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Schenck Process / Weighbeam DWB 40 t ... 200 t

Schenck Process / Weighbeam DWB 40 t … 200 t

NEW

  • Improved Combined Error: ±0.07 %
  • Improved TKC Error: ±0.03 % / 10 K

FURTHER FEATURES

  • Six-wire circuit
  • Service temperature up to 150 °C
  • Integrated sensor for temperature monitoring
  • Separate mounting of connecting cable through connector
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설명

Weighbeam DWB 40 t … 200 t

APPLICATION

  • Ladle turret scales
  • Ladle ferries
  • Scrap bucket, roller table weighing, and tundish scales
  • Silo and hopper scales

CONSTRUCTION

  • Compact, flat design
  • From 50 t: Locating head for form-locking absorption of side forces
  • Plug-in connector

FUNCTION

  • Simple and economical installation through direct screwing to the connecting structure without movable parts
  • No need for additional tie-rods and hold-downs
  • Virtually impervious to shock loads and unavoidable side forces
  • Suitable for the construction of maintenance-free scales in severe environments
  • Minimal measurement value reaction on high interferential forces and moments
  • High long-term stability
  • High degree of repeatability
  • Separate mounting of weighbeam and connecting cable possible
  • Easy cable exchange

Operating principle

Technical Data

    DWB 40 t DWB 50 t DWB 100 t DWB 150 t DWB 200 t Refer- ence
Rated capacity Emax 40 t 50 t 100 t 150 t 200 t  
Limit load (with Lq = 0.15 x Ln)

Limit load = Maximum admissible load

 LI 100 t 120 t 210 t 290 t 360 t  
Rupture load (with Lq = 0.15 x Ln) Ld 160 t 200 t 350 t 480 t 600 t  
Max. admissible side load Lqmax 40 t 50 t 85 t 120 t 150 t  
Sensitivity Cn 0.95 mV / V 1.08 mV / V 1.38 mV / V 1.57 mV / V 1.63 mV / V Emax
Combined error Fcomb +0.1 % +0.07 % Cn
Creeping under load (30 min) Fcr +0.05 % Cn
Input resistance Re 690 W + 6 W Tr
Output resistance Ra 700 W + 4 W Tr
Reference supply voltage Usref 10 V  
Max. supply voltage Usmax 36 V  
Nominal temperature range Btn -10 °C bis +100 °C  
Service temperature range Btu -15 °C bis +150 °C  
Reference temperature Tr +22 °C  
Storage temperature range Bts -40 °C bis +180 °C  
Temperature effect on zero signal TKo +0.05 % / 10 K Cn in Btu
Temperature effect on sensitivity TKc +0.03 % / 10 K  
Dead weight me 39 kg 40 kg 55 kg 85 kg 120 kg  
Corrosion protection   hot dip galvanized  
Protection class   IP65  
 

Cable specification

   Silicone: Æ 8.5 mm x 15 m, screened, including plug socket; Bending radius: > 40 mm, Temperature range: -50 °C … +180 °C; Wire assignment: 6 wires for measurement value;

2 wires for temperature monitoring

  
 

Colour code

   Black:                    Input    + (82)     Blue:       Input –        (81) Red:               Output + (28)     White:  Output –                               (27)

Yellow:                  Sense + (82.1)     Green: Sense – (81.1) Lila / Brown:                             Temperature sensor PT100

  

Mounting Dimensions

*) The optional version of the DWB with angular connector requires only 45 mm for the connection plus 15 mm for separating both parts of
the connector.

Variant A

mm

 B

mm

 C

mm

 D

mm

 F

mm

 G

mm

 H

mm

 I

mm

 K

mm

 L

mm

 M

mm

 N O

mm

 P

mm

 R

mm

 S

mm

 T

mm
DWB 50 t 450 120 130 105 398 68 75 40 80 110 26 M20 x 30 32 45 340 25,5 57
DWB 100 t 500 140 143 118 444 80 90 44 90 130 30 M24 x 36 38 54 370 28,5 62
DWB 150 t 560 160 158 133 500 94 102 44 90 150 33 M24 x 36 38 66 410 32 69
DWB 200 t 620 180 175 150 560 114 110 44 90 160 33 M24 x 40 40 75 450 32 76

Connecting surface quality requirements

■ Material quality “A”:

Usually construction steel of a

 ■ Planeness “D”:

Maximum admissible plane-

 ■ Plane parallelism “F”: Upper and lower connecting
  minimum quality S355 is used   ness tolerance within every   surfaces to the weighbeam
■ Plate thickness “B”:

Depends on stiffness of total construction. Plate thickness of

 ■ connecting surface is 0.05 mm Angular deviation error to verti-

cal axis “E”:

   have to be plane parallel to min. 0.1 mm
  connecting surface must be at   Angle deviation of connecting    
  least 40 % of the weighbeam   surface to vertical axis in both    
  height   planes of view must not exceed    
■ Surface quality “C”:

Requisite mean roughness of

   ± 2°    
  the connecting surfaces is        
  6.3 µm        
Variant Order No. Variant (*) Order No.
DWB 40 t V094838.B01 DWB 40 t PUR V094839.B01
DWB 50 t V094838.B02 DWB 50 t PUR V094839.B02
DWB 100 t V094838.B03 DWB 100 t PUR V094839.B03
DWB 150 t V094838.B04 DWB 150 t PUR V094839.B04
DWB 200 t V094838.B05 DWB 200 t PUR V094839.B05
Spare Part: Connecting cable

15 m with plug socket

 V090162.B01    

(*) Deviant technical data of the PUR variant:

suitable for outdoor use (better protection class IP66), Temperature range for storage and use: -40 °C … +80 °C.

Additionally, the PUR-types are equipped with an integrated overvoltage protection.

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