Industrial Weighing Solutions
Industrial Weighing Solutions
The R400 series of indicators are designed with both the installer and operator in mind and cover
•   100,000 d @ 0.25 µV/d
                                  a wide range of applications. They are engineered and built to last with reliability being foremost.
•   Trade approved Australia,     The modular design allows for the installation to be commissioned with only the components
    Europe and USA                required, saving on time and money.
•   Built in RS232/RS485          Flexibility is the key with its award winning modular accessory design. Modules include:
                                  additional serial options, input/outputs, analogue outputs, external buttons, Ethernet, Alibi (Data
•   IP65 ABS or stainless steel   Storage Device) and battery or AC option.
    housing
                                  Superior housings - two housing types are available:
•   16 x 350 ohm cells
                                       •    R420 (ABS) rated to IP65
•   Ethernet and Profibus DP
                                       •    R423 (stainless steel) rated to IP66
    support
•   Robust precise analogue       Both housings are designed with extra attention to detail to increase their reliability in the field,
                                  thereby reducing unplanned downtime and servicing costs. For example, the R423 uses a high
    output module                 impact polycarbonate lens to protect the LCD from knocks.
                                  Simple setup - use the menu system directly via the alpha numeric keypad or the configuration
                                  utility View400 on a PC.
                                  Operator friendly - large multi-segment display that uses logical prompts along with dedicated
                                  and programmable function keys. Printing can be tailored with custom record, docket or reports
                                  printouts. Primary display is 29mm (1.1”) and secondary display 18mm.
                                  Rugged Load Cell Input - Designed to take 16x320 ohm load cells; providing flexibility and
                                  reducing the need for summing hardware, simplifying the installation and saving money. The load
                                  cell input is protected with onboard transorbs to limit damage from external voltage surges.
                                  Networking Capability - Support for both Ethernet and Profibus DP to improve integration into
                                  larger control systems
                                  Modules
                                  The R400 Series flexibility is provided through its broad range of modules that are easy to
                                  configure and neatly connect into the rear of the indicator. There are 4 module slots where an
                                  indicator can be equipped with only the features required for a given installation.
                                  Robust Input/Output Modules (M4301, M4311, M4321, M4331)
                                  An R400 indicator can be equipped with up to 32 I/O. These I/O are electrically isolated, designed
                                  for direct connection into PLC’s and are capable of driving low voltage actuators directly.
                                       •    Isolated high side (400mA current source) drivers are capable of driving low voltage
                                            actuators directly or can be connected directly with PLC controllers.
                                       •    Each module has 8 digital I/O ports which are limited to maximum input voltage of 30V
                                            and can drive up to 400mA.
                                       •    Direct connection between I/O points is supported
                                       •    Inputs are isolated to resist against system noise.
                                  Button Module (M4302)
                                  The Button Module provides 4 voltage free inputs for use with switches or thumbwheels. The
                                  voltage free inputs eliminate the need to wire up complicate input driver circuits.
R400-702-410
                 Isolated Communication Modules
                 Communication modules are in addition the built in RS232/RS485 ports on the R400 indicators.
                      •      Fully isolated and recommended for application where there is a risk of lightening or
                             surges or where additional communication ports are required.
                      •      M4201 RS232/RS232, M4202 RS232/RS485, M4203 RS485/RS485
                 Precise Robust Analogue Output Module (M4401)
                 The analogue module provides a 4-20mA or 0-10V analogue output and two digital I/O.
                      •      Isolated so as to resist against system noise and interference therefore reducing
                             unnecessary callouts;
                      •      Precise with a 400Hz (2.5msec) update rate and 1/65,000 resolution. The fast update
                             and high D to A conversion rate give a smooth output curve which helps a PLC to see
                             more realistic readings (2.5msec step)
                      •      Scalable to suit the input on the PLC.
