7.11

A Mounting in a stilling well B Mounting in a bypass C Center washer or centering star (on request) 1 Metallic center washer (316L) for level measurement (on request) 2 Fixing screw; torque: 25 Nm ±5Nm 3 Non-metallic centering star (PEEK, PFA) for interface measurement (on request) 4 Minimum distance between end of probe and lower edge of the bypass; see table below

Allocation of probe type and center washer or centering star to pipe diameter

Type of probe Center washer or centering star Pipe

Ød [mm (in)] Material ØD [mm (in)]

Rod probe 75 (2.95) 316L DN80/3 to DN100/4 in Rod probe 45 (1.77) 316L DN50/2 to DN65/2-1/2 in Rope probe 75 (2.95) 316L DN80/3 to DN100/4 in

Table 7.9

Minimum distance between end of probe and lower edge of the bypass

2014-10

Type of probe Minimum distance Rope 150 mm (6 in)

Rod 10 mm (0.4 in) Coax 10 mm (0.4 in)

Table 7.10

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Pulscon LTC51

Mounting

• Pipe diameter: > 40 mm (1.6 in) for rod probes

• Rod probe installation can take place up to a diameter size of 150 mm (6 in). In the event of larger diameters, a coax probe is recommended.

• Side disposals, holes or slits and welded joints that protrude up to approx. 5 mm (0.2 in) inwards do not influence the measurement.

• The pipe may not exhibit any steps in diameter.

• The probe must be 100 mm (4 in) longer than the lower disposal.

• Within the measuring range, the probe must not get into contact with the pipe wall. If necessary, use a center washer or centering star.

• If the center washer or centering star is mounted at the end of the probe, it enables a reliable recognition of the end-of-probe signal.

• Coax probes can always be applied if there is enough mounting space.

Note!

For bypasses with condensate formation (water) and a medium with low dielectric constant (e. g. hydrocarbons):

In the course of time the bypass is filled with condensate up to the lower disposal and for low levels the level echo is superimposed by the condensate echo. Thus in this range the condensate level is measured instead of the correct level. Only higher levels are measured correctly. To prevent this, position the lower disposal 100 mm (4 in) below the lowest level to be measured and apply a metallic centering disk at the height of the lower edge of the lower disposal.

Note!

With heat insulated tanks the bypass should also be insulated in order to prevent condensate formation.

Note!

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.

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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).

Underground tanks

Figure 7.13

Use a coax probe for nozzles with large diameters in order to avoid reflections at the nozzle wall.

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Mounting

Installation at an angle

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.

• Up to LN = 1 m (3.3 ft):  = 30°

• Up to LN = 2 m (6.6 ft):  = 10°

• Up to LN = 4 m (13.1 ft):  = 5°

Non-metallic vessels

Figure 7.15

1 Non-metallic vessel 2 Metal sheet or metal flange

To measure, device with a rod probe needs a metallic surface at the process connection. Therefore:

• Select an instrument version with metal flange (minimum size DN50/2 in).

• Or: mount a metal sheet with a diameter of at least 200 mm (8 in) to the probe at the process connection. Its orientation must be perpendicular to the probe.

Note!

No additional measures are required for coax probes.

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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

1 Plastic or glass tank 2 Metal sheet with threaded sleeve 3 No free space between tank wall and probe!

Requirements

• The dielectric constant of the medium must be at least DC > 7.

• The tank wall must be non-conductive.

• Maximum wall thickness (a):

• Plastic: < 15 mm (0.6 in)

• Glass: < 10 mm (0.4 in)

• There may be no metallic reinforcements fixed to the tank.

Mounting conditions:

• The probe must be mounted directly to the tank wall (no open space)

• A plastic half pipe with a diameter of approx. 200 mm (8 in), or some other protective unit, must be affixed externally to the probe to prevent any influences on the measurement.

• If the tank diameter is less than 300 mm (12 in): A metallic grounding sheet must be installed at the opposite side of the tank. The sheet must be conductively connected to the process connection and cover about the half of the vessel's circumference.

• If the tank diameter exceeds 300 mm (12 in): A metal sheet with a diameter of at least 200 mm (8") must be mounted to the probe at the process connection. Its orientation must be perpendicular to the probe (see above).

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Pulscon LTC51

mm (in)

MAX MAX

Mounting

Vessels wi th h eat i nsulation

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.

MAX

Figure 7.17 Process connection with thread

1 Tank insulation 2 Compact device 3 Sensor remote (feature "Probe design")

MAX

Figure 7.18 Process connection with flange

1 Tank insulation 2 Compact device 3 Sensor remote (feature "Probe design")

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Mounting

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. Replacement is also possible when partially filled, and wet calibration is not required.

Your benefits:

• No moving parts, thus zero-maintenance operation.

• Not sensitive to process influences such as temperature, density, turbulence and vibrations.

• The rod probes can be shortened or replaced easily. In this way, the probe can be easily adjusted on site.

Figure 7.19

1 Flange of the displacer chamber

Planning instructions:

• In normal cases, use a rod probe. When installing into a metallic displacer chamber up to 150 mm, you have all the advantages of a coax probe.

• It must be ensured that the probe does not come into contact with the side wall. Where necessary, use a center washer or centering star at the lower end of the probe.

• The center washer or centering star must be adapted as accurately as possible to the internal diameter of the displacer chamber to also ensure perfect operation in the area of the probe end.

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Operating conditions: Environment

8 Operating conditions: Environment

8.1 Ambient temperature range

Measuring device -40 ... +80 °C(-40 ... +176°F) Local display -20 ... +70 °C (-4 ... +158 °F), the readability

Connection cable (for "Probe Design" = "Sensor remote")

Table 8.1

When operating the device in the open with strong sunlight:

• Mount the device in a shady position.

• Avoid direct sunlight, especially in warmer regions.

• Use a weather protection cover (see accessories).

