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Product Description

The weighing indicators LD5204, LD5206 are versatile, general purpose weight indicators, manufactured according to the highest quality standards. User friendly, simple and fast in operation, with an attractive stainless steel design and sophisticated hardware and software features, the LD5204, -06 models represent powerful solutions to a multitude of weighing applications.

Basic Features

  • Approved for 10,000divisions
  • Up to 70 measurements per second
  • Alibi-memory for 10,000 records
  • Excitation for up to 10 strain gauge load cells, 350Ω each (or more)
  • Large, 6 digit LED (20mm) or LCD (16mm) display with status anounciators
  • 8 keys membrane keyboard with tactile feedback
  • Single or dual interval / range
  • Analogue and digital ltering
  • Standard RS232 for PC or printer connection
  • 1 digital input (programmable as tilt input or to tare scale remotely or for other purposes)
  • 2 digital outputs (programmable as weight set points or as other control outputs)
  • Stainless steel enclosure (IP65) or powder coated aluminium (IP40)

Application

  • Bench and oor scales, weighbridges and dual scale applications requiring weight indication and professional documentation
  • Silo weighing – weight indication and data collection
  • Piece counting (single or dual scale congurations)
  • Computer based weighing systems

Operating Keys

  • On / off - Zero scale
  • Tare key
  • Tare recall key
  • Print key
  • Total key
  • Piece counting key
  • Scale exchange key

Options

  • Second serial interface RS485 or RS232 with protocol output
  • Analogue output (current or voltage)
  • Second analogue input for second scale connection
  • Real time clock

Specifications

DISPLAY - KEYBOARD

DISPLAY: 6 digit, 7 segment, LED 20mm (LD5204) or LCD 16 mm (LD5206)
STATUS ANNUNCIATORS: No motion, zero, tare in use, net, scale in operation (#1 or #2 or
KEYBOARD: SUM #1+2, if second scale connected), piece counting mode
DECIMAL POINT SETTING : 8 key membrane keyboard with tactile feedback
DISPLAY STEP: Between any digit of the weight display
DISPLAY DIGITS: 1, 2, 5, 10, 20, 50, 100, 200 (set-up selectable) 4, 5, 6 (set-up selectable)

SCALE CALIBRATION & FUCTIONS

CALIBRATION: Digital calibration (dead load and span) and scale parametrization via keyboard dialogue menu.
WEIGHING FUNCTIONS: The weight display can be set to any capacity and resolution with 6 digits (subject to application and regulations). Calibration of two analogue inputs (standard & optional) with individual coecients. Electronic calibration can be also performed via the m V/V output values of load cells.Automatic zero tracking, no-motion detection, auto-zero on power-up, zero, tare (max tare effect = -Max), multiple test functions
The two most signicant decades of the digital display are programmable from 1 up to 99 for the full scale range. Single or dual interval /range,auto-switching between the different display steps.
FULL SCALE RANGE: Serial EEPROM for the storage of calibration data (32KB)
MEMORIES: Flash, tally-roll (Alibi) memory capable of 10,000 weight registrations (64KB)

A/D CONVERTER

TYPE: Sigma-Delta ratiometric with analogue and digital ltering
CONVERSION RATE: (FIR & post itering, rolling average)
SENSITIVITY: 3 up to 70 measurements per second (set-up selectable)
ANALOGUE SIGNAL RANGE: 0.4μV/VSI for approved scales, 0.1μV/VSI for non-approved scales
RESOLUTION: -0.25 to 2mV/V (-1.25mV to – 10mV) or -0.25 to 4mV/V (-1.25mV to – 20mV)

CONTROL I/O

DIGITAL INPUT (x1): 9-24 VDC, positive common, opto-isolated to 2.5 KV, set up programmable
DIGITAL OUTPUTS (x2): 24 VDC 10%, transistor (SOURCE) darlington, positive common, max current 100 m A, opto-isolated to 2.5KV, set up programmable

POWER SUPPLY

INOX VERSION: 85-265 VAC, 50/60 Hz (alternatively 9 - 15 VDC via external source)
ALUM VERSION: 85-265 VAC, 50/60 Hz (Or via internal rechargeable battery , 6V/3Ah, for LD5206 alum)

ENVIRONMENTAL CONDITIONS / CONSTRUCTION

EMC: According to OIML R76 and EN 45501 requirements
OPERATING TEMPERATURE: -10oC to +40oC
STORAGE TEMPERATURE : -10oC to +70oC
HUMIDITY: 40% to 90% RH (non condensing)
ENCLOSURE: Stainless steel, AISI 304, sealed to IP65.Dimensions (in mm): 252(L)x152(H)x62(W)

OPTIONAL FEATURES

SECOND SERIAL PORT:RS232 or RS485, set-up programmable, 2400-57600 baud ,half duplex, (continuous output, remote printer output, EDP and master-slave protocols)
SECOND ANALOGUE INPUT: For second scale connection, with the same specications as the primary analogue input
REAL TIME CLOCK: Providing print-outs with date and time
ANALOGUE OUTPUT: Analogue output, current (0/4 -20m A) or voltage (0.02 -10V) (hardware selectable), resol. 16 bit

LINEARITY & STABILITY

LINEARITY: Within 0.002 % of full scale
LONG TERM STABILITY: 0.005 % of full scale per year
TEMPERATURE COEF.: Deadload 2ppm / C, Span 2ppm / C

INTERFACESSERIAL COM. PORT 1

RS232, non-programmable, 2400 baud , full duplex (continuous output, printer output, print on demand and Alibi modes

LOAD CELL CONNECTION

NUMBER OF LOAD CELLS: Up to 10 strain gauge load cells, 350 Ω each (or more, provided min input impedance =35Ω)
EXCITATION: +5V alternating polarity or +5VDC (set-up selectable), with sense
CONNECTION TECHNIQUE: 6-wire technique

APPROVALS

ACCURACY CLASS III EU-Type approval for 10,000 divisions (approval Nr.: DK