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Product Datasheet PDF | Software Manual PDF
Description
The Testo 312-4 differential pressure gauge basic set is a comprehensive diagnostic solution engineered for high-accuracy pressure testing on gas and water lines. Featuring an internal pressure sensor with a measuring range from 0 to 200 hPa and supporting external high-pressure probes up to 25 bar, this professional toolkit allows fast parameter logging. Its large internal memory holds up to 25,000 values, which can be managed via Easyheat PC software or printed directly on-site using the infrared interface of the integrated Testo fast printer, making it ideal for certified pipeline auditing.
Industrial Applications
- Performing tightness and load testing on commercial gas pipelines and main distribution networks
- Differential pressure verification and diagnostic tracking on industrial heating systems and burners
- High-pressure pipeline infrastructure evaluation using advanced external pressure probes
Technical Specifications
| Parameter | Value |
| Internal Sensor Range | 0 to +200 hPa |
| Internal Sensor Resolution | 0.01 hPa |
| External Probe Support | 0 to +25 bar (Resolution: 10 hPa) |
| Temperature Integration | TC Type K input (-100 to +200 °C instrument accuracy) |
| Data Retention Memory | 25,000 measuring values |
| Data Connectivity Interfaces | RS232 interface, Infrared link for printing |
Package Contents
- Testo 312-4 differential pressure gauge
- Hose set up to 1.2 bar with balloon pump and release screw
- Conical test plugs (1/2 inch and 3/4 inch sizes)
- Testo fast printer with infrared transmission
- Gas pressure measurement set for heating systems
- Easyheat desktop PC software
- Heavy-duty system transport case