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R400 Series IndicatorsK401 General Purpose Software
K401 General Purpose Software
K401 General Purpose Software

R420-K401 and R423-K401

Key Highlights & Features
Product Description
  • 100,000 d @ 0.25 µV/d
  • Trade approved 10,000 d @0.7uV/d
  • IP65 ABS or stainless steel housing
  • IP65 ABS or stainless steel housing
  • 16 x 350 ohm cells
  • Counting with piece weight entry
  • Custom unit switching

The K401 is a general purpose indicator suitable for weigh bridges, general trade weighing, multiple indicator weighing systems and process control. The Scale Entry/Exist features make the K401 ideal for unmanned weigh bridges.

Programmable printing for customized dockets and reports can support two separate printers
  • Comprehensive print tokens allow for all instrument data to be printed in a variety of formats
  • Custom print strings can be assigned to multiple instrument events, for example long and short press of a print key.
Custom Unit Switching allows for complete flexibility
  • programme for standard weight units (kg, lb, t etc) or
  • define alternative weighing units for your application (litres or force for example)
Flexible set point configuration for improved system integration. A set point can be individually configured to instrument status or weight target triggers. Each set point can be:
  • Independently configured for a given function
  • Configured for high or low logic
  • Defined to use a given weight source – Gross, Net, Alternate Units or Piece count
  • Logic set points allowing for AND, OR, XOR across multiple sources
  • Selectable source: I/O, the status of the instrument, another setpoint or a register value
  • Set point naming
  • Settable delays before a set point becomes active or inactive.
The large multi-line display assists the operator by displaying current weight and total weight and product name.


Smart Weighing
R420-K401 and R423-K401

R400 Logic set points are based on the status of the inputs and the defined mask that is used to match IO1-IO24 for the logic set points.

  •  AND logic set point active when all inputs in mask are on.
  • OR logic set point active when any inputs in mask are on.
  •  XOR logic set point active when only one input in mask is on.
For applications that require a combination of multiple conditions eg.
  •  An output that is only to be active when weight is above target and stable.
  •  Pass band: weigh is between two targets

..now that’s smart weighing.

Product Downloads
The following files are available for download for the K401 General Purpose Software. Ensure you select the correct documentation for your unit's software version. Check back regularly for software and other updates.

To download files, please click on a filename below. A save dialogue box should appear allowing you to specify your save location.
If a save dialogue box does not appear, right click on the link and select save target as.


 Application Note - Custom Print Strings Application Note - Custom Print Strings - 08 Sep 11 - 299KB (PDF) file 
 Application Note - Shielding Recommendations Application Note - Shielding Recommendations - 27 May 09 - 227KB (PDF) file 
 Application Note - Single Deck Weigh Bridge Application Note - Single Deck Weigh Bridge - 01 Feb 09 - 231KB (PDF) file 
 Brochure Brochure - 18 Jun 08 - 717KB (PDF) file 
 Data Sheet Data Sheet - 28 Nov 13 - 853KB (PDF) file 
 EC Type Approval Certificate EC Type Approval Certificate - 03 Dec 15 - 571KB (PDF) file 
 K401 Firmware K401 Firmware - 15 Dec 14 - 536KB (ZIP) file - R400-526-261 
 K401 Firmware K401 Firmware - 01 Dec 15 - 528KB (ZIP) file - R400-526-264 
 K401 Firmware K401 Firmware - 02 Mar 17 - 536KB (ZIP) file - R400-526-265 
 Manual - Operator Manual - Operator - 29 Jul 11 - 4653KB (PDF) file 
 Manual - Quick Start Manual - Quick Start - 29 Jul 11 - 458KB (PDF) file 
 Product  Update: R400 Set Point and Barcode (K401/K402/K491) Product Update: R400 Set Point and Barcode (K401/K402/K491) - 15 Sep 11 - 46KB (PDF) file 
 Test Certificate Test Certificate - 14 May 15 - 613KB (PDF) file - R400-810