ACCESSORIES FOR INSTRUMENTATION

Enhance your weighing and force monitoring systems with Loadtech’s range of reliable and rugged accessories. These add-on items are designed to complement your load cell instrumentation and ensure optimal performance, protection, and visibility in demanding industrial environments.It is widely used in precise, low to medium capacity weighing applications - especially where compact and sensitive instrumenation is required.

Loadtech

Importance

Using extra add-ons like large displays, junction boxes, and surge protectors in your load cell systems is not just about added convenience — it’s about maximizing performance, safety, reliability, and user experience.

LT543- 3way Junction box

Application

The load cell junction / summation box allows for easy connection / summation of up to 2 load cells to be connected in parallel to the load cell instrumentation.

Features

  • Easy connection / summation of up to 2 load cells in parallel
  • IP65 Protection rating
  • Bi-color LED indicating the presence of ac/dc load cell excitation voltage or incorrect dc polarity
  • Supports 4 or 6 wire load cells
  • Clear lid for easy fault finding
  • Shielded 6-wire connection to the load cell instrumentation
  • Removable connectors for easy fault finding
  • Color coded cable glands
LT540-5 way Junction Box

Application

The load cell junction / summation box allows for easy connection / summation of up to 4 load cells to be connected in
parallel to the load cell instrumentation.

Features

  • Easy connection / summation of up to 4 load cells in parallel
  • IP65 Protection rating
  • Bi-color LED indicating the presence of ac/dc load cell excitation voltage or incorrect dc polarity
  • Supports 4 or 6 wire load cells
  • Clear lid for easy fault finding
  • Shielded 6-wire connection to the load cell instrumentation
  • Removable connectors for easy fault finding
  • Color coded cable glands
LT580-5way Smart Junction Box

Application

The SMART load cell junction/summation box connects 1–4 load cells in parallel to host instrumentation, continuously monitoring each cell and excitation voltage. If a fault occurs—or if power is lost—it de‑energizes a relay to prevent incorrect weighing. It can be powered directly from the host’s excitation supply or via an external source

Features

  • The SMART junction box can be powered from the host weighing instruments excitation voltage or by an external power supply.
  • The SMART junction box can detect an error if any of the following occurs:
  • An open or short circuit on any of the load cells or connectors;
  • Any of the load cells are open circuit or any load cell has exceed 3.5mV/V;
  • Any load cell exceeds the user set low or high mV range;
  • Any of the load cells is out of balance with the user set error band;
  • The excitation voltage is above or below the user set limits.
LT1401-57mm Large display

Application

The LT1400 (4-digit) and LT1401 (6-digit) intelligent 7-segment displays are designed for industrial environments requiring clear, distant-readable numeric indicators. With 57mm (2.3″) high-brightness digits, it is suitable for:

  • Remote display of process inputs (e.g., temperature, pressure, level)

  • Weighing systems

  • General industrial monitoring applications

    These displays can be wall-mounted using the aluminum enclosures with flanged plastic ends

Features

  • 57mm 2.3” Extra Large 7-segment intelligent display, Excellent visibility even at 25m viewing distance

  • 4 or 6 digit model available, Rugged aluminium enclosure with flanged side plastic ends

    RS232 and RS485 serial interfaces standard

  • Various protocols and software libraries available*

  • Software service available for protocol modifications*

  • Over/under range and communication error messages

  • Wide input supply voltage range of 12 to 30Vdc with built in voltage reversal and over voltage protection for harsh environments.

  • Transmit and Receive LEDS for RS232 and RS485 for in the field communication diagnostics

LT1410-100mm Large display

Application

The LT1410 (4‑digit) and LT1411 (6‑digit) extra-large 7‑segment displays deliver crystal-clear readings from up to 50 m. Housed in rugged IP65 powder‑coated steel enclosures, they’re ideal for remote monitoring in demanding environments—perfect for displaying process values (e.g., temperature, pressure, level), weighing systems, and industrial indicators.

Features

  • 100 mm (4″) ultra-bright digits with visibility up to 50 m

  • Built-in RS232 and RS485 serial ports with support for multiple and custom protocols

  • Rugged IP65 powder‑coated steel enclosure for harsh environments

  • Easy-to-navigate menu system for configuring communications and display settings

  • Standard protections and alerts for over/under-range and communication errors

  • Wide 12–30 V DC supply with built-in over-voltage and reverse-polarity protection

  • Optional enhancements: universal mains input (90–265 VAC), RTC, and 2.4 GHz radio modem

  • RS232/RS485 TX/RX LEDs and field-upgradable firmware via RS232

LT1260-Surge Protector

Application

The LT1260 load cell surge protector safeguards weighing systems against severe over-voltage and high-current impulses. Installed between junction boxes and measurement instruments—and grounded via an external M8 stud—it provides robust protection for both 4‑ and 6‑wire load cell setups in challenging environments.

Features

  • Triple-stage protection for signal, excitation, and shield lines:

    1. 3‑terminal gas discharge tubes—differential and common-mode surge suppression

    2. Fusible series resistors—limit current and fail safely during extreme surges

    3. Low-capacitance diode clamp—handles fast transients until gas tubes activate

      This combination outperforms single-stage diode-only protectors

  • IP65-rated polycarbonate housing with clear lid—durable and weather-resistant, with easy visual fault detection

  • Supports AC/DC excitation and both 4- and 6-wire configurations

  • External ground clamp for reliable earthing

  • Designed to withstand 5 kA surge (8/20 μs), with stage-specific clamping: ~±90 V (stage 1), ≤1 Ω resistance (stage 2), ~±24 V clamp (stage 3)

  • Shielded 6-wire cage-clamp connectors and clear lid for quick troubleshooting

  • Compact polycarbonate unit (~160 × 80 × 55 mm, 340 g) suitable for field installation

LT1322 Tacho Meter

Application

  • Designed to measure belt speed, especially when used alongside the LT1322 Tacho Meter.

  • Complements the LT1320 Belt Weighing Indicator, allowing for easy presetting.

  • Suitable for detecting metal objects in motion through contactless and wear-free sensing.

  • Ideal for integration in conveyor systems or belt-driven setups where speed tracking and object detection are required.

Features

  • Wheel Diameter: 205mm

  • Output Options: PNP / NPN selectable by customer; default is PNP

  • Inductive Sensor Technology:

    • Detects metal objects using a high-frequency electromagnetic AC field

    • Field generated via RLC circuit with a ferrite coil

  • Pulse Rate: Determined by the belt speed per minute

  • Build Quality:

    • Constructed from alloy steel

    • Finished with powder coating

    • Uses off-the-shelf spares

  • Installation: Robust design, easy to install

  • Cost: Market’s most affordable Tacho meter

LT1920 Load Cell Simulator

Application

  • The LT1920 is a portable load cell simulator designed for:

    • Testing, troubleshooting, and calibrating load cell installations.

  • It is ideal for on-site diagnostic and calibration tasks where portability and accuracy are essential.

  • Simulates realistic load cell output signals to verify weighing system performance without requiring actual mechanical loads.

Features

  • Portable design for convenient on-site use.

  • Generates fixed calibrated mV/V output step signals:

    • Nine total outputs:

      • Eight 0.5mV/V steps ranging from -0.5mV/V to 3.0mV/V

      • One additional step at 4.5mV/V

  • Equivalent bridge impedance: 350 Ohms

  • Accepts excitation voltage up to 15Vac/dc

  • Binding posts:

    • Color-coded to ISA S37.8 standard

    • Compatible with banana plugs or 14-gauge wire