Thông tin sản phẩm
Deadweight Tester
Pressure Balance
Model LR-Cal LDW-H
Deadweight Tester (Pressure Balance, Primary Standard for Pressure), single-piston and double-piston versions, hydraulic, pressure ranges from 1...120 bar to 1...1,400 bar and 10...1,600 psi to 10...20,000 psi.
Accuracy (measurement uncertainty) to ±0.006% or to ±0.015% vom Messwert.
Applications:
- Primary standard for defining the pressure scale in a range up to 1,400 bar hydraulic
- Reference instrument for calibration laboratories and factory for the testing, adjustment and calibration of pressure measuring instruments
- Complete, stand-alone system, also suitable for on-site use
Special features:
- Total measurement uncertainty to 0.006% of measured value
- Dual-range piston-cylinder system with fully automated changing between ranges
- Factory calibration includes traceability to national standards, as standard. Optional with UKAS or DKD/DAkkS calibration
- High long-term stability with recommended recalibration cycle every 5 years
- Fast and safe replacement of the piston-cylinder system via quick-release system as an option
Thông số kỹ thuật
Technical data for basement model LR-Cal LDW-H
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Base version
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Hydraulic, standard, LR-CalLDW-H-S
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up to a max. 1,200 bar / 16,000 psi; with internal pressure generation
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Hydraulic, high-pressure, LR-Cal LDW-H-H
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up to a max. 1,400 bar / 20,000 psi; with internal pressure generation
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Pressure transmission medium
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Standard
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Hydraulic fluid based on mineral oil
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Optional
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Sebacate oil, Brake fluid, Skydrol, Fomblin oil or Water (dependant upon measuring range)
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Fluid reservoir
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cm³
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250
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Connections
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Connection for piston-cylinder system
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3/4" BSP male; optional: quick-release connector (not for 1,400 bar version)
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Test item connector
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1/2" BSP female quick connector as standard, freely rotating, changeable
(for other threaded inserts, see accessories)
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Material
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Piping in instrument base
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Stainless steel 1.4404, 6 x 2 mm
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Weight
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Base"standard", LR-Cal LDW-H-S
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kg
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18.0 (19.0 with optional quick-release connector)
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Base "high-pressure", LR-CalLDW-H-H
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kg
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18.0
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Optional storage case for basement
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kg
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8.5
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Permissible ambient conditions
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Operating temperature
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°C
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18...28
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Dimensions
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Base (both versions)
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mm
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W 400 x D 375 x H 265
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Approvals and certificates for model LR-Cal LDW-H
- CE-Conformity: Pressure equipment directive 97/23/EC (Module A)
- Calibration: factory certificate of calibration, traceable
- Optional UKAS- (DKD-/DAkkS-) certification
Scope of delivery and Options LR-Cal LDW-H
Scope of delivery:
- Base with adjustable feet
- Priming pump
- Spindle pump for pressure generation and fine adjustment
- Piston connection with 3/4" BSP male thread
- Quick connector for test items with 1/2" BSP female threaded insert, changeable
- Piston-cylinder system
- Standard mass sets in carrying case
- Set of masses manufactured to standard gravity (9.80665 m/s²)
- Mineral oil bases hydraulic fluid (1.0 litre)
- Manual in English and German language
- Factory calibration certificate, traceable to national standards
Options:
- Other pressure transmission media
- Piston connection with quick-release connector
- System with increased accuracy to 0.006%
- Other pressure units
- Set of masses manufactured to local gravity
- Fine increment weights
- Storage case for the base and the piston-cylinder system
- DKD/DAkkS or UKAS calibration certificate
Tùy chọn phụ kiện
Accessories for model LR-Cal LDW-H
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Order-Code
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Description
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LDW-FMS-F1
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The weights included in the standard mass set or fine inrement weights are ideally suited for every day use. If smaller intermediate values need to be generated, we recommend using a set of trim masses.
Trim mass set, class F1
(1 x 50 g, 2 x 20 g, 1 x 10 g, 1 x 5 g, 2 x 2 g, 1 x 1 g,
1 x 500 mg, 2 x 200 mg, 1 x 100 mg, 1 x 50 mg,
2 x 20 mg, 1 x 10 mg, 1 x 5 mg, 2 x 2 mg, 1 x 1 mg
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LDW-FMS-M1
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Trim mas set, class M1
(1 x 50 g, 2 x 20 g, 1 x 10 g, 1 x 5 g, 2 x 2 g, 1 x 1 g,
1 x 500 mg, 2 x 200 mg, 1 x 100 mg, 1 x 50 mg,
2 x 20 mg, 1 x 10 mg, 1 x 5 mg, 2 x 2 mg, 1 x 1 mg
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CPB5000-ADS
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As a standard, the deadweight tester / pressure balance is equipped with a quick connector for connecting the test item. For this purpose, various threaded adapters, which can be easily changed, are available:
Adapter set: 1/4" BSP, 3/8" BSP, 1/2" NPT and M20 x1.5
Additionally the sets of adapters include spare O-rings as well as a spanner with SW32 flats and SW14 flats, for changing the adapters.
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CPB5000-ADS-NPT
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Adapter set "NPT": 1/8" NPT, 1/4" NPT, 3/8" NPT and 1/2" NPT
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LDW-PAS-G12
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Test item connecting piece, 3/4" BSP female to 1/2" BSP female, free-rotating, operation as a comparison test pump is possible (---> base unit with 2 test item connectors)
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CPB5000-WA90
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90° angle connection, for test items with back mounting connection
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CPB5000-TV-1000
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Separator (without diaphragm), max. 1,000 bar
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LDW-TV-M-0700
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Separator (to separate 2 liquid media by diaphragm), max. 700 bar
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LDW-TV-M-1200
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Separator (to separate 2 liquid media by diaphragm), max. 1,200 bar
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CPB5000-R-SET
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O-ring set consisting of 5 pcs. 8 x 2 and 5 pcs. 4 x 2.2 (for piston connector and test item connector)
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CPB5000-FLUID
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Special operating fluid: hydraulic fluid based on mineral oil
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LDW-H-KA
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Adapter for mounting piston-cylinder system into a quick-release mechanism
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LDW-PAS-G12-CT
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Special test-item adapter with quick connect, for the matching to the quick-release system, operation as a comparison test pump possible
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LDW-H-E-230
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Electrical piston drive unit for 700 bar, 1,200 bar and 1,400 bar measuring ranges (230 VAC / 50 Hz)
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