                      •      Two digital I/O provided the same as the M4301
                 Accessories
                 Converter 0-10V/4-20mA Input (M4902)
                 Connects to the Load Cell Input on R400 series indicators for a voltage or current input. Useful
                 where an indicator needs to take an input from load pins on a crane scale for example. Suitable
                 for pressure, displacement or strain transducers that output 4-20mA or 0-10V analogue signals.
                 Opto-link
                 The magnetically coupled opto-link on the front panel provides a convenient temporary connection
                 to a laptop - no need to access rear of the indicator.
                      •      Transfer of setup and calibration information
                      •      Download of software upgrades
                 Relay Module
                 The relay module, used in conjunction with an I/O module, provides 8 voltage free relay outputs
                 rated to 250VAC and 8A.
                      •      DIN rail mountable.
                      •      Provides N/O (normally open) and N/C (normally closed) contacts for each output.
Smart Weighing
                                   Superior Diagnostics
                                   R400 series indicators have a range of diagnostic tools and features that aid
                                   system commissioning and maintenance.
                                   Hardware configuration report summarises how the indicator hardware is setup,
                                   providing a record for maintenance purposes or fault finding
                                   Force Output and Test Input functions allow the installer to specifically test I/O
                                   to assist in site setup
                                   Modules can be swapped in and out without recalibration of the indicator, saving
                                   time and effort
                                   Status LED on each I/O;
                                   Overload counter to review if the scale has been overloaded.
R400-702-410
R400 Series – K401 – Data Sheet
•   Counting with piece weight entry   The K401 is a general purpose indicator suitable for weigh bridges, general
                                       trade weighing, multiple indicator weighing systems and process control. The
•   Custom unit switching              Scale Entry/Exist features make the K401 ideal for unmanned weigh bridges.
•   Set pointing                       Programmable printing for customized dockets and reports can support two
                                       separate printers
•   Reporting
                                           •    Comprehensive print tokens allow for all instrument data to be printed
•   Custom printing                             in a variety of formats
•   PLC integration                        •    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
                                           •    associated with a given output
                                           •    configured for high or low logic
                                           •    defined to use a given weight source – Gross, Net, Alternate Units or
                                                Piece count
                                       The large multi-line display assists the operator by displaying current weight and
                                       total weight and product name.
Smart Weighing
                                                 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.
R400-702-410
R400 Series – K402 – Data Sheet
•   250 Product storage            The K402 adds multiple-product databas to the K401, making it ideal for
                                   applications where there are a variety of products that have fixed attributes that
•   Counting with piece weight     need to be recalled.
    entry
                                   Powerful product configuration allows for parameters to be stored for each
•   Custom unit switching          product. For each product the following can be stored:
Smart Weighing
                                                 Powerful Product Configuration
                                                      •    Database of up to 250 complete sets of product parameters
                                                      •    Combine with logic set points for pass band where the
                                                           weight is between two targets
                                                      •    Combine with custom printing functionality to print product
                                                           subtotals and product names
                                                      •    Select products using the keyboard or use external inputs
                                                           from switch contacts (eg. thumb wheel)
                                                                                             ..now that’s smart weighing.
R400-702-410
R400 Series – K404 – Data Sheet
•   250 Truck IDs (Products)       The K404 is designed specifically for truck weighing. It allows for a range of
                                   operational scenarios all in one setup, from weigh-in/weigh-out to stored truck ids.
•   Preset Tare and accumulation   The dedicated Truck ID button and Print button simplify the operator interface.
    data on each Truck ID          Additionally the alpha-numeric keypad allows for easy entry of tare weight and
•   Single and two pass weighing   Truck IDs. With 250 Truck IDs available it is suitable for applications with truck
                                   fleets of up to 250.
•   Alpha-numeric Truck ID names
                                      The following operational scenarios can all be handled on the one setup:
•   Programmable printing
                                       •    Print the weight of the truck on the scale
•   Drive up to 16x350ohm load
    cells                              •    Weigh a truck in a single pass using its tare weight
•   Simple two button operation        •    Weigh a known truck with a stored Truck ID and preset tare and
                                            accumulate the statistics on that truck ID.
