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Technical specifications for 3500/25 125800-01
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Manufacturer:Bently Nevada
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Product Category:Machinery Monitoring Systems
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Spare Part Number:125800-01
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Estimated shipping dimensions:2.5x11.2x24.2cm
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Weight:0.38 kg
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Tariff Code:8537101190
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Counliy of origin:USA
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Termination:Internal
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Isolation:Non-isolated
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Input types:Proximity probe or magnetic pickup
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Input range:+0.8 to -21.0 V
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Input impedance:21.8 kohm minimum
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Frequency range:0.017 Hz to 20 kHz
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Buffered outputs:Front and rear
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Rack space:1 full-height rear slot
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Operating temperature:-30 to +65 degC
Information
Overview
Manuals
Common Applications
Product Precautions
Bently Nevada 125800-01 is the non-isolated Keyphasor I/O module with internal terminations for a 3500/25 Enhanced Keyphasor Module. The paired system accepts proximity-probe or magnetic-pickup inputs and provides timing references for speed, phase and vector measurements.
- Non-isolated internal terminations
- Two transducer inputs with the paired main module
- Once-per-turn or multi-event processing
- Front and rear buffered Keyphasor outputs
Pair 125800-01 with the documented 149369-01 Enhanced Keyphasor main module and keep the input wiring within the non-isolated range. Configure threshold, hysteresis and events per revolution from the actual transducer signal, then verify buffered and rack Keyphasor outputs.
Important Notice: Confirm quotation scope, physical marking, included accessories and installed-system compatibility before work.
Apter Power 125800-01 Manuals and Guides
Apter Power 125800-01 Product Technical ReferenceBently Nevada 3500/25 Enhanced Keyphasor Module Datasheet 141532 Rev. Y
Important Notice: The first document is an Apter Power model-specific technical reference; the second link is the unmodified official manufacturer publication.
Shaft speed reference
Supplies a timing pulse from a proximity probe or magnetic pickup.
1X phase measurement
Provides the angular reference needed for vector amplitude and phase.
Multi-event gear reference
Supports configured event processing up to the published frequency limit.
Legacy Keyphasor upgrade
Pairs with the enhanced main module while retaining supported form, fit and function.
Read the applicable Bently Nevada documentation before work. Verify 125800-01 from the physical marking and the installed system record.
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Verify the 125800-01 marking and internal-termination type.
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Pair it with the documented 149369-01 main module and correct rear slot.
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Keep the non-isolated input within +0.8 to -21.0 V.
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Verify whether each channel uses a proximity probe or magnetic pickup.
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Select manual or automatic threshold from the measured waveform, not a copied channel.
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Set hysteresis between 0.2 and 2.5 V as required by the actual signal.
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Confirm events per revolution and channel pairing before phase use.
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Prove speed, buffered outputs, phase reference and final diagnostics before release.
Technical notes
Pair 125800-01 with the documented 149369-01 Enhanced Keyphasor main module and keep the input wiring within the non-isolated range. Configure threshold, hysteresis and events per revolution from the actual transducer signal, then verify buffered and rack Keyphasor outputs.
FAQ View All FAQ
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Is 125800-01 an isolated Keyphasor I/O module?No. It is the non-isolated I/O module with internal terminations.
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Which main card operates with 125800-01?Use the 149369-01 Enhanced Keyphasor Module in the documented half-height front position.
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What input range applies to 125800-01?The non-isolated Keyphasor I/O range is +0.8 V to -21.0 V.
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Which transducers may feed 125800-01?The paired Keyphasor module accepts proximity-probe transducers or magnetic pickups.
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When can automatic threshold be used with 125800-01?The signal must be at least 2 V peak-to-peak and at least 120 rpm or 2 Hz.
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What manual-threshold amplitude is needed on 125800-01?The published minimum signal amplitude is 500 mV peak-to-peak; the threshold is selectable from 0 to -20 Vdc.
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What frequency span can 125800-01 support through the enhanced module?The input processing range is 0.017 Hz to 20 kHz, including multiple events per revolution.
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Which outputs should be checked after 125800-01 commissioning?Verify both front coaxial buffered outputs and rear Euro-style buffered outputs against speed and phase expectations.
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