Positive pressure

( 0 ~ 2.5)MPa ; ( 0 ~ 4 )MPa ; ( 0 ~ 6 )MPa;

Negative pressure

(-0.098~0)MPa (under standard atmospheric pressure )

Stability

0.05% F·S

Overall Dimensions(L×W×H)

320×120×110

Weight

8㎏

HS703 Pneumatic Pressure Comparison Pump is portable structure and designed to generate pressure from vacuum to 60bar. Built-in filter protects the pump from dirty and make maintenance easy and convenient. The F-adjust valve could accomplish 10Pa (0.1mbar) pressure resolution. Especially the lever lead screw design makes user operate in economize labor. the design of reverse valve makes the switch of vacuum and positive pressure more smooth. Two standard pressure outputs are easy to connect gauges under test without using the wrenches. It widely calibrates pressure instruments in field and laboratory.

Technical Specification
 1. Generated pressure range: (-0.95~40)bar The model HS703
                                           (-0.95~60)bar The model HS703-1
2. Working media: Air
3. Adjust resolution: 10Pa(0.1mbar)
4. Material: Body: Stainless steel /Aluminium
                 Seals:Buna-N
5. Output interface connection:  M20×1.5Female
6. Weight:2.7kg
7. Dimensions:286L×198W×140H (mm)

Functions 
HS703 provides pressure measurement for calibrating pressure instruments in field and laboratory. It can be extensively used in power, chemical, petrol, metallurgy, metering, military industry, etc.

Characteristics 
1. portable structure
2. Built-in filter protects the pump from dirty and make maintenance easy and convenient
3. user operate in economize labor