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Product Datasheet PDF | Software Manual PDF
Description
The Testo 312-4 high-pressure differential pressure gauge set is a specialized, industrial-grade testing suite configured for rigorous load, tightness, and strength inspections on high-pressure pipelines. Anchored by the 312-4 electronic pressure gauge, this kit includes a heavy-duty high-pressure probe operating up to 25 bar alongside multiple high-pressure test plugs. Featuring an internal memory for up to 25,000 values, an integrated infrared interface for immediate data printouts, and direct data transfer to Easyheat PC software, this robust configuration guarantees precise metric documentation for certified pipeline commissioning.
Industrial Applications
- Conducting official load and tightness testing on high-pressure industrial gas mains and commercial networks
- High-pressure water pipe verification and strength inspections on drinking or waste water pipe installations
- Long-term log tracking and performance analysis of industrial gas pressure regulators and heating burners
Technical Specifications
| Parameter | Value |
| External High-Pressure Probe Range | 0 to 25 bar (Resolution: 10 hPa) |
| External Probe Accuracy | ±0.6 % of fsv |
| Internal Sensor Range | 0 to +200 hPa (Resolution: 0.1 hPa) |
| Temperature Integration | TC Type K input (-100 to +200 °C core instrument accuracy) |
| Data Storage Capacity | 25,000 measuring values |
| Connectivity Protocols | RS232 connection, Infrared printing interface |
Package Contents
- Testo 312-4 differential pressure gauge
- High-pressure probe (1 to 25 bar range)
- Hose set up to 1.2 bar with balloon pump and release screw
- Conical test plugs (1/2 inch and 3/4 inch sizes)
- High-pressure test plugs (3/8, 1/2, 3/4, and 1 inch sizes)
- Testo fast printer with wireless infrared link
- Gas pressure set for heating systems
- Easyheat PC data processing software
- Heavy-duty system transport case