testo 312-4 - Przyrząd do pomiaru różnicy ciśnień do 200hPa

Nr katalogowy  0632 0327

  • Tightness testing and load testing on gas pipes

  • Serviceability testing with air by pressure drop on gas pipes

  • Pressure testing on drinking water and waste water pipes using air

  • Automatic recording of measuring values over several hours

Miernik różnicy ciśnień testo 312-4

2 086,00 Zł
2 565,78 Zł z VAT

Opis produktu

Miernik do przeprowadzania wszystkich koniecznych prób instalacji gazowych, jak również wodnych. Bezpieczny w użyciu dzięki elastycznym przewodom C-Flex o wysokiej odporności.
Rejestracja pomiarów oraz analiza danych za pomoca programu Easyheat (opcja) z funkcjami graficznymi.

 

Zakres dostawy

Miernik testo 312-4 wraz z baterią i protokołem kalibracji.
Pomiar temperatury - Typ K (NiCr-Ni)

Zakres pomiarowy

dependent on probe type used

Dokładność

±0,4 °C (-100 do +200 °C)*

±1 °C (pozostały zakres)*

Rozdzielczość

0,01 °C

*Accuracy information applies only to instrument without probes connected

Różnica ciśnień (wewnętrzny sensor)

Zakres pomiarowy

0 do 200 hPa

Dokładność

±0,03 hPa (0 do +3 hPa)

±1,5 % mierz.wart. (+3,1 do +40 hPa)

±2 hPa lub ±1 % pełnego zakresu (41 do +200 hPa)

Rozdzielczość

0,01 hPa

Pomiar ciśnienia (zewnętrzna sonda)

Zakres pomiarowy

0 do 25 bar

Dokładność

±0,6 % pełnego zakresu (0 do 10 bar)

±0,6 % pełnego zakresu (>10 do 25 bar)

Rozdzielczość

10 hPa

Ogólne dane techniczne

Wymiary

219 x 68 x 50 mm

Drukarka na podczerwień

Termometr na podczerwień

Wymiana danych

RS 232

Oprogramowanie na PC

Easyheat

Pamięć

25 000 mierzone wartości

Waga

600 g

Akcesoria

Kabel RS232

Nr katalogowy: 0409 0178

260,00 Zł
319,80 Zł z VAT
Kabel połączeniowy

Nr katalogowy: 0430 0143

230,00 Zł
282,90 Zł z VAT
9V akumulator do miernika

Nr katalogowy: 0515 0025

57,00 Zł
70,11 Zł z VAT
TopSafe (walizka ochronna)

Nr katalogowy: 0516 0446

260,00 Zł
319,80 Zł z VAT
Ładowarka do akumulatora 9V

Nr katalogowy: 0554 0025

52,00 Zł
63,96 Zł z VAT
Szybka bezprzewodowa drukarka Testo

Nr katalogowy: 0554 0549

1 001,00 Zł
1 231,23 Zł z VAT
Zasilacz

Nr katalogowy: 0554 1143

391,00 Zł
480,93 Zł z VAT
306,00 Zł
376,38 Zł z VAT
Ogranicznik

Nr katalogowy: 0554 3162

Poziom wysokiego ciśnienia 3/8" i 3/4"

Nr katalogowy: 0554 3163

199,00 Zł
244,77 Zł z VAT
Poziom wysokiego ciśnienia 1/2" i 1"

Nr katalogowy: 0554 3164

199,00 Zł
244,77 Zł z VAT
testo 312-4 hose set

Nr katalogowy: 0554 3172

474,00 Zł
583,02 Zł z VAT
Pełna wersja EasyHeat (oprogramowanie PC)

Nr katalogowy: 0554 3332

478,00 Zł
587,94 Zł z VAT
Pompa testowa

Nr katalogowy: 0554 3157

281,00 Zł
345,63 Zł z VAT

Pressure measurements on burners

Checking the gas pressure on burners is one of the standard measurements during services of domestic heating systems. This involves measuring the gas flow pressure and gas resting pressure of the system. The flow pressure, also called supplied pressure, refers to the gas pressure of the flowing gas and resting pressure of the static gas. If the flow pressure for gas boilers is slightly outside the 18 to 25 mbar range, adjustments must not be made and the appliance must not be put into operation. If the burner is nevertheless put into operation, it will not be able to function properly and, when the flame is generated, small explosions will occur and ultimately malfunctions; the burner will therefore shut down and the heating system will fail.

Pressure tests on gas pipes (load test)

The technical regulation for gas installations (in short: TRGI) is a binding and at the same time important regulation for skilled tradespeople. The TRGI governs how gas installations are to be planned, designed, serviced and maintained. This applies to all gas installations. This regulation is taken care of by the German Association for Gas and Water (DVGW). The TRGI 2008 is the current version. Amongst other things, this states that gas pipes are to be tested according to the construction phase (basic shell, completion and repairs). Load testing is one of the checks that plays a role in the application stated here: in this process, the material of a gas pipe is tested for stability and the connections for service life; this takes place prior to plastering over or concealment of the gas pipes. During load testing, the newly installed pipe, without fittings or gas appliances, is put under 1 bar pressure. The testing medium is air or inert gas. There must be no pressure drop detected during the test, which lasts at least 10 minutes.