8.2 Ambient temperature limits

of the display may be impaired at temperatures outside the temperature range.

max. 100 °C (212 °F)

The following diagrams take into account only function requirements. There may be further restrictions for certified device versions. Separate Safety Instructions see chapter 15.2.

With a temperature (T reduced according to the following diagram (temperature derating):

) at the process connection the admissible ambient temperature (Ta) is

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Pulscon LTC51

[°C] ([°F]) T

[°C]

([°F])

[°C]

([°F])

+200

(+392)

+200

(+392)

+82

(+180)

+79

(+174)

+74

(+165)

-40

(-40)

-40

(-40)

A2 (GT20):

+58 (+136)

A2 (GT20):

+54 (+129)

A3 (GT18):

+48 (+118)

A3 (GT18):

+48 (+118)

A1 (GT19):

+29 (+84)

A1 (GT19):

+29 (+84)

+80 (+176)

A2/A3 (GT18/20): +79 (+174)

A1 (GT19): +74 (+165)

-40 (-40)

4 … 20 mA HART

IH:

420 mAHART...

420 mA...

IE:

90...253 V AC

AH:

10.4...48 V DC

DH:

[°C] ([°F]) T

[°C]

([°F])

+200

(+392)

-40

(-40)

A2 (GT20):

+57 (+134)

A3 (GT18):

+48 (+117)

+81 (+178)

-40 (-40)

[°C] ([°F]) T

[°C]

([°F])

+200

(+392)

+79

(+174)

-40

(-40)

A2 (GT20):

+54 (+129)

A3 (GT18):

+48 (+117)

+79 (+174)

-40 (-40)

PROFIBUS PA

Switch output

+81

(+178)

PROFIBUS PA

PA :

Operating conditions: Environment

Temperature derating with threaded connection G3/4 or NPT3/4

A1 (GT19) = plastic housing A2 (GT20) = aluminum housing A3 (GT18) = stainless steel

housing

Table 8.2

For PROFIBUS PA the temperature derating depends on the usage of the switch output. (PA 1: switch output not connected; PA 2: switch output connected).

For saturated steam applications the process temperature should not exceed 150 °C (302 °F).

2014-10

IH = 1 current output IE = 2 current outputs

, PA 2= PROFIBUS PA

PA AH, DH = 4-wire

Ta = ambient temperature

= temperature at the process

connection

Page 64

Pulscon LTC51

[°C] ([°F]) T

[°C]

([°F])

[°C]

([°F])

+200

(+392)

+200

(+392)

+82

(+180)

+79

(+174)

+74

(+165)

-40

(-40)

-40

(-40)

A2 (GT20):

+57 (+135)

A2 (GT20):

+54 (+129)

A3 (GT18):

+49 (+120)

A3 (GT18):

+49 (+120)

A1 (GT19):

+20 (+68)

A1 (GT19):

+20 (+68)

+80 (+176)

-40 (-40)

[°C] ([°F]) T

[°C]

([°F])

+200

(+392)

-40

(-40)

A2 (GT20):

+57 (+134)

A3 (GT18):

+49 (+120)

+81 (+178)

-40 (-40)

[°C] ([°F]) T

[°C]

([°F])

+200

(+392)

+79

(+174)

-40

(-40)

A2 (GT20):

+54 (+129)

A3 (GT18):

+49 (+120)

+79 (+174)

-40 (-40)

+81

(+178)

A2/A3 (GT18/20): +79 (+174)

A1 (GT19): +74 (+165)

4 … 20 mA HART

IH:

420 mAHART...

420 mA...

IE:

90...253 V AC

AH:

10.4...48 V DC

DH:

PROFIBUS PA

Switch output

PROFIBUS PA

PA :

Operating conditions: Environment

Temperature derating for with threaded connection G1-1/2 or NPT1-1/2

A1 (GT19) = plastic housing A2 (GT20) = aluminum housing A3 (GT18) = stainless steel

housing

Table 8.3

For PROFIBUS PA the temperature derating depends on the usage of the switch output. (PA 1: switch output not connected; PA 2: switch output connected).

For saturated steam applications the process temperature should not exceed 150 °C (302 °F).

IH = 1 current output IE = 2 current outputs

, PA 2= PROFIBUS PA

PA AH, DH = 4-wire

Ta = ambient temperature

= temperature at the process

connection

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Pulscon LTC51

[°C] ([°F]) T

[°C]

([°F])

[°C]

([°F])

+200

(+392)

+200

(+392)

+82

(+180)

+79

(+174)

+74

(+165)

-40

(-40)

-40

(-40)

A2 (GT20):

+59 (+138)

A2 (GT20):

+55 (+131)

A3 (GT18):

+53 (+127)

A3 (GT18):

+51 (+124)

A1 (GT19):

+33 (+91)

A1 (GT19):

+33 (+91)

+80 (+176)

-40 (-40)

420 mAHART

...

IH:

4 20 mA HART...

4 20 mA...

IE:

90...253 V AC

AH:

10.4...48 V DC

DH:

[°C] ([°F]) T

[°C]

([°F])

+200

(+392)

-40

(-40)

A2 (GT20):

+58 (+136)

A3 (GT18):

+53 (+127)

+81 (+178)

-40 (-40)

[°C] ([°F]) T

[°C]

([°F])

+200

(+392)

+79

(+174)

-40

(-40)

A2 (GT20):

+55 (+130)

A3 (GT18):

+51 (+123)

+79 (+174)

-40 (-40)

+81

(+178)

A2/A3 (GT18/20): +79 (+174)

A1 (GT19): +74 (+165)

PROFIBUS PA

Switch output

PROFIBUS PA

PA :

Operating conditions: Environment

Temperature derating with flange

A1 (GT19) = plastic housing A2 (GT20) = aluminum housing A3 (GT18) = stainless steel

housing

Table 8.4

For PROFIBUS PA the temperature derating depends on the usage of the switch output. (PA 1: switch output not connected; PA 2: switch output connected).

For saturated steam applications the process temperature should not exceed 150 °C (302 °F).

