Order-Nr.  0563 1327

• testo 312-4 differential pressure gauge
• hose set up to 1.2bar for testo 312-4
• balloon pump with release screw
• conical test plug 1/2
• conical test plug 3/4
• testo fast printer
• pressure set for gas pressure measurements in heating systems
• system case

TESTO 312-4 Differential pressure gauge Basic set Specifications

Temperature – TC Type K (NiCr-Ni) :

• Measuring range : dependent on probe type used
• Accuracy :±0.4 °C (-100 to +200 °C)±1 °C (Remaining Range) *

Differential pressure (internal sensor) :

• Measuring range : 0 to +200 hPa
• Accuracy:±0.03 hPa (0 to +3 hPa)±1.5 % of mv (+3.1 to +40 hPa)±2 hPa or ±1 % of fsv (41 to +200 hPa)
• Resolution : 0.01 hPa

Pressure measurement (external probe) :

• Measuring range: 0 to +25 bar
• Accuracy :±0.6 % of fsv (0 to +25 bar)±0.6 % of fsv (>+10 to +25 bar)
• Resolution : 10 hPa

General technical data :

• Dimensions : 219 x 68 x 50 mm
• Interface printer : Infrared interface
• Data transfer : RS232
• PC software : Easyheat
• Memory : 25,000 measuring values