WL101_A8490_en_e specifications.pdf
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- Attached to
- Haenni- Wheel Load Scale WL 101
- Solicitation number
- RFQ - 16A - 24122000000000000135
- Issued by
- Maine
About this file
This document is a technical specification sheet from HAENNI Instruments Inc. for their WL 101 Wheel Load Scale, which is a handmade mechanical scale used for measuring wheel and axle loads of vehicles with pneumatic tires. The scale is certified to OIML R76 class 4 and NIST H44 standards, offering measurement ranges of 0-10t, 0-15t, 0-20,000 lb, or 0-30,000 lb. The device features a platform height of 17mm, operates in temperatures from -20°C to +60°C (0°F to 140°F), and has IP65 water protection rating. The scale is designed to be lightweight at 16kg/35lb for easy transport and requires no ramps for operation.
The technical specifications detail various accuracy classifications based on OIML and NIST standards, with divisions ranging from 50kg to 100lb depending on the model. The active surface area measures 660 x 380mm (26 x 15in) with loading limits of 12.5t for the 10t model and 16t for the 15t model. The scale must be operated on firm and level ground with maximum 10mm bend through and 5% slope (3°). The document includes a selection chart for ordering with specific model codes based on temperature range, standard compliance, and measurement range requirements.
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Other files
| File | Type | Posted |
|---|---|---|
| RFQ 16A 241220-0135 Bid Prices EXCEL Sheet.xlsx | XLSX spreadsheet | |
| RFQ 16A 241220_0135 Haenni Wheel Load Scale.pdf |
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Text version
Wheel Load Scale WL 101
Accessories
For accessories as levelling mats, pads for weighing point loads, carrying cases etc. refer to data sheet A8498.
Operation
Because of its light weight the wheel load scale WL101 is easy to transport and can be used at any time without the need of ramps.
For efficient measurements it is recommended to work with at least two units. Measurements should be made on firm and level ground.
The scale is placed close to in front of the wheel to be tested and the vehicle is driven onto the platform.
The wheel load is indicated directly on the dial of the instrument.
Official Test
In most countries the wheel load scale WL 101 is approved by official test laboratories.
Selection Chart
HAENNI Instruments Inc. Phone +41 (0)31 506 54 00 Fax +41 (0)31 506 54 19
3422 Kirchberg info@haenni-scales.com www.haenni-scales.com
Switzerland
Created: 15.03.2018 Page 1 of 2 A 8490.3
Application
Measurement of wheel and axle loads of vehicles with pneumatic tires
Range 0...10 t
0...15 t
0...20 000 lb
0...30 000 lb
Temperature
Range
-20...+60°C
0...140 °F
Accuracy
OIML No. 76 Class 4 or NIST
H 44, optionally with HAENNI works test report or intended for official test
Execution
Corrosion resistant aluminium-alloys and stainless steel , wa-tertight IP 65
Dial white, black markings, according to OIML o. 76 respectively NIST
H44
Lens Acrylic glass (perspex), un-breakable
Weight 16 kg / 35 lb
Platform height 17 mm / 0.67 in
The traditional one: worldwide unique in its kind.
Every single scale is a handmade masterpiece.
More than 25'000 times proven worldwide.
Maintenance free, mechanical scale for an unbeatable mobility. Certified to OIML R76 class 4 and NIST H44.
Easy to carry due to their light weight and without the need of ramps and connectors.
Ready for use at any time.
Ordering example:
WL 101 / 4 1 1 . 1 1 1 / 10Y /. . .
Temperature range and standard
- 20 . . . + 60°C
OIML No. 76 Cl.4
0 … 140°F
NIST H 44 Cl. 4
4 1 1 . 1 1 1
6 1 1 . 1 1 1
Ranges 0 . . . 10t 10Y
0 . . . 15t 20Y
0...20 000 lb 60Y
0...30 000 lb 70Y
For official test
The ordering code is determined after the approval procedure
1) OIML is the abbreviation for Organisation Internationale de Métrologie Légale. NIST is the abbreviation for National Insti-tute of Standards and Technology (USA)
2) In practical operation the complete surface may be used, because the ground pressure in the marginal area of the tyre foot print does not exceed 6 kg/cm2 .
Wheel Load Scale WL 101
Dimensions
25 kg (up to 2,5 t)
50 kg (2,5 t...10 t)
75 kg (10 t...15 t)
50 lb ( up to 2500 lb)
100 lb ( 2500...10 000 lb)
150 lb (10 000..20 000 lb)
100 lb (up to 5000 lb)
200 lb (5000...20 000 lb)
300 lb (20000..30 000 lb)
50 kg (up to 2,5 t)
100 kg (2,5 t...10 t)
150 kg (10 t...15 t)
100 lb (up to 2500 lb)
200 lb (2500...10 000 lb)
300 lb ( 10 000..20 000 lb)
200 lb (up to 5000 lb)
400 lb (5000...20 000 lb)
600 lb (20 000..30 000 lb)
HAENNI Instruments Inc. Phone +41 (0)31 506 54 00 Fax +41 (0)31 506 54 19
3422 Kirchberg info@haenni-scales.com www.haenni-scales.com
Switzerland
Created: 15.03.2018 Page 2 of 2 A 8490.3
Execution OIML 1)
NIST 1)
Standard OIML No. 76 Class 4 NIST H 44 Class 4
Range 0...10 t, 0...15 t 0...20000lb 0...30000 lb
Division 50 kg 50 lb 100 lb
Accuracy on calibration in operation
Loading limit 0...10 t: 12,5 t
0...15 t: 16 t 22 000 lb 33 000 lb
Permissible limit per area 0...10 t: 12 kg/m2 0...15 t: 15 kg/m2
170 lb/in2 210 lb/in2
Loading limit per area 0...10 t: 24 kg/m2 0...15 t: 30 kg/m2
340 lb/in2 430 lb/in2
Temperature in operation range storage
-20°C .... +60°C -30°C .... +60°C
0 °F .... 140 °F -20 °F .... 140 °F
Type of protection IP 65
Operating site Firm and level ground, max. 10 mm bend through, max. 5% slope ( 3°)
Dimensions platform height
17 mm 0.67 in active surface 660 x 380 mm (12 kg/cm2)2)
660 x 393 mm (6 kg/cm2)2)
26 x 15 in (170 lb /in2) 2)
26 x 15.5 in (80 lb / in2) 2) 26 x 15 in (210 lb /in2)2)
26 x 15.5 in (100 lb / in2)2) overall size ca. 960 x 77 x 393 mm ca. 38 x 3 x 15.5 in
Technical data
File details come from the government source that posted it. Updated .