2014-10

IH = 1 current output IE = 2 current outputs

, PA 2= PROFIBUS PA

PA AH, DH = 4-wire

Ta = ambient temperature

= temperature at the process

connection

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Operating conditions: Environment

8.3 Storage temperature

-40 ... +80 °C (-40 ... +176 °F)

8.4 Climate class

DIN EN 60068-2-38 (test Z/AD)

8.5 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.

8.6 Degree of protection

• With closed housing tested according to:

• IP68, NEMA6P (24 h at 1.83 m under water surface)

• For plastic housing with transparent cover (display module): IP68 (24 h at 1.00 m under water surface)

• IP66, NEMA4X

• With open housing: IP20, NEMA1

• Display module: IP22, NEMA2

Note!

Degree of protection IP68 NEMA6P applies for M12 PROFIBUS PA plugs only when the PROFIBUS cable is plugged in and is also rated IP68 NEMA6P.

8.7 Vibration resistance

DIN EN 60068-2-64/IEC 68-2-64: 20 ... 2000 Hz, 1 (m/s2)2/Hz

8.8 Cleaning the probe

Depending on the application, contamination or buildup can accumulate on the probe. A thin, even layer only influences measurement slightly. Thick layers can dampen the signal and then reduce the measuring range. Severe, uneven buildup, adhesion e. g. through crystallization, can lead to incorrect measurement. In this case, we recommend that you use a non-contact measuring principle, or check the probe regularly for soiling.

also valid for the "Sensor remote" version

This restriction is valid if the following options of the product structure have been selected at the same time: feature "Display, Operation" = D "SD02" or E "SD03"; feature "Housing" = A1 (GT19).

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Operating conditions: Environment

8.9 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 analogue signal is used, unshielded interconnection lines are sufficient for the installation.

In case of using the digital signal (HART/PA) use shielded interconnection lines.

Max. fluctuations during EMC- tests: < 0.5 %of the span.

When installing the probes in metal and concrete tanks and when using a coax probe:

• Interference emission to EN 61326-X series, electrical equipment class B.

• Interference immunity to EN 61326-X series, requirements for industrial areas and NAMUR Recommendation NE 21 (EMC)

The measured value can be affected by strong electromagnetic fields when installing rod and rope probes without a shielding/metallic wall, e. g. in plastic and wooden silos.

• Interference emission to EN 61326-X series, electrical equipment class A.

• Interference immunity: the measured value can be affected by strong electromagnetic fields.

. If only the

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Can be downloaded from www.pepperl-fuchs.com.

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Pulscon LTC51

Process

9Process

9.1 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)

EPDM (70C4 pW FKN or E7515) -40 ... +120 °C (-40 ... +248 °F) FFKM (Kalrez 6375)

Table 9.1

only in combination with a gas-tight feed through.

Recommended for steam applications.

Not recommended for saturated steam above 150 °C (302 °F).

-40 ... +150 °C (-40 ... +302 °F)

-20 ... +200 °C (-4 ... +392 °F)

Note!

With uncoated probes, the medium temperature may be higher, under the condition that the maximum process temperature specified in the table above is not exceeded at the process connection.

However, when using rope probes, the stability of the probe rope is reduced by structural changes at temperatures above 350 °C (662 °F).

9.2 Process pressure range

Device Process pressure LTC51 -1 ... 40 bar (-14.5 ... 580 psi)

Table 9.2

Note!

This range may be reduced by the selected process connection. The pressure rating (PN) specified on the flanges refers to a reference temperature of 20 °C, for ASME flanges 100 °F. Pay attention to pressure-temperature dependencies.

Please refer to the following standards for the pressure values permitted for higher temperatures:

• EN 1092-1: 2001 table 18 With regard to their temperature stability properties, the materials 1.4435 and 1.4404 are grouped under 13E0 in EN 1092-1 table 18. The chemical composition of the two materials can be identical.

• ASME B 16.5a - 1998 table 2-2.2 F316

• ASME B 16.5a - 1998 table 2.3.8 N10276

• JIS B 2220

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Process

9.3 Dielectric constant (DC)

• Coax probes: DC (r)  1.4

• Rod and rope probe: DC ( DC (

)  1.4)

9.4 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 length

)  1.6 (when installing in pipes DN  150mm(6in):

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Pulscon LTC51

144 (5.67)

134.5 (5.3)

ø106 (4.17)

78 (3.07)

90 (3.54)

99.5 (3.92)*

ø10 6 (4

)

R100

144 (5.67)

141.5 (5.57)

117.1 (4.61)

ø104.5 (4.11)

ø108.5 (4.27)

78 (3.07)

90 (3.54)

97 (3.82)*

ø103.5

(4.07)

R100

144 (5.67)

141.9 (5.59)

115.25 (4.54)

ø108.5 (4.27)

78 (3.07) 90 (3.54)

98 (3.86)*

ø103.5 (4.07)

R100

Mechanical construction

10 Mechanical construction

10.1 Dimensions

Dimensions of the electronics housing

Figure 10.1 Housing A1 (GT19), plastics PBT; dimensions in mm (in)

Figure 10.2 Housing A2 (GT20), Alu coated; dimensions in mm (in)

Figure 10.3 Housing A3 (GT18), 316L; Dimensions in mm (in)

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Pulscon LTC51

122 (4.8)

(2)

(3.4)

(2.8)

140 (5.5)

158 (6.2)

175 (6.9)

(2)

mm (in)

Mechanical construction

Dimensions of the mounting bracket

Figure 10.4

A Wall mounting B Pipe mounting

Note!

For the "Sensor remote" device version (see feature "Probe Design" of the product structure), the mounting bracket is part of the delivery. If required, it can also be ordered as an accessory.

