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IMG-LPP08

LTR LR-Cal LPP 08

sku Product SKU:  LTR-LPP08

The pressure test pump LR-Cal LPP 08 is used to generate pressure and vacuum for checking, adjusting and calibrating mechanical and electronic pressure measuring instruments by comparative measurements in the low-pressure and vacuum range. The pressure tests may be carried out in laboratories, workshops or on-site at the measuring point.

If the instrument to be tested and a sufficiently accurate reference measuring instrument are connected up to the pressure test pump, the same pressure is applied to the two measuring instruments when the pump is operated. By comparing the two measure values at random pressure values, the accuracy can be verified or the unit under test can be adjusted.

The LR-Cal LPP 08 is a pneumatic pressure test pump for low-pressure ranges up to 8 bar with a change-over switch to vacuum down to -850 mbar. Despite its compact dimensions, the pressure test pump is easy to operate and allows for the exact generation of the required test pressures. The maximum pressure or vacuum achievable depends on the attached test volume. The smooth-running pressure generation and the integrated fine adjustment valve allow a safe and precise setting of very small positive resp. negative pressure values in the range of mbar.

The unit under test and the reference instrument can be easily connected with the supplied accessories.

Included in the scope of standard delivery:

  • Pressure test pump LR-Cal LPP 08
  • T-piece, one side with 1/8" BSP male thread for direct mounting to the pressure test pump, other sides with quick hose connectors (Push&Pull) for pneumatic hose 4 x 2 mm. Easy mounting thanks to supplied o-ring. Max. torque 15 Nm.
  • 2 pcs. pneumatic hose 4 x 2 mm, each length 0.5 m
  • 2 pcs. quick connectors (Push&Pull) with 1/8" BSP male thread, for hose 4 x 2 mm
  • 1 Adapter 1/8" BSP female x 1/2" BSP female, for connecting reference instrument (with 1/2" BSP male thread)
    Thanks to integrated o-ring tightening without tools, just by hand
  • 1 Adapter 1/8" BSP female x 1/4" BSP female, for connecting unit under test (with 1/4" BSP male thread)
    Thanks to integrated o-ring tightening without tools, just by hand
  • Operating manual

ZAR 0,0000

IMG-LR-CAL-LDW-P

LTR LR-Cal LDW-P

sku Product SKU:  LTR-LDW-P

Proven primary
pressure standard
Deadweight Tester / Pressure Balances are the most accurate instrument available on the market for the calibration of electronic or mechanical pressure measuring instruments. The direct measurement of the pressure (p = F / A), as well as the use of high-quality materials enable a very small measurement uncertainty, in conjunction with an excellent long-term stability of 5 years (recommended in accordance with German Calibration Service DAkkS).
The deadweight tester / pressure balance has therefore been used for years in factory and calibration laboratories in national institutes, research laboratories and in industry.

Stand-alone operation
Due to its integrated pressure generation and the pure mechanical measuring principle, the model LR-Cal LDW-P is ideal for on-site use for maintenance and service.

Basic principle
Pressure is defined as the quotient of force and area. The core component of the model LR-Cal LDW-P is therefore a very pecisely manufatured piston-cylinder-system, which is loaded with masses in order to generate the individual test points.
The masses applied are proportional to the target pressure and this is achieved through optimally graduated weights. As standard, these masses are manufactured to the standard gravity (9.80665 m/s²), though the can be manufactured to a specific location (gravity) and also DAkkS-calibrated.

Easy operation
Depending on the instrument version the pressure is set via an integrated pump or via an external pressure supply by the use of control valves. For fine adjustment a very precisely adjustable spindle pump with a precision spindle running only within the pump body is mounted.
As soon as the measuring system reaches equilibrium, there is a balance of forces between the pressure and the mass load applied. The excellent quality of the system ensures that this pressure remains stable over several minutes, so that the pressure value for comparative measurements can be read without any problems, or also so that more complex adjustments can be carried out on the item under test.

ZAR 0,0000


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