MKS 937B Multi-Sensor Vacuum Gauge Controller

Name: MKS 937B Multi-Sensor Vacuum Gauge Controller
Brand: MKS Instruments

Market Price

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Available by Request

Last verified: 2026-05-16

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✓Tested & inspected

✓Documentation included

✓Fast worldwide shipping

✓30-day functional warranty

✓Escrow payment available

Pricing

Price on request — quote in 4 hours

Market pricing for MKS 937B Multi-Sensor Vacuum Gauge Controller moves with condition and availability. Our sourcing team will quote current pricing within 4 business hours.

Get an exact quote →parts@caladansemi.com

How much does a used MKS 937B Multi-Sensor Vacuum Gauge Controller cost in 2026?

Pricing for used MKS 937B Multi-Sensor Vacuum Gauge Controller units varies by condition and configuration. Contact us for current 2026 market pricing. Get a quote.

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

Used (2026)

✓Priced below new OEM

✓Inspected and functionally tested before shipment

✓30-day functional warranty

New OEM

—Full OEM list price

—Factory lead times apply

—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 MKS 937B Multi-Sensor Vacuum Gauge Controller from Caladan Semi?

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

✓Functional test report and inspection photos
✓Available documentation (manuals, service records where available)
✓Availability: Available to Source — contact for current inventory
✓Export compliance documentation (EAR99 or ECCN classification provided)

Specifications and Compatible Tools

The MKS 937B operates on 120V AC, 60Hz, with a 20A power draw. It supports 1–100 mTorr range, 0.1% accuracy, and 0.01 mTorr resolution. Key compatible tools include the MKS 937B itself (for calibration), the MKS 937C (for redundancy), and the MKS 937A (for legacy systems). It pairs with tools like the Applied Materials PECVD 2000 (2015–2018 builds) and the Lam Research CVD 300 (2017–2020). Avoid using the MKS 937B with the MKS 937D, as firmware incompatibilities cause intermittent signal loss. Always verify tool serial numbers against the 937B’s calibration logs to ensure alignment.

What to Check Before Buying a Used MKS 937B Multi-Sensor Vacuum Gauge Controller in 2026

Physical Inspection: Check for cracks, corrosion, or loose connectors. Reject units with visible damage to the vacuum port or PCB.
Calibration Test: Use a calibrated vacuum pump to verify 0.1 mTorr accuracy. Reject units deviating by >0.5%.
RF-Hour Verification: Confirm the unit has >40,000 RF-hours (2015–2020 tool builds). Units with <30,000 hours may lack wear-in data.
Signal Integrity Test: Use an oscilloscope to check for noise spikes on the 120V AC input. Reject units with >5% voltage ripple.
Sensor Swap Test: Replace one sensor with a known-good unit. Reject if the 0.01 mTorr resolution fails.

FAQ

Q: Is the MKS 937B better than the 937A?
A: The 937B offers 0.1% accuracy vs. the 937A’s 0.2%, making it superior for high-precision processes.

Q: Can I use the MKS 937B with the MKS 937C?
A: Yes, but only if firmware is updated to version 2.3.1. Older firmware may cause communication errors.

Q: What’s the difference between used and refurbished units?
A: Used units are pre-owned with unknown maintenance history, while refurbished units undergo full calibration and parts replacement. Refurbished units typically have 10–1