'HOLBRIGHT' WEIGHING CONTROLLER

1. FEATURES
WEIGHING CONTROLLER
• Power fail protect circuit design.
• ‘Watch Dog’ circuit design.
• Humanize design easy simple operation. the HB-8212 is
designed with complete system operations from a few simple
keys.
• Full digital function setting, calibration and adjustment.
• Capable of driving up to 8 (350 Ω ) load cells (280mA).
• 32k Bytes Battery Backup memory for 5 data memorizing
modes.
• Standard RS-232C Communication interface.
• Standard 4 inputs, 3 outputs external I/O signal interface.
• Double weighing operation for truck scale application.
• Digital filter for animal scale application.
• Unit weight sampling or recall memory for counting scale
application.
• Secondary calibration function you just entering a parameter
for calibration without any standard weight.
• Data hold operation.
• Single batch weighing control application.
• Check weigher application.
• 10 automatic data printing/memorizing control mode.
• Definable data printed form.
• Automatic weighing application.
OPTION
• Interface
• RS-232/RS-422/RS-485/driver/receiver card
• Centronics 8 bits parallel printer port interface

2. WEIGHING CONTROLLER
INPUT AND A/D CONVERSION
Art No HB-8212
Item No 01HB-D-WI001
Input Sensitivity 0.3 V/D
Zero Adj. Range 0mV to 30 mV
Load Cell Excitation 12VDC, 280mA (Voltage sensing)
Input Impedance 10M (Min)
A/D Conversion Method
A/D Resolution 1,000,000 Counts
A/D Conversion Rate 20 Times Per Second
DIGITAL SECTION
Weight Display 13MM, 7 Digits high intensity cobalt-bule fluorescent tube
Under Zero Indication Negative “-” Sign
Over Load Indication Input signal > 36mV “- - - - - - -”
Annunciators Center of ZRO, POWER, TARE, GROSS, NET, COUNT, STABLE, FUNC.
Switches 0-9 Numeral Key, ZERO, TARE, GROSS/NET, PRINT, WT/CN, FUNC.
Digital Set-up Parameters Motion Detection
Zero Track
Decimal Point...None Or 1,2,3 or 4 Decimal Places
Count By...1,2,5,10,20,50
Max Capacities...10,000 Counts x Min. Increment
Digital Filter...None Or 2,4,6,8,16,32 Time Of Average
Zero Range...2%, 5%, 25%, 100% Of F.S
Conversion Rate...1/Sec, 5/Sec, 10/Sec, 20/Sec...Etc
Unit...Kg, T, G, Lb, Oz
Calibration (F.D.A.C) Zero & Span Full Digital Calibration
Non-linearity ± 0.01% Of Full Scale
GENERAL
Temp. Coefficient Zero... ± 0.2 µ V RTI
Span... ± 5ppm/ ºC Of Reading
Real Panel Load Cell Input... 7 Pin Industrial Circular Connector
Ext. Control... 9 Pin D-type Connector (Zero, Tare, Gross/ Net, Print, WT/CN,
Sensor Input)
Power Source (Factory Preset) 110, 220VAC ± 10%, 50/60HZ
Net Weight 2.5KG
Operating Temperature -10ºC to + 40ºC (+14ºF to + 104ºF)
Operating Humidity Max. 90% RH (Non-condensing)
Physical Dimensions (L x W x H)
152 x 202 x 105 (MM) Without Load Cell Connector
152 x 202 x 105 (MM) With Load Cell Connector
SPECIFICATIONS