         Weigh in screen
                                       •    Two pass weighing with a weigh in followed by a weigh out. The ticket
                                            will show time/date weigh-in, weigh-out and net weights.
                                       •    Automatic temporary Truck ID to simplify weigh-in/weigh-out for fast
                                            weighing throughput. The temporary Truck ID is removed once the
                                            weigh-out is complete.
                                       R400 Indicators are ideal for weigh bridges:
    Weigh out with preset tare         •    Isolated communication modules for excellent protection against lightning
                                       •    All accessory modules, including the power supply, can be swapped
                                            without recalibration.
                                       •    Indicator configuration and setup can be reused and easily uploaded
                                            using the opto-link on the front panel.
                                       •    Pre-calibration using mV/V saving time on full calibration
Smart Weighing
                                        Dedicated Truck Weighing Interface
                                        The K404 operation builds on years of experience working with specialist
                                        truck scale manufactures to streamline weigh bridge operation and simplify
                                        the operator experience.
                                            •    Simple two button operation Truck ID and Print
                                            •    Automatic temporary truck ID assigned if permanent ID isn’t
                                                 required
                                            •    Single pass or two pass weighing with same set up.
                                                                                           ..now that’s smart weighing.
R400-702-410
R400 Series – K410 – Data Sheet
•   100 Recipes (Products)          The K410 is a single material filling application used for dosing, bagging and silo
                                    discharge.
•   3 set batching stages- Fill,
    Dump and Pulse                  Easy setup: The K410 uses three set batching stages: fill, dump and a finish
                                    stage. The defined I/O simplifies setup - defining the fill outputs, interlocks and
•   1 Material/3 Speed Fill         enables that would generally be used on filling systems.
•   Fill correction using jogging   Negative batching is supported by setting the fill direction which defines if the
    or in-flight                    weight is increasing or decreasing while batching - ideal for discharge and dosing
                                    applications.
•   Negative batching
                                    Batch Suspend can be allocated to a function key - the batch will pause and adjust
•   Batch suspend
                                    the tare weight when resuming the batch. Ideal for when a material feeding the
•   Dump to time or weight          batch needs to be topped up during the batch without affecting the batched amount,
                                    or when feeding from multiple bulker bags etc.
                                    Timer based multiple batching uses the Real Time Clock to control the batch start
                                    time and the duration between repeat batches - ideal for bio-fuel applications.
                                    When using timer based batching, the current weight is displayed along with the
                                    time to go before the next batch, keeping the operator informed.
Smart Weighing
                                                   Predefined fill, dump and finish configuration for fast setup.
R400-702-410
R400 Series – K411 – Data Sheet
•   100 Recipes (Products)          The K411 provides a powerful and flexible batching controller that builds on the
                                    K410 functionality where up to 10 batching stages can be defined for an application
•   10 Batching stages              as either a fill, dump or pulse stage. It is suitable for multi-head batching machines
•   Fill, Dump, and Pulse stages    and more complex control systems.
•   6 Materials/3 Speed Fill        Detailed reporting with material usage and batch statistics, along with QA records
                                    of every batch run possible when combined with the data logger;
•   Fill correction using jogging
                                    Batching operation flexibility where batch size can be varied by either weight or
    or in-flight
                                    proportion and the operator can set number of batches to run.
•   Dump to time or weight
                                    Overall system accuracy of the K411 allows for unprecedented filling control with
•   Negative batching and Batch     uncertainty of less than 1 millisecond.
    suspend                         The 32 I/O control points available on R400 indicators allow for complex control
•   Timer based multiple            with multiple set points, enables and interlocks. As the outputs are isolated high
    batching using Real Time        side (current source) drivers they are capable of driving low voltage actuators
    Clock                           directly or can be connected directly with PLC controllers.
                                    The multi-line display shows batch progress, current weight, target weights,
                                    material name along with dedicated batch status annunciators. For example in a
                                    batch out scenario current net weight and target weight along with name of the
                                    material that is being batched is displayed.
