LR-Cal LPP 700
Pressure test pump
Manual test pressure generation up to 700 bar


- Portable
- Hydraulic (with oil or water)
- Test pressure generation up to 700 bar (10,150 psi)
- Simple generation, precise fine pressure adjustment
Application + Description
LR-Cal LPP 700 Application + Description
The LR-Cal LPP 700 handheld pressure test pump (also known as a calibration test pump, calibration pump, or hand pump) is a hydraulic test pressure source for overpressure up to 700 bar (10,150 psi). 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 oil or water. Tests can be performed on-site at the measurement location or in a stationary setup in a laboratory or workshop.
Procedure for a Comparative Measurement
- The reference pressure gauge is mounted directly on top of the pump (hand-tight, without tools and without additional seals). LR-Cal pressure calibrators (and digital pressure gauges) or analog reference pressure gauges (see Accessories: LPP-MANO) are suitable as references.
- The test unit is attached to the open end of the standard hydraulic hose (length 1 m, M16x20), 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.
- Set the pre-pressure/high-pressure selector switch to “Pre-pressure.” When the pump is actuated via the hand lever, the same pressure acts on both the reference gauge and the test specimen. Next, set the pre-pressure/high-pressure selector switch to “High pressure”; the hand lever now generates the high pressure.
- The user sets the desired test pressure using the fine-adjustment valve (volume variator). It changes the volume of the calibration circuit only slightly, allowing the pressure to be finely adjusted.
Specification
LR-Cal LPP 700 specification
| Description | Value |
|---|---|
| Pressure generation: | 0 to 700 bar = 0 to 10,152 psi |
| Pressure ports (standard version): |
For reference pressure instrument (on the top of the pump): 1/2" BSP female (freely rotating), with integr. O-ring For test item (at the test hose): 1/4" BSP female (freely rotating), with integr. O-ring This connection is made via an adapter, at the pump is a MINIMESS 1620 port. |
| Materials: | Aluminium, brass, ABS, Plexiglas, NBR |
| Priming pressure: | Hand lever |
| High pressure: | Switch-over knob, reduced lever stroke |
| Pressure fine adjustment: | Fine volume adjuster (with large volume) |
| Operating media: | Mineral oil based hydraulic fluid or destilled water |
| Fluid reservoir: | Volume > 200 cm³, can be filled during stroking |
| Dimensions: | approx. 270 x 160 x 120 mm (without test hose) |
| Weight: | approx. 1.3 kg (without test hose) |
| Order-Code: | LPP-700 |
Scope of standard supply
LR-Cal LPP 700 scope of standard supply
- Pressure test pump LR-Cal LPP 700 with reference instrument connection 1/2" BSP female (free running) on top of the pump and with test item connection 1/4" BSP female (free running) on the test item connection hose.
- Test piece connection hose, length 1.0 meter (system "MINIMESS® 1620")
- Operating manual DE+EN
LR-Cal LPP 700 accessories + spare parts
Transport and storagecase

Accessory:
Rigid transport and storage case with molded foam insert
Hydraulic oil for LR-Cal LPP 700/1000

Zubehör:
Acid free hydraulic oil
Bottle with 1 l capacity
Suitable for hydraulic calibration hand test pumps
Set of thread adapterBSP

Accessory:
Set of BSP thread adapter incl. set of suitable O-ring seals for test item port of the pump
- 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 seals forBSP adapter

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

Accessory:
Set of NPT adapter incl. suitable O-ring seals for test item port of the pump
- 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:
Set of metric adapter and "Minimess® 1620" for test item port of the pump
- 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
Reference gauge DS 100Accuracy ±0.6% FS

Accessory:
Analog reference pressure gauge
DS 100, accuracy ±0.6 FS
LPP-MANO-0060: 0...60 bar/psi
LPP-MANO-0100: 0...100 bar/psi
LPP-MANO-0160: 0...160 bar/psi
LPP-MANO-0250: 0...250 bar/psi
LPP-MANO-0400: 0...400 bar/psi
LPP-MANO-0600: 0...600 bar/psi
LPP-MANO-1000: 0...1000 bar/psi
Maintenance kitfor LR-Cal LPP 700

Spare part:
Maintenance kit for LR-Cal LPP 700
with O-rings, screw and seals
Coupling 1620for connection to pump

Spare part:
Assembly
Measuring coupling
MINIMESS® 1620" system
for connection to the side of the pressure test pump
Pressure test hosewith MINIMESS® port

Spare part:
Assembly
Pressure test hose (max. +70°C)
System "MINIMESS® 1620"
The following lengths are available:
MMS-M16X2-1-0: length 1.0 meter
MMS-M16X2-2-0: length 2.0 meter
MMS-M16X2-3-2: length 3.2 meter
MMS-M16X2-4-0: length 4.0 meter
Test item connection1/4" BSP female

Spare part:
Assembly
Test piece connection
System "MINIMESS® 1620
with 1/4" BSP free running female thread
(manometer bulkhead fitting)

