MDB-LA
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The document describes the Miniature Double-Ended Beam (MDB) load cell model MDB-LA from Vishay Precision Group. The MDB is designed for high capacity truck and rail scales with a low profile and is insensitive to side loading through its ball loading design. It has capacities of 25T or 30T, is constructed of electroless nickel-plated alloy steel, and is fully potted and sealed to IP67 standards for protection against water and moisture. Optional versions include hermetic sealing to IP68 and FM approval.
MDB-LA
- 1. www.vpgtransducers.com 98 Technical contact in Americas: lc.usa@vishaypg.com; Europe: lc.eur@vishaypg.com; Asia: lc.asia@vishaypg.com Document No.: 11718 Revision: 17-Jul-2012 Miniature Double-Ended Beam Model MDB-LA Celtron Miniature Double-Ended Beam FEATURES • Capacities: 25T, 30T • High side load tolerance • Electroless nickel-plated alloy tool steel • Surge protection • Optional ❍❍ Hermetically sealed available ❍❍ FM approval available APPLICATIONS • Truck/rail scales • Silo/hopper/tank weighing DESCRIPTION MDB is designed for truck and rail scales in high capacities with low profile. The design of loading through a ball is insensitive to side load. MDB is constructed of alloy steel and is fully potted and sealed with special chemical compounds to IP67 providing excellent protection against water and moisture attack. MDB Hermetically-Sealed is constructed to IP68 providing excellent protection against corrosive and wash-down environments. OUTLINE DIMENSIONS Wiring diagram: + Excitation Red - Excitation Black + Signal Green - Signal White CAPACITY L L1 L2 H H1 H2 Ø Ø1 W W1 T T1 25 / 30T mm 240 125 80 230 11 20 88 30 135 100 4-Ø18 2-M24 (inch) 9.45 4.92 3.15 8.85 0.43 0.79 3.46 1.18 5.31 3.94 with surge protection
- 2. Document No.: 63999 Revision: 15-Jul-2014 www.vpgsensors.com 1 Miniature Double-Ended Beam SPECIFICATIONS PARAMETER VALUE UNIT NTEP/OIML accuracy class Non-Approved Maximum no. of intervals (n) 3000 Y = Emax/Vmin 5000 Maximum available Standard capacities (Emax) 25000, 30000 kg Rated output—R.O. 2.0 mV/V Rated output tolerance 0.2 ±% of rated output Zero balance 1 ±% of rated output Non-linearity 0.030 ±% of rated output Hysteresis 0.030 ±% of rated output Non-repeatability 0.020 ±% of rated output Creep error (20 minutes) 0.030 ±% of rated output Zero return (20 minutes) 0.030 ±% of rated output Temperature effect on min. dead load output 0.0026 ±% of rated output/°C Temperature effect on sensitivity 0.0015 ±% of applied load/°C Compensated temperature range –10 to +40 °C Operating temperature range –20 to +60 °C Safe overload 150 % of R.C. Ultimate overload 300 % of R.C. Excitation, recommended 10 VDC or VAC RMS Excitation, maximum 15 VDC or VAC RMS Input impedance 770±10 Ω Output impedance 700±5 Ω Insulation resistance >5000 MΩ Cable length 13.5 m Construction Nickel-plated alloy steel Environmental protection IP67 All specifications subject to change without notice. FM Approval Intrinsically Safe: Class I, II, III; Div. 1 Groups A-G Non-Incendive: Class I; Div. 2 Groups A-D