Smart Weighing
                                                     Functions for Industry
                                                     Automatic proportion calculation after first fill stage
                                                         •    Proportions of remaining batch are adjusted automatically
                                                              according to first material fill quantity
                                                         •   Ideal for applications with a manually loaded first fill stage
                                                     Timer based multiple batching
                                                         •    The Real Time Clock is used to control the batch timing
                                                              for time based batching
                                                         •    Ideal for bio-fuel and dosing applications
                                                                                                ..now that’s smart weighing.
R400-702-410
R400 Series Specification Table
 Resolution                                                               Up to 100,000 d, minimum of 0.25uV/d
                                                                       10,000 d @0.7uV/d NMI(S-463), OIML R76
                                                                                   III/III L NTEP 08-720
 Approvals
                                                                          MID 2004/22/EC - WELMEC 2.1 & 7.2
                                                                                     FCC, CE, C-tick
 Zero Cancellation                                                                      +/- 2.0mV/V
 Span Adjustment                                                                   0.1mV/V to 3.0mV/V
                                                   7.4V for up to 16 x 350 or 32 x 700 ohm load cells (4-wire or 6-wire plus shield)
 Excitation
                                                                     Maximum total load cell resistance: 1,000 ohms
 A/D Type                                                           24bit Sigma Delta with ±8,388,608 internal counts
                                                                  Temperature: –10 to +50°C ambient (14 °F to 122 °F)
 Operating Environment
                                                                             Humidity: <90% non-condensing
                                                                 LCD with 4 alpha-numeric displays and LED backlighting:
                                                       Primary display: 6 x 28.4mm (1.12") high digits with units and annunciators
 Display                                                              2nd display: 9 x 17.6 mm (0.7") digits with units
                                                                            3rd display: 8 x 6.1 mm (0.2") digits
                                                                            4th display: 4 x 7.6 mm (0.3") digits
 Setup and Calibration                                              Full digital with visual prompting in plain messages
 Digital Filter                                                     Sliding window average from 0.1 to 30.0 seconds
 Zero Range                                                          Adjustable from +/- 2% to +/- 20% of full capacity
 Standard Power Input                                        12 to 24VDC (15 VA max) - ON/OFF key with memory feature
                                                                                     AC power supply
                  AC
                                                                    Input: 110/240VAC 50/60Hz Output: 12VDC 15VA
 Variants
                                                                         2.5AH NiMH rechargeable battery pack
                  Battery
                                                                   Charger Input: 110/240VAC 50/60Hz Output: 12VDC
                                                                     Magnetically coupled infra-red communications
 Optical Data Communications
                                                                      Conversion cables available for RS232 or USB
 Correction                                                                     10 point linearity correction
                                                      Serial 1A: RS-232 serial port for remote display, network or printer supports.
