Endress+Hauser Liquicap M FTI51 Operating Instructions Manual
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Endress+Hauser Liquicap M FTI51 Operating Instructions Manual

Endress+Hauser Liquicap M FTI51 Operating Instructions Manual

Capacitance point level switch for liquids
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BA02031F/00/EN/01.20
71475996
2023-09-25
Valid as of version
V 01.00.zz
Products
Operating Instructions
Liquicap M
FTI51
Capacitance
Point level switch for liquids
Solutions
Services

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Summary of Contents for Endress+Hauser Liquicap M FTI51

  • Page 1 Products Solutions Services BA02031F/00/EN/01.20 71475996 2023-09-25 Valid as of version V 01.00.zz Operating Instructions Liquicap M FTI51 Capacitance Point level switch for liquids...
  • Page 2 Related documents Liquicap M FTI51 Related documents Order code: XXXXX-XXXXXX Ser. no.: XXXXXXXXXXXX Ext. ord. cd.: XXX.XXXX.XX Serial number www.endress.com/deviceviewer Endress+Hauser Operations App A0023555 Endress+Hauser...

  • Page 3: Table Of Contents

    Liquicap M FTI51 Table of contents Table of contents 5.1.3 Connector ..... 25 About this document ....5 5.1.4...
  • Page 4 Seals ....... 74 Endress+Hauser services ....74 Repair .

  • Page 5: About This Document

    Liquicap M FTI51 About this document About this document Document function These Operating Instructions contain all the information required in the various life cycle phases of the device: from product identification, incoming acceptance and storage, to installation, connection, operation and commissioning, through to troubleshooting, maintenance and disposal.

  • Page 6: Symbols For Certain Types Of Information And Graphics

    About this document Liquicap M FTI51 Flat blade screwdriver Torx screwdriver Allen key Open-ended wrench 1.2.4 Symbols for certain types of information and graphics  Permitted Procedures, processes or actions that are permitted  Preferred Procedures, processes or actions that are preferred  Forbidden...

  • Page 7: Documentation

    Liquicap M FTI51 About this document  Temperature resistance of the connection cables Specifies the minimum value of the temperature resistance of the connection cables LED not lit LED lit LED flashes Documentation All available documents can be downloaded using: • the serial number of the device (see cover page for description) or •...

  • Page 8: Basic Safety Instructions

    Have read and understood the instructions in the manual and supplementary documentation. ‣ They follow instructions and comply with conditions. Intended use The Liquicap M FTI51 is a compact point level switches for the capacitance point level detection of liquids. Workplace safety For work on and with the device: ‣...

  • Page 9: Incoming Acceptance And Product

    Liquicap M FTI51 Incoming acceptance and product identification Incoming acceptance and product identification Incoming acceptance Check whether the packaging or content is damaged. Check that the goods delivered are complete and compare the scope of delivery with the information in your order.

  • Page 10: Mounting

    Mounting requirements 4.1.1 Mounting the sensor The Liquicap M FTI51 can be installed from the top or the bottom or from the side. Make sure that: • the probe is not installed in the area of the filling curtain • the probe is not in contact with the container wall •...
  • Page 11 Liquicap M FTI51 Mounting A0042378  2 Mounting the sensor in nonconductive tanks. Unit of measurement mm (in) Endress+Hauser...

  • Page 12: Support With Marine Approval (Gl)

    Mounting Liquicap M FTI51 4.1.2 Support with marine approval (GL) Conductive or non-conductive support can be provided for fully insulated rod probes. Partially insulated rod probes may only be supported with insulation at the uninsulated end of the probe. Rod probes with a diameter of 10 mm (0.39 in) and 16 mm (0.63 in), and a length ≥...