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Pulscon LTC51

150 (5.91)

20 (0.79)

ø4 (0.16) ø4 (0.16)

ø8 (0.31)

ø22 (0.87)

SW7 AF7

ø22 0( .87)

12 0( .47)

8 (0.31)

M14

GFHI

ø10 (0.4)

122(4.8)

(2.05)

15 (0.6)

(2.4)

ø82.5 (3.25)

ø10.2 (0.4)

min

= 100 (4)

43 (1.7)

68.8 (2.71)

G¾ NPT¾

(0.98)

ø59.35 (2.34)

SW36 AF36

2 (0.08)

Mechanical construction

Dimensions of process connection (G3/4, NPT3/4) and probe

Figure 10.5 Process connection/probe

A Mounting bracket for probe design "Sensor remote" (feature "Probe design") B Thread ISO228 G3/4 or ANSI MNPT3/4 (feature "Process connection") F Rope probe 4 mm or 1/6 in (feature "Probe") G Rope probe 4 mm or 1/6 in; centering disk on request (feature "Probe") H Rod probe 8 mm or 1/3 in (feature "Probe") I Coax probe (feature "Probe") LN Length of probe R Reference point of the measurement

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Pulscon LTC51

JK M

150 (5.91)

ø12 (0.47)

ø16 (0.63)

(1.54)

500 (19.7)

1000 (39.4)

2.2 (0.09)

min. 50 (1.97)

max. 551 (21.7)

max. 1051 (41.4)

SW14

AF14 SW10 AF10

SW14

AF14

SW14 AF14

SW10 AF10

ø22 0( .87)

ø4 0( .16)

20 (0.79)

ø42.4

1( .67)

ø12 0( .47) ø12 0( .47)

ø42.2 1( .66)*

M14

2 (0.08)

2.77 (0.11)

9 (0.35)

12 0( .47)

40 (1.57)

122(4.8)

(2.05)

15 (0.6)

(2.4)

ø82.5 (3.25)

ø10.2 (0.4)

min

= 100 (4)

43 (1.7)

78 (3.1)

G1½

NPT1½

(0.98)

(1.02)

ø59.35 (2.34)

SW55 AF55

ø10 (0.4)

Mechanical construction

Dimensions of process connection (G1-1/2, NPT1-1/2, flange) and probe

Figure 10.6 Process connection/probe

A Mounting bracket for probe design "Sensor remote" (feature "Probe design") C Thread ISO228 G1-1/2 (feature "Process connection") D Thread ANSI MNPT1-1/2 (feature "Process connection") E Flange ANSI B16.5, EN1092-1, JIS B2220 (feature "Process connection") J Rope probe 4 mm or 1/6 in (feature "Probe") K Rope probe 4 mm or 1/6 in; centering disk on request (feature "Probe") L Rod probe 12 mm or 1/2 in; centering disk on request (feature "Probe") M Rod probe 16 mm or 0.63 in, 20 in or 40 in divisible; centering disk on request

(feature "Probe")

N Coax probe; Alloy C (feature "Probe") O Coax probe; 316L (feature "Probe") LN Length of probe R Reference point of the measurement

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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) -20 (-0.79) -30 (-1.18)

Table 10.1

Rope 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)] -10 (-0.39) -20 (-0.79) -30 (-1.18) -40 (-1.57)

Table 10.2

10.3 Surface roughness of Alloy C coated flanges

Ra = 3.2 µm; lower surface roughness levels are available on request.

This value is valid for flanges with "Alloy C > 316/316L"; see product structure, feature "Process connection". For other flanges the surface roughness matches the corresponding flange standard.

10.4 Shortening probes

If necessary, probes can be shortened. When doing so, the following must be observed:

Shortening rod probes

Rod probes must be shortened if the distance to the container floor or outlet cone is less than 10 mm (0.4 in). The rods of a rod probe are shortened by sawing at the bottom end.

Shortening rope probes

Rope probes must be shortened if the distance to the container floor or outlet cone is less than 150mm(6in).

Shortening coax probes

Coax probes must be shortened if the distance to the container floor or outlet cone is less than 10 mm (0.4 in).

Note!

Coax probes can be shortened max. 80 mm (3.2 in) from the end. They have centering units inside, which fix the rod centrally in the pipe. The centerings are held with borders on the rod. Shortening is possible up to approx. 10 mm (0.4 in) below the centering unit.

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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

Part Weight Part Weight Sensor approx. 0.8 kg Rod probe 8 mm approx. 0.4 kg/m

Rope probe 4 mm approx. 0.,1 kg/m

probe length

Table 10.4

Coax probe approx. 1.2 kg/m

probe length

Device with threaded connection G1-1/2/NPT1-1/2 or flange

Part Weight Part Weight Sensor approx. 1.2 kg and

weight of flange

Rope probe 4 mm approx. 0.1 kg/m

probe length

Rod probe 12 mm approx. 0.9 kg/m

probe length

Table 10.5

Rod probe 16 mm approx. 1.1 kg/m

probe length

Coax probe approx. 3.0 kg/m

probe length

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2.1

2.2

5.2

5.1

943

Mechanical construction

10.6 Materials: A1 (GT19) housing

Figure 10.7

No. Part Material 1 Housing PBT

2.1 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

2.2 Cover of the terminal compartment •Cover: PBT

•Cover seal: EPDM

• Thread-coating: heat-curing lubricant varnish

4 Lock at the housing neck •Screw: A4-70

• Clamp: 316L (1.4404)

5.1 Dummy plug, cable gland, adapter or plug (depending on the device version)

• Dummy plug, depending on the device version:

– PE – PBT-GF

• Cable gland, depending on the device version:

– Nickel-plated brass (CuZn) – PA

• Adapter: 316L (1.4404/1.4435)

•Seal: EPDM

5.2 Dummy plug, cable gland or adapter (depending on the device version)

• M12 plug: Nickel-plated brass

• 7/8 in plug: 316 (1.4401)

• Dummy plug, depending on the device version:

– PE – PBT-GF – Steel, galvanized

• Cable gland, depending on the device version:

– Nickel-plated brass (CuZn) – PA

• Adapter: 316L (1.4404/1.4435)

•Seal: EPDM

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Mechanical construction

No. Part Material 6 Dummy plug or M12 socket

(depending on the device version)

• Dummy plug: Nickel-plated brass (CuZn)

• M12 socket: Nickel-plated GD-Zn 7 Pressure relief stopper Nickel-plated brass (CuZn) 8 Ground terminal •Screw: A2

•Spring washer: A4

• Clamp: 304 (1.4301)

• Holder: 304 (1.4301) 9 Nameplate Sticker

Table 10.6

For the version with M12 plug the sealing material is Viton.

