Used MKS 628 Baratron High Accuracy Manometer

Name: Used MKS 628 Baratron High Accuracy Manometer
Brand: MKS Instruments
Price: 2144 USD
Availability: InStock

Market Price

→ Stable

$728–$4K

Typical secondary market pricing · USD

Low $728Avg $2,144High $3,560

Save 40-70% vs OEM new

Aggregated from secondary market sources · Not a guaranteed offer

Available by Request

Last verified: 2026-05-16

Request Quote · $728 – $4K

Talk to a specialist · parts@caladansemi.com

✓Tested & inspected

✓Documentation included

✓Fast worldwide shipping

✓30-day functional warranty

✓Escrow payment available

Market Data

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How much does a used Used MKS 628 Baratron High Accuracy Manometer cost in 2026?

A used Used MKS 628 Baratron High Accuracy Manometer from MKS Instruments typically sells for $728 – $4k on the secondary market in 2026. That's a savings of 40-70% compared to new OEM pricing. Prices vary based on condition, firmware version, and included accessories. Request a quote for current availability.

Used MKS Instruments Subassemblies vs. buying new: is it worth it in 2026?

Used (2026)

✓Save 40-70% vs. new OEM

✓Lead time: 2-4 weeks

✓Condition: B grade

✓30-day functional warranty

New OEM

—Full OEM price (1–2.5× used)

—Lead times: 12–52 weeks

—New condition, full warranty

—Factory support included

Most buyers in 2026 choose used for cost and speed. OEM new is preferred when full factory support or first-article qualification is required.

What's included with a used Used MKS 628 Baratron High Accuracy Manometer from Caladan Semi?

Every unit Caladan sources in 2026 is inspected and documented before sale. Here's what you get:

✓Grade B — good working condition, normal wear
✓Functional test report and inspection photos
✓Available documentation (manuals, service records where available)
✓Estimated lead time: 2-4 weeks after sourcing confirmation
✓Availability: Available to Source — contact for current inventory
✓Export compliance documentation (EAR99 or ECCN classification provided)

How Much Does Cost in 2026?

Used MKS 628 Baratron units in 2026 range from $728–$3,560, depending on condition, RF-hour count, and calibration status. Refurbished units command $1,200–$2,800, reflecting higher reliability and pre-certification. Savings vs new OEM list price (typically $5,000–$10,000) are 40–70%, making used units a cost-effective alternative. Units with >40,000 RF-hours are generally acceptable for secondary applications, but primary process use requires <30,000 RF-hours. Prices reflect 2026 market trends, with demand declining due to overstocked inventory. Buyers should verify calibration certificates from 2024 or later to ensure accuracy. Note that 2026 pricing excludes shipping and handling, which vary by region.

Specifications and Compatible Tools

The MKS 628 Baratron measures 0–1000 Torr with ±0.1% FS accuracy, operating on 24V DC power. It features a capacitance-based sensor and 0.1% full-scale repeatability. Compatible tools include:

MKS 628D (2015–2020 models)
MKS 628E (2021–2023 models)
MKS 628C (2010–2014 models)

Avoid pairing with MKS 628A (2005–2009 models), as its analog output interface is incompatible. Always confirm compatibility with the specific controller model. Units must be matched to a compatible power supply and signal conditioning module.

What to Check Before Buying a Used in 2026

Verify calibration certificates: Ensure certificates are dated within 12 months of 2026 and include traceability to NIST standards.
Test with a pressure calibrator: Use a Fluke 729 to validate accuracy at 50% and 100% of full scale. Reject units deviating by >0.2% FS.
Inspect RF-hour count: Reject units with >40,000 RF-hours unless for secondary applications. Primary use requires <30,000 RF-hours.
Check physical integrity: Look for cracks in the diaphragm or corrosion on the housing. Replace units with visible damage.
Confirm serial number match: Cross-reference with OEM records to ensure the unit is not flagged for recall or defect.

FAQ

Q: Is the MKS 628 better than the MKS 628D?
A: The MKS 628D offers ±0.05% FS accuracy vs the MKS 628’s ±0.1% FS, making it superior for high-precision applications. However, the MKS 628 is more cost-effective for general