  • Page 13: Installation Examples

    Liquicap M FTI51 Mounting ≥ 500 (19.7) ∆s A0042379  4 Measuring condition. Unit of measurement mm (in) Measuring range Inactive length ΔS Two-points control range The 0 % and 100 % calibration can be inverted. Installation examples 4.3.1 Rod probes The probe can be installed in: •...
  • Page 14 Mounting Liquicap M FTI51 A0042381  5 A probe with the conductive tanks A0042382  6 A probe with ground tube for the nonconductive tanks A0042383  7 A probe with inactive length for the insulated tanks Endress+Hauser...
  • Page 15 Liquicap M FTI51 Mounting A0042384  8 A probe with ground tube and inactive length for mounting nozzles A0042385  9 A probe fully insulated with clad flange for aggressive media Endress+Hauser...

  • Page 16: Probe With Separate Housing

    Mounting Liquicap M FTI51 Probe with separate housing L4 ≤ 6 m (20 ) A0042386  10 Connection of the probe and separate housing. Unit of measurement mm (in) Explosive zone 1 Explosive zone 0 Rod length: max. 4 m (13 ft) Cable length •...

  • Page 17: Wall Bracket

    Liquicap M FTI51 Mounting r ≥ 100 (3.94) 61 (2.4) 75 (2.95) r ≥ 100 (3.94) A0040471  11 Housing side: wall mounting, pipe mounting, and sensor side. Unit of measurement mm (in) Values of parameters • Polyester housing (F16) •...

  • Page 18: Wall Mounting

    Mounting Liquicap M FTI51 86 (3.39) 3 (0.12) 70 (2.76) A0033881  12 Wall bracket overview. Unit of measurement mm (in) 4.4.3 Wall mounting 1 → 2 → A0042318 A0042319 A0042320 ‣ ‣ ‣ Screw together the wall Mark the distance between the Screw the separate housing on bracket on the tube.

  • Page 19: Shortening The Connecting Cable

    Liquicap M FTI51 Mounting 4.4.5 Shortening the connecting cable NOTICE Risk of damage to connections and cable. ‣ Make sure that neither the connecting cable nor the probe is turning with the pressing screw! • The maximum total length of the rod L1 and the cable L4 is 10 m (33 ft).
  • Page 20 Mounting Liquicap M FTI51 7 → 8 → A0042117 A0042546 A0042119 ‣ ‣ ‣ Remove the blade plug from Loosen the screw to disconnect Loosen the nut (M4) of the the socket. the yellow-green cable. blade plug. gn/ye A0042544  13...

  • Page 21: Installation Instructions

    Liquicap M FTI51 Mounting 4 → 5 → 6 → A0042114 A0042115 A0042548 ‣ ‣ ‣ Pull out the cable with the Remove the seal and loosen Remove the snap ring with a cone. the adapter disk with the snap ring pliers and cut the open-end wrench AF34.

  • Page 22: Probe Installation

    Mounting Liquicap M FTI51 NOTICE Do not screw the probe using the probe housing! ‣ Use an open-end wrench to screw the probe. A0040476  15 Proper probe installation 4.5.1 Probe installation Probe with thread Cylindrical threads G½, G¾, G1, G1½...

  • Page 23: Aligning The Housing

    Liquicap M FTI51 Mounting A0040477  16 Spring washer mounting Spring washer 4.5.2 Aligning the housing The housing can be rotated 270 ° to align the cable entry. To prevent moisture penetration, route the connecting cable downwards in front of the cable gland and secure it with a cable tie.
  • Page 24 Mounting Liquicap M FTI51  Make sure that the device meets the specifications at the measuring point with regard to process temperature and pressure, ambient temperature, measuring range.  Make sure that the process connection been tightened with the tightening torque? ...

  • Page 25: Electrical Connection

    Liquicap M FTI51 Electrical connection Electrical connection Before connecting the power supply, note the following: • the supply voltage must match the data specified on the nameplate • switch off the supply voltage before connecting the device • connect the potential equalization to the ground terminal on the sensor When using the probe in hazardous areas, the relevant national standards and the information in the safety instructions (XA) must be observed.