 Serial Outputs                                                     Serial 1B: RS485 transmit only for remote display
                                                                   Transmission rate: 2400, 4800, 9600 or 19200 baud
 Assignable Function Keys                                                                    3
 Operating Modes                                                       Single Range, Dual Range and Dual Interval
 Battery Backed Clock Calendar                                                 Battery life 10 years minimum
 Application Software                K401       K402                 K404                        K410                                   K411
                                                                                              1 Material                              6 Material
                                      Custom printing,     Single pass weighing        3 fixed batching stages             Up to 10 Batching Stages
                                        custom unit         Two pass weighing           - fill, dump and pulse                    3 Speed Fill,
                                         switching,         Dedicated truck key
                                         counting,            Custom printing                3 Speed Fill                  Fill, Dump & Pulse stages
 Functions
                                     manual hold, peak     Temporary Truck IDs                             Inflight & jogging correction,
                                           hold,               Preset Tare
                                        auto output          Specialised truck                                   Negative batching
                                         totalising               dockets                                         Batch suspend
                                                                                                     Timer (RTC) based multiple batching
 Products/Recipes                      1        250               250 Trucks                 100 Recipes                          100 Recipes
 Set points                                                                                  8
 Analogue Output *                                                                           1
 Additional Communications *                             Module: RS232/RS232 Module: RS232/RS485 Module: RS485/RS485
 Button Input *                                                                          4 Buttons
 Data Storage Device *                                                                       1
 Profibus-DP                                                          Used with Rinstrum 1400 Profibus-DP Module
 Ethernet *                                                                                  1
 Housing Options                                         R420                                                            R423
 Case Materials                                           ABS                                                       Stainless Steel
 Packing Weights                                Indicator: 1kg (35 oz)                                          Indicator: 1.2kg (42 oz)
 Environmental IP Rating
                                                          IP65                                                           IP66
 (panel mounted or with rear boot)
R400-702-410
    R420 Rear Boot for IP65 standalone
                                                                                    R420 Brackets                                   R423 Bracket
                  unit
                                                                                                     Stainless Steel
       Rear Boot               Rear Boot with              Stainless Steel Wall Mounting                                        Stainless Steel
                                                                                                     Post Mounting
                                Desk Stand                            M4003                                                 Desk/Wall/Post Mounting
                                                                                                         M4004
                                                 [2.1in]                                                  [4.8in]
                                                 54mm                                                    121mm
                                                                              [9.7in]
                                                                             246mm
                                                                                                     [5.3in]
                                                                                                    134mm
                                                                                                                          140.2mm
                                                                 2.0in
                                                                                                                                                    5.6in
                                                                                                                            5.5in
                                                                                                                                                        213.3mm
                                                       8.40in
                                                                                                                                                         8.40in
                                                                                                                          130mm
                                                                                                                           5.12in
Specifications are subject to variation for improvement without notice. Illustrations are indications only and variation may be evident between products.
*Optional modules
R400-702-410
R400 Series – K481 – Data Sheet
•   Up to 9 slave units            The K481 Summing Indicator is based on the R400 Series indicator hardware. It
                                   shares the same style operator interface and setup menus making it easy for both
•   Up to 4 subtotals              the operator and the installer. The K481 can sum both R300 Series and R400
•   Subtotal can add or subtract   Series indicators.
    slave values                   Sum Nine (9) Slave Units: The K481 can sum up to nine slave indicators from
•   Sum R300 indicators            either the R300 or R400 range. These can be connected together on a multi-drop
                                   serial RS485 bus or RS232 ring network. The summing indicator polls each of the
•   Sum R400 indicators            slave units summing all of the weight readings, and displays the resulting total
                                   weight.
•   Built in serial ports
                                   Four (4) Subtotals: Up to 4 subtotals can be defined to add or subtract slave
•   Complies to Technical          values. Each subtotal can be named to assist the operator and for custom printing.
    Schedule S1/0/A
                                   Support for R400 Series Modules and Accessories: The K481 uses the R400
                                   series Accessories and supports many of the R400 series modules – additional
                                   communications modules, button module, input/output modules and analogue
                                   module.
                                   Applications: multiple deck weigh bridges, car balancing systems, aircraft
                                   weighing, medical bed weighing applications and shipyard centre of gravity ballast
                                   determination.
Smart Weighing
                                                  Designed to support applications where balance or relative
                                                  weight is important.
                                                  Up to 4 subtotals can be defined - these subtotals can add or
                                                  subtract slave weight values. In a car balancing scenario four
                                                  subtotals are defined:
                                                      •    Front Axle = 1+4
                                                      •    Back Axle = 2+3
                                                      •    Left Side = 1+2
                                                      •    Right Side = 3+4
                                                                                           ..now that’s smart weighing.