Pressure tests on water pipes

According to the legal regulations of DIN EN 806-4, DIN 1988-7 and DIN 1610, drinking and waste water pipes are to be tested for leaks before being put into service by means of a pressure test with air, inert gas or water; they are also to undergo load testing with air or inert gas. However, for reasons of hygiene, it is best if the pipes remain dry until shortly before commissioning and do not undergo a leak test using water. A pressure test with air is also recommended to prevent metallic materials from corroding. The pressure test is split into two pressure-related parts where test pressure and time depend on the objective (load or leak). Leaks can usually be heard very quickly. If it is difficult to locate the leaks, the usual auxiliary tools and materials for gas pipes are used (spraying or brushing on foaming solutions).

Pressure tests on gas pipes (leak, load test)

The technical regulation for gas installations (in short: TRGI) is a binding and at the same time important regulation for skilled tradespeople. The TRGI governs how gas installations are to be planned, designed, serviced and maintained. This applies to all gas installations. This regulation is taken care of by the German Association for Gas and Water (DVGW). The TRGI 2008 is the current version. Amongst other things, this states that gas pipes are to be tested according to the construction phase (basic shell, completion and repairs). The following checks in particular play a role in the application stated here:

Load test
In this process, the material is tested for stability and the connections for service life; this takes place prior to plastering over or concealment of the gas pipes. During load testing, the newly installed pipe, without fittings or gas appliances, is subjected to 1 bar pressure. The testing medium is air or inert gas. There must be no pressure drop detected during the test, which lasts at least 10 minutes.

Leak test
This test is for checking the pipe for leaks, with fittings and without gas appliances. The measuring instrument must not register any drop in pressure during the minimum 10-minute testing period (depending on the system volume); the test pressure is 150 mbar (previously 110 mbar).

Temperature measurements on radiators

When measuring temperatures on radiators, the flow and return temperature are recorded in particular and assessed by the tradespeople. The flow temperature is defined as the temperature of the thermal transfer medium (e.g. water) that the system is supplied with. The temperature of the medium flowing out of the system is correspondingly called the return temperature. To prevent losses within the heat distribution system and achieve a better level of efficiency, spot recording of flow and return temperatures is necessary. Implementation of relevant measures ultimately leads to hydraulic adjustment on the basis of knowledge about the flow and return temperatures. This defines a procedure with which every radiator or heating circuit of a flat radiator within a heating system is supplied at a set flow temperature with the precise amount of heat needed to achieve the ambient temperature required for the individual rooms. Flawed operating conditions will result in considerable excess consumption of electricity and heating energy. The German Energy Saving Regulation (EnEV) requires hydraulic adjustment for systems being set up or overhauled for this very reason.

Pressure tests on gas pipes (leak test with external high pressure probe, load test)

The technical regulation for gas installations (in short: TRGI) is a binding and at the same time important regulation for skilled tradespeople. The TRGI governs how gas installations are to be planned, designed, serviced and maintained. This applies to all gas installations. This regulation is taken care of by the German Association for Gas and Water (DVGW). The TRGI 2008 is the current version. Amongst other things, this states that gas pipes are to be tested according to the construction phase (basic shell, completion and repairs). The following checks in particular play a role in the application stated here:

Load test
In this process, the material is tested for stability and the connections for service life; this takes place prior to plastering over or concealment of the gas pipes. During load testing, the newly installed pipe, without fittings or gas appliances, is subjected to 1 bar pressure. The testing medium is air or inert gas. There must be no pressure drop detected during the test, which lasts at least 10 minutes.

Leak test
This test is for checking the pipe for leaks, with fittings and without gas appliances. The measuring instrument must not register any drop in pressure during the minimum 10-minute testing period (depending on the system volume); the test pressure is 150 mbar (previously 110 mbar).

Katalogi

Instrukcje obsługi ENG

Oprogramowania

  • Software EasyHeat for testo 300, 312-4, 320, 324, 330, 380  (v2.12, EXE, 101.938 KB) Jeżeli masz już zainstalowane na swoim komputerze oprogramowanie easyheat, istniejąca wersja zostanie zaktualizowana do wersji. aktualizacja jest możliwa dla <strong>dowolnej wersji</strong> oprogramowania Testo easyheat. Niemniej jednak, wersja ta może być również używana jako wersja demo dla klientów, którzy nie posiadają jeszcze Testo easyheat. Traci ważność po 30 dniach, ale może być aktywowana w każdym momencie za pomocą klucza licencyjnego.