  • Page 26: Cable Entry

    Electrical connection Liquicap M FTI51 PIN assignment for M12 connector A0011175  18 M12 connector with 2-wire-electronic insert FEI55, FEI57, FEI58, FEI57C Positive potential Not used Negative potential Ground A0011175  19 M12 connector with 3-wire-electronic insert FEI52, FEI53 Positive potential...

  • Page 27: Connecting The Measuring Device

    Liquicap M FTI51 Electrical connection Connecting the electronic insert to the power supply: 1 → A0047667 A0047668 ‣ ‣ Unscrew and remove the Release the cable gland. ‣ housing cover. Insert the cable. Connecting the electronic insert to the power supply mounted in the housing T13: 1 →...

  • Page 28: Dc Pnp Electronic Insert Fei52

    Electrical connection Liquicap M FTI51 Signal on alarm The output signal on power failure or in the event of damage to the sensor: < 3.8 mA Connectable load • For relays with a minimum holding power or rated power: • > 2.5 VA at 253 V (10 mA) •...

  • Page 29: 3-Wire Electronic Insert Fei53

    4. Switch on the supply voltage. 5.3.3 3-wire electronic insert FEI53 The 3-wire DC connection is used in conjunction with the Nivotester switching device FTC325 3–WIRE from Endress+Hauser. The switching device' s communication signal operates at 3 to 12 V Endress+Hauser...

  • Page 30: Ac And Dc With Relay Output Electronic Insert Fei54

    Electrical connection Liquicap M FTI51 The failsafe mode (MIN) / (MAX) and the point level adjustment are configured on the Nivotester. Power supply • Supply voltage: 14.5 V • Current consumption: < 15 mA • Power consumption: maximum 230 mW •...
  • Page 31 Liquicap M FTI51 Electrical connection Power supply • Supply voltage: • 19 to 253 V , 50 to 60 Hz • 19 to 55 V • Power consumption: 1.6 W • Reverse polarity protection: yes • Separation voltage: 3.7 kV •...

  • Page 32: Sil2 / Sil3 Electronic Insert Fei55

    Electrical connection Liquicap M FTI51 4. Switch on the supply voltage. 5.3.5 SIL2 / SIL3 electronic insert FEI55 The two-wire DC connection should, if possible, be connected as follows: • to programmable logic controllers (PLC) • to AI modules 4 to 20 mA in accordance with EN 61131-2 The point level signal is sent via an output signal jump from 8 to 16 mA.

  • Page 33: Pfm Electronic Insert Fei57S

    Liquicap M FTI51 Electrical connection Functional safety (SIL) The electronic insert FEI55 meets the requirements of SIL2 or SIL3 in accordance with IEC 61508, IEC 61511-1 and can be used in the safety systems with the corresponding requirements. An exact description of the requirements in terms of functional safety can be found in document FY01072F.

  • Page 34: Namur Electronic Insert Fei58

    NAMUR electronic insert FEI58 The two-wire connection for a separate switching unit in accordance with NAMUR specifications (IEC 60947-5-6), e.g. Nivotester FTL325N from Endress+Hauser. Change in the output signal from high to low current in event of point level detection.

  • Page 35: Post-Connection Check

    Liquicap M FTI51 Electrical connection Ex ia — A0042393  21 Terminals must be connected to the isolating amplifier (NAMUR) IEC 60947-5-6 1. Connect the FEI51 according to the schema. 2. Tighten the cable gland. 3. Switch on the supply voltage.

  • Page 36: Operation Options

    Operation options Liquicap M FTI51 Operation options Human interface and display elements for FEI51, FEI52, FEI54, FEI55 3 4 5 6 FEI5x A0042394  22 FEI51, FEI52, FEI54, FEI55 human interface  Green LED - operational status Green LED Red LED - fault...

  • Page 37: Human Interface And Display Elements For Fei53, Fei57S

    Liquicap M FTI51 Operation options 9. Upload sensor DAT (EEPROM)  press  for download press  for upload Human interface and display elements for FEI53, FEI57S The electronic inserts FEI53 and FEI57S are used in conjunction with Nivotester switching devices.