R400-702-410
R400 Series – K481 Summing Specification Table
                                                                     Australia NMI S1/0/A
 Approvals
                                                                        FCC, CE, C-tick
                                                   Temperature: –10 to +50°C ambient (14 °F to 122 °F)
 Operating Environment
                                                                Humidity: <90% non-condensing
                                                LCD with 4 alpha-numeric displays and LED backlighting:
                                       Primary display: 6 x 28.4mm (1.12") high digits with units and annunciators
                                                        nd
 Display                                              2 display: 9 x 17.6 mm (0.7") digits with units
                                                                rd
                                                               3 display: 8 x 6.1 mm (0.2") digits
                                                                th
                                                               4 display: 4 x 7.6 mm (0.3") digits
 Standard Power Input                        12 to 24VDC (15 VA max) - ON/OFF key with memory feature
                                                                       AC power supply
               AC
                                                     Input: 110/240VAC 50/60Hz Output: 12VDC 15VA
 Variants
                                                             2.5AH NiMH rechargeable battery pack
               Battery
                                                    Charger Input: 110/240VAC 50/60Hz Output: 12VDC
                                                      Magnetically coupled infra-red communications
 Optical Data Communications
                                                      Conversion cables available for RS232 or USB
                                      Serial 1A: RS-232 serial port for remote display, network or printer supports.
 Serial Outputs                                      Serial 1B: RS485 transmit only for remote display
                                                    Transmission rate: 2400, 4800, 9600 or 19200 baud
 Assignable Function Keys                                                      3
 Battery Backed Clock Calendar                                   Battery life 10 years minimum
 Application Software                                                        K481
                                                       Up to 9 Slaves (R300s or R400s all one type)
 Functions                                                          Up to 4 Subtotals
                                                               Custom Printing, Auto Output
 Products/Recipes                                                             250
 Set points                                                                    8
 Analogue Output *                                                             1
 Additional Communications *             Module: RS232/RS232 Module: RS232/RS485 Module: RS485/RS485
 Button Input *                                                            4 Buttons
 Data Storage Device *                                                         1
 Ethernet *                                                                    1
 Housing Options                             R420                                                    R423
 Case Materials                              ABS                                              Stainless Steel
 Packing Weights                     Indicator: 1kg (35 oz)                               Indicator: 1.2kg (42 oz)
 Environmental IP Rating
                                             IP65                                                    IP66
 (panel mounted or with rear boot)
*Optional modules
R400-702-410
R400 Series – K491 Tilt Compensation – Data Sheet
•   2 Axis tilt compensation     The K491 is a general purpose indicator that uses an accessory module to connect
                                 to a 2 axis tilt sensor that provides tilt compensation. The K491 is ideal for
•   Supports R400 series         specialist truck OEM’s requiring electronics for accurate load weighing solutions
    modules & accessories        where the load may be on an angle. Both the ABS R420-K491 and stainless steel
•   I/O Modules                  R423-K491 are ideal for panel mounting in a truck cab, featuring a large display and
                                 programmable function keys. The application is for a truck to have accurate weight
•   Communication Modules        readings that can compensate for uneven surfaces where a weight reading might be
    (RS232/RS485)                taken
•   Up to 250 Products           Simple calibration: Zero/Span calibration (at 0 angle) and tilt calibration to
                                 generate the four tilt parameters that are used to correct the reading.
•   Built in RS232/RS485 ports
                                 Accessories: The K491 requires a tilt module and tilt sensor.
•   Up to +/- 15 degree
    compensation                     •    Tilt Module (M4211)
                                     •     Rinstrum tilt sensor (M4) suitable for +/- 10 degree
                                     •    The tilt sensor must be correctly mounted given the axes that are providing
                                          data
                                     •    The K491 is compatible with a selection of the other sensors up to +/-15
                                          degrees
                                 Custom printing: dockets can be customised for the application. The built in
                                 RS232/RS485 port can be configured for printing.
Smart Weighing
                                                Simple three stage calibration
                                                1. Zero Calibration (at 0 angle)
                                                     •    Performed on level surface
                                                     •    Tilt sensor is automatically set to 0
                                                     •    Calibrates out any inaccuracies
                                                2. Span Calibration (at 0 angle)
                                                3. Tilt Calibration - this generates four tilt parameters that are used
                                                to correct the reading.
