BELT CONVEYOR SCALE "S4a"0 pages

APPLICATIONS The belt conveyor scale of "S" line is a microprocessor based equipment specifically designed for industrial plant applications. Typical applications may be: - Stock pile plant handling - Belt feeder flow control - Blending and batching systems MAIN FEATURES - No modifications to the conveyor structure - Weighing area spans from 1 to 4 idler stations - Pulse generating speed transmitter - Optoisolated RS485 serial ports - Optoisolated 4-20 mA flow rate output - Failure alarm hardware output - Optoisolation of all digital inputs/outputs - Periodic self corrections of thermal drift LOAD RECEPTOR Nominal capacity Combined error Zero thermal drift Span thermal drift Maximum load Max Off-center load Operating temp. Stocking temp. Protection Weight/packed volume SPECIFICATION 100 kg ±0,1 % of nom. capacity ±0,0025 % f.s./C ±0,0025 % /C 150% of nom. capacity 10 kgm -20 +50 C -40 +80 C IP67 4 kg / 19 dm3 ELECTRONIC UNIT SPECIFICATION Power supply Load cell supply Load cell quantity Measuring range Overload Speed input Serial outputs Digital outputs Analog output A/D converter Nonlinearity Combined error Thermal drift Auto zero range Flow rate alarm set Alarm differential Measuring period Display Key board Operating temp. Stocking temp. Connections Protection 24 V ca, +10% -15%, 50/60 Hz, 15 VA 11 V d.c., max 140 mA 4 max ±3 mV/V + 5% 1 - 50 Hz RS485 PNP, max 50 mA / 40 V 0/4-20 mA, 750 ohm max 16 bit "sigma-delta" 0,005 % 0,02 % of the span selfcompensated 0 - 5 % 0 - 100% f.s. 0 - 100 % f.s. 13 - 255 msec 9 mm LCD, 2 rows, 16 digits 8 functional keys - 20 + 50 C - 40 + 80 C 2 Screw terminals 2,5 mm2 IP00 IP55 in metal box Ip55 in resine box SPEED TRANSMITTER TVN1 SPECIFICATION Power supply Nominal sensitivity Operating temp. Stocking temp. Protection 24 V d.c. 20 mA 10 mm to steel -20 +50 C -40 +80 C IP65 CELMI s.r.l. Tel +39-0245712209 Largo Brugnatelli 13/16 Fax +39-0245705836 20090 BUCCINASCO (MI) ITALY Internet: www.celmi.com