  • Page 38: Human Interface And Display Elements For Fei58

    Operation options Liquicap M FTI51 0... A0042403  27 Measuring range: the measuring range is between 5 to 1 600 pF. Span: the span is between 5 to 1 600 pF Human interface and display elements for FEI58 FEI5x NAMUR...
  • Page 39 Liquicap M FTI51 Operation options A0042406  31 10 pF A0042407  32 2 pF Switching delay: A0042408  33 A0042409  34 Fail-safe mode: A0042410  35 The output switches safety-oriented when the probe is uncovered. It can be used in cases such as dry run protection and pump protection.

  • Page 40: Commissioning

    Commissioning Liquicap M FTI51 Commissioning Installation and function check Make sure that the post-installation check and final check have been completed before you start your measuring point: • see the chapter "Post-installation check" →  23 • see the chapter "Post-connection check" →  35...

  • Page 41: Carrying Out Empty Calibration

    Liquicap M FTI51 Commissioning To set the range to 0 to 1 600 pF: 1 → 2 → 3 → A0042452 A0042453 A0043663 ‣ Set the function switch to position 4. 4 → 5 → 6 → > 2 s...

  • Page 42: Carrying Out Full Calibration

    Commissioning Liquicap M FTI51 To carry out an empty calibration, set the measuring range first →  40. 1 → 2 → 3 → > 2 s A0042458 A0042821 A0042459 ‣ ‣ Press the  key > 2 s. Release the  key when the green LED 1 starts to flash.

  • Page 43: Carrying Out Empty And Full Calibration

    Liquicap M FTI51 Commissioning 4 → 5 → 6 → > 2 s A0042462 A0042463 A0042464 ‣ ‣ ‣ The process of saving the full Press the  key > 2 s. Release the  key when the calibration is complete when green LED 5 starts to flash.
  • Page 44 Commissioning Liquicap M FTI51 4 → 5 → > 2 s A0042822 A0042459 A0043260 ‣ ‣ ‣ The process of saving the Press the  key > 2 s. Release the  key when the empty calibration is finished green LED 1 starts to flash.

  • Page 45: Reset: Calibration And Switch-Point Adjustment

    Liquicap M FTI51 Commissioning 7.2.5 Reset: Calibration and switch-point adjustment Resetting the calibration or switch-point shift (all the other settings remain unchanged) The switch-point adjustment is reset to the factory setting of 2 pF. 1 → 2 → 3 →...

  • Page 46: Setting The Switch-Point Adjustment

    Commissioning Liquicap M FTI51 7.2.6 Setting the switch-point adjustment ∆c If only one calibration (empty or full) was carried out, and if buildup forms on the rod probe while the probe is in operation, the device can not longer respond to changes in level.

  • Page 47: Configuring Two-Point Control And Buildup Mode

    Liquicap M FTI51 Commissioning 7 → 8 → 9 → ∆c ∆c = 8 pF = 4 pF > 2 s A0042472 A0042473 A0043643 ‣ Press the  key > 2 s to decrease the value. 10 → A0042474 A0043652 ‣...
  • Page 48 Commissioning Liquicap M FTI51 Configuring two-point control 1 → 2 → 3 → A0042483 A0043269 A0043654 ‣ Set the function switch to position 4. 4 → > 2 s A0042475 A0042476 ‣ ‣ The buildup two-point control Press the  key > 2 s.

  • Page 49: Setting The Switching Delay

    Liquicap M FTI51 Commissioning 7.2.8 Setting the switching delay NOTICE The tank can overflow if the switching delay is set for too long. ‣ The switching delay causes the device to signal the point level after a delay. This is highly useful in tanks with turbulent medium surfaces caused, for example, by the filling process or by collapsing mounds.

