Checkweigher INTRODUCTION The Lightspeed Checkweigher meets the most critical customer needs by joining quick, stable weight readings with the strength to survive the harsh industrial environments found in food-processing and other industries. The DYNARREST vibration filtering system uses digital signal processing and...
Technical Manual Features Improved Interface • Large, easy to read LED display (7/8 inch digits, 22 mm) • Oversize keys with international symbols • Brightly colored checkweighing bar graph for quick results • Intuitive target modes and product storage Durable & Sanitary •...
Checkweigher KEYPAD & SCALE FUNCTIONS The Lightspeed indicator utilizes 7 keys for operator interfacing. To maximize indicator functionality, some keys perform multiple functions. ZERO: Sets the weight display to ZERO. The scale will not zero if: • Weight on the scale is in MOTION;...
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Technical Manual TARE: Acquires tare value from weight on the scale (Container, Box, etc.). The scale will not tare if: • Weight on the scale is in MOTION; • The scale weight is negative; • The TARE function has been disabled. When one of these situations occurs, the display will briefly read “Err”.
Checkweigher DISPLAY & ANNUNCIATORS The Lightspeed uses a high intensity Light Emitting Diode (LED) display with a quick update rate. The LED bar graph visually signals over, under or accept conditions and the LED annunciator lamps communicate scale status and mode information to the user.
Technical Manual Annunciators CENTRE ZERO: The scale is within ±0.2 graduations of TRUE ZERO. MOTION: The scale is in motion. GROSS: The scale is in GROSS weighing mode. NET: The scale in NET weighing mode (a tare weight is stored) lb: The scale is weighing in POUNDS.
Checkweigher INSTALLATION Pre-Installation It is always good practice to verify that your Lightspeed checkweigher or Lightspeed indicator is complete and undamaged upon receipt. • Check over packaging for any signs of damage. • Remove the Lightspeed from protective packaging and check for damage.
Negative Excitation Load Cell Jumpers The Lightspeed accommodates 4 or 6 wire load cells. When using 4 wire load cells (No SENSE wires), the pins on JP1 and JP2 must be jumpered. For 6 wire load cells, remove the jumpers. See illustration below: 6 wire load cell –...
Communications settings can be adjusted in Calibration Mode by qualified Technicians. Mounting Instructions 1. The Lightspeed indicator can be mounted on any surface using the mounting bracket 2. Ensure that mounting structures (walls, posts, etc.) will bear the weight of the indicator (2 kg / 5 lbs).
Technical Manual Powering Up 1. Connect the AC power cord from the indicator into a power outlet. 2. Installers must take proper steps to prevent noise, static, or other power problems. ATTENTION! In noisy industrial environments, power- conditioning filters are a requirement to ensure a fail-safe operation under all conditions.
Press the ENTER key when done. 4. The first Calibration Mode parameter (P1.0) is displayed. If the password is incorrect the display will read “FAIL”. The Lightspeed utilizes electronic sealing. For more information on the password, sealing, and the electronic audit trail, see page...
Technical Manual Navigating Calibration Parameters 1. Use the UP and DOWN ARROW keys to find the parameter. Calibration Parameters are displayed by the letter “P” preceding the parameter number (Ex. “P1.1, P1.2, P1.3 …”). 2. Holding down the UP or DOWN ARROW key for more than 1 second will scroll through the Calibration Sub-blocks for quicker navigation.
Checkweigher CALIBRATION PARAMETERS Scale Calibration Sub-block 1.x Parameter Value Description P1.0 1d < Select scale graduations (d). Graduations Setting this parameter to higher than 10d will set the decimal point to 0, and display 2 leading zeros at ZERO (00). 100d Setting to 100D will result in 3 zeros at ZERO (000).
Technical Manual Zero and Motion Settings Sub-block 2.x Parameter Value Description P2.0 2% < Selects the range (from zero to capacity) within Pushbutton which the scale can be zeroed. LFT must be 2%. Zero Range Example: Scale can be zeroed within ± 2% of calibrated zero.
Checkweigher Tare Settings Sub-block 3.x Parameter Value Description P3.0 0 = NTEP < Sets how the TARE operates based on Regulatory regulatory agency. 1 = CANADA NTEP: Allows a tare weight to be acquired at any 2 = NONE positive weight (>0). Tares can only be cleared when GROSS weight is at no load.
Technical Manual Scale Filtering Settings Sub-block 4.x Parameter Value Description P4.0 1 = Light Adjusts filter parameters P4.1 to P4.4 to a preset Filter Preset 2 = Medium < value. Use this to quickly find a starting point for 3 = Heavy scale filtering.
Checkweigher Serial Communications Sub-block 5.x Parameter Value Description P5.0 1200 Transmission speed (baud rate) for COM1. Baud Rate 2400 COM1 4800 9600 < 19200 P5.1 8-non < Parity and bits for COM1. 8-bit No parity, 7-bit Data Format 7-Evn Even parity, or 7-bit Odd parity. COM1 7-Odd P5.2...
Checkweigher Scale Diagnostics Sub-block 9.x Parameter Value Description P9.0 ‘A’XXXXX Show AD converter raw counts for diagnostic AD Raw Counts purposes. The left most display will have a blinking “A” to indicate raw counts mode. Press ENTER to exit. P9.1 XXXXXX Displays the scale’s calibration factor.
Record ALL password changes and alert the customer. If the password is lost, call the factory for assistance. The Lightspeed features a Category 1 Audit Trail System for recording changes in calibration. Two counters are utilized: Calibration Counter: Increments by 1 whenever the scale is deadloaded or calibrated.
Checkweigher TROUBLESHOOTING & ERROR MESSAGES Unit won’t power up: Check diagnostic LED lamps on the Mother board. GREEN LED OFF: The Power Supply module is NOT receiving AC power. • Verify power source (Cords, Outlets, breakers). • If power source is good, the Power Supply module may be damaged.
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