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Product Features
- 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 in heating systems
- system case
Delivery options
At Cadmus Products we aim to deliver orders efficiently and at highly competitive rates.
- We can ship consignments of all shapes and sizes and hazardous content across the UK and worldwide. Most of our orders are sent via DHL, however sometimes we may use other couriers.
- If you are purchasing a laboratory product online you can find out the price of shipping checkout. If you are obtaining a quote for a product, then we will email you
with our best shipping prices along with your quote. - Please see our delivery page for full information
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.
- 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 our high-pressure probe (can be ordered as an option)
- Pressure testing on drinking water pipes using water and with the support of the optional 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 our high-pressure probe (can be ordered as an option)
- 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
| 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) * |
*Accuracy information applies only to instrument without probes connected
| 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 |
Weight |
600 g |
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