  • Page 50: Activating The Self-Test

    Commissioning Liquicap M FTI51 A0042748 0.3 s 1.5 s 10 s A0042749  38 The LED sequence regarding the switching delay value. 7.2.9 Activating the self-test NOTICE Accidental process run! This could result, for example, in overflowing the tank. ‣...
  • Page 51 Liquicap M FTI51 Commissioning 16 mA ± . 0 8 mA 8 mA ± . 0 5 mA A0042398  40 Start point uncovered MIN safety MAX safety Proof test START point Proof test END point Activating the self-test 1 →...

  • Page 52: Setting The Min, Max And Sil Fail

    Commissioning Liquicap M FTI51 7.2.10 Setting the MIN, MAX and SIL fail-safe mode The SIL mode function is only available in conjunction with electronic insert FEI55. By selecting the fail-safe mode correctly, you ensure that the output always operates safely with the quiescent current.
  • Page 53 Liquicap M FTI51 Commissioning To set the MAX fail-safe mode: 1 → 2 → 3 → A0042483 A0042492 A0042494 ‣ Set the function switch to position 7. 4 → 5 → 6 → > 2 s A0042495 A0042496 A0042465 ‣...
  • Page 54 Commissioning Liquicap M FTI51 Setting the MAX fail-safe mode and lock the SIL mode: The factory setting is set to MIN-SIL mode. 1 → 2 → 3 → A0042483 A0042492 A0042496 ‣ Set the function switch to position 7. 4 →...
  • Page 55 Liquicap M FTI51 Commissioning 4 → 5 → 6 → > 2 s > 4 s A0042493 A0043657 A0042497 ‣ ‣ ‣ The MIN fail-save mode is set. Press the  key > 2 s to set Press the  and  keys > 4 s.

  • Page 56: Restoring Factory Settings

    Commissioning Liquicap M FTI51 To unlock the SIL mode and set the MIN fail-save mode: 1 → 2 → 3 → > 4 s A0042483 A0042484 A0042485 ‣ ‣ Set the function switch to Press the  and  keys > 4 s.

  • Page 57: Upload And Download Sensor Dat

    Liquicap M FTI51 Commissioning 4 → A0043661 A0042513 ‣ The factory settings have been successfully restored. 7.2.12 Upload and download sensor DAT (EEPROM) The customer-specific settings of the electronic insert (e.g. empty and full calibration, switch-point adjustment) are stored automatically in the sensor DAT (EEPROM) and the electronic insert.
  • Page 58 Commissioning Liquicap M FTI51 4 → 5 → A0042509 A0042503 A0042483 ‣ Set the function switch to position 1. Uploading the data 1 → 2 → 3 → > 2 s A0042483 A0042507 A0042510 ‣ ‣ Set the function switch to Press the ...

  • Page 59: Output Signals

    Liquicap M FTI51 Commissioning 7.2.13 Output signals Output signal FEI51 <3.8 mA <3.8 mA I /<3,8 mA <3.8 mA A0042586 Output signal FEI52 I / I A0042587 Endress+Hauser...

  • Page 60: Commissioning With Electronic Inserts Fei53

    Commissioning Liquicap M FTI51 Output signal FEI54 A0042528 Output signal FEI55 ~16 mA ~8 mA ~16 mA ~8 mA ~8/16 mA < 3.6 mA A0042529 Commissioning with electronic inserts FEI53 or FEI57S This chapter describes the process for commissioning the device with electronic insert versions FEI53 and FEI57S.

  • Page 61: Setting The Alarm Response If The Measuring Range Is Exceeded

    Liquicap M FTI51 Commissioning 0...1600pF Standard 0..500pF FEI5x A0042395  41 FEI53 and FEI57S human interface Green LED - operational status Standard or alarm DIP switch Measuring range DIP switch Red LED - fault 7.3.1 Setting the alarm response if the measuring range is exceeded...

  • Page 62: Output Signals

    Commissioning Liquicap M FTI51 0... A0042403  45 Measuring range: the measuring range is between 5 to 1 600 pF. Span: the span is between 5 to 1 600 pF The choice of measuring range (0 to 500 pF and 0 to 1 600 pF) depends on the function of the probe.

