This deadweight tester is a robust and flexible pressure measurement instrument with high accuracy, available in two pressure ranges.
Accurate and stable pressure measurement in a low measuring range.
The operating principle of the MNR-700-VLP is based on the dynamic interaction between a flow of gas and a non-cylindrical piston. The diagram shows piston (1) coaxially located in the cylinder (2) transforming force (mg) into pneumatic pressure (P). The inclusion of the insert (3) and the two volumes (5 & 6) assures dynamic stability. The high accuracy of the MNR-700-VLP is provided by the two cascade regulators (4) which also isolate the output pressure from supply pressure fluctuations. When air is passing between the piston and cylinder a reactive feedback force is generated. This force does not exceed 0,0015 mg which is sufficient to self-centre the piston.
|MNR-700-VLP-25kPa||0,02 – 25 kPa (gauge) or 0,005 – 25 kPa (differential)|
|MNR-700-VLP-40kPa||0,02 – 40 kPa (gauge) or 0.005 – 40 kPa (differential)|
|Accuracy||0,02% Reading, optional ; 0,015% Reading *1|
|Operating temperature||15 to 35 °C|
|Operating atmospheric pressure||85 -110 kPa abs|
|Operating humidity range||30 to 80 % RH|
|External air supply||300-400 kPa|
Setting internal pressure regulator
|150 +/- 7,5 kPa|
|External air supply quality||Dry clean air, purity class 1-2-1 (ISO 8573-1)|
|Dimensions calibrator||390 x 310 x 240 mm (l x w x h)|
|Dimensions case for piston, mass set & accesoiries||390 x 310 x 147 mm (l x w x h)|
|Weight calibrator||13,5 kg
|Weight case for piston, mass set & accesoiries||5,3 kg|
|Ordering code 25 kPa||MNR-700-VLP-25kPa-D|
|Ordering code 40 kPa||MNR-700-VLP-40kPa-D|
*1 Note: reference parameters for defined specification:
- Temperature: 20 +/- 1 Deg.C.
- Atmospheric pressure: 101,325 +/- 3 kPa
- Humidity: 50 +/- 20%