CB-3 Concrete Batch Controller

  • Onboard industrial PC interface
  • 920i® digital weight indicator/controller
  • One aggregate and one cement scale, optional weighed water scale
  • Standard manual override controls
  • Automatic aeration control for cement silos and weigh hoppers
  • Automatic dust collection outputs
  • Multiple free fall values per material
  • Precision control of inching gates for aggregate and cement discharge
  • Auto-jogging gross, ideal targets and net mode batching
  • Material usage by day/week/month/year and on-site inventory reporting
  • Multiple browser-based windows and simultaneous processes to prepare the next batch while CB-3 is batching
  • Automatic daily ticket and system backups
  • 4 dual or 8 single speed aggregates
  • 4 dual or 8 single speed cements
  • Optional dual moisture probe interface (supports 4-20mA)
  • Descripción
  • CB-3 Concrete Batch Controller 920i Specifications

Descripción

Serial Ports:
4 ports on CPU board support up to 115,200 bps; optional dual-channel serial expansion boards available
Port 1: Full-duplex RS-232
Port 2: RS-232 with CTS/RTS via DB-9 connector; PS/2 keyboard interface
Port 3: Full-duplex RS-232, 20 mA output
Port 4: Full-duplex RS-232, 2-wire RS-485, 20 mA output

Warranty:
Two-year limited warranty

Keyboard:
27-key membrane panel, PS/2 port for external keyboard connection

Display:
(W x H) 4.6 in x 3.4 in (116 mm x 86 mm), 320 x 240 pixel VGA liquid crystal display
(LCD) module with adjustable contrast, 75 Hz scan rate 26,000 cd/m2 brightness

Line Voltages:
115 or 230 VAC

Frequency
50 or 60 Hz

Power Consumption:
500 mA, maximum at 115 VAC (26 W) / 240 mA at 230 VAC (26 W)

Full Scale Input Signal:
Up to 40 mV

Excitation Voltage:
10 ±0.5 VDC, 16 x 350 Ω or 32 x 700 Ω load cells per A/D card

Sense Amplifier:
Differential amplifier with 4 and 6 wire sensing

Analog Signal Input Range:
-10 mV to +40 mV

Analog Signal Sensitivity:
0.3 μV/graduation minimum at 7.5 Hz
1.0 μV/graduation typical at 120 Hz
4.0 μV/graduation typical at 960 Hz

A/D Sample Rate:
60 Hz

Input Impedance:
>35 M typical

Internal Resolution:
8 million counts/8 million 23 bit

Weight Display Resolution:
9,999,999

Input Sensitivity:
10 nV per internal count

System Linearity:
±0.01% full scale

Zero Stability:
±150 nV/° C, maximum

Span Stability:
±3.5 ppm/° C, maximum

Calibration Method:
Software, contents stored in flash memory

Input Voltage Differential:
±800 mV referenced to earth ground

Input Overload:
Load cell signal lines ±10 V continuous, ESD protected

RFI/EMI Protection:
Signal, excitation and sense lines protected

Microcomputer:
Motorola ColdFire® MCF5307 main processor at 90 MHz

Digital I/O:
6 I/O channels on CPU board; optional 24-channel I/O expansion boards available

Digital Filter:
Software selectable: 1–256, enhanced RATTLETRAP® hybrid digital filtering

Serial Ports:
4 ports on CPU board support up to 115,200 bps; optional dual-channel serial expansion boards available
Port 1: USB
Port 2: RS-232 with CTS/RTS via DB-9 connector; PS/2 keyboard interface
Port 3: Full-duplex RS-232, 20 mA output
Port 4: Full-duplex RS-232, 2-wire RS-485, 20 mA output

Warranty:
Two-year limited warranty