M4A-AT
M4A-AT
M4A-AT
M4A-AT
M4A-AT
M4A-AT
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    Apter Power reviews generation evidence, condition, official records, quotation, and part-matching requirements before shipment.

M4A-AT

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K-TEK M4A-AT is the previous-generation electronics module for AT100/AT200 magnetostrictive level transmitters, identified separately from the later M4A-AT-2017 design.
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Technical specifications for M4A-AT

  • Manufacturer:
    K-TEK
  • Part Number:
    M4A-AT
  • Product Family:
    K-TEK
  • Product Type:
    AT100/AT200 Electronics Module
  • Stock:
    1
  • Supported transmitter generation:
    Pre-2017 AT100/AT200
  • Electronics family:
    M4A
  • Display interface:
    Local electronics-module display and keys
  • Successor marking:
    M4A-AT-2017
  • Generation interchangeability:
    Not interchangeable with 2017 modules
  • Weight:
    0.12 kg
  • Estimated shipping dimensions:
    7.4x6x5.1cm
  • Tariff Code:
    Please confirm the destination before shipping
  • Country of origin:
    USA
  • 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 Generation ID Transmitter Match Service Handover Product Applications

Features:

  • Legacy electronics identity: belongs to pre-2017 AT100/AT200 transmitters
  • Generation boundary: differs mechanically and functionally from the 2017 module
  • Serviceable module format: provides the local electronics and operator interface for the matched transmitter
M4A-AT is best identified as a legacy transmitter electronics assembly rather than the complete level instrument.

Its most important selection fact is the generation split introduced in 2017.

A visually similar later module must not be treated as a direct interchange without the matching transmitter architecture.
Apter Power can review M4A-AT face markings, transmitter generation, official enhancement records, condition, and quotation requirements.
K-TEK M4A-AT AT100/AT200 Electronics Module Manuals,Datasheets,Link
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.
  • Legacy marking: read the exact module part number on the installed face
  • Transmitter build: determine whether the AT100/AT200 was produced before the 2017 change
  • Board indicator: inspect the mounting area for the generation marker described by ABB
  • Old-to-old pairing: use M4A-AT only with the applicable previous-generation transmitter
  • New-to-new pairing: keep M4A-AT-2017 with the redesigned architecture
  • Mixed generation: stop if module and mounting-board evidence disagree
  • Photographic record: retain clear images of the module label and transmitter nameplate
  • Configuration record: save the approved transmitter setup before electronics work
  • Return test: compare the indicated level and output behavior with the process reference after service
  • Legacy AT100 service: restore matched electronics in an installed magnetostrictive transmitter
  • Legacy AT200 service: maintain the correct module generation during transmitter repair
  • Spare identification: separate pre-2017 inventory from modules carrying the -2017 marking
Description
Earlier K-TEK AT100 and AT200 magnetostrictive level transmitters use M4A-AT as their removable electronics module. ABB's official enhancement notice lists it as the previous part number before the 2017 electronics redesign.

The replacement boundary for M4A-AT is physical as well as electrical. ABB added a mounting-board indicator and a revised module marking for the new generation specifically to prevent an incorrect electronics module from being installed in the transmitter.

Service work on M4A-AT should therefore begin with the installed transmitter generation and module face marking. The later 2017 electronics module is not designed for earlier units, and the legacy module is not intended for transmitters built with the revised architecture.
Alternative Names
M4A AT M4AAT AT100 AT200 Electronics Module K-TEK Legacy Level Transmitter Module
Technical notes
M4A-AT and M4A-AT-2017 are generation-specific electronics modules, not interchangeable suffix variants. ABB states that the new module is not designed for prior-generation transmitters and the old module is not functional in 2017 devices; stop replacement work until the transmitter build generation and mounting-board indicator agree.
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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.
Why is M4A-AT not interchangeable with the revised 2017 electronics module?
ABB redesigned the electronics and mounting arrangement for the 2017 transmitter generation. Each module is intended for its matching architecture, so the suffix marks a real compatibility boundary.
How can a buyer confirm that M4A-AT is the correct spare?
Ask for photographs of the installed module label, transmitter nameplate, and mounting-board indicator. The legacy part number and pre-2017 construction must agree before ordering.
What should be done if an M4A-AT-2017 module was supplied for an older transmitter?
Do not force the installation. Keep the original configuration and hardware evidence, then source the generation-correct module or follow an ABB-approved transmitter upgrade path.
Can M4A-AT be selected from the AT100 or AT200 model name alone?
No. The transmitter family spans the electronics change. The build generation and physical markings are necessary because both old and revised modules relate to those transmitter families.
Which commissioning result matters after M4A-AT is replaced?
The local indication and configured output should follow a known process-level reference across the required range. A powered display alone does not prove correct transmitter operation.
What information should accompany an urgent M4A-AT quotation request?
Provide the exact module marking, transmitter model and serial evidence, photographs, quantity, condition, destination, required date, and whether a -2017 module was previously attempted.