F3237
F3237
F3237
F3237
F3237
F3237
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F3237

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HIMA F3237 is an eight-channel safety-related input module that monitors NAMUR proximity switches and resistor-wired contacts for signal state, line break and short circuit.
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Technical specifications for F3237

  • Manufacturer:
    HIMA
  • Part Number:
    F3237
  • Product Family:
    HIMA HIQuad® X
  • Product Type:
    Safety-Related 8-Channel Proximity-Switch Input Module with Line Monitoring
  • Stock:
    1
  • Safety requirement class:
    AK 1–6
  • Switching time:
    Approximately 10 ms
  • 0-signal operating current:
    0.35–1.2 mA
  • 1-signal operating current:
    2.1–6.0 mA
  • Wire-break threshold:
    0.28 mA or less
  • Short-circuit threshold:
    6.5 mA or more
  • Sensor supply:
    8.2 V
  • Maximum line impedance:
    50 ohms
  • Maximum line length:
    1000 m with 0.5 mm² conductor
  • Channel shunts:
    681 ohms, 1%, 0.25 W
  • Rack space:
    4 TE
  • Module loading:
    90 mA at 5 V DC; 170 mA at 24 V DC
  • Front cable plug:
    Z 7108 / 3237 / series
  • Weight:
    0.331 lbs (0.15 kg)
  • Estimated shipping dimensions:
    2x19x12.8cm
  • Tariff Code:
    85389000008538900000
  • Country of origin:
    Germany
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Input States Line Monitoring Self-Test Front Wiring

Features:

  • Connects eight NAMUR proximity-switch or resistor-wired contact circuits to a HIQuad safety controller.
  • Separates process states from wire-break and short-circuit current conditions.
  • Runs online checks of switching paths, crosstalk, input filters and module operation.
HIMA F3237 assigns one supervised current-measurement path to each of its eight field channels.

Its 8.2 V sensor supply and shunt network establish the current windows used for signal and fault evaluation.

The front cable plug carries channel conductors and shared supply connections between field wiring and the rack module.

The HIMA F3237 Safety-Related 8-Channel Input Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
HIMA F3237 Safety Input Module Manuals,Datasheets,LinkImportant Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

Supervised Sensor-Current Windows

  • Signal Windows: The module interprets 0 and 1 states from separate sensor-current windows.
  • Field Circuit: Each field circuit uses the module supply and its assigned resistor network.
  • Channel Evaluation: The eight channels retain independent state evaluation before their data reaches the rack bus.

Open- and Short-Circuit Detection

  • Wire Break: Current below the wire-break threshold identifies an open sensor circuit.
  • Short Circuit: Current above the short-circuit threshold identifies an excessive-current fault.
  • Normal Range: Normal switching remains between the supervised fault limits.

Online Channel Test Sequence

  • Switching Test: Online testing checks that each input can switch on and off.
  • Crosstalk Test: A walking-zero pattern tests crosstalk among the input circuits.
  • Module Checks: Filter and module-function checks run alongside field-line supervision.

Sensor Supply and Cable Layout

  • Front Plug: The Z 7108 front cable plug assigns two conductors to every input channel.
  • Supply Distribution: Shared L+ and L- connections distribute the supervised field supply.
  • Cable Boundary: Cable resistance and conductor size determine whether the 1000 m line limit can be used.
Description
HIMA F3237 is an eight-channel safety-related input module for the HIQuad I/O structure. It connects NAMUR proximity switches or resistor-wired contacts to the safety controller while supervising each field line for both interruption and short circuit.

The eight input paths of HIMA F3237 supply the connected sensor circuits from the module’s 8.2 V source. Input current is then evaluated against separate ranges for 0 state, 1 state, wire break and short circuit, allowing signal status and wiring faults to be distinguished on the same channel.

During operation, HIMA F3237 automatically tests input switching, cross-channel crosstalk, filter function and module operation. The channel conductors terminate through the Z 7108 front cable plug, while the module receives 5 V and 24 V operating power from the rack.

For long sensor runs, HIMA F3237 defines both conductor impedance and cable-length limits. Its resistor network completes the supervised input circuit so a broken conductor or an excessive current condition can be reported separately from a normal process transition.
Alternative Names
F3237 F 3237 HIMA F3237 HIMA F 3237 HIQuad F3237 HIQuad F 3237 F3237 Safety Input Module HIMA F3237 8-Channel Input Module
Technical notes
HIMA F3237 evaluates eight supervised NAMUR or resistor-wired input circuits and separates normal states from wire-break and short-circuit currents.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Which sensors can be connected to HIMA F3237?
HIMA F3237 accepts safety-related proximity switches, DIN 19234 NAMUR devices and resistor-wired contacts within its supervised current ranges.
How does HIMA F3237 distinguish a wire break from a normal 0 signal?
HIMA F3237 treats current at or below 0.28 mA as a wire break, while a normal 0 state lies between 0.35 and 1.2 mA.
What identifies a short circuit on HIMA F3237?
Input current at or above 6.5 mA crosses the short-circuit threshold of HIMA F3237 instead of being accepted as a normal 1 state.
Why are shunt resistors part of an HIMA F3237 input circuit?
The documented resistor network of HIMA F3237 establishes supervised current paths so contact state and wiring faults can be evaluated separately.
What does the online test cover in HIMA F3237?
HIMA F3237 checks switching capability, channel crosstalk, input filters and module function while the safety input module is operating.
Which wiring limits apply to HIMA F3237 field circuits?
HIMA F3237 permits up to 50 ohms of line impedance and documents a 1000 m limit when 0.5 mm² conductors are used.

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