Viet Nam (VN)English (UK)
Sale
Bàn kiểm chuẩn áp suất LR-Cal LDW-HK
zoom Xem ảnh lớn

Bàn kiểm chuẩn áp suất LR-Cal LDW-HK (Mã: LDW-HK)

Giá: Liên hệ
Nhà sản xuất: LR-CAL

Đặt hàng qua điện thoại

+(84) 4 6261 5111

+(84) 4 6261 4111

Phương thức thanh toán
Cách vận chuyển hàng
Chính sách đổi trả hàng

Deadweight Tester / Pressure Balance
Compact Design

Model LR-Cal LDW-HK

Deadweight Tester (Pressure Balance, Primary Standard for Pressure), hydraulic,
pressure ranges from 1...120 bar to 10...1,200 bar and 10...1,600 psi to 100...16,000 psi.
Accuracy (total uncertainty): ±0.05% or 0.025% of measured value.

 

Anwendungen:

 

  • Primary standard for defining the pressure scale in a range up to 1,200 bar hydraulic
  • Reference instrument for factory and calibration laboratories 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 0.025% of measured value
  • Factory calibration includes traceability to national standard; with UKAS calibration possible as an option
  • High long-term stability with recommended recalibration cycle every five years
  • Masses manufactured from stainless steel, can be adjusted to local gravity
  • Compact dimensions

Technical data of LR-Cal LDW-HK piston-cylinder system

 

Pressure range "bar" 1)

[bar]

1...120

2.5...300

5...700

10...1,200

Required masses

[kg]

41

50

58

50

Smallest step 2)
standard mass set

[bar]

1

2,5

5

10

Nominal cross-sectional area
of the piston

[in²]

1/16

1/40

1/80

1/160

Pressure range "psi" 1)

[psi]

10...1,600

25...4,000

50...10,000

100...16,000

Erforderliche Massen

[kg]

38

47

58

47

Smallest step 2)
standard mass set

[psi]

10

25

50

100

Nominal cross-sectional area
of the piston

[in²]

1/16

1/40

1/80

1/160

Accuracy

Standard 3)

[% of
measured
value]

0,05

Option 3)

[% of
measured
value]

0,025

Pressure transmission medium

Hydraulic fluid based on VG22 mineral oil (0.5 l included in scope of delivery)

Material

Piston

 Tungsten carbide

Cylinder

 Tungsten carbide

Set of masses

Stainless steel, non-magnetic

Weight

Piston-cylinder system

[kg]

2.4

"bar"-mass set, incl. bell jar

[kg]

41.5

50.5

58.5

50.5

"psi"-mass set, incl. bell jar

[kg]

47.5

47.5

58.5

47.5

Optional carrying case for set
of masses (2 pcs. required)

[kg]

5.8

Dimensions

Optional carrying case for set
of masses (2 pcs. required)

[mm]

W 400 x D 310 x H 310

Ø      Theoretical starting value; corresponds to the pressure value generated by the piston or the piston and its make-up weights (bei their own weight). To optimize the operating characteristics more weights should be loaded.

Ø      The smallest pressure change value that can be achieved based on the standard weight set. To reduce this, a set of trim masses is also available.

Ø      The accuracy from 10% of the measuring range is based on the measured value. In the lower range, a fixed error based on 10% of the range applies.

Ø      Measuring uncertainty assuming reference conditions (ambient temperature 20°C, air pressure 1,013 mbar, relative humidity 40%). For operation without an Intelligent Calibration Module LR Cal IKM corrections must be made if required.

 

Technical Date for LR-Cal LDW-HK instrument base

 

Connection for piston-cylinder system:

 

3/4" BSP male

Test item connection:

 

1/2" BSP female thread, free-running, incl. adapter set to 1/4" BSP and 3/8" BSP female threads

Wetted parts:

 

Austenitic stainless steel, high tensile brass, nitrile rubber

Pressure transmission medium:

 

Hydraulic fluid based on VG22 mineral oil (0.5 l included in scope of delivery)

Reservoir volume:

[cm³]

170

Weight instrument base:

[kg]

13.5

Weight optional storage case for the base:

[kg]

8.5

Permissible operating temperature:

[°C]

18...28

Dimensions of the base:

[mm]

W 401 x D 397 x H 155

 

Approvals and certificates

  • CE-Conformity: Pressure equipment directive 97/23/EC (Module A)
  • Factory certificate of calibration traceable to national standard
  • Optional UKAS-certification

Scope of delivery and Options

Scope of Delivery:

  • Base, with adjustable feet
  • Dual-area spindle pump for filling, pressure generation and fine adjustment
  • Piston connection with 3/4" BSP male thread
  • Test item connection with 1/2" BSP female thread, loose union connection
  • Adapter set for test item connection, 1/2" BSP male to 1/4" BSP female and to 3/8" BSP female
  • Piston-cylinder system with overhang (bell jar)
  • Set of masses manufactured to standard gravity (9.80665 m/s²)
  • Tool and maintenance set
  • Manual in English and German language
  • Factory calibration certificate, traceable to national standard

Options:

  • System with increased accuracy to 0.025%
  • Set of masses manufactured to local gravity
  • Storage cases for the base, mass set and the piston-cylinder system
  • UKAS calibration certificate

Accessories for model LR-Cal LDW-HK

 

Order-Code

Description

LDW-FMS-F1

The weights included in the standard mass set are ideally suited for everyday use.
If smaller intermediate values need to be generated, we recommend using a set of trim masses.

Set of trim masses, 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

LDW-FMS-M1

Set of trim masses, 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

LDW-HK-KOFFER-MS

Set of 2 carrying cases for set of masses

LDW-HK-KOFFER-BM

Storage case for instrument base

LDW-ADAPTER-BSP

"BSP" adapter set for 1/2" BSP male test item connector to
1/8" BSP, 1/4" BSP, 3/8" BSP and 1/2" BSP female

LDW-ADAPTER-NPT

"NPT" adapter set for 1/2" BSP male test item connector to
1/8" NPT, 1/4" NPT, 3/8" NPT and 1/2" NPT female

LDW-ADAPTER-M

"Metric" adapter set for 1/2" BSP male test item connector to
M12 x 1.5 and M20 x 1.5 female

LDW-PAS-G12

Test item connection, 3/4" BSP female to 1/2" BSP female, loose union connection,
to use the deadweight tester as pressure comparator with 2 test item connectors

CPB5000-WA90

90° angle connection, for test items with back mounting connection

LDW-TV-M-0700

Separator, to separate 2 liquid media by a diaphragm, max. 700 bar

LDW-TV-M-1200

Separator, to separate 2 liquid media by a diaphragm, max. 1,200 bar

LDW-HK-R-SET

Sealing set for instrument base

CPB5000-FLUID

Operating fluid (mineral oil based hydraulic oil, 1 liter)

LDW-HK-W-SET

SPARE: tool set consists of open-ended spanner, BSP adapter, replacement seals, pointer removal device and pointer press-on tool