LR-Cal LPP 10
Pressure test pump
Manual test pressure generation -0,85...+10 bar


- Portable
- Pneumatic (with ambient air)
- Test pressure generation up to 10 bar (145 psi), switchable to
- Vacuum generation up to -0.85 bar (-25 inHg)
- Simple generation, precise fine pressure adjustment
Application + Description
LR-Cal LPP 10 Application + Description
The LR-Cal LPP 10 handheld pressure test pump (also known as a calibration test pump, calibration pump, or hand pump) is a pneumatic test pressure source for positive pressure up to 10 bar (145 psi) and vacuum (negative pressure) down to -0.85 bar (-25 inHg). It is used to test, adjust, and calibrate electronic and mechanical pressure measuring devices (pressure transducers, transmitters, pressure gauges, pressure switches) through comparative measurement. The operating medium is ambient air. Tests can be performed on-site at the measuring location or in a stationary setup in a laboratory or workshop.
Procedure for a Comparison Measurement
- The reference pressure gauge is attached to one of the two standard pressure hoses (each 0.5 m long), tightened by hand without tools. LR-Cal pressure calibrators (and digital pressure gauges) or analog reference pressure gauges (see Accessories: LPP-MANO) are suitable as references.
- The device under test is attached to the other pressure hose, hand-tight and without tools. Adapter sets (BSP, NPT, metric) are available as accessories for other thread types. This creates a closed-loop calibration circuit with a low volume.
- When the pump is activated, the same pressure acts on both the reference pressure gauge and the test specimen. The pump generates the pressure. By switching modes, the LR-Cal LPP 10 also generates a vacuum.
- The user sets the desired test pressure using the fine-adjustment valve (volume variator). It alters the volume of the calibration loop only slightly, allowing for precise pressure adjustment. The Volumentool accessory (LPP-VOLUMEN-TOOL) further facilitates fine-tuning of the test pressure.
The LR-Cal LPP 10 is compact (approx. 173 x 100 x 58 mm) and lightweight (approx. 697 g, excluding hoses; see data sheet). The included operating instructions describe the exact procedure for use.
Specification
LR-Cal LPP 10 specification
| Description | Value |
|---|---|
| Pressure generation: | 0 to 10 bar = 0 to 145 psi, switchable to |
| Vacuum generation: | 0 to -0.85 bar = 0 to -25 inHg |
| Pressure ports (standard version): |
For reference pressure measuring instrument: 1/2" BSM female, with o-ring, via hose and t-piece For unit under test: 1/4" female, with o-ring, via hose and t-piece |
| Medium: | Ambient air |
| Priming pressure: | Ram |
| High pressure: | Volume adjustment valve |
| Fine pressure adjustment: | Volume adjustment valve (very sensitive) |
| Volume per stroke: | approx. 0.038 cm³ |
| Dimensions: | 172 x 100 x 58 mm (without connection pieces and hoses) |
| Weight: | approx. 697 g (without connection pieces and hoses) |
| Order-Code: | LPP-10 |
Volume per stroke at the hand knob: approx. 0.038 cm³.
OEM version without any accessories: Order-code LPP-10-PUMPE
Scope of delivery
LR-Cal LPP 10 scope of delivery
- Pressure test pump LR-Cal LPP 10
- T-connector, on one side for direct mounting on the LR-Cal LPP 10, on the other two sides with "push & pull" easy plug-in and pull-off hose connections for hose 4 x 2.5 mm. Easy sealing of test specimen and reference due to inserted O-ring (tightening torque max. 15 Nm).
- 2 pieces pneumatic hose lines 4 x 2.5 mm, length 0.5 meter each
- 2 "Push & Pull" quick connectors with 1/8" BSP male thread
- 1 thread adapter 1/8" BSP female x 1/2" BSP female to accommodate the reference pressure gauge / calibrator (with 1/2" BSP male thread). Due to inserted O-ring simple sealing by hand-tightening (max. 15 Nm).
- 1 thread adapter 1/8" BSP female x 1/4" BSP female to accommodate the test specimen (with 1/4" BSP male thread). Due to inserted O-ring simple sealing by hand-tightening (max. 15 Nm).
- Operating manual (DE+EN)
LR-Cal LPP 10 accessories + spare parts
Transport and storagecase

Accessory:
Rigid transport and storage case with molded foam insert
Maintenance kit
for LR-Cal LPP 10

Accessory:
Maintenance kit (gaskets, O-rings, etc.)
Pneumatic hose4 x 2,5 mm per meter

Accessory:
Pneumatic hose 4 x 2,5 mm
by the meter
Set of thread adapterBSP

Accessory:
Set of BSP thread adapter and set of O-ring seals for test piece connection
- 1/4" BSP m x 1/8" BSP female
- 1/4" BSP m x 3/8" BSP female
- 1/4" BSP m x 1/2" BSP female
- 1/4" BSP m x 1/2" BSP male
O-ring sealsfor BSP adapter

Accessory:
Spare part for BSP thread adapter set order-code LPP-ADAPTER-BSP:
Set of O-rings
Set of thread adapterNPT (self-sealing)

Accessory:
Set of thread adapters NPT thread and set of O-ring seals for test item connection
- 1/4" BSP m, x 1/8" NPT female
- 1/4" BSP m x 1/4" NPT female
- 1/4" BSP m x 3/8" NPT female
- 1/4" BSP m x 1/2" NPT female
Set of thread adaptermetric + "Minimess"

Accessory:
Thread adapter set metric, set of O-ring seals and "Minimess® 1620" for test piece connection
- 1/4" BSP m x M 12 x 1,5 female
- 1/4" BSP m x M 20 x 1,5 female
- 1/4" BSP m x Minimess® 1620 female
Hose adapterfrom 6 mm to 4 mm

Accessory:
Pneumatic hose adapter from 6 mm outer diameter to 4 mm outer diameter
Pressure port adapterfor LR-Cal Serie 3000

Accessory:
Pressure connection adapter to connect digital hand pressure gauge LR-Cal Series 3000 to calibration hand test pump LR-Cal LPP 10
T-AnschlussstückPush & Pull

Spare part:
T-connection piece, 1/8" BSP male for direct mounting to LR-Cal LPP 10 and 2 plug-in hose connections for 4 x 2.5 mm
Hose quick connectorPush & Pull

Spare part:
Push & Pull hose quick connector
for hose 4 x 2.5 mm
Pneumatic hose setwith 2 pieces

Spare part:
Set of 2 pieces pneumatic hose 4 x 2.5 mm, length 0.5 meters each
Thread adapter 1/2" BSPfor reference port

Spare part:
Thread adapter 1/2" BSP female for reference port at code LPP-10-PN-STECK
Set of O-ringsfor 1/2" BSP adapter

Spare part:
Set of 10 O-rings 14 x 3.5
made of NBR 70 shore
for 1/2" BSP connection
at code LPP-10-ADAPT-G12
Thread adapter 1/4" BSPfor test port

Spare part:
Thread adapter 1/4" BSP female for test item port at code LPP-10-PN-STECK
Set of O-ringsfor 1/4" adapter

Spare part:
Set of 10 O-rings 8 x 2,5
made of NBR 70 shore
for 1/4" BSP connection
at code LPP-10-ADAPT-G14
Fine adjustment andrelief valve

Spare part:
Assembly
Fine adjustment and pressure relief valve




