testo 312-4 - Differential Pressure Meter (High-pressure Set)

Order-Nr.  0563 1328

testo 312-4 differential pressure gauge
testo 312-4 hose set
balloon pump with release screw
conical test plug 1/2
conical test plug 3/4
testo fast printer
pressure set for gas pressure measurements on heating systems
high-pressure plug 3/8 und 3/4
high-pressue plug 1/2 and 1
high-pressure probe 1up to 25 bar
system case

Product Description

Overview

A variety of directives describe the tests which have to be carried out before commissioning water and gas pipes. The testo 312-4 differential pressure measuring instrument offers measuring processes for load and tightness tests as well as serviceability tests on gas pipes using air. It also enables the checking of static gas and gas flow pressures, as well as the nozzle pressure setting on gas burners or boilers.

These measurements are possible with the testo 312-4 differential pressure measuring instrument

  • Tightness and serviceability testing by pressure drop on gas pipes in accordance with DVGW TRGI 2008
  • Load testing on gas pipes in accordance with DVGW-TRGI 2008 using the included high-pressure probe
  • Pressure testing on drinking water pipes using water and with the support of the included high-pressure probe in accordance with DIN 1988 (TRWI) and using air in accordance with the ZVSHK information sheet
  • Pressure testing on waste water pipes using the included high-pressure probe
  • Checking the gas pressure regulator by recording the readings over a defined period (max. 25,000 readings)
  • Checking the gas connection and gas flow pressure, as well as setting the nozzle pressure on gas burners and boilers

Practical features of the differential pressure measuring instrument

The testo 312-4 pressure measuring instrument offers a high level of operating convenience in order for you to carry out pressure measurement efficiently - for instance through preset measuring processes or the clear presentation of readings on the large display. The included testo fast printer means you can produce measurement data printouts directly on site. The easyheat PC software is available to you as an option for data transfer and evaluation. Furthermore, probes which are also available for various measuring tasks can be attached to the differential pressure meter (e.g. high-pressure probe or thermocouple probe for temperature measurement).

 

Delivery Scope

testo 312-4 differential pressure meter, testo 312-4 hose set, balloon pump with release screw, conical test plug 1/2'', conical test plug 3/4'', testo fast printer (0554 0549), pressure set for gas pressure measurements on heating systems, high-pressure plug 3/8'' und 3/4'', high-pressue plug 1/2'' and 1'', high-pressure probe 1 up to 25 bar and system case

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)

Resolution

0.01 °C

Differential pressure (internal sensor)

Measuring range

0 to +200 hPa

Accuracy

±0.3 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

0.1 hPa

Pressure measurement (external probe)

Measuring range

0 to 25 bar

Accuracy

±0.6 % of fsv (0 to +10 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

Measuring rate

1 s to 24 h

Data transfer

RS232

PC software

Easyheat

Memory

25,000 measuring values

Weight

600 g Approx.

Product Brochures

Software