B10-111 Operating Instructions Hand Test Pump BHP 40 08/24 Contents Information on This Operating Instruction Information on This Operating Instruction • The manual is aimed at specialists and semi-skilled 1.1 Pictographs Used personnel. 1.2 Exclusion of Liability • Please read the instructions carefully before carry- Safety Instructions ing out any operation and keep the specified order.
Qualified personnel: instructions that have to be strictly observed. The personnel that is charged for the installation and operation of the BHP 40 must hold a relevant qualifi- cation. This can be based on training or relevant tui- Exclusion of Liability tion.
This en- sures that no pressure can be generated by unin- The hand test pump BHP 40 shall only be used for tentional pumping movements. pressure or vacuum generation in air. The use of oth- •...
Operating Instructions Hand Test Pump BHP 40 Design and Function The generated pressure or vacuum is indicated on the reference gauge and compared with the meas- Controls: ured value of the test item. Handles With the knurled nut , the spring preload can be ad- Fine adjustment valve (handwheel) justed and the pump stroke can be limited.
Operating Instructions Hand Test Pump BHP 40 Operation CAUTION! Material damage test item! Observe the maximum pressure of the The generation of pressure and the generation of vac- test item! Only generate an initial pressure uum do not only differ concerning operation proce-...
Operating Instructions Hand Test Pump BHP 40 Operation steps pressure generation: Æ Generate vacuum: Æ If necessary, switch on the reference gauge and • Push the handles together: the test item. The spring generates the first negative pres- Æ Close the pressure relief valve: sure, but cannot open the handles completely.
Operating Instructions Hand Test Pump BHP 40 Practical / Useful Advices Relieving Pressure / Balancing Vacuum Once the pressure or vacuum measurements have Spring preload / stroke limitation: been completed, the positive or the negative pres- The spring preload changes the restoring force of the sure in the hand test pump, the test item and in the handles.
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