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Начало » Продукти » Уреди за измерване на налягане » Differential pressure Instruments » testo 312-4 – Differential pressure measuring instrument

testo 312-4 – Differential pressure measuring instrument

Cat. Number: 0632 0327

Differential pressure gauge testo 312-4

  • Category: Differential pressure Instruments, Pressure
  • Branch: Industry
  • Manufacturer: TESTO AG
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Brochure testo 312-4_EN-1218

Description
Technical data
Description

A measuring instrument for carrying out all necessary tests on gas heaters and pipes as well as water pipes. Inherently safe thanks to the use of C-Flex hoses with high impermeability. Legally compliant measurement procedure for pre-test, main test and leakage quantity measurement on gas pipes. Recording of measurement values over a defined period (e.g. 24 h) and data transfer and analysis on PC software incl. graphic presentation.

• Gas-tightness and serviceability test by pressure drop on gas pipes according to DVGW-TRGI 2008
• Load test on gas pipes according to DVGW-TRGI 2008 with the help of the high pressure probe
• Checking the regulator by recording the measurement values over a defined period
• Checking the gas connection pressure and gas flow pressure as well as setting the jet pressure on gas burners and boilers
• Pressure tests on drinking water pipes with water using the high-pressure probe according to DIN 1988 (TRWI) as well as with air accoding to the ZVSHK information sheet
• Pressure test on waste water pipes according to DIN EN 1610
 
Application
Technical data
 
Probe type Type K
Accuracy                                         ±0.4 °C (-100 to +200 °C)
±1 °C (remaining range)
 
Probe type High pressure probe
Meas. Range 0 to 25 bar
Accuracy ±0.5% of fsv
Resolution 10 hPa
 
Probe type Pressure probe
Meas. Range 0 to 200 hPa
Accuracy ±0.03 hPa (0 to +3 hPa)
±1.5% of mv (+3.1 to +40 hPa)
±2 hPa null ±1% of fsv (+41 to +200 hPa)

General technical data

Interface printer Infrared interface
Memory                                          
Approx. 25.000 readings                        
Weight
Approx. 600 g
Dimensions
219 x 68 x 50 mm
Interface printer Infrared interface
Warranty 2 years

 

 

Accessories

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Hose set for testo 312-4

Кат. номер: 0554 3172

Balloon pump with release valve

Кат. номер: 0554 3173

High-pressure probe up to 25 bar

Кат. номер: 0638 1743

easyheat PC analysis software

Кат. номер: 0554 3332

Shows measurement in form of diagrams, tables and manages customer data
1 2 … 6

Probes

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Quick-action surface probe with sprung thermocouple strip Type K (NiCr-Ni)

Кат. номер: 0604 0194

Мeasuring range short-term to +500°C (Plug-in head, connection cable 0430 0143 or 0430 0145 required) Meas. Range -200 to +300 °C

Pipe wrap probe Type K (NiCr-Ni)

Кат. номер: 0600 4593

For pipes with diameter of up to 2", for flow/return temp. meas. in hydronic systems Meas. Range -60 to +130 °C

Kits

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Basic set testo 312-4

Кат. номер: 0563 1327

Differential pressure gauge testo 312-4 Hose set for testo 312-4 Balloon pump with release screw Conical test plug 1/2″ Conical test plug 3/4″ IR

High-pressure set testo 312-4

Кат. номер: 0563 1328

Differential pressure gauge testo 312-4 Hose set for testo 312-4 Balloon pump with release screw Conical test plug 1/2″ Conical test plug 3/4″ IR

Certificates

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  • +359 2 953 07 96
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