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A6312

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Emerson A6312 is a 6TE dual-channel speed and key monitor for IMR6000/10 and IMR6000/30 racks.
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Technical specifications for A6312

  • Manufacturer:
    Emerson
  • Part Number:
    A6312
  • Product Family:
    AMS 6500 Machinery Health Monitor
  • Product Type:
    Dual-Channel Speed and Key Monitor
  • Stock:
    1
  • Important identity boundary:
    A6312-8, not A6312, is the 8TE AMS 6500 version
  • Channels:
    2 independent eddy-current differential inputs
  • Supported sensor families:
    PR6422, PR6423, PR6424 and PR6425
  • Input voltage range:
    0 to ±27.3 VDC
  • Frequency range:
    0 to 20 kHz; up to 65,535 rpm
  • Analog outputs:
    0/4 to 20 mA
  • Format:
    6TE card for AMS 6000 rack; one slot
  • Dimensions:
    3.0 × 12.84 × 16.0 cm
  • Power consumption:
    6 W maximum; 250 mA at 24 VDC
  • Operating temperature:
    0 to 65°C
  • Weight:
    0.32 kg
  • Tariff Code:
    9031809090
  • 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 Rack Compatibility Trigger Setup Redundancy Application
  • Confirm the 6TE AMS 6000 rack identity before ordering
  • Match both probe chains and trigger settings to the actual targets
  • Validate speed and phase-reference behavior independently

Emerson A6312 is a dual-channel speed and key monitor for IMR6000/10 and IMR6000/30 machinery-protection racks.

It processes compatible eddy-current probe signals for speed, phase-reference or redundant-speed functions and provides proportional, buffered and protection outputs.

Before replacement, confirm the exact rack width and model identity: A6312 is the 6TE AMS 6000 card, while A6312-8 is the separate 8TE version used in AMS 6500 racks.

Availability, condition, price, and shipping time for A6312 are confirmed during quotation.

Emerson A6312 Manuals, Datasheets, Links

Important 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.

  • Use A6312 only in the documented IMR6000 rack arrangement
  • Do not substitute A6312-8 solely because the functions are similar
  • Confirm slot width, connector and saved hardware definition
  • Set threshold and hysteresis from the actual sensor waveform
  • Verify target geometry and polarity at the lowest required speed
  • Check phase-reference pulse stability before enabling protection logic
  • Use matched sensors in the documented axial plane
  • Verify channel switchover and failure detection separately
  • Retain relay and voting assignments from the approved design
  • Dual-channel speed monitoring on turbines and compressors
  • Key/phase-reference generation for vibration analysis
  • Redundant speed measurement in IMR6000 machinery-protection systems
Description

A6312 is the 6TE speed and key monitor for IMR6000/10 and IMR6000/30 racks; A6312-8 is the separate 8TE AMS 6500 version.

Selection depends on rack identity, sensor waveform, target geometry, trigger threshold and channel mode.

After replacement, verify speed, key phase, redundancy and relay action against the approved machine configuration.

Alternative Names
A6312 A 6312 Emerson A6312 AMS 6000 A6312 Emerson AMS 6000 A6312
Technical notes
Emerson A6312 is a 6TE speed and key monitor for IMR6000/10 and IMR6000/30 racks. Before replacement, confirm the rack format, slot width, sensor configuration and saved settings. A6312-8 is the separate 8TE version designed for AMS 6500 racks.
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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.
Can Emerson A6312 be installed directly in an AMS 6500 rack?
No. Exact A6312 is the 6TE card for IMR6000/10 or IMR6000/30. The official 8TE AMS 6500 version is A6312-8 and must not be treated as the same catalog number.
Can Emerson A6312 provide a redundant speed measurement?
Yes, when both sensors view the documented axial plane and the saved configuration uses the supported redundant-speed arrangement; sensor geometry and voting logic must be verified.
What probe-chain data is needed before replacing Emerson A6312?
Record both PR642x probe and converter models, gaps, polarities, tooth or key target geometry, channel purpose, trigger thresholds and the rack configuration.
Why can Emerson A6312 read speed correctly but fail to produce a stable key signal?
Check target shape, probe gap, trigger level, polarity, minimum pulse width, shaft runout and whether the selected channel mode matches the physical key target.
What causes intermittent zero-speed indications on Emerson A6312?
Inspect sensor bias and amplitude at the lowest operating speed, connector condition, shielding, trigger hysteresis and mechanical target clearance before changing the card.
Can an Emerson A6312 replacement keep the old alarm settings without review?
Only after confirming the same channel modes, speed ranges, overspeed logic, relay assignments and sensor arrangement. A restored file for A6312-8 is not evidence of compatibility.
How should Emerson A6312 be commissioned after installation?
Verify both raw buffered signals, compare indicated speed with an independent reference, test key phase and redundant switchover where used, then prove alarms, relays and recovery under controlled conditions.