For the version with 7/8 in plug, the sealing material is NBR.

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2.1

2.2

5.2

5.1

943

Mechanical construction

10.7 Materials: A2 (GT20) housing

Figure 10.8

No. Part Material 1 Housing • Housing: AlSi10Mg (< 0.1 % Cu)

• Coating: Polyester

2.1 Cover of the electronics compartment • Cover: AlSi10Mg (< 0.1 % Cu)

•Window: glass

•Cover seal: EPDM

• Thread-coating: heat-curing lubricant varnish

2.2 Cover of the terminal compartment • Cover: AlSi10Mg (< 0.1 % Cu)

•Cover seal: EPDM

• Thread-coating: heat-curing lubricant varnish

3 Cover lock •Screw: A4

• Clamp: 316L (1.4404)

4 Lock at the housing neck •Screw: A4-70

• Clamp: 316L (1.4404)

5.1 Dummy plug, cable gland, adapter or plug (depending on the device version)

• Dummy plug, depending on the device version:

– PE – PBT-GF

• Cable gland, depending on the device version:

– Nickel-plated brass (CuZn) – PA

• Adapter: 316L (1.4404/1.4435)

•Seal: EPDM

• M12 plug: Nickel-plated brass

• 7/8 in plug: 316 (1.4401)

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Mechanical construction

No. Part Material

5.2 Dummy plug, cable gland or adapter (depending on the device version)

• Dummy plug, depending on the device version:

– PE – PBT-GF – Steel, galvanized

• Cable gland, depending on the device version:

– Nickel-plated brass (CuZn) – PA

• Adapter: 316L (1.4404/1.4435)

•Seal: EPDM

6 Dummy plug or M12 socket

(depending on the device version)

• Dummy plug: Nickel-plated brass (CuZn)

• M12 socket: Nickel-plated GD-Zn 7 Pressure relief stopper Nickel-plated brass (CuZn) 8 Ground terminal •Screw: A2

•Spring washer: A2

• Clamp: 304 (1.4301)

• Holder: 304 (1.4301) 9 Nameplate Sticker

Table 10.7

For the version with M12 plug the sealing material is Viton.

For the version with 7/8 in plug, the sealing material is NBR.

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2.1

2.2

5.2

5.1

943

Mechanical construction

10.8 Materials: A3 (GT18) housing

Figure 10.9

No. Part Material 1 Housing 316L (CF-3M, 1.4404)

2.1 Cover of the electronics compartment • Cover: 316L (CF-3M, 1.4404)

•Window: glass

•Cover seal: EPDM

• Thread-coating: heat-curing lubricant varnish

2.2 Cover of the terminal compartment • Cover: 316L (CF-3M, 1.4404)

•Cover seal: EPDM

• Thread-coating: heat-curing lubricant varnish

3 Cover lock •Screw: A4

• Clamp: 316L (1.4404)

4 Lock at the housing neck •Screw: A4-70

• Clamp: 316L (1.4404)

5.1 Dummy plug, cable gland, adapter or plug (depending on the device version)

• Dummy plug, depending on the device version:

– PE – PBT-GF

• Cable gland: 316L (1.4404) or nickel-plated brass

• Adapter: 316L (1.4404/1.4435)

•Seal: EPDM

• M12 plug: Nickel-plated brass

5.2 Dummy plug, cable gland or adapter (depending on the device version)

6 Dummy plug or M12 socket

(depending on the device version)

• 7/8 in plug: 316 (1.4401)

• Dummy plug: 316L (1.4404)

• Cable gland: 316L (1.4404) or nickel-plated brass

• Adapter: 316L (1.4404/1.4435)

•Seal: EPDM

• Dummy plug: 316L (1.4404)

• M12 socket: 316L (1.4404)

7 Pressure relief stopper 316L (1.4404)

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Mechanical construction

No. Part Material 8 Ground terminal •Screw: A4

•Spring washer: A4

• Clamp: 316L (1.4404)

• Holder: 316L (1.4404)

9 Nameplate • Plate: 316L (1.4404)

• Groove pin: A4 (1.4571)

Table 10.8

For the version with M12 plug the sealing material is Viton.

For the version with 7/8 in plug, the sealing material is NBR.

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1.1

1.2

1.1

1.2

1.1

9.1

1.2

9.2

1.1

9.1

Mechanical construction

10.9 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. The chemical composition of the two materials can be identical.

Threaded connection Flange No. Material G3/4,

G1-1/2 NPT1-1/2 DN40 ... DN200 DN40 ... DN100

NPT3/4

1.1 316L (1.4404)

1.2 Alloy C22 (2.4602) 2 ASME: 316/316L

EN: 316L (1.4404)

JIS: 316L (1.4435) 3 Ceramic Al2O3 99.7 % 4 Cladding: Alloy C22

(2.4602)

Table 10.9

10.10 Materials: Probe

Rope probe Rod probe Coax probe No. Material Ø4 mm

(1/6 in)

Ø4 mm (1/6 in) with centerin g disk (on request)

Ø8 mm (1/3 in)

Ø12.7 m m (1/2 in) Alloy C

Thread G3/4

Thread G1-1/2 Alloy C

Thread G1-1/2 316L

Table 10.10

1.1 316L (1.4404)

1.2 Alloy C22 (2.4602) 2 316 (1.4401) 3 316L (1.4435) 4 Set screw: A4-70 5 Screw for tightening:

A2-70 7 Disk: e. g. 316L

(1.4404)

