instrumentation Systems
Key lock function
Various Thermocouple and RTD inputs
RS-485 communication
1/4DIN, 1/8DIN, 72mm and 1/16DIN
PID and ON/OFF control modes
Two alarm outputs, with 10 alarm modes
Auto tuning function
Co and Fo selectable
Input Voltage
100 to 240VAC, 50/60Hz
Sensor Type
Temperature Pressure Flow Other
Thermocouple : J, K, R, S, T, N, B, E, U, L, TXK
P latinum RTD : Pt100, JPt100
Any Pressure Transducer Any Flow Transducer Level, PH, Conductivity Transducer
Control output
Relay SPDT-NO, 5A 250VAC
Voltage PNP, 14VDC + 10% -20% Max.40mA
Current 4 to 20mA, 600 max.
Control mode
Method PID or ON/OFF or Manual
Control period 1 to 99 seconds, unit : 1 sec.
Sample rate 500ms
Alarm output
Interface RS - 485
Protocol Modbus, ASCII
Baud rate 2400, 4800, 9600, 19200, 38400bps
Batch Weighing Controller
    Batch Weighing Controllers
A host of communications capabilities:
RS-232C, RS-422 / 485, BCD, analog output and standard 4-20mA Current Loop.
Automatic weight and / or count accumulation.
Monitor & control weighing batching with external or internal resolution.
Compact DIN size housing speeds installation & reduces space.
High sensitivity 0.3µV / d for more accurate measurements.
Hold and peak hold functions.
High display resolution to 16,000 counts.
Connect up to 10 AD-4401's with A & D's RS-422 / 485
Supplementary flow function assures accurate performance on each batch.
Fuzzy and Automatuc Free Fall Compensation (AFFC) for consistently accurate batching results.
Up to 1 million counts A/D resolution.
Digital Span Calibration enhances technical support and difficult installations.
User programmed timer settings and alarms.
Splash proof front panel and keys (IP-65).
Weigh-In and Loss-in-Weight batching.
Automatic batching and customer programming capability.
Enter control setpoints through front keys or remotely through external thumbwheels.
Bright, clear fluorescent displays.
Sub display provides feedback on all setpoints and simplifies calibration.
100 times / sec. High Speed Sampling.
Input Sensitivity
Greater than 0.3µV / d
ZERO Adjustment Range
-0.0mV ~ + 20mV
Load Cell Excitation
10V DC ± 5% 230mA, Remote Sensing
(Up to 8 load cells at 350 / load cell)
Zero Temperature Coefficient
± (0.2µ + 0.0008% pf dead laod) / oC
Span Temperature Coefficient
8ppm / oC of reading
0.01% of full scale
Input Noise
± 0.3µVp-p
Input Impedance
10M (Min.)
A / D Conversion Method
Sigma Delta
A / D Resolution
1,000,000. counts (Max.)
A / D Conversion Rate
Approximately 100 times / second
Copyright @ Hi-tek Automation
Website Powered by : VCAN Technologies