Key Technical Specifications
- Product Model: 0190-72680
- Manufacturer: Applied Materials
- Product Type: Pressure Vacuum Gauge
- Application: Etch / CVD Chamber Monitoring
- Measurement Range: High-Vacuum (Verify exact Torr/mBar range with OEM)
- Output Signal: Analog / Digital (Verify specific protocol)
- Operating Temp: Standard Cleanroom Tolerance
- Mounting: Flange / Port (Verify size)
- Power Supply: Standard SME DC (Verify voltage)
- Condition: Refurbished / Tested
Product Introduction
Applied Materials 0190-72680 is a pressure vacuum gauge used in semiconductor fabrication chambers. It provides real-time feedback for process control during etch and deposition steps.This gauge measures low-pressure environments with specific accuracy tolerances required by Applied Materials tool specs. Field data shows that drift in these sensors directly impacts etch rate uniformity. Always verify the exact measurement range and output protocol against your current system configuration before installation.
Installation & Configuration Guide
Preparation (10 min)
Verify the new gauge matches the old one exactly. Check the revision suffix. Ensure you have the correct torque wrench for the flange. Confirm the chamber is at atmospheric pressure.Removal (5–10 min)
Isolate the gauge from the chamber. Disconnect power and signal cables first. Remove the mounting hardware. Inspect the port for debris or damaged threads. (I once saw a technician strip a flange thread because he forced it — don’t rush this step.)Installation (10 min)
Clean the mating surface thoroughly. Install the new gasket. Hand-tighten the gauge, then torque to spec in a star pattern. Reconnect cables. Verify pin alignment before pushing connectors home.Power-On & Test (10 min)
Restore power to the gauge. Check for LED status indicators. Run a zero-calibration if supported. Compare readings against a reference gauge. Log the baseline value in your maintenance system.
Troubleshooting Quick Reference
| Symptom | Probable Cause | Action |
|---|---|---|
| Erratic readings | Contaminated sensor | Clean or replace gauge |
| No signal output | Power or cable fault | Check 24V DC supply and continuity |
| Reading stuck at max | Sensor saturation | Verify chamber pressure; check for leaks |
| Intermittent signal | Loose connector | Reseat connections; inspect for corrosion |
| Fails self-test | Internal fault | Replace unit; verify firmware compatibility |
Dimensions, Mounting & Wiring Notes
- Dimensions: Verify H×W×D against OEM mechanical drawing (varies by revision)
- Mounting: Flange-mounted; use OEM-specified torque values
- Wiring: Multi-pin connector; verify pinout against wiring diagram
- Note: Always photograph DIP switches and connector orientation before removal.
FAQ
Will this gauge fit my AME tool?
It depends on the tool model and revision. 0190-72680 is used across multiple platforms, but flange sizes and connector types vary. Send us your tool serial number and we’ll confirm compatibility before you order.I received the gauge but the reading is way off. What now?
First, check your zero calibration. If it’s still wrong, verify your reference gauge is accurate. We’ve seen cases where the reference was drifting, not the new part. If both check out, contact us for RMA.Is this gauge new or refurbished?
This unit is refurbished and fully tested under simulated operating conditions. It is not factory-sealed new surplus. Function is verified; cosmetic wear may be present.Can I use this as a direct replacement for an older revision?
Often yes, but not always. Applied Materials sometimes changes output protocols or calibration constants between revisions. Always cross-check the full part number including suffix.What’s the lead time if you don’t have it in stock?
Typically 3–5 business days for tested units. If you need a specific revision that’s backordered, we’ll tell you upfront rather than ship something incompatible.Do you include a test report?
Yes. Every unit ships with a test record showing output verification at multiple pressure points. No report, no shipment.I’ve never replaced one of these before. Any tips?
Take photos of everything before you disconnect. Label your cables. And never torque the flange bolts in a circle — always use a star pattern. Uneven pressure is the #1 cause of post-installation leaks.