9.1 Rod: 316L (1.4404)

9.2 Alloy C22 (2.4602) 10 Centering star: PFA

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Mechanical construction

Rod probe No. Material Ø12 mm (1/2 in)

316L

Table 10.11

Ø16 mm (2/3 in) divisible

1 316L (1.4404) 3 Connecting bolt: Alloy C22 (2.4602)

Nord-Lock washer: 1.4547

11 Hexagon head screw: A4-70

Nord-Lock washer: 1.4547

12 Centering star on request: PEEK

Center washer on request: 316L (1.4404)

13 Center washer on request: PFA

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Mechanical construction

10.11 Materials: Mounting bracket

Figure 10.10

Mounting bracket for version "Sensor remote" No. Component Material 10 Bracket 316L (1.4404)

11 Bracket 316Ti (1.4571)

Screw/nuts A4-70 Distance sleeves 316Ti (1.4571) or 316L (1.4404)

12 Half-shells 316L (1.4404)

Table 10.12

10.12 Materials: Adapter and cable

Figure 10.11

Adapter and cable for version "Sensor remote" No. Component Material 1 Cable FRNC

2 Sensor adapter 304 (1.4301) 3 Clamp 316L (1.4404)

Screw A4-70

4 Loop 316 (1.4401)

Crimp sleeve aluminum Nameplate 304 (1.4301)

Table 10.13

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2.1

3.1

3.2

5.1

5.2

4 6

2.2

2.1

Mechanical construction

10.13 Materials: Weather protection cover

Figure 10.12

Weather protection cover No. Part: material No. Part: material 1 Protection cover: 304 (1.4301) 4 Bracket: 304 (1.4301)

2.1 Washer: A2 5.1 Cheese head screw: A2-70

2.2 Cheese head screw: A4-70 5.2 Nut: A2

3.1 Washer: A2 6 Ground terminal

3.2 Tightening screw: 304 (1.4301)

•Screw: A4

•Spring washer: A4

• Clamp: 316L (1.4404)

• Holder: 316L (1.4404)

Table 10.14

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Operability

11 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 product structure)

Quick and safe commissioning

• Guided menus ("Make-it-run" wizards) for applications

• Menu guidance with brief explanations of the individual parameter functions

Reliable operation

• Standardized operation at the device and in the operating tools

• Data storage device (HistoROM) for process and measuring device data with event logbook available at all times – even if electronics modules are replaced

Efficient diagnostics increase measurement reliability

• Remedy information is integrated in plain text

• Diverse simulation options and line recorder functions

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Pulscon LTC51

–

Operability

11.2 Local operation

Order code for "Display, operation", option D "SD02"

Order code for "Display, operation", option E "SD03"

1 Operation with push buttons 1 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; switches to red in event of device errors

• Format for displaying measured variables and status variables can be individually configured

• Permitted ambient temperature for the display: -20 ... +70 °C (-4 ... +158 °F)

The readability of the display may be impaired at temperatures outside the temperature range.

Operating elements

• In the case of order code "Display, operation", option C: local operation with 3 push buttons (,,)

• In the case of order code for "Display, operation", option E: external operation via touch control; 3 optical keys: , ,

• Operating elements also accessible in various hazardous areas

Additional functionality

• Data backup function

The device configuration can be saved in the display module.

• Data comparison function

The device configuration saved in the display module can be compared to the current device configuration.

• Data transfer function

The transmitter configuration can be transmitted to another device using the display module.

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Pulscon LTC51

45 7

PWR

675

241

Operability

11.3 Remote operation

Via HART protocol

Figure 11.1 Options for remote operation via HART protocol

1 PLC (programmable logic controller) 2 Transmitter power supply unit, e. g. KFD2-STC-Ex1 (with communication resistor) 3 Connection for optional field communicator 4 Field communicator 5 Computer with operating tool (e. g. PACTware) 6 Modem (USB) 7 Bluetooth field communicator 8 Bluetooth modem with connecting cable 9 Transmitter

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Pulscon LTC51

PROFIBUS DP

PROFIBUS PA

444

–

Operability

Via PROFIBUS PA protocol

Figure 11.2

1 Segment coupler 2 Computer with Profiboard/Proficard and operating tool (e. g. PACTware) 3 PLC (Programmable Logic Controller) 4 Transmitter 5 Additional functions (valves etc.)

Via service interface (CDI)

Figure 11.3

1 Service interface (CDI) of the measuring device (Common Data Interface) 2 Modem 3 Computer with PACTware operating tool

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Certificates and approvals

12 Certificates and approvals

12.1 CE mark

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 Media Authority (ACMA)".

12.3 Ex approval

The devices are certified for use in hazardous areas and the relevant safety instructions are provided in the separate "Safety Instructions" (SI) document. Reference is made to this document on the nameplate.

Note!

The separate documentation "Safety Instructions" (SI) containing all the relevant explosion protection data is available from your Pepperl+Fuchs Sales Center. Correlation of documentations to the device: see chapter 15.2.

12.4 Dual seal according to ANSI/ISA 12.27.01

The devices have been designed according to ANSI/ISA 12.27.01 as dual seal devices, allowing the user to waive the use and save the cost of installing external secondary process seals in the conduit as required by the process sealing sections of ANSI/NFPA 70 (NEC) and CSA 22.1 (CEC). These instruments comply with the North-American installation practice and provide a very safe and cost-saving installation for pressurized applications with hazardous fluids.

Further information can be found in the Safety Instructions (SI) of the relevant devices.

12.5 Functional Safety

Used for level monitoring (MIN, MAX, range) up to SIL3 (homogeneous redundancy), independently assessed by TÜV Rhineland as per IEC 61508. Other information see manual "Safety Integrity Level".

12.6 Overfill prevention

WHG

Note!

Devices with WHG approval are supplied with software version 01.01.18. Any other devices are supplied with software version 01.02.xx.

