An eight-channel safety-related input module for proximity-switch or resistor-wired sensor circuits.

What are the 0-signal and 1-signal current bands?

The HIMA sheet gives 0.35–1.2 mA for 0 and 2.1–6.0 mA for 1.

When does it detect a wire break?

The documented wire-break threshold is at or below 0.28 mA.

When does it detect a short circuit?

The documented short-circuit threshold is at or above 6.5 mA.

Which front-plug marking must be checked?

Verify the Z 7108 / 3237 / C.. front-plug variant against the installed unit.

What sensor supply voltage is specified?

The HIMA sheet specifies 8.2 V for the sensor supply.

What line length is specified?

The sheet lists up to 1000 m with a 0.5 mm² conductor, subject to the stated line impedance.

Are the LED functions tested automatically?

No. The original sheet says the LED functions are not automatically tested.

F3237

Name: F3237
SKU: F3237

8-Channel Safety-Related Proximity-Switch Input Module

HIMA F3237 safety-related input module, angled view of component side and front connector

HIMA F3237 safety-related input module, angled view of solder side and edge connector

HIMA F3237 safety-related input module, close-up of F 3237 front tab and connector pins

Product image is representative; revision or series may vary. Contact us to request a specific version.

Product Describe：

HIMA F3237 is an eight-channel safety-related digital input module for H41q/H51q systems. It accepts proximity-switch or contact-generator signals and supports line-short and line-break monitoring.

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Technical specifications for F3237

Product Category:

PLC Systems
Spare Part Number:

F3237
Estimated shipping dimensions:

2x19x12.8cm
Weight:

0.14 kg
Tariff Code:

8537101190
Counliy of origin:

USA
Input channels:

8
0-signal current:

0.35–1.2 mA
1-signal current:

2.1–6.0 mA
Wire-break threshold:

≤0.28 mA
Short-circuit threshold:

≥6.5 mA
Line impedance:

≤50 ohm per DIN 19234
Line length:

≤1000 m with 0.5 mm² conductor
Sensor supply voltage:

8.2 V
Switching time:

Approximately 10 ms

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Information

Overview Manuals Common Applications Product Precautions

HIMA F3237 is an eight-channel safety-related input module for NAMUR proximity switches and resistor-wired sensor circuits. The manufacturer sheet specifies automatic input tests and line-break and short-circuit monitoring with defined current thresholds.

Eight input circuits accept documented proximity-switch or resistor-wired sensors.
0 and 1 current bands are 0.35–1.2 mA and 2.1–6.0 mA.
Wire break is recognized at or below 0.28 mA; short circuit at or above 6.5 mA.
Automatic tests include switching, crosstalk and input-filter checks.

Match the front plug, channel mapping and installed sensor circuit to the approved HIMA safety application.

Important Notice: Verify Z 7108 / 3237 / C.. and the actual sensor-line current before replacement.

HIMA F3237 Manuals & Downloads

HIMA F3237 Technical Reference (PDF)HIMA F3237 Installation & Commissioning Guide (PDF)

The first PDF presents exact F3237 current bands, fault thresholds and interfaces; the second provides separate installation and acceptance checks. Both use the original HIMA F 3237 (9912) data sheet as their technical basis.

NAMUR proximity inputs

Read approved proximity-switch circuits using the documented current bands.

Resistor-wired sensors

Connect specified resistor-wired field circuits with the approved channel map.

Line diagnostics

Detect wire break and short circuit using the HIMA current thresholds.

Redundant sensing

Apply the original manufacturer redundant-connection diagram where engineered.

For HIMA F3237, verify the installed sensor type, current bands and Z 7108 front-plug variant before changing any safety input.

Record the complete F3237 marking and revision.

Use the site-approved safe-work and isolation procedure.

Identify each proximity or resistor-wired sensor circuit.

Confirm 0- and 1-signal current bands at all eight inputs.

Check the Z 7108 / 3237 / C.. front-plug variant.

Verify line impedance and cable length for the conductor.

Test wire-break and short-circuit diagnostics under control.

Complete the approved eight-channel safety proof test.

Alternative Names

HIMA F 3237

Technical notes

Verify the full F3237 marking, Z 7108 / 3237 front-plug variant, eight channel pairs, sensor type and current bands. Test line-break and short-circuit response in the approved safety application; do not infer compatibility from another eight-input card.

FAQ View All FAQ

What is HIMA F3237?

An eight-channel safety-related input module for proximity-switch or resistor-wired sensor circuits.
What are the 0-signal and 1-signal current bands?

The HIMA sheet gives 0.35–1.2 mA for 0 and 2.1–6.0 mA for 1.
When does it detect a wire break?

The documented wire-break threshold is at or below 0.28 mA.
When does it detect a short circuit?

The documented short-circuit threshold is at or above 6.5 mA.

Which front-plug marking must be checked?

Verify the Z 7108 / 3237 / C.. front-plug variant against the installed unit.
What sensor supply voltage is specified?

The HIMA sheet specifies 8.2 V for the sensor supply.
What line length is specified?

The sheet lists up to 1000 m with a 0.5 mm² conductor, subject to the stated line impedance.
Are the LED functions tested automatically?

No. The original sheet says the LED functions are not automatically tested.

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