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# MKS Instruments / Granville-Phillips 830501-U1-0 Vacuum Quality Monitor Controller

_Summary and Categories are this item's record. The description sections and FAQ are machine-assisted and can contain errors; where they disagree with the record, the record is correct, and where description sections disagree with each other, Details wins._

## Summary

- Manufacturer: Granville-Phillips
- Model: 830501-U1-0
- Condition: Used and in Excellent Condition
- Price: $395.00 USD
- Availability: In stock, 4 available
- Warranty: 1-Year Warranty with 30-Day Return Guarantee
- ITAR restricted: No
- Shipping weight: 2.2 lb, estimated
- Shipping dimensions: 8X8X3 in, estimated

## Categories

- Industrial Systems Equipment > PLCs and Controllers > Controllers (primary)

## Details

### Configuration

- Mounting: Benchtop
- USB: 2.0
- AMU: 1-135
- Setpoints: None

## Function

The MKS Instruments / Granville-Phillips 830501-U1-0 is a Vacuum Quality Monitor (VQM) Controller for the 830 VQM system, featuring a benchtop mounting USB 2.0 interface, 1-135 AMU mass range, and no setpoints as specified.

Key Specifications Matching Configuration.
Mass Range/Scan Time. 1–135 amu in 85 ms,enabling fast total and partial pressure measurements for the top 10 gases via ratiometric analysis.
Mounting Compact benchtop controller design (720 grams), with remotely mounted autoresonant ion trap mass spectrometer gauge.
USB 2.0 (full speed, 12 Mb/sec) for data I/O, software connectivity (VQM Viewer), logging, and intuitive GUI with trend graphs, leak detection, and single-gas calibration.
Setpoints. None configured in this model (830501-U1-0) with universal power supply, optional total pressure module (e.g., via RS-485) supported but not included.
Power/Environment 5W max (DC jack, universal supply), 0–40°C operating.

System Overview
This controller pairs with a VQM gauge for UHV to 10?5 Torr operation, providing gas composition (e.g., hydrogen/helium accurately), spectral output, and process monitoring like leak trends—ideal for vacuum quality assessment in manufacturing or research. Note: Related 835 VQM models extend to 145 amu but differ from this 830 configuration.

## Images

- <https://www.artisantg.com/itemimages/mks_instruments_granville_phillips_830501_u1_0_view1_2026430125237.jpg>
- <https://www.artisantg.com/itemimages/mks_instruments_granville_phillips_830501_u1_0_view2_2026430125237.jpg>
- <https://www.artisantg.com/itemimages/mks_instruments_granville_phillips_830501_u1_0_view3_2026430125237.jpg>
- <https://www.artisantg.com/itemimages/mks_instruments_granville_phillips_830501_u1_0_view4_2026430125237.jpg>
