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AND AD-4401 Weighing Indicator



Kitoma Indonesia : AND AD-4401 Weighing Indicator

High Performance Weighing/Batching Indicator

High Speed - High Accuracy - Fail Safe Operation

For batching, loss-in weighing, check weighing or simple static weighing


  • 100 times/sec. High Speed Sampling
  • High display resolution to 16,000 counts
  • Up to 1 million counts of A/D resolution
  • Monitor & Control weighing and batching with external or internal resolution
  • Fuzzy and Automatic Free Fall Compensation (AFFC) for consistenly accurate batching results
  • Enter control setpoints through front keys or remotely through external thumbwheels
  • Atomatic weigh and/or count accumulation
  • Sub display provides feedback on all setpoint & simplifies calibration
  • Supplementary flow function assures accurate performance on each batch
  • A host of communications capanilities :
  • RS-232C, RS-422/485, BCD, Analog output and standard 20mA Current Loop
  • Connect up to 10 AD-4401's with A&D's RS-422/485
  • Compact DIN size housing speeds installation & reduces space
  • Digital Span Calibration enhances technical supprt and difficult installations
  • Splash proof front panel and keys (IP-65)
  • High sensitivity 0.3 µV/d for more accurate measurements
  • Automatic batching and customer programming capability
  • Bright, clear fluorescent displays
  • Hold and peak hold functions
  • User programmed time settings and alarms improve oprational safety & performance
  • Weight-in and Loss-in-Weight batching


Rear Panel View

Standard Serial Output : 20mA current loop output to A&D's peripheral device
Setpoint : Changes settings of each comparison value using a thumbwheel or AD4401-5 Setpoint unit
User Defined Control I/O Pins :
Select 6 of 14 control input commands
Select 8 of 16 control output commands






Input Sensitivity Greater than 0.3 µV/d
ZERO Adjustment Range  0.3 mV ~+ 20mV
Load Cell Excitation 10 VDC ± 5% 230mA, Remote Sensing (Up to 8 load cells at 350/load cell)
Zero Temperature Coefficient  ± (0.2 µV + 0.0008% of dead load)/℃
Span Temperature Coefficient 8 ppm/℃ of reading
Non-Linearity 0.01% of full scale
Input Noise ± 0.3 µVp-p
Input Impedance 10 M (Min.)
A/D Conversion Method Sigma Delta
A/D Resolution 1,000,000. counts (Max.)
A/D Conversion Rate Approximately 100 times/second
Main Display 7-segment, 7-digit 13 mm(H) blue fluorescent, Displays the weight
Sub Display 7-segment, 8-digit 7 mm(H) blue fluorescent, Displays Tare, Final weight, Accumulated weight, Count of measurements
Display Resolution 16000D
Minimum Division Times 1, X2, X5, X10, X20, X50
Maximum Display "999950"
Under ZERO Indication "-" minus sign
Keys Setpoint, Zero, Tare, Net/Gross, Enter, OPR/STB, F, CAL
Programmable "F" Keys Select one : Emergency Stop, Clear to zero, Clear tare, Clear total, Manual Print, Hold, Loading start or No capability
Power 85 ~ 132 VAC or 170 ~ 264 VAC 50/60Hz
Net Weight Approximately 1.3 kg (2.7 lb)
Operating Temperature -5℃ - 40℃ (23℉ - 104℉)
Storage Temperature 15℃ - 70℃ (-5℉ - 158℉)
Operating Humidity Less than 85% RH(non-Condensing)
Physical Dimensions 144(W) x 72(H) x 197(D) mm
5.67(W) x 2.83(H) x 7.76(D) inches
Panel Cutout Dimensions 138+1.0/-0(W) x 68+0.7/-0(H) mm
5.43+0.04/-0(W) x 2.68+0.03/-0(H)inches
Memory Battery Backup Lithium over six years without AC power
Standard Accessories Manual, Fuse, Sticker, Serial Connector, Load cell connector, Rubber foot Terminal cover
AD-4401-01 Parallel BDC Output (Open Collector)
AD-4401-03 Serial Interface RS-422/485
AD-4401-04 Serial Interface RS-232C
AD-4401-05 Setpoint Unit
AD-4401-07 Analog Output (4~20mA)



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