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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.

12.8 CRN approval

Some device versions have a CRN approval. Devices are CRN approved if the following two conditions are met:

• The device has a CSA approval (Product structure: Feature "Approval")

• The device has a CRN approved process connection according to the following table.

Feature "Process Connection"

A51 1-1/2 in 150 lbs RF, 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) A52 1-1/2 in 300 lbs RF, 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) A61 2 in 150 lbs RF, 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) A62 2 in 300 lbs RF, 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) A81 3 in 150 lbs RF, 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) A82 3 in 300 lbs RF, 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) A91 4 in 150 lbs RF, 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) A92 4 in 300 lbs RF, 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) AA1 6 in 150 lbs RF, 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) AB1 8 in 150 lbs RF, 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) C51 1-1/2 in 150 lbs, Alloy C > 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) C52 1-1/2 in 300 lbs, Alloy C > 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) C61 2 in 150 lbs, Alloy C > 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) C62 2 in 300 lbs, Alloy C > 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) C81 3 in 150 lbs, Alloy C > 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) C82 3 in 300 lbs, Alloy C > 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) G51 Thread ISO228 G1-1/2, 1.4404/316L (CRN) N51 Thread ANSI MNPT1-1/2, 1.4404/316L (CRN)

Table 12.1

Approval

Note!

• Process connections without CRN approval are not included in this table.

• Refer to the product structure to see which process connections are available for a specific device type.

• CRN approved devices are marked with the registration number 0F14480.5 on the nameplate.

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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)

•NAMUR NE 21 Electromagnetic compatibility (EMC) of industrial process and laboratory control

equipment.

•NAMUR NE 43 Standardization of the signal level for the breakdown information of digital transmitters with

analog output signal.

•NAMUR NE 53 Software of field devices and signal-processing devices with digital electronics

• NAMUR NE 107 Status classification as per NE 107

• NAMUR NE 131 Requirements for field devices for standard applications

• IEC 61508 Functional safety of electrical/electronic/programmable electronic safety-related systems

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13 Ordering information

13.1 Design

Figure 13.1 Design of the device

1 Electronics housing 2 Process connection (example flange) 3 Rope probe 4 End-of-probe weight 5 Rod probe 6 Coax probe

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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 1 in mm, rod Ø8 mm, 1.4404/316L

2 in mm, rope Ø4 mm, 1.4401/316, max. 150 mm nozzle height, center rod 3 in inch, rope Ø1/6 in, 1.4401/316, max. 6 in nozzle height, center rod 4 in mm, coax, 1.4404/316L 5 in inch, rod Ø1/3 in, 1.4404/316L 6 in mm, rod Ø12 mm, Alloy C 7 in inch, rod Ø1/2 in, Alloy C 8 in mm, rod Ø12 mm, 1.4404/316L 9 in inch, rod Ø1/2 in, 1.4404/316L A in mm, rod Ø16 mm, 1.4404/316L, 500 mm divisible B in inch, rod Ø0.63 in, 1.4404/316L, 20 in divisible C in mm, rod Ø16 mm, 1.4404/316L, 1000 mm divisible D in inch, rod Ø0.63 in, 1.4404/316L, 40 in divisible E in mm, rope Ø4 mm, 1.4401/316, max. 300 mm nozzle height, center rod F in inch, rope Ø1/6 in, 1.4401/316, max. 12 in nozzle height, center rod G in inch, coax, 1.4404/316L H in mm, coax, Alloy C K in inch, coax, Alloy C X Special version

Process connection A51 1-1/2 in 150 lbs RF, 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) A52 1-1/2 in 300 lbs RF, 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) A61 2 in 150 lbs RF, 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) A62 2 in 300 lbs RF, 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) A81 3 in 150 lbs RF, 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) A82 3 in 300 lbs RF, 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) A91 4 in 150 lbs RF, 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) A92 4 in 300 lbs RF, 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) AA1 6 in 150 lbs RF, 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) AB1 8 in 150 lbs RF, 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) C51 1-1/2 in 150 lbs, Alloy C > 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) C52 1-1/2 in 300 lbs, Alloy C > 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN)

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Process connection C61 2 in 150 lbs, Alloy C > 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN)

C62 2 in 300 lbs, Alloy C > 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) C65 DN40 PN10-40, Alloy C > 1.4404/316L, flange EN 1092-1 C73 DN50 PN10/16, Alloy C > 1.4404/316L, flange EN 1092-1 C75 DN50 PN25/40, Alloy C > 1.4404/316L, flange EN 1092-1 C81 3 in 150 lbs, Alloy C > 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) C82 3 in 300 lbs, Alloy C > 1.4401/316/1.4404/316L, flange ANSI B16.5 (CRN) C93 DN80 PN10/16, Alloy C > 1.4404/316L, flange EN 1092-1 C95 DN100 PN10/16, Alloy C > 1.4404/316L, flange EN 1092-1 CA3 DN80 PN25/40, Alloy C > 1.4404/316L, flange EN 1092-1 CA5 DN100 PN25/40, Alloy C > 1.4404/316L, flange EN 1092-1 D73 DN50 PN10/16 B1, 1.4404/316L, flange EN 1092-1 D75 DN50 PN25/40 B1, 1.4404/316L, flange EN 1092-1 D93 DN80 PN10/16 B1, 1.4404/316L, flange EN 1092-1 DA3 DN80 PN25/40 B1, 1.4404/316L, flange EN 1092-1 DA5 DN100 PN25/40 B1, 1.4404/316L, flange EN 1092-1 DC3 DN150 PN10/16 B1, 1.4404/316L, flange EN 1092-1 DE3 DN200 PN16 B1, 1.4404/316L, flange EN 1092-1 F65 DN40 PN10/40 B1, 1.4404/316L, flange EN 1092-1 G21 Thread ISO228 G3/4, 1.4404/316L G51 Thread ISO228 G1-1/2, 1.4404/316L (CRN) J16 10K 50A RF, 1.4404/316L, flange JIS B2220 J17 10K 80A RF, 1.4404/316L, flange JIS B2220 J18 10K 40A RF, 1.4404/316L, flange JIS B2220 J19 10K 100A RF, 1.4404/316L, flange JIS B2220 N21 Thread ANSI MNPT3/4, 1.4404/316L N51 Thread ANSI MNPT1-1/2, 1.4404/316L (CRN) XXX Special version