                                                                                            ..now that’s smart weighing.
R400-702-410
R400 Series – K491 Tilt Compensation Specification Table
 Resolution                                                              Up to 100,000 d, minimum of 0.25uV/d
                                                                       10,000 d @0.7uV/d NMI(S-463), OIML R76
 Approvals
                                                                                    FCC, CE, C-tick
 Zero Cancellation                                                                     +/- 2.0mV/V
 Span Adjustment                                                                  0.1mV/V to 3.0mV/V
                                                  7.4V for up to 16 x 350 or 32 x 700 ohm load cells (4-wire or 6-wire plus shield)
 Excitation
                                                                  Maximum total load cell resistance: 1,000 ohms
 A/D Type                                                        24bit Sigma Delta with ±8,388,608 internal counts
                                                               Temperature: –10 to +50°C ambient (14 °F to 122 °F)
 Operating Environment
                                                                            Humidity: <90% non-condensing
                                                             LCD with 4 alpha-numeric displays and LED backlighting:
                                                    Primary display: 6 x 28.4mm (1.12") high digits with units and annunciators
 Display                                                           2nd display: 9 x 17.6 mm (0.7") digits with units
                                                                           3rd display: 8 x 6.1 mm (0.2") digits
                                                                           4th display: 4 x 7.6 mm (0.3") digits
 Setup and Calibration                                           Full digital with visual prompting in plain messages
 Digital Filter                                                  Sliding window average from 0.1 to 30.0 seconds
 Zero Range                                                       Adjustable from +/- 2% to +/- 20% of full capacity
 Standard Power Input                                      12 to 24VDC (15 VA max) - ON/OFF key with memory feature
                                                                                    AC power supply
                  AC
                                                                 Input: 110/240VAC 50/60Hz Output: 12VDC 15VA
 Variants
                                                                         2.5AH NiMH rechargeable battery pack
                  Battery
                                                               Charger Input: 110/240VAC 50/60Hz Output: 12VDC
                                                                  Magnetically coupled infra-red communications
 Optical Data Communications
                                                                   Conversion cables available for RS232 or USB
 Correction                                                                    10 point linearity correction
                                                    Serial 1A: RS-232 serial port for remote display, network or printer supports.
 Serial Outputs                                                  Serial 1B: RS485 transmit only for remote display
                                                                Transmission rate: 2400, 4800, 9600 or 19200 baud
 Assignable Function Keys                                                                   3
 Operating Modes                                                       Single Range, Dual Range and Dual Interval
 Battery Backed Clock Calendar                                               Battery life 10 years minimum
 Application Software                                                                     K491
                                     Custom printing, custom unit switching, counting, manual hold, peak hold, auto output and totalising
 Functions
                                                                            Compensation +/- 15 degree tilt
                                                                Three step calibration process - Zero, Span, Tilt
 Specialist K491 Module                                                     Tilt Module (M4211) is required
                                                     Rinstrum 2 Axis Tilt Sensor (M4904 +/- 10 degree tilt compensation)
 Compatible Tilt Sensors
                                                                 HL-Planar Technik NS-10/PL2-S or NS-15/PL2-S
 Products/Recipes                                                                          250
 Set points                                                                                 8
 Analogue Output *                                                                          1
 Additional Communications *                          Module: RS232/RS232 Module: RS232/RS485 Module: RS485/RS485
 Button Input *                                                                         4 Buttons
 Data Storage Device *                                                                      1
 Ethernet *                                                                                 1
 Housing Options                                      R420                                                         R423
 Case Materials                                       ABS                                                      Stainless Steel
 Packing Weights                              Indicator: 1kg (35 oz)                                      Indicator: 1.2kg (42 oz)
 Environmental IP Rating
                                                      IP65                                                          IP66
 (panel mounted or with rear boot)
*Optional modules
R400-702-410