Vacuum

Turbo

McMaster favorite surplus: TPH050 / TPU050 family

Sensor

McMaster sensor state 2024-07-17

• Got burned by mismatched GP275 sensor to gauge
  • I thought it was going to give an error like 40%, but its actually a zero point error => massive misreading / order of magnitudes
• Inficon
  • Found 3x BCG450 at flea market. 1 / 3 work
  • Notes
• MKS 901P might also go into ecosystem

GP275

GP275 controllers:

• GP375
  • Green display
  • RS232 as DB9
  • Circa 2009
• 275106, 275108
  • Red display
  • Cable seems to be uncommon
  • Cable has AC + GP275 connection
• Granville-Phillips 316 Vacuum Gauge Controller 316001
  • IG controller
  • Integrated power supply, controller
• HP 59827A
  • Rebranded GP
    • Somewhat similar to Granville-Phillips 316 Vacuum Gauge Controller 316001
  • Half width IG controller (integrated PS / controller)
• Granville Phillips 307001
  • Full width IG controller (half PS, half controller)
  • RS232 is optional card

GP275 sensor

Can get ones with integrated controllers. You can take the sensor out of them but it doesn't have the keying on the connector

Haven't played with DeviceNet, RS485, etc direct control on these

Hastings HPM-2002

Interesting but tubes are relatively scarce on surplus market

Nice integrated display + sensor pluggable architecture

https://www.youtube.com/watch?v=hrZwKTwS9cs

HASTING INSTRUMENTS VACUUM GAUGE MODEL 760 110-220 VAC 760

TELEDYNE HASTINGS DUAL SENSOR VACUUM GAUGE MODEL HPM-2002-OBE

HVG-2020B

Teledyne Hastings HPM-2002 Digital Dual Vacuum Digital Gauge w/ RS232 Option