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MKS

PR4000B

MKS PR4000B family
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MKSPR4000B
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What it is

The MKS PR4000B is a digital power supply and readout instrument.[1]

What do the numbers mean?

Vacuum & pumping4

Type
Vacuum gauge controller[1]
Accurate?
Gauge support
Up to six vacuum gauges and/or mass flow controllers[1]
Accurate?
Control capability
Provides pressure measurement, flow, valve, and pressure control[1]
Accurate?
Closed-loop pressure control option
Available for use with MKS valves[1]
Accurate?

Configuration & options1

Communication
RS232 and RS485[1]
Accurate?
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What does it need to run?

Site utility requirements, footprint, and infrastructure needed to install and operate this tool. Sourced from public records.

  • TypeVacuum gauge controller[1]
  • Gauge supportUp to six vacuum gauges and/or mass flow controllers[1]
  • Control capabilityProvides pressure measurement, flow, valve, and pressure control[1]
  • Closed-loop pressure control optionAvailable for use with MKS valves[1]

Where are the manuals?

Generated from public-source data on file. Enter your email to access — nothing is published; details are routed privately.

Not publicly documented

Field notes

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Frequently asked questions

What communication interfaces are available on the PR4000B?

RS232 is standard, and RS485 is available as an option for dual-channel operation.[1]

Is the RS485 interface standard?

No, RS485 is optional and is used for dual-channel operation.[1]

Not publicly documented

The following facts about the PR4000B are absent from this record as of this revision. First-hand knowledge or a citation closes a gap; every submission is reviewed before publication.

  • No publicly documented production dates or lifecycle milestones (introduction, end of production, EOL) for the PR4000B are on record.

    Answerable by: OEM historical records or a trade-press announcement

  • No publicly documented variants, configuration options, or revision breakpoints of the PR4000B are on record.

    Answerable by: an OEM product catalog or an engineer who ordered or specified the tool

  • The control-system platform and OS era of the PR4000B are not on record.

    Answerable by: an engineer who operated it or OEM installation records

  • No publicly documented failure modes or field errata for the PR4000B are on record.

    Answerable by: a field service engineer, process engineer, or maintenance technician

  • The process node or technology generation of the PR4000B is not on record.

    Answerable by: an OEM datasheet or a fab qualification report

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Sources & citations

Sources (1)Every fact above is drawn from these public sources
  1. [1]api.p1.mks.com — api.p1.mks.comapi.p1.mks.com
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Last updated Sep 22, 2026.

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