VG-SM225 Cold Cathode Vacuum Gauge – PTR225N-Compatible High Vacuum Gauge

$499.00

Cold Cathode Vacuum Gauge for Reliable High Vacuum Monitoring Designed for stable measurement in high vacuum ranges where Pirani gauges reach their limits – an ideal choice for coating systems, research equipment, and OEM vacuum instruments.

  • High vacuum measurement from 1×10⁻⁷ to 1×10⁻³ Torr

  • PTR225N-compatible interface for easy replacement

  • Cost-effective solution for routine high vacuum applications

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SKU: VG-SM225 Category:

Description

Typical Applications

Thin Film & Coating Systems

Used to monitor chamber vacuum during deposition and coating processes.
Supports stable vacuum feedback for process control.
Ideal for industrial coating equipment.

Thin film coating system example

High Vacuum Research Systems

Applied in physics and material science research setups.
Reliable monitoring in high vacuum regimes beyond Pirani capabilities.

OEM High Vacuum Equipment

Designed for embedded integration into vacuum systems.
PTR225N-compatible signal output simplifies system replacement and upgrades.

High Vacuum System photo

Industrial Vacuum Monitoring

Continuous monitoring of high vacuum conditions.
Suitable for long operational cycles in industrial environments.


Suitable / Not Suitable

Suitable for

High vacuum measurement (10⁻⁷ to 10⁻³ Torr)
Cold cathode ionization applications
Industrial and laboratory vacuum systems
OEM and embedded vacuum equipment
Cost-sensitive high vacuum projects

Not recommended for

Rough vacuum or atmospheric pressure measurement
Ultra-high vacuum (UHV) research requiring extreme precision
Applications requiring instant ignition below 10⁻⁶ Torr
Environments with severe magnetic interference

Technical Overview

Measurement & Performance

  • Measurement principle: Cold cathode ionization
  • Measurement range (air): 1×10⁻⁷ to 1×10⁻³ Torr
  • Accuracy (air):
    • ±20% (1×10⁻⁶ to 1×10⁻³ Torr)
    • ±30% (1×10⁻⁷ to 1×10⁻⁶ Torr)

Electrical & Mechanical

  • Output signal: Analog voltage, 0–10 V
  • Output scaling: Logarithmic, 1.33 V / decade
  • Supply voltage: 20–28 V DC
  • Power consumption: < 7 W
  • Vacuum connection: KF25
  • Electrical connector: RJ45

Environmental

  • Operating temperature: 5–50 °C

Ignition Behavior

Typical Ignition Time (Air)

  1. At 1×10⁻⁴ Torr: ~2 seconds
  2. At 1×10⁻⁵ Torr: ~1 minute
  3. At 1×10⁻⁶ Torr: ~5 minutes

This behavior is typical for cold cathode gauges and should be considered during system startup and control logic design.


Why Choose Poseidon Scientific

r&D

Fully in-house cold cathode design and manufacturing

Stable

Stable batch-to-batch performance

OEM

OEM & white-label support

price

Competitive alternative to imported high vacuum gauges
PTR225N-compatible signal output


OEM & Customization Capabilities

Logo and private labeling
Output signal configuration
Electrical connector type
Mounting and mechanical adaptation
Packaging and documentation

Our engineering team supports small to mid-volume OEM orders with short lead times and technical cooperation.


3D preview

Whether you are replacing an existing cold cathode gauge
or designing a new high vacuum system, we are ready to support you.


Talk to Our Vacuum Measurement Engineers

Whether you are replacing an existing cold cathode gauge
or designing a new high vacuum system, we are ready to support you.

Additional information

Weight447 g
Dimensions163 × 92 × 65 mm
Brand

Poseidon Scientific

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