  • Page 63: Function Keys A, B, C

    Liquicap M FTI51 Commissioning FEI5x NAMUR IEC 60947-5-6 8 9 10 A0042396  46 FEI58 human interface Key A (Function) Green LED - operational status Red LED - fault Yellow LED - switching state Key B (Function) Key C (Test)
  • Page 64 Commissioning Liquicap M FTI51 A0042404  48 The probe is covered during calibration Make sure that the probe is not covered with product. Carrying out empty calibration 1 → 2 → 3 → > 2 s A0042514 A0042515 A0042516 ‣...

  • Page 65: Setting The Switch-Point Adjustment

    Liquicap M FTI51 Commissioning Carrying out full calibration 1 → 2 → 3 → > 2 s A0042514 A0042519 A0042520 ‣ ‣ Make sure that the calibration Press the A and B keys > 2 s. DIP switch is in position "Covered".

  • Page 66: Setting The Switching Delay

    Commissioning Liquicap M FTI51 7.4.4 Setting the switching delay NOTICE The tank can overflow if the switching delay is set for too long. ‣ The switching delay causes the device to signal the point level after a delay. This is useful in tanks with turbulent medium surfaces caused by the filling process or by collapsing mounds.

  • Page 67: Display Calibration Situation

    Liquicap M FTI51 Commissioning 7.4.6 Display calibration situation Use this function to see what calibrations have been performed on the device. The calibration situation is indicated by the three LEDs. Displaying calibration situation > 2 s A0042550 ‣ Press the  key > 2 s A0042551 ...

  • Page 68: Output Signals

    Commissioning Liquicap M FTI51 To perform the function test: 1 → 2 → A0042523 A0042524 A0042525 ‣ ‣ Press the C key for the entire The safety functions duration of the test. configured for the supply unit are activated. ‣...

  • Page 69: Diagnostics And Troubleshooting

    Liquicap M FTI51 Diagnostics and troubleshooting Diagnostics and troubleshooting In the event of faults during commissioning or operation of the device, you can carry out fault diagnostics on the electronic insert. This function is supported by the electronic inserts FEI51, FEI52, FEI54, FEI55.
  • Page 70 Diagnostics and troubleshooting Liquicap M FTI51 A0042558 Recalibrate The calibration point is too close to the measuring range limit - priority 4 A0042559 Reduce the switch-point or select a new installation location No calibration has yet been carried out - priority 5...

  • Page 71: Fault Diagnostics Fei53 And Fei57S

    Liquicap M FTI51 Diagnostics and troubleshooting Operate the device in the specified temperature range only Fault diagnostics FEI53 and FEI57S The device does not switch Check the connection and the supply voltage Alarm LED flashes The ambient temperature of the electronics is outside the permitted range or the...

  • Page 72: Firmware History

    Diagnostics and troubleshooting Liquicap M FTI51 A0042572 Perform uncovered calibration with the probe uncovered, and covered calibration with the probe covered No calibration has yet been carried out - priority 4 A0042573 Carry out empty and full calibration The change in capacitance from uncovered probe to covered probe is too small -...
  • Page 73 Liquicap M FTI51 Diagnostics and troubleshooting FEI54 • Release date: 07/2006 • Software version: V 01.00.zz • Software change: original software FEI55 • Release date: 11/2008 • Software version: V 02.00.zz • Software change: extended to include SIL functionality FEI57S •...

  • Page 74: Maintenance

    The intervals between seal replacement depend on the frequency of the cleaning cycles and on the fluid and cleaning temperature. Endress+Hauser services Endress+Hauser offers a wide range of services. Your Endress+Hauser Sales Center can provide detailed information on the services. Endress+Hauser...

  • Page 75: Repair

    • The measuring devices have a modular design • Spare parts are grouped into logical kits with the associated Installation Instructions • Repairs are carried out by Endress+Hauser Service or by appropriately trained customers • Certified devices can only be converted to other certified devices by Endress+Hauser Service or at the factory 10.2...

