Process Control Instruments, Field Devices and Industrial Automation
ENDRESS+HAUSER FTL825-AA3A4 (1)
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EH Nivotester FTL825 Vibronic Point level switching unit for Liquiphant FTL80, FTL81 and FTL85. DIN-Rail. FailSafe overfill prevention. 2 SPST safety contact point level, 1 SPST signal contact and 1 SPDT fault contact. SIL3 safety approval. ATEX, FM and CSA approvals.

Part# with Options:        FTL825-AA3A4
Price with Options:        Please Email us your request for quote   

Options:    

Approval
(1) Approval for EH FTL825
Power Supply
(2) Power Supply for EH FTL825 & FTL325P

  Availability 8 Days  ]

Applications
  • Fail-safe point level detection in liquids
  • For point level switches to zone 0
  • Use in safety systems requiring functional safety to
    SIL3 in accordance with IEC 61508 Ed.2.0 /
    IEC 61511-1 / ISA 84-1
  • Safety-critical systems up to SIL3 in the chemicals, petrochemicals and oil & gas industries where
    • redundant or diverse systems are either not recommended or not possible
    • the longest possible test cycles are desirable
    • proof tests are either not possible or only with great difficulty and expense
Your Benefits
  • SIL3 functional safety due to:
    • internal two-channel design and permanent self-monitoring
    • line monitoring up to the sensor
    • permanent monitoring of the Liquiphant FailSafe point level switch
  • Permanent, visualized LIVE signal
  • Advanced diagnostic function and fault display
  • Verification of the entire measuring system, including downstream control and signal devices, by means of proof test button or remote control
  • Integrated locking function (self-holding)
  • Clear identification ensures there is no risk of confusion (LIVE signal)
  • 4 switching outputs (can be analyzed separately):
    • 2 as level safety contacts based on the quiescent current principle for a redundant output signal
    • 1 x signaling contact (e.g. lamp)
    • 1 x fault-signaling contact as changeover contact
  • Proof test: proof testing interval up to 12 years
Signal transmission

The Nivotester supplies the Liquiphant FailSafe FTL8x point level switch with direct voltage via a two-wire cable. At the same time, it analyzes the current values (4-20 mA discrete) of the Liquiphant and returns a switching signal. The signal inputs of the Nivotester FTL825 are galvanically isolated from the mains and the output and can be ordered as intrinsically safe inputs.

Signal analysis

The Nivotester FailSafe FTL825:

  • Evaluates the current of the point level switch and switches the safety contacts for the level alarm accordingly
  • Switches a signaling contact in addition to the safety contacts
  • Switches a separate fault-signaling contact in the event of a device malfunction
  • Evaluates a dynamic signal (LIVE signal) and indicates the status of this signal using an LED
  • Signals the switching state of the point level switch on the front panel by means of a yellow LED
Operating mode

Minimum/maximum detection (MIN/MAX) can be selected by connection coding on the electronic insert and Nivotester.

MAX = maximum detection:
The output of the Nivotester switches in a safety-oriented manner when the tuning fork is covered (demand mode). Used for overfill protection for example.

MIN = minimum detection:
The output of the Nivotester switches in a safety-oriented manner when the tuning fork is exposed (demand mode). Used for dry running protection and pump protection for example.

Measuring Principle Vibration Liquids
Characteristic / Application FailSafe level transmitter point level. Top hat rail mounting
Connection to FTL80/81/85
Permanent self-monitoring,LIVE-Signal.
Specialities SIL 3 according to IEC61508.
Supply / Communication 85 - 253 VAC/DC
20 - 30 VAC/20-60VDC
Ambient temperature 20 to +60 C
(4 to +140 F)
Communication 2x SPST safety contact point level
1x SPST signal contact
1X SPDT fault contact
Certificates / Approvals ATEX, FM, CSA, CSA C/US, IEC Ex, NEPSI
Safety approvals Overfill prevention WHG
Leakage Detection
Marine approval GL/ ABS/ LR/ BV/ DNV

  • VIBRATION SWITCHES > FM-CSA
    FTL80-AASAABA1AAJVBJ EH Liquiphant FTL80 Vibronic Compact Point level switch for liquids in hazardous areas. FailSafe overfill prevention. G/R/MNPT 3/4 or G/R/MNPT 1 Process Connection. FEL85 electronics; 2 wire (4 to 20mA) output. LED Display. SIL3 safety approval. FM and CS ..

  • VIBRATION SWITCHES > FM-CSA
    FTL81-AASAABA1ABJVBJ EH Liquiphant FTL81 Vibronic Point level switch with extension tube for liquids in hazardous areas. FailSafe overfill prevention. G/R/MNPT 3/4 or G/R/MNPT 1 Process Connection. SIL3 safety approval. FM and CSA approvals. ..

  • VIBRATION SWITCHES > FM-CSA
    FTL85-AASAABN1NBNEZN EH Liquiphant FTL85 Vibronic Coated Point level switch for liquids in hazardous areas. FailSafe overfill prevention. DN25 to DN100 Process Connection. SIL3 safety approval. FM and CSA approvals. ..


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