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High Performance Weighing / Batching Indicator
For batching, loss-in-weight, check weighing or simple static weighing. High Speed, High Accuracy, Fail Safe Operation
The AD-4401 Indicator is highly recommended for batching, loss-in-weight, check weighing, or simple static weighing. It provides System Self-Diagnostics, Superior Free-Fall Control and 8 modes of Weighing and Batching Programs
- 100 times per second high speed sampling
- High display resolution to 16000 counts
- Up to 1 million counts of A/D resolution
- Monitor and control weighing and batching with external or internal resolution
- Fuzzy and Automatic Free Fall Compensation (AFFC) for consistently accurate batching results
- Enter control setpoints through front keys or remotely through external thumb wheels
- Automatic weight and/or count accumulation
- Sub display provides feedback on all setpoints and simplifies calibration
- Supplementary flow function assures accurate performance on each batch
- A host of communications capabilities: RS-232C, RS-422/485, BCD, analog output and standard 20mA Current Loop
- Connect up to 10 AD-4401's with AND's RS-422/485
- Compact DIN size housing speeds installation and reduces space
- Digital Span Calibration enhances technical support and difficult installations
- Splash proof front panel and keys (IP-65)
- High sensitivity to 0.3µ V/d for more accurate measurements
- Automatic batching and customer programming capability
- Bright, clear fluorescent displays
- Hold and peak hold functions
- User programmed timer settings and alarms improve operational safety and performance
- Weigh-In and Loss-In-Weight Batching
System Self-Diagnostics
The most important factor in the installation of any weighing or controlling system is to assure that all cables, I/O connections and options are set up and working correctly. This can be very time consuming and difficult, adding to the expense of the installation. The AD-4401 weighing indicator solves this problem by providing System Self Diagnostics that can check:
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All installed options
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All I/O connections (without the need for test equipment)
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Setpoint connections
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Control Keys
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A/D converter input value
Superior Free-Full Control
The type of material being batched, ambient temperature, flow rate, consistency of the material, and many other factors impact the accuracy of any batching process. The AD-4401 weighing indicator provides two types of free fall compensation which may be selected according to batching conditions: Fuzzy Free Fall Compensation is particularly effective in batching inconsistent material, such as sand with stones; honey, whose flow rate changes according to ambient temperature; and flour, which is susceptible to sticking to the sides of the discharge gate.
High Performance A/D Converter
New Sigma Delta A/D converter IC provides high speed, high resolution and high sensitivity in a very small package, that saves space, reduces parts and lowers cost.
Customer Programmable Control I/O Pins and "F" Function Key
Each batching installation has different I/O requirements. The AD-4401 adapts to these requirements by allowing the programming of each of its Control I/O pins. The user may assign up to 6 input functions from a selection of 14, including: Zero, Tare Batch Start, Emergency Stop, Discharge Start, Clear Tare, Accumulation, Hold and others. Up to 8 output functions from a selection of 16 may also be selected, including: Zero Band, Under & Over Limits, Full-Medium-Dribble Flow, Discharge Gate Open, Batch Finish and others. Additionally, the programmable "F" function key on the front key pad of the AD-4401 may be programmed for each special operation, including: Manual Print, Hold, Batch Start, Emergency Stop, Clear to Zero, Clear Tare or Clear Total. (The US version may be programmed for lb/kg conversion)
Eight Modes of Weighing Batching Programs are Available for:
- Weigh-In Batching
- Loss-in-Weight Batching
- Check Weighing
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Rear Panel View
Standard Serial Output: 20mA current loop output to AND's peripheral device
Setpoint: Changes settings of each comparison value using a thumb wheel or AD4401-05 setpoint unit
User defined control I/O pins:
Select 6 of 14 control input commands
Select 8 of 16 control input commands
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Specifications
| Analog Input and A/D Conversion |
| Load cell excitation |
10 VDC ±5% 230mA, Remote Sensing (up to 8 load cells at 350/load cell) |
| ZERO Adjustment Range |
0.3mV-+20mV |
| Input Sensitivity |
0.3µ V/D (min) |
| Input Signal Range |
-1mV ~ +15mV |
| Load Cell Drive Capacity |
up to 8 units of load cells at 350 ohms/load cell (max 120mA) |
| Zero Temperature coefficient |
0.02µ V + 8ppm ofdead load)/°C TYP |
| Span Temperature coefficient |
±8ppm/°C reading (typ) |
| Non-Linearity |
0.01% of full scale |
| Input noise |
±0.3µ Vp-p |
| Input Impedance |
10M ohms minimum |
| Maximum Input noise |
less than 0.4 µ Vp-p |
| A/D Conversion Method |
Sigma Delta |
| A/D Resolution |
1,000,000 counts (maximum) |
| Maximum Displayed Resolution |
20,000 counts (maximum) |
| A/D Conversion Rate |
approximately 100 times/second |
| Digital Section |
| Main Display |
7 digit, 7 segment blue fluorescent display, 13mm character height, displays weight |
| Sub Display |
8 digit, 7 segment blue fluorescent display, 7mm character height, displays Tare, Final weight, Accumulated weight, Count of measurements |
| Display Resolution |
16000D |
| Minimum Division |
Times 1, x2, x5, x10, x20, x50 |
| Under ZERO indication |
"-" minus sign |
| Annunciator 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 |
| General |
| Power |
85~132V AC or 170-264V AC, 50/60 Hz |
| Operating temperature range |
-5°C - 40°C (23°F - 104°F) |
| Storage temperature range |
-15°C - 70°C (-5°F - 158°F) |
| Operating Humidity |
Less than 85% RH (non-condensing) |
| Weight |
approximately 2.7 lbs (1.3 kg) |
| Dimensions |
5.43 w x 2.68 h |
| Memory Battery Backup |
Lithium over six years without AC power |
| Standard Accessories |
Manual, Fuse, Sticker, Serial Connector, Load cell connector, Rubber foot, Terminal cover |
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