  • Page 76: Replacement

    Repair Liquicap M FTI51 • carry out the individual test for the device • change the device only with a device certificated by Endress+Hauser • report every change and repair of the device 10.4 Replacement After replacing a probe or the electronic insert, the calibration values must be transferred to the replacement device.

  • Page 77: Accessories

    • For signal lines in field housing: BA00304K. • For signal or supply lines in field housing: BA00305K. 11.3 Weld-in adapter All available weld-in adapters are described in the document TI00426F. The documentation is available in the Download section on Endress+Hauser web site: www.endress.com Endress+Hauser...

  • Page 78: Technical Data

    Technical data Liquicap M FTI51 Technical data 12.1 Capacitance values of the probe Basic capacitance: approximately 18 pF. 12.1.1 Additional capacitance Mount the probe at a minimum distance of 50 mm (1.97 in) from a conductive container wall. Probe rod additional capacitance: approximately 1.3 pF / 100 mm (3.94 in) in the air.

  • Page 79: Output

    Liquicap M FTI51 Technical data Δ C C ·( - 1) ε A0040204 minimum probe length ΔC 5 pF probe capacitance in air ε dielectric constant, e.g. oil = 2.0 To check the probe capacitance in the air, see the chapter "Additional capacitance"...

  • Page 80: Performance Characteristics

    Technical data Liquicap M FTI51 12.4 Performance characteristics According to DIN 61298-2 • Uncertainty: maximum ±0.3 % • Non-repeatability: maximum ±0.1 % 12.4.1 Ambient temperature effect Electronic insert < 0.06 % per 10 K related to the full-scale value Separate housing capacitance change of connecting cable per meter 0.15 pF per 10 K...

  • Page 81: Electromagnetic Compatibility

    Liquicap M FTI51 Technical data Polyester housing F16 Protection degree: • IP66 • IP67 • Type4X Stainless steel housing F15 Protection degree: • IP66 • IP67 • Type4X Aluminum housing F17 Protection degree: • IP66 • IP67 • Type4X Aluminum housing F13 with gas-tight process seal Protection degree: •...

  • Page 82: Operating Conditions: Process

    Technical data Liquicap M FTI51 12.6 Operating conditions: Process 12.6.1 Process temperature range The following diagrams apply for: • insulation • PTFE • PFA • FEP • standard applications outside hazardous areas The temperature is restricted to T –40 °C (–40 °F) when the polyester housing F16 is used or if additional option B is selected.

  • Page 83: Process Pressure Limits

    Liquicap M FTI51 Technical data Probe with separate housing [°F] °C +248 +120 +212 +100 –58 –50 °C –80 +170 +200 [°F] –112 +338 +392 A0043639  63 Process pressure range diagram: probe with separate housing Ambient temperature Process temperature The permitted ambient temperature at the separate housing is the same as indicated for the compact housing.

  • Page 84: Pressure And Temperature Derating

    Technical data Liquicap M FTI51 Probe ⌀22 mm (0.87 in) including insulation –1 to 50 bar (–14.5 to 725 psi) Refer to the following standards for the pressure values permitted at higher temperatures: • EN 1092-1: 2005 Table, Appendix G2 With regard to its resistance and temperature property, the material 1.4435 is identical...
  • Page 85 Liquicap M FTI51 Technical data [psi] [bar] +1450 +100 +913.5 +870 +290 –14.5 –1 °C –80 +200 [°F] –112 +104 +176 +392 A0043641  65 Process presurre and temperature derating diagram Process pressure Process temperature Process pressure for probes with an inactive length With a fully insulated inactive length (22 mm (0.87 in)) rod...

  • Page 86: Index

    Index Liquicap M FTI51 Index Input ........78 Installation and function check .
  • Page 87 Liquicap M FTI51 Index Sealing the probe housing ..... 23 Seals ........74 Setting the measuring range .
  • Page 88 *71475996* 71475996 www.addresses.endress.com...

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