CELMI s.r.l. Largo Brugnatelli 13/16 20090 BUCCINASCO (MI) ITALY Tel+39-0245712209 Fax+39-0245705836 Internet:www.celmi.com WASHER LOAD CELL TYPE 281 APPLICATIONS: The washer load cell type 281 can be used in small and medium loading capacity weighing systems Some applications are: - Control weighing systems on aerial platforms - Production machine - Tension system - Control weighing systems on lifting machine, etc. MAIN FEATURES: - Hose-proof (IP 66) - Stainless steel - Standard nominal load from 0,3 to 20 tons NOMINAL LOAD: ton 0,3-0,5-0,75-1-1,5-2-3-5-7,5-10-15-20 METROLOGICAL C HARACTERISTICS Par. Un. COMB INED E RROR Fcom b %Ln 0 ,800 NOMINAL LO AD Ln t 0 ,3÷20 IN IT IA L LO AD L p % Ln 5 MAX IMUM LO AD L l %Ln 130 NON-L INEARITY Flin %Ln 0 ,5 HISTERE S IS E RROR Fu %Ln 0,1 REPEATA B ILITY E RROR Fv %Ln 0,1 CREEP-30 M INUTES Fcr %Ln 0,1 CAMPO D I TEMPERATURA NOMINALE Btn °C -10+40 ZERO TEM PERATURE DRIFT (OVER 10 °C) TK0 %Cn 1 OUTPUT TEM PERATURE DRIFT (O VER 1 0 °C) TKC %Cn 1 THERMAL G RADIENT °K /h <5 ELECTR ICAL D A TA NOMINAL O UTPUT C n m V/V 1÷2 NOMINAL S U PPLY VO LTAG E Bsu V 1÷12 MAXIMUM S U PPLY VO LTAG E Usm ax V 15 INPUT R E S ISTANCE Re Ù 350±1% OUTPUT RESISTANCE R a Ù 350±1% INSULATION R E S ISTANCE @ 20V Ris MÙ >2000 ZERO O UTPU T TOLERANCE Do ±%Cn 2 MECHAN ICAL D A TA BREA K ING LOAD Ld %Ln >250 MAXIMUN S IDE LOAD Llq % Ln 10 DEFLECTION hn m m <0.2 CABLE LENGTH m 5 ENVIRONMENTAL COND ITIONS W ORK ING TEM PERATURE RANGE B tn °C -10+80 STORAG E TEM PERATURE RANGE B ts °C -40+80 HOUSING PROTECTION IP-66 SPECIFICATION ACCORDING TO VDI/VDE 2637 SUBJECT TO CHANGE WITHOUT NOTICE