Electrical connection A Gland M20, IP66/68, NEMA 4X/6P

B Thread M20, IP66/68, NEMA 4X/6P C Thread G1/2, IP66/68, NEMA 4X/6P D Thread NPT1/2, IP66/68, NEMA 4X/6P I Plug M12, IP66/68, NEMA 4X/6P M Plug 7/8 in, IP66/68, NEMA 4X/6P X Special version

Seal 3 EPDM, -40 ... 120 °C

4 Kalrez, -20 ... 200 °C, saturated steam max. 150 °C

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Seal 5 Viton, -30 ... 150 °C

X Special version

Housing A1 GT19 dual compartment, plastics PBT

A2 GT20 dual compartment, alu coated A3 GT18 dual compartment, 1.4404/316L XX Special version

Electrical output AH 4-wire, 90 ... 253 V AC, 4 ... 20 mA, HART

DH 4-wire, 10.4 ... 48 V DC, 4 ... 20 mA, HART ID * 2-wire, 4 ... 20 mA, HART, switching output IE 2-wire, 4 ... 20 mA, HART, 4 ... 20 mA IH 2-wire, 4 ... 20 mA, HART PA 2-wire, PROFIBUS PA, switching output XX Special version

Display, operation B Without display, via communicator D SD02 4-line, push-buttons and data backup function E * SD03 4-line, illuminated, touch control and data backup function

Approval C1 * CSA C/US IS Cl.I,II,III Div.1 Gr.A-G, NI Cl.1 Div.2, Ex ia

C2 * CSA C/US XP Cl.I,II,III Div.1 Gr.A-G, NI Cl.1 Div.2, Ex d CG CSA C/US General Purpose E1 ATEX II 1G Ex ia IIC T6-T1 Ga E2 ATEX II 1/3G Ex ic [ia] IIC T6-T1 Ga/Gc E3 ATEX II 3G Ex nA IIC T6-T1 Gc E4 ATEX II 3G Ex ic IIC T6-T1 Gc ED ATEX II 1/2G Ex d [ia] IIC T6-T1 Ga/Gb EG * ATEX II 1/2G Ex d [ia] IIC T6-T6 Ga/Gb or 1/2 D Ex ta IIIC Txx°C Da/Db EW ATEX II 1/2G Ex ia IIC T6-T1 Ga/Gb or 1/2 G Ex d [ia] IIC T6-T1 Ga/Gb EX ATEX II 1/2G Ex ia IIC T6-T1 Ga/Gb FI * FM IS Cl.I,II,III Div.1 Gr.A-G, AEx ia, NI Cl.1 Div.2 FN * FM XP Cl.I,II,III Div.1 Gr.A-G, AEx d, NI Cl.1 Div.2 IA IECEx Ex ia T6-T1 Ga IB IECEx Ex ia IIC T6-T1 Ga/Gb IC IECEx Ex d [ia] IIC T6-T1 Ga/Gb ID IECEx Ex ic [ia] IIC T6-T1 Ga/Gc IG IECEx Ex nA IIC T6-T1 Gc

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Approval IH IECEx Ex ic IIC T6-T1 Gc

NA Version for non-hazardous area SX * 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

probe versions.

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Additional options

Note!

Option with * = on request/in preparation Feature with ** = multiple options can be selected

Additional operation language 0 No option

A English B German C French D Spanish E Italian F Dutch G * Portuguese H * Polish I * Russian J * Turkish K * Chinese abbreviations L Japanese M * Korean N * Arabian O * Bahasa P * Thai Q * Vietnamnese R * Czech

Application packages 0 No option

A * HistoROM, extended function, event and data recording, envelope curve

diagnosis

9 Special version

Calibration 0 No option 4 * 5-point linearity protocol 9 Special version

Service ** 0 No option

J Customized parametrization HART K Customized parametrization PA 9 Special version

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Test, certificate ** 0 No option

A Material certificate, wetted metallic parts, EN 10204-3.1 inspection certificate 9 Special version

Additional approval ** 0 No option A * SIL C * WHG overfill prevention 9 Special version

Probe design ** 0 No option

B Sensor remote, 3 m cable, detachable, with mounting bracket 9 Special version

Accessory mounted ** 0 No option 9 Special version

Accessory enclosed ** 0 No option

B Weather protection cover G Mounting kit, insulated, rope 9 Special version

Firmware version 0 No option 5 01.00.zz, HART, DevRev01 7 01.00.zz, PROFIBUS PA, DevRev01

Tagging 0 No option

1 Tagging (TAG), see additional specifications 2 Bus address, see additional specifications

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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 %). In order to define the measuring range, Empty calibration (E) and Full calibration (F) have to be specified

The following restrictions have to be taken into account when defining E and F:

Figure 13.2

Sensor Minimum distance between

Minimum measuring range reference point (R) and 100 % level

General A  250 mm (10 in) B  400 mm (16 in) Rope probe with center rod,

max.300 mm (12 in) nozzle

height

Table 13.1

Product structure: feature "Probe", option E or F

Type of probe Minimum distance from end

Rod

A  350 mm (14 in) B  400 mm (16 in)

Maximum value for "Empty of probe to 0 % level

calibration" C  100 mm (4 in) E  3.9 m (12.8 ft)

Coax C  100 mm (4 in) E  5.9 m (19.4 ft) Rope C  1000 mm (40 in) E  11 m (36 ft)

Table 13.2

Also valid for divisible rod probes.

100

If E and F are not specified, probe dependent default values will be used instead.

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